root nodule determinate root nodule 2010-03-20T09:34:55Z ENVO:01000167 ORCID:0000-0002-4366-3088 Determinate nodules are root nodules found on tropical (sub)legumes, such as those of the genera Glycine (soybean), Phaseolus (common bean), Lotus, and Vigna. Determinate nodules lose meristematic activity shortly after initiation, thus growth is due to cell expansion resulting in mature nodules which are spherical in shape. ENVO