自生植物
zì shēnɡ zhí wù
- 名wild plant
自生植物-
自生固氮菌是植物根际促生细菌（PGPR）的重要组成成分，并且可以将大气中的N2通过生物固氮作用供给植物生长，提高植物对氮素的利用。
Free-living nitrogen fixation bacteria are important plant growth-promoting rhizobacteria ( PGPR ), and they can supply plants with N by bio-nitrogen fixation .
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苜蓿根瘤菌在与宿主植物建立共生关系的过程中，以自生状态进入宿主植物细胞，经过分化发育转变为共生状态的类菌体（Bacteroid）。
During the establishment process of symbiotic relation of alfalfa rhizobium with host plant , alfalfa rhizobium ( Sinorhizobium melitoti ) entered into host plant cell as self-growing state , and then transferred into bacteroid of symbiotic state through its differentiation development .