Phospholipid-derived fatty acids microbial classes when in fact those PLFAs are present in a broad range of life forms. Phospholipids can occur in many biological classes (such as in plant roots, fungi, as well as in soil bacteria), so care has to be taken in over-assigning PLFA biomarkers to the wrong class. Even though phospholipids occur in many different life forms, the fatty acid side chains between differing life forms can be quite unique. Polyunsaturated fatty acids ("e.g." 18:3 ω3c) are found in plants, algae and cyanobacteria, but are often not present in bacteria. Monounsaturated fatty acids (particularly at the omega-7 position), odd-chain
Clavarioid fungi Clavarioid fungi The clavarioid fungi are a group of fungi in the "Basidiomycota" typically having erect, simple or branched basidiocarps (fruit bodies) that are formed on the ground, on decaying vegetation, or on dead wood. They are colloquially called club fungi and coral fungi. Originally such fungi were referred to the genus "Clavaria" ("clavarioid" means "Clavaria"-like), but it is now known that clavarioid species are not all closely related. Since they are often studied as a group, it is convenient to retain the informal (non-taxonomic) name of "clavarioid fungi" and this term is frequently used in research papers. "Clavaria" was