''Prochlorothrix hollandica'' is a species of

cyanobacteria Cyanobacteria ( ) are a group of autotrophic gram-negative bacteria that can obtain biological energy via oxygenic photosynthesis. The name "cyanobacteria" () refers to their bluish green (cyan) color, which forms the basis of cyanobacteri ...

named under the ''

Bacteriological Code The International Code of Nomenclature of Prokaryotes (ICNP) or Prokaryotic Code, formerly the International Code of Nomenclature of Bacteria (ICNB) or Bacteriological Code (BC), governs the scientific names for Bacteria and Archaea.P. H. A. Sneath ...

'' in 1989. It is the only species in genus ''Prochlorothrix'', which is the only species in family Prochlorotrichaceae, which is the only family in order Prochlorotrichales. The lineage produces

chlorophyll b } Chlorophyll ''b'' is a form of chlorophyll. Chlorophyll ''b'' helps in photosynthesis by absorbing light energy. It is more soluble than chlorophyll ''a'' in polar solvents because of its carbonyl group. Its color is green, and it primarily ...

. It is found in temperate and subpolar zones, in freshwater and brackish water. The lineage is sister to

Synechococcales The Synechococcales are a proposed order of cyanobacteria, with over 70 genera. It includes both filamentous and single-celled types. References

Synechococcales, Bacteria orders {{cyanobacteria-stub ...

. Three full genomes have been sequenced for the type species. Three more genomes representing intrageneric-level divergence are known from

metagenomics Metagenomics is the study of all genetics, genetic material from all organisms in a particular environment, providing insights into their composition, diversity, and functional potential. Metagenomics has allowed researchers to profile the mic ...

References

Cyanobacteria Cyanobacteria genera {{cyanobacteria-stub