Promotion of acetylene reduction by Rhizobium-soybean cell associations in vitro.
Nitrogenase activity, determined by the acetylene reduction assay, in soybean cell suspensions infected with Rhizobium, was stimulated significantly by the addition of succinic acid or glutamine. Acetylene-dependent ethylene values as high as 4.6 mumoles of ethylene/gram dry weight.hour were observed.
Phillips
D A
DA
Depart nent of Life Sciences, Indiana State University, Terre Haute, Indiana 47809.