title: Time course of acetylene reduction in nodules of five actinorhizal genera.
abstract: The rate of acetylene reduction was measured as a function of time after addition of 10% acetylene in Alnus, Casuarina, Ceanothus, Datisca, and Myrica. The maximum rate occurred after 45 to 60 seconds and was maintained for an additional 0.5 to 4 minutes before a decline in rate to 30 to 90% of the maximum. The rate then recovered to a value of 63 to 98% of the maximum. Removal of the shoot and lower roots did not affect nodule activity.
authors: Department of Botany and Plant Pathology, University of Maine, Orono, Maine 04469.
authors: J D
authors: JD
authors: Tjepkema
authors: C R
authors: CR
authors: Schwintzer
authors: C A
authors: CA
authors: Monz