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词汇 bacteroid
释义

Definition of bacteroid in US English:

bacteroid

adjective ˈbaktəˌroidˈbaktəˌroid
  • Of the nature of or resembling a bacterium.

    Example sentencesExamples
    • 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.
noun ˈbaktəˌroidˈbaktəˌroid
  • A bacteroid organism or structure, especially a modified cell formed by a symbiotic bacterium in a root nodule of a leguminous plant.

    Example sentencesExamples
    • Nodule cortex cells that contain ineffective bacteroids might undergo programmed cell death, although we are unaware of any evidence suggesting that such mechanisms exist.
    • Nodulated plants utilize both combined nitrogen absorbed by the roots and nitrogen fixed by the bacteroids in the root nodules.
    • These have to pass several cell layers to reach cells infected with Rhizobium bacteroids.
    • 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.
    • 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.
    • The soluble protein content determined after pelleting of bacteroids and cell debris of these nodules had dropped to nearly 25% of the soluble protein content of nodules from flowering, non-senescent plants.

Definition of bacteroid in US English:

bacteroid

adjectiveˈbaktəˌroid
  • Of the nature of or resembling a bacterium.

    Example sentencesExamples
    • 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.
nounˈbaktəˌroid
  • A bacteroid organism or structure, especially a modified cell formed by a symbiotic bacterium in a root nodule of a leguminous plant.

    Example sentencesExamples
    • The soluble protein content determined after pelleting of bacteroids and cell debris of these nodules had dropped to nearly 25% of the soluble protein content of nodules from flowering, non-senescent plants.
    • 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.
    • 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.
    • These have to pass several cell layers to reach cells infected with Rhizobium bacteroids.
    • Nodulated plants utilize both combined nitrogen absorbed by the roots and nitrogen fixed by the bacteroids in the root nodules.
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