Hairy root formation in peanut by the wild type strains of Agrobacterium rhizogenes.

Abstract

Wild type strains of Agrobacterium rhizogenes were isolated from hairy root of melon plants grown in greenhouses located at Chiba prefecture. Two isolates, A 5 and A 13, induced roots from the leaf segments of peanut in vitro. The roots grew vigorously and showed extensive lateral branching on a hormone-free medium. Mikimopine was detected in the extract of these hairy roots.