root nodule


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Related to root nodule: Rhizobium bacteria

root nodule

[′rüt ′näj‚ül]
(plant pathology)
An abnormal nodular growth on a plant root system caused by the establishment of symbiotic nitrogen-fixing bacteria in the host tissue.
References in periodicals archive ?
Then the plants carefully uprooted and the root nodules were surface sterilized by immersion 4 min in a sodium hypochlorite solution (2%) and washed six times with sterile distilled water.
A Genomic Encyclopedia of the Root Nodule Bacteria: assessing genetic diversity through a systematic biogeographic survey.
Hong, "Biogenesis of the peribacteroid membrane in root nodules," Trends in Microbiology, vol.
Pulse and grain legumes are grown in the agricultural land in a rotation so as to fix atmospheric nitrogen into the soil because they form nitrogen fixing symbiosomes with soil inhabiting root nodule bacteria [44].
Chemical fertiliser was then broadcast and root nodule bacteria were inoculated.
Varietal differences in [N.sub.2]-fixation ability of root nodules under chilling treatment could also be explained by the anti-oxidative activity of the flavonoids with 3', 4'-dihydroxy configuration.
Whereas bacterial bioluminescence - the principal contribution of the microbial symbiont - is induced in the squid organ within 8 to 10 hours after inoculation (McFall-Ngai and Ruby, 1991), nitrogen fixation by rhizobia does not occur at maximal levels in the root nodule for days to weeks.
Lectin genes are expressed throughout root nodule development and during nitrogen-fixation in the Rhizobium-Medicago symbiosis.
bracteata and its associated root nodule bacteria (Bradyrhizobium sp.).
The current study used the annual legume Amphicarpaea bracteata and its associated root nodule bacteria (genus Bradyrhizobium) to investigate this issue.