Cyanobacteria - Wikipedia
The relationships between cyanobionts (cyanobacterial symbionts) and protistan hosts are particularly noteworthy, as some nitrogen-fixing cyanobacteria (diazotrophs) play an important role in primary production, especially in nitrogen-limited oligotrophic oceans.
Cyanobacteria’s power trio: auxin, siderophores, and nitrogen fixation ...
2024年11月13日 · The synergistic effects of nitrogen fixation with siderophore production and auxin biosynthesis by cyanobacteria create a more holistic approach to enhancing plant growth and soil health in agricultural systems.
Nitrogen Fixation and Hydrogen Metabolism in Cyanobacteria
This review summarizes recent aspects of (di)nitrogen fixation and (di)hydrogen metabolism, with emphasis on cyanobacteria. These organisms possess several types of the enzyme complexes catalyzing N 2 fixation and/or H 2 formation or oxidation, namely, two Mo nitrogenases, a V nitrogenase, and two hydrogenases.
Biological Nitrogen Fixation | Learn Science at Scitable - Nature
There the cyanobacteria fix significant amounts of nitrogen in specialized cells called heterocysts. This symbiosis has been used for at least 1000 years as a biofertilizer in wetland paddies in...
The evolution of nitrogen fixation in cyanobacteria - Oxford …
2012年1月11日 · Some cyanobacteria can fix nitrogen, contributing significantly to the nitrogen cycle, agriculture and biogeochemical history of Earth. The rate and position on the species phylogeny of gains and losses of this ability, as well as of …
Cyanobacteria possess unique mechanisms for the protection of nitrogenase, the nitrogen-fixing enzyme, against O 2 and for nitrogen control of the expression of the N 2-fixing machinery and form symbioses with widely different organisms, and so have an impor-tant role in modern N 2 fixation research.
Harnessing Cyanobacteria: Nitrogen Fixation and Its Impact
2024年9月27日 · A distinguishing characteristic of cyanobacteria is their capacity to fix atmospheric nitrogen, converting it into a form usable by plants and other organisms. This nitrogen-fixing ability is critical for soil fertility enhancement and essential for plant growth.
N2 Fixation by non-heterocystous cyanobacteria - Oxford …
1997年2月1日 · Currently 17 genera containing over 70 strains of non-heterocystous cyanobacteria are known to be capable of N 2 fixation. Of these, most can fix N 2 only when incubated under micro-oxic or anoxic conditions. However, a few strains can fix N 2 aerobically.
Nitrogen Metabolism in Cyanobacteria | SpringerLink
2022年1月30日 · Diazotrophic cyanobacteria species contribute considerable quantity of combined nitrogen into the biosphere by changing dinitrogen into ammonia, a procedure known as biological nitrogen fixation (Muro-Pastor and Hess 2020).
Nitrogen Fixing Cyanobacteria: Future Prospect - IntechOpen
2014年1月29日 · The rate of CO 2 fixation is greatly reduced, whereas nitrogen fixation is stimulated and ammonium assimilation down-regulated (Figure 5). The nitrogen fixation rates for cyanobacteria symbiotically associated with bryophytes are several-fold higher than for the same free-living cyanobacteria.