Naked amoeba - Revision history

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2025-05-01T19:04:10Z

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		#redirect[[amoeba]]

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	~~=='''Definition'''==~~
	A Naked Amoeba is a taxonomic classification of [[soil protozoa]] found in a variety of agricultural, grassland, and forested soils. These are the most voracious of all the soil protozoa and the most dominant in numbers, including a variety of species. Naked Amoeba, as well as other protozoans, exploit tiny microhabitats that are unavailable to other larger [[soil organisms]], such as "Nematodes". Like other soil protozoa, they promote soil decomposition by enhancing bacterial metabolism, consuming excess bacteria, and excreting simple compounds utilized by plants.

	~~=='''Habitat'''==~~
	Naked Amoeba make up a large portion of [[microfauna]] in a variety of soil habitats. The reason for their higher populations in soil is most likely due to the fact that their sliding motion on surfaces enable them to feed on the soil particles, where most of the bacteria grow, and their highly
	~~highly flexible cells are well adapted for grazing activities within the thin water films surrounding the soil particles [4] .~~

	~~Also due to their shape and size, they are easily able to reach very small cavities or pores in the soil aggregates and feed on bacteria that would otherwise be inaccessible to predators [5].~~

	~~=='''Movement & Anatomy'''==~~
	[[File: Protists.png\|280px\|thumb\|left\|Figure 1 [1] - adapted from Figure 4.5 - "Morphology of four types of soil protozoa: (a) flagellate (Bodo); (b) naked amoeba (Naegleria); (c) testacean (Hyalosphenia); (d) ciliate (Oxytricha) [6]."]]
	~~Differing from [[testacean\| Testate Amoeba]], which have a hard shell, Naked Amoeba do not.~~
	Amoeba do not have cell walls, allowing for free movement. They move and feed through the use of [[pseudopods]], which are bulges of cytoplasm formed by the coordinated action of actin microfilaments pushing out the plasma membrane that surrounds the cell.


	~~=='''Dietary Processes'''==~~
	Naked Amoeba are [[phagotrophic]], meaning they engulf the entirety of the organism in order to digest it. Phagocytosis involves the process of the amoeba extending its pseudopods and then creating a vacuole of the food within its cytoplasm, which it then digests using enzymes before releasing the processed material into the surrounding environment.
	~~[[File:Naked_amoeba.jpg\|200px\|thumb\|right\|Figure 2 [2] - a naked amoeba engulfing its prey (phagocytosis)]]~~
	They can consume a variety of food sources, such as bacteria, fungi, algae, and other fine particulate matter in soils. A majority of bacteria consumed in soil is conducted by Naked Amoeba, as they are the most abundant and most efficient at decomposing bacteria. It is common for this variety of soil protozoa to be found in the rhizosphere due to the abundance of bacterial flora surrounding the plant root zones.

	~~=='''Reproduction'''==~~
	~~These organisms reproduce asexually via fission, the splitting of one cell, or via syngamy, which is the fusion of two cells.~~

	~~=='''References'''==~~
	~~{{reflist}}~~
	~~[1] Coleman, D.J., Callaham, M. A., Jr., Crossley, D.A.. November 2017. 'The Fundamentals of Soil Ecology'. Third Edition. Elsevier Academic Press.~~

	~~[2] Singleton, Paul. 2006. 'Dictionary of Microbiology and Molecular Biology'. 3rd Edition. John Wiley & Sons. https://archive.org/details/dictionarymicrob00sing_558~~

	~~[3] Bamforth, S.S. 1980. 'Terrestrial protozoa'. J. Protozool. 27, 33–36. https://doi.org/10.1111/j.1550-7408.1980.tb04227.~~

	~~[4] Clarholm, Marianne . 1981. 'Protozoan Grazing of Bacteria in Soil--lmpact and Importance'. Microbial Ecology.7, p. 343-350.~~

	~~[5] Foster, R.C., Domar, J.F.. 1991. 'Bacteria-grazing amoeba in situ in the rhizosphere'. Biol. Fertil. Soils 11, p.83-87.~~

	~~[6] Louiser, J.D., Bamforth, S.S.. 1990. 'Soil Protozoa'. Soil Biology Guide. Wiley, New York, p. 97-136.~~

Gracecos at 03:11, 9 April 2021

2021-04-09T03:11:04Z

← Older revision		Revision as of 23:11, 8 April 2021
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	=='''Reproduction'''==		=='''Reproduction'''==
	~~Naked Amoeba, as well as other soil protozoa,~~ reproduce asexually via fission or via syngamy, which is the fusion of two cells.		These organisms reproduce asexually via fission, the splitting of one cell, or via syngamy, which is the fusion of two cells.

	=='''References'''==		=='''References'''==

Gracecos at 03:09, 9 April 2021

2021-04-09T03:09:44Z

← Older revision		Revision as of 23:09, 8 April 2021
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	=Definition=		=='''Definition'''==
	A Naked Amoeba is a taxonomic classification of [[soil protozoa]] found in a variety of agricultural, grassland, and forested soils. These are the most voracious of all the soil protozoa and the most dominant in numbers, including a variety of species. Naked Amoeba, as well as other protozoans, exploit tiny microhabitats that are unavailable to other larger [[soil organisms]], such as "Nematodes". Like other soil protozoa, they promote soil decomposition by enhancing bacterial metabolism, consuming excess bacteria, and excreting simple compounds utilized by plants.		A Naked Amoeba is a taxonomic classification of [[soil protozoa]] found in a variety of agricultural, grassland, and forested soils. These are the most voracious of all the soil protozoa and the most dominant in numbers, including a variety of species. Naked Amoeba, as well as other protozoans, exploit tiny microhabitats that are unavailable to other larger [[soil organisms]], such as "Nematodes". Like other soil protozoa, they promote soil decomposition by enhancing bacterial metabolism, consuming excess bacteria, and excreting simple compounds utilized by plants.

	==Habitat==		=='''Habitat'''==
	Naked Amoeba make up a large portion of [[microfauna]] in a variety of soil habitats. The reason for their higher populations in soil is most likely due to the fact that their sliding motion on surfaces enable them to feed on the soil particles, where most of the bacteria grow, and their highly		Naked Amoeba make up a large portion of [[microfauna]] in a variety of soil habitats. The reason for their higher populations in soil is most likely due to the fact that their sliding motion on surfaces enable them to feed on the soil particles, where most of the bacteria grow, and their highly
	highly flexible cells are well adapted for grazing activities within the thin water films surrounding the soil particles [4] .		highly flexible cells are well adapted for grazing activities within the thin water films surrounding the soil particles [4] .
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	Also due to their shape and size, they are easily able to reach very small cavities or pores in the soil aggregates and feed on bacteria that would otherwise be inaccessible to predators [5].		Also due to their shape and size, they are easily able to reach very small cavities or pores in the soil aggregates and feed on bacteria that would otherwise be inaccessible to predators [5].

	==Movement & Anatomy==		=='''Movement & Anatomy'''==
	[[File: Protists.png\|280px\|thumb\|left\|Figure 1 [1] - adapted from Figure 4.5 - "Morphology of four types of soil protozoa: (a) flagellate (Bodo); (b) naked amoeba (Naegleria); (c) testacean (Hyalosphenia); (d) ciliate (Oxytricha) [6]."]]		[[File: Protists.png\|280px\|thumb\|left\|Figure 1 [1] - adapted from Figure 4.5 - "Morphology of four types of soil protozoa: (a) flagellate (Bodo); (b) naked amoeba (Naegleria); (c) testacean (Hyalosphenia); (d) ciliate (Oxytricha) [6]."]]
	Differing from [[testacean\| Testate Amoeba]], which have a hard shell, Naked Amoeba do not.		Differing from [[testacean\| Testate Amoeba]], which have a hard shell, Naked Amoeba do not.
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	==Dietary Processes==		=='''Dietary Processes'''==
	Naked Amoeba are [[phagotrophic]], meaning they engulf the entirety of the organism in order to digest it. Phagocytosis involves the process of the amoeba extending its pseudopods and then creating a vacuole of the food within its cytoplasm, which it then digests using enzymes before releasing the processed material into the surrounding environment.		Naked Amoeba are [[phagotrophic]], meaning they engulf the entirety of the organism in order to digest it. Phagocytosis involves the process of the amoeba extending its pseudopods and then creating a vacuole of the food within its cytoplasm, which it then digests using enzymes before releasing the processed material into the surrounding environment.
	[[File:Naked_amoeba.jpg\|200px\|thumb\|right\|Figure 2 [2] - a naked amoeba engulfing its prey (phagocytosis)]]		[[File:Naked_amoeba.jpg\|200px\|thumb\|right\|Figure 2 [2] - a naked amoeba engulfing its prey (phagocytosis)]]
	They can consume a variety of food sources, such as bacteria, fungi, algae, and other fine particulate matter in soils. A majority of bacteria consumed in soil is conducted by Naked Amoeba, as they are the most abundant and most efficient at decomposing bacteria. It is common for this variety of soil protozoa to be found in the rhizosphere due to the abundance of bacterial flora surrounding the plant root zones.		They can consume a variety of food sources, such as bacteria, fungi, algae, and other fine particulate matter in soils. A majority of bacteria consumed in soil is conducted by Naked Amoeba, as they are the most abundant and most efficient at decomposing bacteria. It is common for this variety of soil protozoa to be found in the rhizosphere due to the abundance of bacterial flora surrounding the plant root zones.

	==Reproduction==		=='''Reproduction'''==
	Naked Amoeba, as well as other soil protozoa, reproduce asexually via fission or via syngamy, which is the fusion of two cells.		Naked Amoeba, as well as other soil protozoa, reproduce asexually via fission or via syngamy, which is the fusion of two cells.

	='''References'''=		=='''References'''==
	{{reflist}}		{{reflist}}
	[1] Coleman, D.J., Callaham, M. A., Jr., Crossley, D.A.. November 2017. 'The Fundamentals of Soil Ecology'. Third Edition. Elsevier Academic Press.		[1] Coleman, D.J., Callaham, M. A., Jr., Crossley, D.A.. November 2017. 'The Fundamentals of Soil Ecology'. Third Edition. Elsevier Academic Press.

Gracecos at 03:08, 9 April 2021

2021-04-09T03:08:03Z

← Older revision		Revision as of 23:08, 8 April 2021
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	=Definition=		=Definition=
	A Naked Amoeba is a taxonomic classification of soil protozoa found in a variety of agricultural, grassland, and forested soils. These are the most voracious of all the soil protozoa and the most dominant in numbers, including a variety of species. Naked Amoeba, as well as other protozoans, exploit tiny microhabitats that are unavailable to other larger organisms, such as "Nematodes". Like other soil protozoa, they promote soil decomposition by enhancing bacterial metabolism, consuming excess bacteria, and excreting simple compounds utilized by plants.		A Naked Amoeba is a taxonomic classification of [[soil protozoa]] found in a variety of agricultural, grassland, and forested soils. These are the most voracious of all the soil protozoa and the most dominant in numbers, including a variety of species. Naked Amoeba, as well as other protozoans, exploit tiny microhabitats that are unavailable to other larger [[soil organisms]], such as "Nematodes". Like other soil protozoa, they promote soil decomposition by enhancing bacterial metabolism, consuming excess bacteria, and excreting simple compounds utilized by plants.

	==Habitat==		==Habitat==
	Naked Amoeba make up ~~the most~~ of ~~all the~~ [[~~protozoa~~]] in soil ~~and other related~~ habitats. The reason for their ~~high~~ populations in soil is most likely due to the fact that their sliding motion on surfaces enable them to feed on the soil particles, where most of the bacteria grow, and their highly		Naked Amoeba make up a large portion of [[microfauna]] in a variety of soil habitats. The reason for their higher populations in soil is most likely due to the fact that their sliding motion on surfaces enable them to feed on the soil particles, where most of the bacteria grow, and their highly
	highly flexible cells are well adapted for grazing activities within the thin water films surrounding the soil particles [4] .		highly flexible cells are well adapted for grazing activities within the thin water films surrounding the soil particles [4] .

Gracecos at 03:03, 9 April 2021

2021-04-09T03:03:42Z

← Older revision		Revision as of 23:03, 8 April 2021
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	==Habitat==		==Habitat==
			Naked Amoeba make up the most of all the [[protozoa]] in soil and other related habitats. The reason for their high populations in soil is most likely due to the fact that their sliding motion on surfaces enable them to feed on the soil particles, where most of the bacteria grow, and their highly
			highly flexible cells are well adapted for grazing activities within the thin water films surrounding the soil particles [4] .

			Also due to their shape and size, they are easily able to reach very small cavities or pores in the soil aggregates and feed on bacteria that would otherwise be inaccessible to predators [5].

	==Movement & Anatomy==		==Movement & Anatomy==
	[[File: Protists.png\|280px\|thumb\|left\|Figure 1 [1] - adapted from Figure 4.5 - "Morphology of four types of soil protozoa: (a) flagellate (Bodo); (b) naked amoeba (Naegleria); (c) testacean (Hyalosphenia); (d) ciliate (Oxytricha) ~~(from Lousier and Bamforth, 1990)~~."]]		[[File: Protists.png\|280px\|thumb\|left\|Figure 1 [1] - adapted from Figure 4.5 - "Morphology of four types of soil protozoa: (a) flagellate (Bodo); (b) naked amoeba (Naegleria); (c) testacean (Hyalosphenia); (d) ciliate (Oxytricha) [6]."]]
	Differing from Testate Amoeba, which have a hard shell, Naked Amoeba do not.		Differing from [[testacean\| Testate Amoeba]], which have a hard shell, Naked Amoeba do not.
	Amoeba do not have cell walls, allowing for free movement. ~~Amoebae~~ move and feed ~~by using~~ pseudopods, which are bulges of cytoplasm formed by the coordinated action of actin microfilaments pushing out the plasma membrane that surrounds the cell.		Amoeba do not have cell walls, allowing for free movement. They move and feed through the use of [[pseudopods]], which are bulges of cytoplasm formed by the coordinated action of actin microfilaments pushing out the plasma membrane that surrounds the cell.


	==Dietary Processes==		==Dietary Processes==
	Naked Amoeba are phagotrophic, meaning they engulf the entirety of the organism in order to digest it. Phagocytosis involves the process of the amoeba extending its pseudopods and then creating a vacuole of the food within its cytoplasm, which it then digests using enzymes before releasing the processed material into the surrounding environment.		Naked Amoeba are [[phagotrophic]], meaning they engulf the entirety of the organism in order to digest it. Phagocytosis involves the process of the amoeba extending its pseudopods and then creating a vacuole of the food within its cytoplasm, which it then digests using enzymes before releasing the processed material into the surrounding environment.
	[[File:Naked_amoeba.jpg\|200px\|thumb\|right\|Figure 2 [2] - a naked amoeba engulfing its prey (phagocytosis)]]		[[File:Naked_amoeba.jpg\|200px\|thumb\|right\|Figure 2 [2] - a naked amoeba engulfing its prey (phagocytosis)]]
	They can consume a variety of food sources, such as bacteria, fungi, algae, and other fine particulate matter in soils. A majority of bacteria consumed in soil is conducted by Naked Amoeba, as they are the most abundant and most efficient at decomposing bacteria. It is common for this variety of soil protozoa to be found in the rhizosphere due to the abundance of bacterial flora surrounding the plant root zones.		They can consume a variety of food sources, such as bacteria, fungi, algae, and other fine particulate matter in soils. A majority of bacteria consumed in soil is conducted by Naked Amoeba, as they are the most abundant and most efficient at decomposing bacteria. It is common for this variety of soil protozoa to be found in the rhizosphere due to the abundance of bacterial flora surrounding the plant root zones.
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	[2] Singleton, Paul. 2006. 'Dictionary of Microbiology and Molecular Biology'. 3rd Edition. John Wiley & Sons. https://archive.org/details/dictionarymicrob00sing_558		[2] Singleton, Paul. 2006. 'Dictionary of Microbiology and Molecular Biology'. 3rd Edition. John Wiley & Sons. https://archive.org/details/dictionarymicrob00sing_558

	[3] Bamforth, S. S. 1980. 'Terrestrial protozoa'. J. Protozool. 27, 33–36. https://doi.org/10.1111/j.1550-7408.1980.tb04227.		[3] Bamforth, S.S. 1980. 'Terrestrial protozoa'. J. Protozool. 27, 33–36. https://doi.org/10.1111/j.1550-7408.1980.tb04227.

			[4] Clarholm, Marianne . 1981. 'Protozoan Grazing of Bacteria in Soil--lmpact and Importance'. Microbial Ecology.7, p. 343-350.

			[5] Foster, R.C., Domar, J.F.. 1991. 'Bacteria-grazing amoeba in situ in the rhizosphere'. Biol. Fertil. Soils 11, p.83-87.

	[4] ~~Clarholm~~, ~~Marianne~~ . ~~1981~~. '~~Protozoan Grazing of Bacteria in~~ Soil~~--lmpact and Importance~~'. ~~Microbial Ecology~~.~~7:343~~-~~350~~		[6] Louiser, J.D., Bamforth, S.S.. 1990. 'Soil Protozoa'. Soil Biology Guide. Wiley, New York, p. 97-136.

Gracecos: /* References */

2021-04-09T02:43:30Z

References

← Older revision		Revision as of 22:43, 8 April 2021
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	='''References'''=		='''References'''=
	{{reflist}}		{{reflist}}
	[1] Coleman, D. J., Callaham, M. A., Jr.; Crossley, D. A.~~, Jr~~. ~~(2018)~~. ~~Fundaments~~ of Soil Ecology (Third ~~ed.)~~. Elsevier.		[1] Coleman, D.J., Callaham, M. A., Jr., Crossley, D.A.. November 2017. 'The Fundamentals of Soil Ecology'. Third Edition. Elsevier Academic Press.
	[2] Singleton, Paul. Dictionary of Microbiology and Molecular Biology, 3rd Edition~~, revised\|url=~~https://archive.org/details/dictionarymicrob00sing_558~~\|url-access=limited\|last=Singleton\|first=Paul\|publisher=John Wiley & Sons\|year=2006\|isbn=978-0-470-03545-0 \|location=Chichester~~, ~~UK\|pages=[~~https://~~archive~~.org/~~details~~/~~dictionarymicrob00sing_558/page/n42 32~~]}}
			[2] Singleton, Paul. 2006. 'Dictionary of Microbiology and Molecular Biology'. 3rd Edition. John Wiley & Sons. https://archive.org/details/dictionarymicrob00sing_558

			[3] Bamforth, S. S. 1980. 'Terrestrial protozoa'. J. Protozool. 27, 33–36. https://doi.org/10.1111/j.1550-7408.1980.tb04227.

			[4] Clarholm, Marianne . 1981. 'Protozoan Grazing of Bacteria in Soil--lmpact and Importance'. Microbial Ecology.7:343-350

Gracecos at 02:32, 9 April 2021

2021-04-09T02:32:04Z

← Older revision		Revision as of 22:32, 8 April 2021
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	Naked Amoeba, as well as other soil protozoa, reproduce asexually via fission or via syngamy, which is the fusion of two cells.		Naked Amoeba, as well as other soil protozoa, reproduce asexually via fission or via syngamy, which is the fusion of two cells.

	==References==		='''References'''=
	{{reflist}}		{{reflist}}
	~~<ref>~~Coleman, D. J., Callaham, M. A., Jr.~~, &amp~~; Crossley, D. A., Jr. (2018). Fundaments of Soil Ecology (Third ed.). Elsevier. ~~<ref\>~~		[1] Coleman, D. J., Callaham, M. A., Jr.; Crossley, D. A., Jr. (2018). Fundaments of Soil Ecology (Third ed.). Elsevier.
	~~<ref>~~		[2] Singleton, Paul. Dictionary of Microbiology and Molecular Biology, 3rd Edition, revised\|url=https://archive.org/details/dictionarymicrob00sing_558\|url-access=limited\|last=Singleton\|first=Paul\|publisher=John Wiley & Sons\|year=2006\|isbn=978-0-470-03545-0 \|location=Chichester, UK\|pages=[https://archive.org/details/dictionarymicrob00sing_558/page/n42 32]}}
	~~{{Cite book\|title=~~Dictionary of Microbiology and Molecular Biology, 3rd Edition, revised\|url=https://archive.org/details/dictionarymicrob00sing_558\|url-access=limited\|last=Singleton\|first=Paul\|publisher=John Wiley & Sons\|year=2006\|isbn=978-0-470-03545-0 \|location=Chichester, UK\|pages=[https://archive.org/details/dictionarymicrob00sing_558/page/n42 32]}}

Gracecos: /* References */

2021-04-09T02:29:19Z

References

← Older revision		Revision as of 22:29, 8 April 2021
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	==References==		==References==
	{{reflist}}		{{reflist}}
	Coleman, D. J., Callaham, M. A., Jr., & Crossley, D. A., Jr. (2018). Fundaments of Soil Ecology (Third ed.). Elsevier.		<ref>Coleman, D. J., Callaham, M. A., Jr., & Crossley, D. A., Jr. (2018). Fundaments of Soil Ecology (Third ed.). Elsevier. <ref\>
	<ref>{{Cite book\|title=Dictionary of Microbiology and Molecular Biology, 3rd Edition, revised\|url=https://archive.org/details/dictionarymicrob00sing_558\|url-access=limited\|last=Singleton\|first=Paul\|publisher=John Wiley & Sons\|year=2006\|isbn=978-0-470-03545-0 \|location=Chichester, UK\|pages=[https://archive.org/details/dictionarymicrob00sing_558/page/n42 32]}}		<ref>
			{{Cite book\|title=Dictionary of Microbiology and Molecular Biology, 3rd Edition, revised\|url=https://archive.org/details/dictionarymicrob00sing_558\|url-access=limited\|last=Singleton\|first=Paul\|publisher=John Wiley & Sons\|year=2006\|isbn=978-0-470-03545-0 \|location=Chichester, UK\|pages=[https://archive.org/details/dictionarymicrob00sing_558/page/n42 32]}}

Gracecos at 00:56, 9 April 2021

2021-04-09T00:56:05Z

← Older revision		Revision as of 20:56, 8 April 2021
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	==References==		==References==
			{{reflist}}
	Coleman, D. J., Callaham, M. A., Jr., & Crossley, D. A., Jr. (2018). Fundaments of Soil Ecology (Third ed.). Elsevier.		Coleman, D. J., Callaham, M. A., Jr., & Crossley, D. A., Jr. (2018). Fundaments of Soil Ecology (Third ed.). Elsevier.
	<ref>{{Cite book\|title=Dictionary of Microbiology and Molecular Biology, 3rd Edition, revised\|url=https://archive.org/details/dictionarymicrob00sing_558\|url-access=limited\|last=Singleton\|first=Paul\|publisher=John Wiley & Sons\|year=2006\|isbn=978-0-470-03545-0 \|location=Chichester, UK\|pages=[https://archive.org/details/dictionarymicrob00sing_558/page/n42 32]}}		<ref>{{Cite book\|title=Dictionary of Microbiology and Molecular Biology, 3rd Edition, revised\|url=https://archive.org/details/dictionarymicrob00sing_558\|url-access=limited\|last=Singleton\|first=Paul\|publisher=John Wiley & Sons\|year=2006\|isbn=978-0-470-03545-0 \|location=Chichester, UK\|pages=[https://archive.org/details/dictionarymicrob00sing_558/page/n42 32]}}