root nodule


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to root nodule: Rhizobium bacteria

root nodule

n
(Botany) a swelling on the root of a leguminous plant, such as the pea or clover, that contains bacteria of the genus Rhizobium, capable of nitrogen fixation
References in periodicals archive ?
ISLAMABAD -- A study into the significance of the plant microbiomes has found the first direct evidence that nitrogen fixation can occur in the branches of trees with no root nodule required.
1] recorded highest root nodule which was at par with all herbicidal treatments but Quinolphos 25 EC @1.
It was observed that the stem and root nodule isolates from Discolobium belong to the Bradyrhizobium genus.
They study commonalities in the plant symbiotic genes involved in root nodule symbiosis and in arbuscular micorrhiza that are also associated with roots with plant growth promoting rhizobacteria for nutritional (N2 fixation) or defensive (suppression of pathogens) functions.
His results indicated that charcoal application significantly enhanced root nodule formation, plant growth, and yields (shown in Fig.
2]-diffusion barrier exists in the root nodule cortex that surrounds the central zone of infected cells to maintain low [O.
The associations can be highly evolved and complex, involving the development of specific host tissues or organs that directly interact with the bacterial symbionts; examples include the root nodule of leguminous plants (Hirsch, 1992), the rumen of ungulate mammals (Flint, 1997), the light organs of some species of squid and fish (Herring, 1978; Haygood, 1993), the trophosome of vestimentiferans (Jones and Gardiner, 1988), and the bacteriocytes of certain insects (Douglas, 1989).