symbiotic nitrogen-fixing bacteria

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• nitrogen-fixing bacteria — ▪ biology and ecology       microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen, inorganic compounds usable by plants. More than 90 percent of all nitrogen fixation is effected by them.       Two kinds of nitrogen… …   Universalium

• nitrogen fixation — 1. any process of combining atmospheric nitrogen with other elements, either by chemical means or by bacterial action: used chiefly in the preparation of fertilizers, industrial products, etc. 2. this process as performed by certain bacteria… …   Universalium

• Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P …   Wikipedia

• Nitrogen cycle — Schematic representation of the flow of nitrogen through the environment. The importance of bacteria in the cycle is immediately recognized as being a key element in the cycle, providing different forms of nitrogen compounds assimilable by higher …   Wikipedia

• bacteria — bacterial, adj. bacterially, adv. /bak tear ee euh/, n.pl., sing. bacterium / tear ee euhm/. ubiquitous one celled organisms, spherical, spiral, or rod shaped and appearing singly or in chains, comprising the Schizomycota, a phylum of the kingdom …   Universalium

• Nitrogen fixation — is the natural process, either biological or abiotic, by which nitrogen (N2) in the atmosphere is converted into ammonia (NH3).[1] This process is essential for life because fixed nitrogen is required to biosynthesize the basic building blocks of …   Wikipedia

• endosymbiotic bacteria — Bacteria that establish a symbiotic relationship within a eukaryotic cell. Eg. the nitrogen fixing bacteria of legume root nodules. See also endosymbiont hypothesis …   Dictionary of molecular biology

• List of symbiotic relationships — This is an incomplete list of notable mutualistic symbiotic relationships, in which different species have a cooperative or mutually dependent relationship.* Humans and cultivated plants * Humans and domesticated animals * Humans and intestinal… …   Wikipedia

• Nitrogen nutrition in the arbuscular mycorrhizal system — Contents 1 Role of nitrogen 1.1 Mechanism of action 1.2 Community and ecology 1.3 Alternate theories …   Wikipedia

• Bacteria — Taxobox color = lightgrey name = Bacteria fossil range = Archean or earlier Recent image width = 210px image caption = Escherichia coli image is 8 micrometres wide. domain = Bacteria subdivision ranks = Phyla [cite web… …   Wikipedia

• Root nodule — Cross section though a soybean (Glycine max Essex ) root nodule. The bacterium, Bradyrhizobium japonicum, colonizes the roots and establishes a nitrogen fixing symbiosis. This high magnification image shows part of a cell with single bacteroids… …   Wikipedia