Purple sulfur bacteria Purple sulfur bacteria The purple sulfur bacteria (PSB) are part of a group of Proteobacteria capable of photosynthesis, collectively referred to as purple bacteria. They are anaerobic or microaerophilic, and are often found in stratified water environments including hot springs, stagnant water bodies, as well as microbial mats in intertidal zones. Unlike plants, algae, and cyanobacteria, purple sulfur bacteria do not use water as their reducing agent, and therefore do not produce oxygen. Instead, they can use sulfur in the form of sulfide, or thiosulfate (as well, some species can use H, Fe, or NO) as the electron donor in
International Code of Nomenclature for algae, fungi, and plants International Botanical Congress have produced revised versions of these "Rules", later called the "International Code of Botanical Nomenclature", and then "International Code of Nomenclature for algae, fungi, and plants". The Nomenclature Section of the 18th International Botanical Congress in Melbourne, Australia (2011) made major changes: Some important versions are listed below. Specific to botany More general International Code of Nomenclature for algae, fungi, and plants The International Code of Nomenclature for algae, fungi, and plants (ICN) is the set of rules and recommendations dealing with the formal botanical names that are given to plants, fungi and a few other groups