Visiting Scientist, present address: Sumitomo Chemical Co., Ltd., Biotechnology Laboratory, Takarazuka Research Center, 4-2-1 Takatsukasa, Takarazuka, Hyogo 665, Japan.
Received for publication 25 Jan. 1988. Salaries and research support were provided by Sumitomo Chemical Co., Ltd. and by State and Federal funds appropriated to OSU-OARDC. OARDC Journal Article no. 18-88. We wish to thank Barbara Norris and Martha Fockler for their technical assistance. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.