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Autoradiogram of a reverse-phase TLC profile of butanol extracts of radioactively labeled Sinorhizobium sp. strain BR816 (A), FAJ1600 (B), and FAJ1604 (C). Lanes 1 and 2, 14C labeling; lanes 3 and 4, 35S labeling. Lanes 1 and 3, noninduced; lanes 2 and 4, apigenin induced. Spots representing sulfated Nod factors are indicated with arrows.
