Biological Nitrogen Fixation | Learn Science at Scitable - Nature
Biological nitrogen fixation (BNF), discovered by Beijerinck in 1901 (Beijerinck 1901), is carried out by a specialized group of prokaryotes. These organisms utilize the enzyme nitrogenase to...
Biological Nitrogen Fixation - an overview | ScienceDirect Topics
The biological nitrogen fixation, carried out by prokaryotes, leads to the reduction of molecular nitrogen to ammonia, subsequently assimilated in amino acids, and provides Earth’s ecosystems with about 200 million tons N per year. This article describes the overall reaction of nitrogen fixation and the different nitrogen-fixing prokaryotes ...
Genetic regulation of biological nitrogen fixation - Nature
2004年8月1日 · Biological nitrogen fixation — the conversion of atmospheric nitrogen into ammonia by symbiotic, associative and free-living bacteria — is of tremendous importance to the environment and to ...
Biological Nitrogen Fixation - SpringerLink
2014年1月1日 · Biological nitrogen fixation (BNF) is the process of the reduction of dinitrogen from the air to ammonia carried out by a large number of species of free-living and symbiotic microbes called diazotrophs. BNF presents an inexpensive and environmentally sound,...
Biological nitrogen fixation and the role of soil diazotroph niche ...
2024年2月1日 · Biological nitrogen fixation (BNF) driven by diazotrophs is a fundamental process underpinning the primary productivity of terrestrial ecosystems and plays a pivotal role in the global nitrogen cycle. However, the relationships between BNF function and soil diazotroph taxa with different niche breadths remain unclear.
Nitrogen fixation | Definition, Process, Examples, Types, & Facts ...
2024年12月31日 · nitrogen fixation, any natural or industrial process that causes free nitrogen (N 2), which is a relatively inert gas plentiful in air, to combine chemically with other elements to form more-reactive nitrogen compounds such as ammonia, nitrates, or nitrites.
The power supply for biological nitrogen fixation - Nature
2024年7月10日 · Biological reduction of dinitrogen by nitrogenase requires high-energy electrons to form ammonium ion. A new study reveals the structure and function of a molecular machine that exploits the...
Biological Nitrogen Fixation - an overview | ScienceDirect Topics
Biological nitrogen fixation is the process where diazotrophic bacteria convert atmospheric dinitrogen into a useable nitrogenous compound (Vitousek, Menge, Reed, & Cleveland, 2013). These bacteria possess nitrogenase, an enzyme complex that can reduce N 2 into NH 3 (Einsle & Rees, 2020; Winter & Burris, 1976).
Biological nitrogen fixation: rates, patterns and ecological …
New techniques have identified a wide range of organisms with the capacity to carry out biological nitrogen fixation (BNF)—greatly expanding our appreciation of the diversity and ubiquity of N fixers—but our understanding of the rates and controls of BNF at ecosystem and global scales has not advanced at the same pace.
Biological nitrogen fixation in theory, practice, and reality: a ...
2022年11月7日 · In this review, we explore the current understanding of the molybdenum nitrogenase system based on experimental and computational research, as well as the limitations of the crystallographic, spectroscopic, and computational techniques employed.