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| 1. |
Who are free-living legumes.? |
| Answer» Nitrogen fixation\xa0occurs in the root nodules that contain bacteria ( Bradyrhizobium for soybean, Rhizobium for\xa0most\xa0other\xa0legumes). Almost\xa0all legumes\xa0can\xa0fix nitrogen. The\xa0legume\xa0family (Leguminosae or Fabaceae) includes many important crop species such as pea, alfalfa, clover, common bean, peanut, and lentil.\xa0rankia\xa0is a genus of soil actinomycetes in the family Frankiaceae that fix nitrogen, both under symbiotic and\xa0free-living\xa0aerobic conditions, while most rhizobia do not (Benson and Silvester, 1993).\xa0 | |