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词汇 rhizobium
释义

Definition of rhizobium in English:

rhizobium

noun rʌɪˈzəʊbɪəmrīˈzōbēəm
  • A nitrogen-fixing bacterium that is common in the soil, especially in the root nodules of leguminous plants.

    根瘤菌

    Genus Rhizobium; Gram-negative rods

    Example sentencesExamples
    • Closer to the point of attachment to the root, membrane-bound compartments containing rhizobia are released into plant cells where the rhizobia differentiate into bacteroids, the form capable of fixing N 2.
    • Legume roots are known to exude various flavonoid and isoflavonoid molecules that induce expression of nod genes by bacteria in rhizobia.
    • In an exciting paper, Fox describes how estrogen signals between plants and their symbiotic rhizobium soil bacteria can be disrupted by agricultural chemicals.
    • Since these two cover crops are legumes, they form a symbiosis with specialized soil bacteria called rhizobia.
    • Inoculant contains millions of these rhizobia bacteria and often comes in the form of a powder.

Origin

1920s: modern Latin, from rhizo- 'root' + Greek bios 'life'.

Definition of rhizobium in US English:

rhizobium

nounrīˈzōbēəm
  • A nitrogen-fixing bacterium that is common in the soil, especially in the root nodules of leguminous plants.

    根瘤菌

    Genus Rhizobium; Gram-negative rods

    Example sentencesExamples
    • Closer to the point of attachment to the root, membrane-bound compartments containing rhizobia are released into plant cells where the rhizobia differentiate into bacteroids, the form capable of fixing N 2.
    • In an exciting paper, Fox describes how estrogen signals between plants and their symbiotic rhizobium soil bacteria can be disrupted by agricultural chemicals.
    • Legume roots are known to exude various flavonoid and isoflavonoid molecules that induce expression of nod genes by bacteria in rhizobia.
    • Since these two cover crops are legumes, they form a symbiosis with specialized soil bacteria called rhizobia.
    • Inoculant contains millions of these rhizobia bacteria and often comes in the form of a powder.

Origin

1920s: modern Latin, from rhizo- ‘root’ + Greek bios ‘life’.

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