| ecological distribution of spirillum lipoferum beijerinck. | a survey in various countries revealed that the n2-fixing spirillum lipoferum beijerinck is a very common root and soil inhabitant in the tropics. more than half of the grass root and soil samples collected in tropical countries (four african countries and brazil) contained abundant s. lipoferum populations, while less than 10% of the samples collected in temperate south brazil, kenya, and the u.s.a. contained the organism. there is a pronounced vegetation effect. panicum maximum seems the most ... | 1976 | 10062 |