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In low nitrogen environments, heterocyst differentiation is triggered by the transcriptional regulator NtcA. NtcA influences heterocyst differentiation by signaling proteins involved in the process of heterocyst differentiation. For instance, NtcA controls the expression of several genes including HetR which is crucial for heterocyst ...
The numbers 200-900 would be confused easily with 22 to 29 if they were used in chemistry. khīlioi = 1000, diskhīlioi = 2000, triskhīlioi = 3000, etc. 13 to 19 are formed by starting with the Greek word for the number of ones, followed by και (the Greek word for 'and'), followed by δέκα (the Greek word for 'ten').
Nostoc, also known as star jelly, troll's butter, spit of moon, fallen star, witch's butter (not to be confused with the fungi commonly known as witches' butter), and witch's jelly, is the most common genus of cyanobacteria found in a variety of both aquatic and terrestrial environments that may form colonies composed of filaments of moniliform cells in a gelatinous sheath of polysaccharides. [1]
The heterocyst is characterized by a thick glycolipid layer which minimizes oxygen's ability to interfere with nitrogen fixation. [2] This is important to Richelia’s function as oxygen can bind to nitrogenase and inhibit the cyanobacteria's nitrogen fixing abilities. [2] The heterocyst does not divide, while the vegetative cells do. [2]
Intercalary located akinete of Dolichospermum smithii Terminally located akinete of Gloeotrichia Akinetes, also termed "cysts", of Haematococcus. An akinete is an enveloped, thick-walled, non-motile, dormant cell formed by both cyanobacteria and algae.
Pages for logged out editors learn more. Contributions; Talk; Heterocysts
Cyanobacterial cell division and cell growth mutant phenotypes in Synechocystis, Synechococcus, and Anabaena.Stars indicate gene essentiality in the respective organism. While one gene can be essential in one cyanobacterial organism/morphotype, it does not necessarily mean it is essential in all other cyanobacteria.
A prefix meaning "other" or "different". [237] heterocyst A specialized type of cell found in some cyanobacteria; heterocysts are thought to be involved in the fixation of nitrogen by the lichen thallus, as well as in the multiplication of cyanobacteria. [238] heteromerous