Entry from US English dictionary
Definition of bacteroid in English:
Of the nature of or resembling a bacterium.
- At that time, nodule plant fraction and bacteroid soluble protein contents did not show any significant effect by ABA, whilst the latter only declined by day 9.
- Cytosolic PEP carboxylase in nodules catalyses the conversion of PEP and HCO - 3 (in equilibrium with CO 2) into oxaloacetate, which is used for the bacteroid respiration during nitrogen fixation.
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A bacteroid organism or structure, especially a modified cell formed by a symbiotic bacterium in a root nodule of a leguminous plant.
- Ammonia is exported from the bacteroids into the plant cell cytosol where it is assimilated, and directed to the synthesis of amino acids and/or ureides for subsequent export from the nodule.
- One mechanism that may increase benefits to relatives is found in strains whose bacteroids convert plant metabolites to rhizopines-compounds that cannot be re-assimilated by the plant nor used by unrelated soil bacteria.
- Nodule cortex cells that contain ineffective bacteroids might undergo programmed cell death, although we are unaware of any evidence suggesting that such mechanisms exist.
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