Phototrophic prokaryotes
Phototrophic prokaryotes are bacteria or archaea that obtain energy from light. Phototrophic prokaryotes may utilize a variety of carbon sources, depending on the metabolic pathways available to the b...
Phototrophic prokaryotes - Wikipedia
How a single-celled organism almost wiped out life on Earth
There’s an organism that changed the world. It caused the first mass extinction in Earth’s history … and also paved the way for complex life. How?
Cyanobacteria
Cyanobacteria /saɪˌænoʊbækˈtɪəriə/, also known as Cyanophyta, is a phylum of bacteria that obtain their energy through photosynthesis. The name "cyanobacteria" comes from the color of the bacteria (Gr...
Cyanobacteria - Wikipedia
Halobacteria
In taxonomy, the Halobacteria (also Halomebacteria) are a class of the Euryarchaeota, found in water saturated or nearly saturated with salt. Halobacteria are now recognized as archaea, rather than ba...
Halobacteria - Wikipedia
Heliobacteria
The heliobacteria are phototrophic: they convert light energy into chemical energy by photosynthesis and they use a PSI type reaction center. The primary pigment involved is bacteriochlorophyll g, w...
Purple bacteria
Purple bacteria or purple photosynthetic bacteria are proteobacteria that are phototrophic, that is, capable of producing energy through photosynthesis. They are pigmented with bacteriochlorophyll a ...
Herpetosiphon giganteus
Herpetosiphon giganteus is a species of bacteria in the genus Herpetosiphon known to produce 16 restriction enzymes.H. giganteus has been studied for its gliding motility.
Chloroflexi (phylum)
The Chloroflexi or Chlorobacteria are a phylum of bacteria containing isolates with a diversity of phenotypes including members that are aerobic thermophiles, which use oxygen and grow well in high te...
Anabaena circinalis
Anabaena circinalis is a species of Gram-negative, photosynthetic cyanobacteria common to freshwater environments throughout the world. Much of the scientific interest in A. circinalis owes to its p...
Anabaena circinalis - Wikipedia
Cylindrospermopsis raciborskii
Cylindrospermopsis raciborskii is a freshwater cyanobacterium.
This bacterium is an aquatic photosynthetic bacteria belonging to the phylum Cyanobacteria. They are composed of chained filaments kn...
Saxitoxin
Saxitoxin (STX) is the best-known paralytic shellfish toxin (PST), although other related compounds have been reported, such as neosaxitoxin (NSTX), the 11-alpha and 11-beta-O-sulphates of saxitoxin an...
Saxitoxin - Wikipedia
Nostoc punctiforme
Nostoc punctiforme is a species of filamentous cyanobacteria. Under non-limiting nutritional environmental conditions, its filaments are composed of photosynthetic vegetative cells; upon nutrient limi...
Fenna-Matthews-Olson complex
The Fenna-Matthews-Olson (FMO) complex is a water soluble complex and was the first pigment-protein complex (PPC) to be structure analyzed by x-ray spectroscopy. It appears in green sulfur bacteria an...
Fenna-Matthews-Olson complex - Wikipedia
Cyanobacterium UCYN-A
Candidatus Atelocyanobacterium thalassa, previously cyanobacterium UCYN-A, is a species of non-photosynthetic nitrogen-fixing marine cyanobacteria that lacks the oxygen-producing photosystem II comple...
Bacterial phyla
Phylogenetic tree showing the diversity of bacteria, compared to other organisms. Eukaryotes are colored red, archaea green and bacteria blue.The bacterial phyla are the major lineages (phyla or div...
Bacterial phyla - Wikipedia
Nostoc commune var. sphaeroides
Nostoc commune var. sphaeroides is an edible cyanobacterium found in diverse habitats such as lakes and rivers. It is used as a food and nutritional supplement and has reputed pharmaceutical properti...
Arthrospira
Arthrospira is a genus of free-floating filamentous cyanobacteria characterized by cylindrical, multicellular trichomes in an open left-hand helix. There is a dietary supplement made from Arthrospira...
Radaisia
Radaisia is a genus of coccoid cyanobacterium comprising about 10 identified species. It is a colonial cyanobacterium, the bacteria initially forming a round to irregularly shaped flat group of gelati...
Microcystaceae
Microcystaceae is family of cyanobacterial life which contains the harmful algal bloom Microcystis aeruginosa.
The family is characterized by single, floating cells or colonies which are embedded ...
Stigonematales
The Stigonematales are the order of cyanobacteria that includes filamentous strains that produce hormogonia and exhibit true branching. Under the more recent classification system devised by Rippka et...
Herpetosiphonaceae
Herpetosiphonaceae is a family of bacteria in the order Herpetosiphonales.
Phototrophic bacteria
Phototrophic prokaryotes are bacteria or archaea that obtain energy from light. Phototrophic prokaryotes may utilize a variety of carbon sources, depending on the metabolic pathways available to the b...
Microcystis aeruginosa
Microcystis aeruginosa is a species of freshwater cyanobacteria which can form harmful algal blooms of economic and ecological importance. They are the most common toxic cyanobacterial bloom in eutrop...
Microcystis aeruginosa - Wikipedia
Prochloron
Prochloron (from the Greek pro (before) and the Greek chloros (green) ) is a unicellular oxygenic photosynthetic prokaryote commonly found as an extracellular symbiont on coral reefs, particularly in ...
Synechococcus
Synechococcus (from the Greek synechos (in succession) and the Greek kokkos (granule) is a unicellular cyanobacterium that is very widespread in the marine environment. Its size varies from 0.8 µ...
Synechococcus - Wikipedia
Fat choy
Fat choy (Nostoc flagelliforme), also known as faat choy, fa cai, black moss, hair moss or hair weed is a terrestrial cyanobacterium (a type of photosynthetic bacteria) that is used as a vegetable in ...
Fat choy - Wikipedia
Girvanella
Girvanella is thought to represent the calcified sheath of a filamentous cyanobacterium known from the Burgess Shale and other Cambrian fossil deposits.
Scytonemin
Scytonemin is a biological pigment synthesized by many strains of cyanobacteria, including Calothrix sp., Lyngbya aestuarii, and others. It was originally discovered in 1849, although the structure re...
Scytonemin - Wikipedia
Microcystin
Microcystins (also known as cyanoginosins) are a class of toxins produced by certain freshwater cyanobacteria; primarily Microcystis aeruginosa but also other Microcystis, as well as members of the Pl...
Microcystin - Wikipedia
Oscillaria
Oscillaria is a genus of filamentous cyanobacterium.
Morania
Morania is a genus of cyanobacterium preserved as carbonaceous films in the Middle Cambrian Burgess Shale. it is present throughout the shale; 2580 specimens of Morania are known from the Greater Phyl...