Richelia is a genus of nitrogen-fixing, filamentous, heterocystous and cyanobacteria. It contains the single species Richelia intracellularis. They exist as both free-living organisms as well as symbionts within potentially up to 13 diatoms distributed throughout the global ocean. As a symbiont, Richelia can associate epiphytically and as endosymbionts within the periplasmic space between the cell membrane and cell wall of diatoms.
Richelia is a genus of nitrogen-fixing, filamentous, heterocystous and cyanobacteria. It contains the single species Richelia intracellularis. They exist...
and the cyanobacterium Richelia intracellularis has been reported in North Atlantic, Mediterranean, and Pacific waters. Richelia is found within the diatom...
aggregates. However, filamentous heterocyst-forming cyanobacteria (e.g., Richelia, Calothrix) are found in association with diatoms such as Hemiaulus, Rhizosolenia...
in Copenhagen. Botanist Ernst Johannes Schmidt in 1901, circumscribed Richelia, which is a genus of nitrogen-fixing, filamentous, heterocystous and cyanobacteria...
needed]. The assumption that N2 fixation only occurred via Trichodesmium and Richelia led to the conclusion that in the oceans, nitrogen output exceeded the...
cyanobionts involved with fungi and marine organisms also belong to the genera Richelia, Calothrix, Synechocystis, Aphanocapsa and Anabaena, as well as the species...
bacteria include diazotrophs and several cyanobacteria species such as Richelia. Trichodesmium and the epibiont bacteria within the holobiont colonies...
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