Stem Nodules in Aeschynomene indica and Their Capacity of Nitrogen Fixation



There has been no report on stem nodules with nitrogen fixing activity. Aeschynomene indica produce nodules on the aerial parts, and the stem nodules proved to be capable of considerable nitrogen fixation [C2H4 produced c. 4 μmol (g fresh weight)-1 h-1]. The stem nodules embed reddish tissues, and a rod-shaped bacterium was isolated from the tissues. The bacterium was ascertained to form root and stem nodules on seedlings of A. indica.