Mycorrhizae - Revision history

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	Ectomycorrhizae associations involve the most diverse category of myocrrhizae: more than 5,000 species of fungi (mainly Basidiomycetes) with a limited number of Ascomycetes and Zygomycetes. <ref> Futai, K., Taniguchi, T., Kataoka, R. (2008). Ectomycorrhizae and Their Importance in Forest Ecosystems. In: Siddiqui, Z.A., Akhtar, M.S., Futai, K. (Eds). ''Mycorrhizae: Sustainable Agriculture and Forestry''. Springer, Dordrecht. </ref> Major groups of plants for ECM include most herbs, grasses and many trees, hornworts, and liverworts. There are approximately 200,000 number of plant species hosing Ectomycorrhize fungi. <ref>van der Heiden, M. G.A., Martin, F.M., Selosse, M., & Sanders, I.R. (2015). Mycorrhizal ecology and evolution: the past, the present, and the future. ''New Phytologist'', 205(4), 1406-1423.</ref> The majority of ECM synthesizing fungi belong to the classes Basidiomycetes and Ascomycetes that form fruiting bodies like mushrooms, puffballs, coral fungi, toadstools, truffles, etc. <ref>Charya, L. S., & Garg, S. (2019). Advances in methods and practices of ectomycorrhizal research. In S. N. Meena and M. M. Nalk (Eds.). ''Advances in Biological Science Research''. Academic Press. </ref> Ectomycorrhizae are more common in the temperate zones of the world comparing to the tropics. In the northern temperate regions, plants such as pine (Pinus), spruce (Picea), fir (Abies), poplar (Populus), willow (Salix), beech (Fagus), birch (Betula) and oak (Quercus) typify the Ectomycorrhizae association. In the southern hemisphere, Eucalyptus and Northofagus (Southern Beech) are important genera. In total, 140 genera in 43 plant families have been identified as forming Ectomycorrhizae.<ref> Moore, D., Ectomycorrhizas. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ectomycorrhizas.htm </ref>		Ectomycorrhizae associations involve the most diverse category of myocrrhizae: more than 5,000 species of fungi (mainly Basidiomycetes) with a limited number of Ascomycetes and Zygomycetes. <ref> Futai, K., Taniguchi, T., Kataoka, R. (2008). Ectomycorrhizae and Their Importance in Forest Ecosystems. In: Siddiqui, Z.A., Akhtar, M.S., Futai, K. (Eds). ''Mycorrhizae: Sustainable [[Agriculture]] and Forestry''. Springer, Dordrecht. </ref> Major groups of plants for ECM include most herbs, grasses and many trees, hornworts, and liverworts. There are approximately 200,000 number of plant species hosing Ectomycorrhize fungi. <ref>van der Heiden, M. G.A., Martin, F.M., Selosse, M., & Sanders, I.R. (2015). Mycorrhizal ecology and evolution: the past, the present, and the future. ''New Phytologist'', 205(4), 1406-1423.</ref> The majority of ECM synthesizing fungi belong to the classes Basidiomycetes and Ascomycetes that form fruiting bodies like mushrooms, puffballs, coral fungi, toadstools, truffles, etc. <ref>Charya, L. S., & Garg, S. (2019). Advances in methods and practices of ectomycorrhizal research. In S. N. Meena and M. M. Nalk (Eds.). ''Advances in Biological Science Research''. Academic Press. </ref> Ectomycorrhizae are more common in the temperate zones of the world comparing to the tropics. In the northern temperate regions, plants such as pine (Pinus), spruce (Picea), fir (Abies), poplar (Populus), willow (Salix), beech (Fagus), birch (Betula) and oak (Quercus) typify the Ectomycorrhizae association. In the southern hemisphere, Eucalyptus and Northofagus (Southern Beech) are important genera. In total, 140 genera in 43 plant families have been identified as forming Ectomycorrhizae.<ref> Moore, D., Ectomycorrhizas. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ectomycorrhizas.htm </ref>

	== Endomycorrhizae ==		== Endomycorrhizae ==

Colincli: /* Ectomycorrhizae */

2022-05-11T02:40:31Z

Ectomycorrhizae

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	== Ectomycorrhizae ==		== Ectomycorrhizae ==
	[[File:Ectomycorrhizal_roots.png\|thumb\| Ectomycorrhizal roots. Small parts of the root systems various forest tree species to illustrate the morphological diversity of ectomycorrhizal roots. <br />'''A''': with the basidiomycetous truffle ''Hysterangium''; <br />'''B''': mycorrhizal fungus ''Rhizopogon vinicolor''; <br />'''C''': mycorrhizal fungus Poria terrestris; <br />'''D''': mycorrhizal fungus ''Lactarius sanguifluus''; <br />'''E''': Sitka spruce; <br />'''F''': Monterey pine. <ref> MMoore, D., Ectomycorrhizas. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ectomycorrhizas.htm </ref>]]		[[File:Ectomycorrhizal_roots.png\|thumb\| Ectomycorrhizal roots. Small parts of the root systems various forest tree species to illustrate the morphological diversity of ectomycorrhizal roots. <br />'''A''': with the basidiomycetous truffle ''Hysterangium''; <br />'''B''': mycorrhizal fungus ''Rhizopogon vinicolor''; <br />'''C''': mycorrhizal fungus Poria terrestris; <br />'''D''': mycorrhizal fungus ''Lactarius sanguifluus''; <br />'''E''': Sitka spruce; <br />'''F''': Monterey pine. <ref> MMoore, D., Ectomycorrhizas. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ectomycorrhizas.htm </ref>]]
	Ectomycorrhizae (ECM) are characterized by the presence of a fungal mantle that envelops host roots and a Hartig net that surrounds root epidermal or cortical cells. It provides a large surface area for resource exchange. Hormonal interactions between plant and fungus lead to dramatically altered root architecture, such as the suppression of [[root hairs]]. The external component of Ectomycorrhizae associations consists of hyphae with cross walls that partition cellular components. These hyphae sometimes coalesce into rhizomorphs that attach the mycelium to serve in water uptake. <ref> Nancy, C., & Gehring, C. A. (2007). Mycorrhizas: Symbiotic Mediators of [[Rhizosphere]] and Ecosystem Processes. In Z.G.Cardon and J. L. Whitebeck (Eds.). ''The Rhizosphere''. Academic Press. </ref>		Ectomycorrhizae (ECM) are characterized by the presence of a fungal mantle that envelops host roots and a Hartig net that surrounds root epidermal or cortical cells. It provides a large surface area for resource exchange. Hormonal interactions between plant and fungus lead to dramatically altered root architecture, such as the suppression of [[root hairs]]. The external component of Ectomycorrhizae associations consists of hyphae with cross walls that partition cellular components. These hyphae sometimes coalesce into rhizomorphs that attach the mycelium to serve in water uptake.<ref> Nancy, C., & Gehring, C. A. (2007). Mycorrhizas: Symbiotic Mediators of [[Rhizosphere]] and Ecosystem Processes. In Z.G.Cardon and J. L. Whitebeck (Eds.). ''The Rhizosphere''. Academic Press. </ref>


	Ectomycorrhizae associations involve the most diverse category of myocrrhizae: more than 5,000 species of fungi (mainly Basidiomycetes) with a limited number of Ascomycetes and Zygomycetes. <ref> Futai, K., Taniguchi, T., Kataoka, R. (2008). Ectomycorrhizae and Their Importance in Forest Ecosystems. In: Siddiqui, Z.A., Akhtar, M.S., Futai, K. (Eds). ''Mycorrhizae: Sustainable Agriculture and Forestry''. Springer, Dordrecht. </ref> Major groups of plants for ECM include most herbs, grasses and many trees, hornworts, and liverworts. There are approximately 200,000 number of plant species hosing Ectomycorrhize fungi. <ref>van der Heiden, M. G.A., Martin, F.M., Selosse, M., & Sanders, I.R. (2015). Mycorrhizal ecology and evolution: the past, the present, and the future. ''New Phytologist'', 205(4), 1406-1423.</ref> The majority of ECM synthesizing fungi belong to the classes Basidiomycetes and Ascomycetes that form fruiting bodies like mushrooms, puffballs, coral fungi, toadstools, truffles, etc. <ref>Charya, L. S., & Garg, S. (2019). Advances in methods and practices of ectomycorrhizal research. In S. N. Meena and M. M. Nalk (Eds.). ''Advances in Biological Science Research''. Academic Press. </ref> Ectomycorrhizae are more common in the temperate zones of the world comparing to the tropics. In the northern temperate regions, plants such as pine (Pinus), spruce (Picea), fir (Abies), poplar (Populus), willow (Salix), beech (Fagus), birch (Betula) and oak (Quercus) typify the Ectomycorrhizae association. In the southern hemisphere, Eucalyptus and Northofagus (Southern Beech) are important genera. In total, 140 genera in 43 plant families have been identified as forming Ectomycorrhizae. <ref> Moore, D., Ectomycorrhizas. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ectomycorrhizas.htm </ref>		Ectomycorrhizae associations involve the most diverse category of myocrrhizae: more than 5,000 species of fungi (mainly Basidiomycetes) with a limited number of Ascomycetes and Zygomycetes. <ref> Futai, K., Taniguchi, T., Kataoka, R. (2008). Ectomycorrhizae and Their Importance in Forest Ecosystems. In: Siddiqui, Z.A., Akhtar, M.S., Futai, K. (Eds). ''Mycorrhizae: Sustainable Agriculture and Forestry''. Springer, Dordrecht. </ref> Major groups of plants for ECM include most herbs, grasses and many trees, hornworts, and liverworts. There are approximately 200,000 number of plant species hosing Ectomycorrhize fungi. <ref>van der Heiden, M. G.A., Martin, F.M., Selosse, M., & Sanders, I.R. (2015). Mycorrhizal ecology and evolution: the past, the present, and the future. ''New Phytologist'', 205(4), 1406-1423.</ref> The majority of ECM synthesizing fungi belong to the classes Basidiomycetes and Ascomycetes that form fruiting bodies like mushrooms, puffballs, coral fungi, toadstools, truffles, etc. <ref>Charya, L. S., & Garg, S. (2019). Advances in methods and practices of ectomycorrhizal research. In S. N. Meena and M. M. Nalk (Eds.). ''Advances in Biological Science Research''. Academic Press. </ref> Ectomycorrhizae are more common in the temperate zones of the world comparing to the tropics. In the northern temperate regions, plants such as pine (Pinus), spruce (Picea), fir (Abies), poplar (Populus), willow (Salix), beech (Fagus), birch (Betula) and oak (Quercus) typify the Ectomycorrhizae association. In the southern hemisphere, Eucalyptus and Northofagus (Southern Beech) are important genera. In total, 140 genera in 43 plant families have been identified as forming Ectomycorrhizae.<ref> Moore, D., Ectomycorrhizas. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ectomycorrhizas.htm </ref>

	== Endomycorrhizae ==		== Endomycorrhizae ==

Hzhang45: /* Orchid Mycorrhizae */

2022-05-07T21:22:25Z

Orchid Mycorrhizae

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	[[File:Orchid.png\|thumb\|The possible model of nutrient exchange in orchid mycorrhizas. <ref> Yeh, C., Chung, K., Liang, C., & Tsai, W. (2019). New Insights into the Symbiotic Relationship between Orchids and Fungi, ''Applied Biosciences and Bioengineering, 9(3), 585. </ref>]]		[[File:Orchid.png\|thumb\|The possible model of nutrient exchange in orchid mycorrhizas. <ref> Yeh, C., Chung, K., Liang, C., & Tsai, W. (2019). New Insights into the Symbiotic Relationship between Orchids and Fungi, ''Applied Biosciences and Bioengineering, 9(3), 585. </ref>]]
	=== Orchid Mycorrhizae ===		=== Orchid Mycorrhizae ===
	Orchid mycorrhizae is an endomycorrhizal association with an extensive intracellular mycelium, occurring in the roots of the members of the Orchidaceae. Orchid mycorrhizae supports host plant with nutrients, especially sugars and water. The transport of carbon compounds from fungus to host plant may be realized through the plasmatic membrane of living pelotons (in trophocytic phase), or by phagocytosis of collapsed fungal endophyte (in phagocytic phase). <ref> Orchid mycorrhiza, https://www.ibot.cas.cz/mykosym/en_orch.html </ref> The infection of an orchid seed by fungi occurs after the embryo takes up water and swells, rupturing the seed coat. The embryo emerges and produces a few root hairs, which hyphae rapidly colonise. As hyphae penetrate a cell of the embryo, the plasma membrane of the orchid cell invaginates, and the hypha becomes surrounded by a thin layer of cytoplasm. An orchid embryo consists of ~~only~~ a few hundred cells and the fungi spread quickly from cell to cell. <ref> Moored, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/orchid.htm </ref>		Orchid mycorrhizae is an endomycorrhizal association with an extensive intracellular mycelium, occurring in the roots of the members of the Orchidaceae. Orchid mycorrhizae supports host plant with nutrients, especially sugars and water. The transport of carbon compounds from fungus to host plant may be realized through the plasmatic membrane of living pelotons (in trophocytic phase), or by phagocytosis of collapsed fungal endophyte (in phagocytic phase). <ref> Orchid mycorrhiza, https://www.ibot.cas.cz/mykosym/en_orch.html </ref> The infection of an orchid seed by fungi occurs after the embryo takes up water and swells, rupturing the seed coat. The embryo emerges and produces a few root hairs, which hyphae rapidly colonise. When hyphae penetrate a cell of the embryo, the plasma membrane of the orchid cell invaginates, and the hypha becomes surrounded by a thin layer of cytoplasm. An orchid embryo consists of a few hundred cells and the fungi spread quickly from cell to cell. <ref> Moored, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/orchid.htm </ref>

	==References==		==References==
	{{reflist}}		{{reflist}}

Hzhang45: /* Arbuscular Mycorrhizae */

2022-05-07T21:20:09Z

Arbuscular Mycorrhizae

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	=== Arbuscular Mycorrhizae ===		=== Arbuscular Mycorrhizae ===
	Arbuscular mycorrhiza (AM) is a symbiosis between plants and members of an ancient phylum of fungi, the [[Glomeromycota]], improves the supply of water and nutrients, such as phosphate and nitrogen, to the host plant. Up to 20% of plant-fixed carbon is transferred to the fungus. AM development is accompanied by an exchange of signalling molecules between the symbionts. <ref> Parniske, M. (2008). Arbuscular mycorrhiza: the mother of plant root endosymbioses, ''Nature Reviews Microbiology'', 6, 763-775. </ref> AM form vesicles, arbuscules, and hyphae in roots, and also spores and hyphae in the rhizosphere. Formation of hyphal network by the AM with plant roots significantly enhances the access of roots to a large soil surface area, causing improvement in plant growth. AM improve plant nutrition by increasing the availability as well as translocation of various nutrients; improve the the quality of soil by influencing its structure and texture, and hence plant health. <ref> Zou, Y. N., Srivastava, A. K., & Wu, Q. S.(2016). Glomalin: a potential soil conditioner for perennial fruits. ''International Journal of Agricultural Biology''. 18, 293–297.</ref>		Arbuscular mycorrhiza (AM) is a symbiosis between plants and members of an ancient phylum of fungi, the [[Glomeromycota]]. It improves the supply of water and nutrients, such as phosphate and nitrogen, to the host plant. Up to 20% of plant-fixed carbon is transferred to the fungus. AM development is accompanied by an exchange of signalling molecules between the symbionts. <ref> Parniske, M. (2008). Arbuscular mycorrhiza: the mother of plant root endosymbioses, ''Nature Reviews Microbiology'', 6, 763-775. </ref> AM form vesicles, arbuscules, and hyphae in roots, and also spores and hyphae in the rhizosphere. Formation of hyphal network by the AM with plant roots significantly enhances the access of roots to a large soil surface area, causing improvement in plant growth. AM improve plant nutrition by increasing the availability as well as translocation of various nutrients; improve the the quality of soil by influencing its structure and texture, and hence plant health. <ref> Zou, Y. N., Srivastava, A. K., & Wu, Q. S.(2016). Glomalin: a potential soil conditioner for perennial fruits. ''International Journal of Agricultural Biology''. 18, 293–297.</ref>

	[[File:Ericoid.png\|thumb\|left\|Ericoid mycorrhizal root of Epacris impressa. <ref> Moore, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ericoid.htm </ref>]]		[[File:Ericoid.png\|thumb\|left\|Ericoid mycorrhizal root of Epacris impressa. <ref> Moore, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ericoid.htm </ref>]]

	=== Ericoid Mycorrhizae ===		=== Ericoid Mycorrhizae ===
	Ericoid mycorrhizae (ERM) are a restricted group of fungi associated with a restricted [[diversity]] of plant species in the Ericaceae, Epacridaceae, and Empetraceae. Hymenoscyphus (Pezizella) ericae was the first fungal species identified as an ericaceous endosymbiont. <ref> Dighton, J. (2009). Mycorrhizae. In M. Schaechter (Eds.). ''Encyclopedia of Microbiology (Third Edition)'', Academic Press.</ref>. ERM fungi are versatile fungi because, besides promoting growth and health of ericaceous plants as endomycorrhizal symbionts, they are also reported as endophytes in the roots of other plant species. <ref> Perotto, S., Daghino, S., & Martino, E. (2018). Ericoid mycorrhizal fungi and their genomes: another side to the mycorrhizal symbiosis?, ''New Phytologis'', 220(4), 1141-1147. </ref> Colonisation by ERM is restricted to expanded epidermal cells (i.e. mature cells),therefore the apical region of the hair root remains uncolonised until the cells differentiate and mature. <ref> Moore, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ericoid.htm </ref>		Ericoid mycorrhizae (ERM) are a restricted group of fungi associated with a restricted [[diversity]] of plant species in the Ericaceae, Epacridaceae, and Empetraceae. Hymenoscyphus (Pezizella) ericae was the first fungal species identified as an ericaceous endosymbiont. <ref> Dighton, J. (2009). Mycorrhizae. In M. Schaechter (Eds.). ''Encyclopedia of Microbiology (Third Edition)'', Academic Press.</ref>. ERM fungi are versatile fungi because, besides promoting growth and health of ericaceous plants as endomycorrhizal symbionts, they are also reported as endophytes in the roots of other plant species. <ref> Perotto, S., Daghino, S., & Martino, E. (2018). Ericoid mycorrhizal fungi and their genomes: another side to the mycorrhizal symbiosis?, ''New Phytologis'', 220(4), 1141-1147. </ref> Colonisation by ERM is restricted to expanded epidermal cells (i.e. mature cells),therefore the apical region of the hair root remains uncolonised until the cells differentiate and mature. <ref> Moore, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ericoid.htm </ref>

Hzhang45: /* Endomycorrhizae */

2022-05-07T21:19:35Z

Endomycorrhizae

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	== Endomycorrhizae ==		== Endomycorrhizae ==
	The fungi form structures within the cortical cells and grow intercellularly. The membranes of the fungus and the plant are in direct contact with each other. <ref> Marschner, P. (2012). Rhizosphere Biology. In P. Marschner (Eds.), ''Marschner's Mineral Nutrition of Higher Plants (Thrid Edition)''. Academic Press. pp, 369-388. </ref> Endomycorrhizaes include arbuscular mycorrhizae (vesicular-arbuscular ~~mycorrhiaE, AM/VAM~~), ericoid and orchid mycorrhizae. <ref> Reddy, C. A. & Saravananm, R. S. (2013). Polymicrobial Multi-functional Approach for Enhancement of Crop Productivity, ''Advances in Applied Microbiology''. 82, 53-113. </ref>		The fungi form structures within the cortical cells and grow intercellularly. The membranes of the fungus and the plant are in direct contact with each other. <ref> Marschner, P. (2012). Rhizosphere Biology. In P. Marschner (Eds.), ''Marschner's Mineral Nutrition of Higher Plants (Thrid Edition)''. Academic Press. pp, 369-388. </ref> Endomycorrhizaes include arbuscular mycorrhizae (vesicular-arbuscular mycorrhiae), ericoid mycorrhizae and orchid mycorrhizae. <ref> Reddy, C. A. & Saravananm, R. S. (2013). Polymicrobial Multi-functional Approach for Enhancement of Crop Productivity, ''Advances in Applied Microbiology''. 82, 53-113. </ref>
	[[File:AM.png\|thumb\|left\| Stained wheat root showing AM fungal structures (blue). <ref> Smith, S., Manjarrez, M., & Smith, A. Fact Sheets - Arbuscular Mycorrhizas - SA, https://soilquality.org.au/factsheets/arbuscular-mycorrhizas-s-a. </ref>]]		[[File:AM.png\|thumb\|left\| Stained wheat root showing AM fungal structures (blue). <ref> Smith, S., Manjarrez, M., & Smith, A. Fact Sheets - Arbuscular Mycorrhizas - SA, https://soilquality.org.au/factsheets/arbuscular-mycorrhizas-s-a. </ref>]]

Hzhang45: /* Endomycorrhizae */

2022-05-07T21:18:57Z

Endomycorrhizae

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	== Endomycorrhizae ==		== Endomycorrhizae ==
	The fungi form structures within the cortical cells and ~~also~~ grow intercellularly. The membranes of the fungus and the plant are in direct contact with each other. <ref> Marschner, P. (2012). Rhizosphere Biology. In P. Marschner (Eds.), ''Marschner's Mineral Nutrition of Higher Plants (Thrid Edition)''. Academic Press. pp, 369-388. </ref> Endomycorrhizaes include arbuscular mycorrhizae (vesicular-arbuscular mycorrhiaE, AM/VAM), ericoid and orchid mycorrhizae. <ref> Reddy, C. A. & Saravananm, R. S. (2013). Polymicrobial Multi-functional Approach for Enhancement of Crop Productivity, ''Advances in Applied Microbiology''. 82, 53-113. </ref>		The fungi form structures within the cortical cells and grow intercellularly. The membranes of the fungus and the plant are in direct contact with each other. <ref> Marschner, P. (2012). Rhizosphere Biology. In P. Marschner (Eds.), ''Marschner's Mineral Nutrition of Higher Plants (Thrid Edition)''. Academic Press. pp, 369-388. </ref> Endomycorrhizaes include arbuscular mycorrhizae (vesicular-arbuscular mycorrhiaE, AM/VAM), ericoid and orchid mycorrhizae. <ref> Reddy, C. A. & Saravananm, R. S. (2013). Polymicrobial Multi-functional Approach for Enhancement of Crop Productivity, ''Advances in Applied Microbiology''. 82, 53-113. </ref>
	[[File:AM.png\|thumb\|left\| Stained wheat root showing AM fungal structures (blue). <ref> Smith, S., Manjarrez, M., & Smith, A. Fact Sheets - Arbuscular Mycorrhizas - SA, https://soilquality.org.au/factsheets/arbuscular-mycorrhizas-s-a. </ref>]]		[[File:AM.png\|thumb\|left\| Stained wheat root showing AM fungal structures (blue). <ref> Smith, S., Manjarrez, M., & Smith, A. Fact Sheets - Arbuscular Mycorrhizas - SA, https://soilquality.org.au/factsheets/arbuscular-mycorrhizas-s-a. </ref>]]

Hzhang45: /* Endomycorrhizae */

2022-05-07T21:15:58Z

Endomycorrhizae

← Older revision		Revision as of 17:15, 7 May 2022
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	Arbuscular mycorrhiza (AM) is a symbiosis between plants and members of an ancient phylum of fungi, the [[Glomeromycota]], improves the supply of water and nutrients, such as phosphate and nitrogen, to the host plant. Up to 20% of plant-fixed carbon is transferred to the fungus. AM development is accompanied by an exchange of signalling molecules between the symbionts. <ref> Parniske, M. (2008). Arbuscular mycorrhiza: the mother of plant root endosymbioses, ''Nature Reviews Microbiology'', 6, 763-775. </ref> AM form vesicles, arbuscules, and hyphae in roots, and also spores and hyphae in the rhizosphere. Formation of hyphal network by the AM with plant roots significantly enhances the access of roots to a large soil surface area, causing improvement in plant growth. AM improve plant nutrition by increasing the availability as well as translocation of various nutrients; improve the the quality of soil by influencing its structure and texture, and hence plant health. <ref> Zou, Y. N., Srivastava, A. K., & Wu, Q. S.(2016). Glomalin: a potential soil conditioner for perennial fruits. ''International Journal of Agricultural Biology''. 18, 293–297.</ref>		Arbuscular mycorrhiza (AM) is a symbiosis between plants and members of an ancient phylum of fungi, the [[Glomeromycota]], improves the supply of water and nutrients, such as phosphate and nitrogen, to the host plant. Up to 20% of plant-fixed carbon is transferred to the fungus. AM development is accompanied by an exchange of signalling molecules between the symbionts. <ref> Parniske, M. (2008). Arbuscular mycorrhiza: the mother of plant root endosymbioses, ''Nature Reviews Microbiology'', 6, 763-775. </ref> AM form vesicles, arbuscules, and hyphae in roots, and also spores and hyphae in the rhizosphere. Formation of hyphal network by the AM with plant roots significantly enhances the access of roots to a large soil surface area, causing improvement in plant growth. AM improve plant nutrition by increasing the availability as well as translocation of various nutrients; improve the the quality of soil by influencing its structure and texture, and hence plant health. <ref> Zou, Y. N., Srivastava, A. K., & Wu, Q. S.(2016). Glomalin: a potential soil conditioner for perennial fruits. ''International Journal of Agricultural Biology''. 18, 293–297.</ref>

			[[File:Ericoid.png\|thumb\|left\|Ericoid mycorrhizal root of Epacris impressa. <ref> Moore, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ericoid.htm </ref>]]
	=== Ericoid Mycorrhizae ===		=== Ericoid Mycorrhizae ===
	~~[[File:Ericoid.png\|thumb\|left\|Ericoid mycorrhizal root of Epacris impressa. <ref> Moore, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ericoid.htm </ref>]]~~
	Ericoid mycorrhizae (ERM) are a restricted group of fungi associated with a restricted [[diversity]] of plant species in the Ericaceae, Epacridaceae, and Empetraceae. Hymenoscyphus (Pezizella) ericae was the first fungal species identified as an ericaceous endosymbiont. <ref> Dighton, J. (2009). Mycorrhizae. In M. Schaechter (Eds.). ''Encyclopedia of Microbiology (Third Edition)'', Academic Press.</ref>. ERM fungi are versatile fungi because, besides promoting growth and health of ericaceous plants as endomycorrhizal symbionts, they are also reported as endophytes in the roots of other plant species. <ref> Perotto, S., Daghino, S., & Martino, E. (2018). Ericoid mycorrhizal fungi and their genomes: another side to the mycorrhizal symbiosis?, ''New Phytologis'', 220(4), 1141-1147. </ref> Colonisation by ERM is restricted to expanded epidermal cells (i.e. mature cells),therefore the apical region of the hair root remains uncolonised until the cells differentiate and mature. <ref> Moore, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ericoid.htm </ref>		Ericoid mycorrhizae (ERM) are a restricted group of fungi associated with a restricted [[diversity]] of plant species in the Ericaceae, Epacridaceae, and Empetraceae. Hymenoscyphus (Pezizella) ericae was the first fungal species identified as an ericaceous endosymbiont. <ref> Dighton, J. (2009). Mycorrhizae. In M. Schaechter (Eds.). ''Encyclopedia of Microbiology (Third Edition)'', Academic Press.</ref>. ERM fungi are versatile fungi because, besides promoting growth and health of ericaceous plants as endomycorrhizal symbionts, they are also reported as endophytes in the roots of other plant species. <ref> Perotto, S., Daghino, S., & Martino, E. (2018). Ericoid mycorrhizal fungi and their genomes: another side to the mycorrhizal symbiosis?, ''New Phytologis'', 220(4), 1141-1147. </ref> Colonisation by ERM is restricted to expanded epidermal cells (i.e. mature cells),therefore the apical region of the hair root remains uncolonised until the cells differentiate and mature. <ref> Moore, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ericoid.htm </ref>

Hzhang45: /* Endomycorrhizae */

2022-05-07T21:15:26Z

Endomycorrhizae

← Older revision		Revision as of 17:15, 7 May 2022
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	Ericoid mycorrhizae (ERM) are a restricted group of fungi associated with a restricted [[diversity]] of plant species in the Ericaceae, Epacridaceae, and Empetraceae. Hymenoscyphus (Pezizella) ericae was the first fungal species identified as an ericaceous endosymbiont. <ref> Dighton, J. (2009). Mycorrhizae. In M. Schaechter (Eds.). ''Encyclopedia of Microbiology (Third Edition)'', Academic Press.</ref>. ERM fungi are versatile fungi because, besides promoting growth and health of ericaceous plants as endomycorrhizal symbionts, they are also reported as endophytes in the roots of other plant species. <ref> Perotto, S., Daghino, S., & Martino, E. (2018). Ericoid mycorrhizal fungi and their genomes: another side to the mycorrhizal symbiosis?, ''New Phytologis'', 220(4), 1141-1147. </ref> Colonisation by ERM is restricted to expanded epidermal cells (i.e. mature cells),therefore the apical region of the hair root remains uncolonised until the cells differentiate and mature. <ref> Moore, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ericoid.htm </ref>		Ericoid mycorrhizae (ERM) are a restricted group of fungi associated with a restricted [[diversity]] of plant species in the Ericaceae, Epacridaceae, and Empetraceae. Hymenoscyphus (Pezizella) ericae was the first fungal species identified as an ericaceous endosymbiont. <ref> Dighton, J. (2009). Mycorrhizae. In M. Schaechter (Eds.). ''Encyclopedia of Microbiology (Third Edition)'', Academic Press.</ref>. ERM fungi are versatile fungi because, besides promoting growth and health of ericaceous plants as endomycorrhizal symbionts, they are also reported as endophytes in the roots of other plant species. <ref> Perotto, S., Daghino, S., & Martino, E. (2018). Ericoid mycorrhizal fungi and their genomes: another side to the mycorrhizal symbiosis?, ''New Phytologis'', 220(4), 1141-1147. </ref> Colonisation by ERM is restricted to expanded epidermal cells (i.e. mature cells),therefore the apical region of the hair root remains uncolonised until the cells differentiate and mature. <ref> Moore, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ericoid.htm </ref>

			[[File:Orchid.png\|thumb\|The possible model of nutrient exchange in orchid mycorrhizas. <ref> Yeh, C., Chung, K., Liang, C., & Tsai, W. (2019). New Insights into the Symbiotic Relationship between Orchids and Fungi, ''Applied Biosciences and Bioengineering, 9(3), 585. </ref>]]
	=== Orchid Mycorrhizae ===		=== Orchid Mycorrhizae ===
	[[File:Orchid.png\|thumb\|The possible model of nutrient exchange in orchid mycorrhizas. <ref> Yeh, C., Chung, K., Liang, C., & Tsai, W. (2019). New Insights into the Symbiotic Relationship between Orchids and Fungi, ''Applied Biosciences and Bioengineering, 9(3), 585. </ref>]]
	Orchid mycorrhizae is an endomycorrhizal association with an extensive intracellular mycelium, occurring in the roots of the members of the Orchidaceae. Orchid mycorrhizae supports host plant with nutrients, especially sugars and water. The transport of carbon compounds from fungus to host plant may be realized through the plasmatic membrane of living pelotons (in trophocytic phase), or by phagocytosis of collapsed fungal endophyte (in phagocytic phase). <ref> Orchid mycorrhiza, https://www.ibot.cas.cz/mykosym/en_orch.html </ref> The infection of an orchid seed by fungi occurs after the embryo takes up water and swells, rupturing the seed coat. The embryo emerges and produces a few root hairs, which hyphae rapidly colonise. As hyphae penetrate a cell of the embryo, the plasma membrane of the orchid cell invaginates, and the hypha becomes surrounded by a thin layer of cytoplasm. An orchid embryo consists of only a few hundred cells and the fungi spread quickly from cell to cell. <ref> Moored, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/orchid.htm </ref>		Orchid mycorrhizae is an endomycorrhizal association with an extensive intracellular mycelium, occurring in the roots of the members of the Orchidaceae. Orchid mycorrhizae supports host plant with nutrients, especially sugars and water. The transport of carbon compounds from fungus to host plant may be realized through the plasmatic membrane of living pelotons (in trophocytic phase), or by phagocytosis of collapsed fungal endophyte (in phagocytic phase). <ref> Orchid mycorrhiza, https://www.ibot.cas.cz/mykosym/en_orch.html </ref> The infection of an orchid seed by fungi occurs after the embryo takes up water and swells, rupturing the seed coat. The embryo emerges and produces a few root hairs, which hyphae rapidly colonise. As hyphae penetrate a cell of the embryo, the plasma membrane of the orchid cell invaginates, and the hypha becomes surrounded by a thin layer of cytoplasm. An orchid embryo consists of only a few hundred cells and the fungi spread quickly from cell to cell. <ref> Moored, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/orchid.htm </ref>

	==References==		==References==
	{{reflist}}		{{reflist}}

Hzhang45: /* Endomycorrhizae */

2022-05-07T21:14:31Z

Endomycorrhizae

← Older revision		Revision as of 17:14, 7 May 2022
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	=== Orchid Mycorrhizae ===		=== Orchid Mycorrhizae ===
			[[File:Orchid.png\|thumb\|The possible model of nutrient exchange in orchid mycorrhizas. <ref> Yeh, C., Chung, K., Liang, C., & Tsai, W. (2019). New Insights into the Symbiotic Relationship between Orchids and Fungi, ''Applied Biosciences and Bioengineering, 9(3), 585. </ref>]]
	Orchid mycorrhizae is an endomycorrhizal association with an extensive intracellular mycelium, occurring in the roots of the members of the Orchidaceae. Orchid mycorrhizae supports host plant with nutrients, especially sugars and water. The transport of carbon compounds from fungus to host plant may be realized through the plasmatic membrane of living pelotons (in trophocytic phase), or by phagocytosis of collapsed fungal endophyte (in phagocytic phase). <ref> Orchid mycorrhiza, https://www.ibot.cas.cz/mykosym/en_orch.html </ref> The infection of an orchid seed by fungi occurs after the embryo takes up water and swells, rupturing the seed coat. The embryo emerges and produces a few root hairs, which hyphae rapidly colonise. As hyphae penetrate a cell of the embryo, the plasma membrane of the orchid cell invaginates, and the hypha becomes surrounded by a thin layer of cytoplasm. An orchid embryo consists of only a few hundred cells and the fungi spread quickly from cell to cell. <ref> Moored, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/orchid.htm </ref>		Orchid mycorrhizae is an endomycorrhizal association with an extensive intracellular mycelium, occurring in the roots of the members of the Orchidaceae. Orchid mycorrhizae supports host plant with nutrients, especially sugars and water. The transport of carbon compounds from fungus to host plant may be realized through the plasmatic membrane of living pelotons (in trophocytic phase), or by phagocytosis of collapsed fungal endophyte (in phagocytic phase). <ref> Orchid mycorrhiza, https://www.ibot.cas.cz/mykosym/en_orch.html </ref> The infection of an orchid seed by fungi occurs after the embryo takes up water and swells, rupturing the seed coat. The embryo emerges and produces a few root hairs, which hyphae rapidly colonise. As hyphae penetrate a cell of the embryo, the plasma membrane of the orchid cell invaginates, and the hypha becomes surrounded by a thin layer of cytoplasm. An orchid embryo consists of only a few hundred cells and the fungi spread quickly from cell to cell. <ref> Moored, D. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/orchid.htm </ref>

	==References==		==References==
	{{reflist}}		{{reflist}}

Hzhang45: /* Ectomycorrhizae */

2022-05-07T21:08:21Z

Ectomycorrhizae

← Older revision		Revision as of 17:08, 7 May 2022
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	[[File:Ectomycorrhizal_roots.png\|thumb\| Ectomycorrhizal roots. Small parts of the root systems various forest tree species to illustrate the morphological diversity of ectomycorrhizal roots. <br />'''A''': with the basidiomycetous truffle ''Hysterangium''; <br />'''B''': mycorrhizal fungus ''Rhizopogon vinicolor''; <br />'''C''': mycorrhizal fungus Poria terrestris; <br />'''D''': mycorrhizal fungus ''Lactarius sanguifluus''; <br />'''E''': Sitka spruce; <br />'''F''': Monterey pine. <ref> MMoore, D., Ectomycorrhizas. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ectomycorrhizas.htm </ref>]]		[[File:Ectomycorrhizal_roots.png\|thumb\| Ectomycorrhizal roots. Small parts of the root systems various forest tree species to illustrate the morphological diversity of ectomycorrhizal roots. <br />'''A''': with the basidiomycetous truffle ''Hysterangium''; <br />'''B''': mycorrhizal fungus ''Rhizopogon vinicolor''; <br />'''C''': mycorrhizal fungus Poria terrestris; <br />'''D''': mycorrhizal fungus ''Lactarius sanguifluus''; <br />'''E''': Sitka spruce; <br />'''F''': Monterey pine. <ref> MMoore, D., Ectomycorrhizas. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ectomycorrhizas.htm </ref>]]
	Ectomycorrhizae (ECM) are characterized by the presence of a fungal mantle that envelops host roots and a Hartig net that surrounds root epidermal or cortical cells. It provides a large surface area for resource exchange. Hormonal interactions between plant and fungus lead to dramatically altered root architecture, such as the suppression of [[root hairs]]. The external component of Ectomycorrhizae associations consists of hyphae with cross walls that partition cellular components. These hyphae sometimes coalesce into rhizomorphs that attach the mycelium to serve in water uptake. <ref> Nancy, C., & Gehring, C. A. (2007). Mycorrhizas: Symbiotic Mediators of [[Rhizosphere]] and Ecosystem Processes. In Z.G.Cardon and J. L. Whitebeck (Eds.). ''The Rhizosphere''. Academic Press. </ref>		Ectomycorrhizae (ECM) are characterized by the presence of a fungal mantle that envelops host roots and a Hartig net that surrounds root epidermal or cortical cells. It provides a large surface area for resource exchange. Hormonal interactions between plant and fungus lead to dramatically altered root architecture, such as the suppression of [[root hairs]]. The external component of Ectomycorrhizae associations consists of hyphae with cross walls that partition cellular components. These hyphae sometimes coalesce into rhizomorphs that attach the mycelium to serve in water uptake. <ref> Nancy, C., & Gehring, C. A. (2007). Mycorrhizas: Symbiotic Mediators of [[Rhizosphere]] and Ecosystem Processes. In Z.G.Cardon and J. L. Whitebeck (Eds.). ''The Rhizosphere''. Academic Press. </ref>


	Ectomycorrhizae associations involve the most diverse category of myocrrhizae: more than 5,000 species of fungi (mainly Basidiomycetes) with a limited number of Ascomycetes and Zygomycetes. <ref> Futai, K., Taniguchi, T., Kataoka, R. (2008). Ectomycorrhizae and Their Importance in Forest Ecosystems. In: Siddiqui, Z.A., Akhtar, M.S., Futai, K. (Eds). ''Mycorrhizae: Sustainable Agriculture and Forestry''. Springer, Dordrecht. </ref> Major groups of plants for ECM include most herbs, grasses and many trees, hornworts, and liverworts. There are approximately 200,000 number of plant species hosing Ectomycorrhize fungi. <ref>van der Heiden, M. G.A., Martin, F.M., Selosse, M., & Sanders, I.R. (2015). Mycorrhizal ecology and evolution: the past, the present, and the future. ''New Phytologist'', 205(4), 1406-1423.</ref> The majority of ECM synthesizing fungi belong to the classes Basidiomycetes and Ascomycetes that form fruiting bodies like mushrooms, puffballs, coral fungi, toadstools, truffles, etc. <ref>Charya, L. S., & Garg, S. (2019). Advances in methods and practices of ectomycorrhizal research. In S. N. Meena and M. M. Nalk (Eds.). ''Advances in Biological Science Research''. Academic Press. </ref> Ectomycorrhizae are more common in the temperate zones of the world comparing to the tropics. In the northern temperate regions, plants such as pine (Pinus), spruce (Picea), fir (Abies), poplar (Populus), willow (Salix), beech (Fagus), birch (Betula) and oak (Quercus) typify the Ectomycorrhizae association. In the southern hemisphere, Eucalyptus and Northofagus (Southern Beech) are important genera. In total, 140 genera in 43 plant families have been identified as forming Ectomycorrhizae. <ref> Moore, D., Ectomycorrhizas. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ectomycorrhizas.htm </ref>		Ectomycorrhizae associations involve the most diverse category of myocrrhizae: more than 5,000 species of fungi (mainly Basidiomycetes) with a limited number of Ascomycetes and Zygomycetes. <ref> Futai, K., Taniguchi, T., Kataoka, R. (2008). Ectomycorrhizae and Their Importance in Forest Ecosystems. In: Siddiqui, Z.A., Akhtar, M.S., Futai, K. (Eds). ''Mycorrhizae: Sustainable Agriculture and Forestry''. Springer, Dordrecht. </ref> Major groups of plants for ECM include most herbs, grasses and many trees, hornworts, and liverworts. There are approximately 200,000 number of plant species hosing Ectomycorrhize fungi. <ref>van der Heiden, M. G.A., Martin, F.M., Selosse, M., & Sanders, I.R. (2015). Mycorrhizal ecology and evolution: the past, the present, and the future. ''New Phytologist'', 205(4), 1406-1423.</ref> The majority of ECM synthesizing fungi belong to the classes Basidiomycetes and Ascomycetes that form fruiting bodies like mushrooms, puffballs, coral fungi, toadstools, truffles, etc. <ref>Charya, L. S., & Garg, S. (2019). Advances in methods and practices of ectomycorrhizal research. In S. N. Meena and M. M. Nalk (Eds.). ''Advances in Biological Science Research''. Academic Press. </ref> Ectomycorrhizae are more common in the temperate zones of the world comparing to the tropics. In the northern temperate regions, plants such as pine (Pinus), spruce (Picea), fir (Abies), poplar (Populus), willow (Salix), beech (Fagus), birch (Betula) and oak (Quercus) typify the Ectomycorrhizae association. In the southern hemisphere, Eucalyptus and Northofagus (Southern Beech) are important genera. In total, 140 genera in 43 plant families have been identified as forming Ectomycorrhizae. <ref> Moore, D., Ectomycorrhizas. http://www.davidmoore.org.uk/assets/mostly_mycology/diane_howarth/ectomycorrhizas.htm </ref>