Talk:Diazotrophs

Peer Review: Well done. Grammatically sound. Only suggestion could be to add a portion that gives examples of important Diazotrophs and perhaps a picture or two so that readers can actually see what these organisms look like. Also: "They do this by using the nodulation factor, or nod factor - a signal of amino acids that alert the plant." alerts the plants of what? be a little more specific before moving on.