O'gara F, Shanmugam K T
Plant Growth Laboratory, University of California, Davis, California 95616.
Proc Natl Acad Sci U S A. 1978 May;75(5):2343-7. doi: 10.1073/pnas.75.5.2343.
Mutant strains of Rhizobium trifolii that induce nitrogenase activity in the free-living state were isolated. These strains, unlike the wild type, nodulated soybean and mungbean plants, producing effective nodules. One of the strains, strain DT72, also nodulated clover but the nodules were ineffective. Strain DT125 consumed hydrogen gas from the gas phase, which can be coupled to nitrogenase activity under appropriate conditions.
分离出了在自由生活状态下能诱导固氮酶活性的三叶草根瘤菌突变菌株。与野生型不同,这些菌株能使大豆和绿豆植株结瘤,并形成有效的根瘤。其中一个菌株DT72也能使三叶草结瘤,但这些根瘤是无效的。菌株DT125能消耗气相中的氢气,在适当条件下,这可以与固氮酶活性相偶联。