Infection and invasion of roots by symbiotic, nitrogen-fixing rhizobia during nodulation of temperate legumes

Article Abstract:

Bacteria belonging to the genera Rhizobium, Mesorhizobium, Sinorhizobium, Bradyrhizobium and Azorhizobium grow in the soil as free-living organisms, but can also live as nitrogen-fixing symbionts inside root nodule cells of legume plants. The symbiotic infection and invasion during the formation of indeterminate nodules is focused.

Genetic aspects, Nitrogen-fixing microorganisms

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Quorum sensing in nitrogen-fixing rhizobia

Article Abstract:

The study focuses on the recent stream of information regarding quorum sensing in the nitrogen-fixing rhizobia. The seminal work on the quorum-sensing systems of R. leguminosarum bv. viciae, R. etli, Rhizobium sp. strain NGR234, Sinorhizobium meliloti, and Bradyrhizobium japonicum is presented and discussed.

Bacteria, Aerobic, Aerobic bacteria

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Molecular basis of symbiotic promiscuity

Article Abstract:

Some symbiotic bacteria form relationships with many different plants, requiring several molecular keys to gain entrance to the root. The nature of these keys in rhizobia is described.

Symbiosis

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