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Cyanobacteria
Cyanobacteria (), also known as Cyanophyta, are a phylum of gram-negative bacteria that obtain energy via photosynthesis. The name ''cyanobacteria'' refers to their color (), which similarly forms the basis of cyanobacteria's common name, blue-green algae, although they are not usually scientifically classified as algae. They appear to have originated in a freshwater or terrestrial environment. Sericytochromatia, the proposed name of the paraphyletic and most basal group, is the ancestor of both the non-photosynthetic group Melainabacteria and the photosynthetic cyanobacteria, also called Oxyphotobacteria. Cyanobacteria use photosynthetic pigments, such as carotenoids, phycobilins, and various forms of chlorophyll, which absorb energy from light. Unlike heterotrophic prokaryotes, cyanobacteria have internal membranes. These are flattened sacs called thylakoids where photosynthesis is performed. Phototrophic eukaryotes such as green plants perform photosynthesis in plasti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyanothecaceae
''Cyanothece'' is a genus of unicellular, diazotrophic, oxygenic photosynthesizing cyanobacteria. Modern organisms and cellular organization In 1976, Jiří Komárek defined the prokaryotic cyanobacteria genus ''Cyanothece'' as distinct from ''Synechococcus'' NAG 1949. Organisms in both genera share characteristics in addition to being oxygenic phototrophs. They are both unicellular, forming aggregates, but not found in mucilaginous colonies. They may have a thin mucilage layer around each cell. Both genera also divide by binary fission along an axis perpendicular to the cell's longitudinal axis. A handful of characteristics distinguish the two genera. While ''Synechococcus'' species are usually cylindrical, ''Cyanothece'' species are normally oval and longer than 3 μm., ''Cyanothece’s'' outer cell wall layer is relatively thick and contains spherical, glassy vesicles whose function has yet to be defined. ''Cyanothece’s'' nucleoids are spread loosely throughout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gomontiellaceae
The Gomontiellaceae are a family of cyanobacteria. The genus name of ''Gomontiella'' is in honour of Maurice-Augustin Gomont (1839 - 1909), who was a French phycologist. The genus was circumscribed by Emanoil Constantin Teodoresco Emanoil Constantin Teodorescu (May 10, 1866–1949) was a Romania Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, and Southeast Europe, Southeastern Europe. It bo ... in Verh. K.K. Zool.-Bot. Ges. Wien vol.52 on page 760 in 1901. References Oscillatoriales Cyanobacteria families {{cyanobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
