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长期以来,人们总认为根瘤菌必须在豆科植物根瘤中才能有固氮作用。七十年代中期,植物细胞体外培养技术的发展,对这一信念提出了挑战。现已明确,固氮酶的遗传
For a long time, people always think rhizobia must be in the legume nodules to have nitrogen fixation. The development of in vitro cultivation techniques for plant cells in the mid-1970s posed a challenge to this belief. Has now been clear, nitrogenase inheritance