Example sentences for: rhizobia

How can you use “rhizobia” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • Of the six newly identified HGT candidates, four have highest similarity to genes in the nitrogen-fixing soil bacteria that nodulate plant roots and which are collectively termed rhizobia.

  • Interestingly, models of bacterial evolution suggest HGT as a mechanism of adaptation into either symbiosis or parasitism [ 32 ] . This is specifically thought to be the case for divergent species of rhizobia, such as the symbiont Sinorhizobium meliloti and the pathogen Rhizobium radiobacter (formerly known as Agrobacterium tumefaciens ), where differential selection and gene maintenance is likely to be responsible for different lifestyle strategies [ 33 ] .

  • First, root-knot nematodes and rhizobia occupy similar niches in the soil and in roots, and thus the opportunity for HGT may be omnipresent.

  • Experimental evidence [ 39 ] shows that lack of either nodABC or nodD in rhizobia results in a Nod -phenotype (that is, a strain unable to initiate nodule formation on the host plant).

  • However, four of these genes do map to the same M. loti linear chromosome (Figure 4), including nodL and the glutamine synthetase gene, both of which are involved in nodulation/nitrogen fixation in rhizobia.


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