Article
Amino-acid cycling drives nitrogen fixation in the legume-Rhizobium symbiosis.
Nature - 17 Apr 2003
Lodwig E M, Hosie A H F, Bourdès A, Findlay K, Allaway D, Karunakaran R, Downie J A, Poole P S
Abstract excerpt
The biological reduction of atmospheric N2 to ammonium (nitrogen fixation) provides about 65% of the biosphere's available nitrogen. Most of this ammonium is contributed by legume-rhizobia symbioses, which are initiated by the infection of legume hosts by bacteria (rhizobia), resulting in formation of root nodules. Within the nodules, rhizobia are found as bacteroids, which perform the nitrogen fixation: to do...
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