no activity in Streptomyces hygroscopicus - 643768, 643773 Oryza sativa - 723443 Oryza sativa Japonica Group - 760991 Streptomyces hygroscopicus - 643771, 643772 Streptomyces hygroscopicus ATCC 21705 643773 Streptomyces hygroscopicus HP782 and mutant NP71 643768 Streptomyces hygroscopicus HP782, HP5-29 and SF1293 mutant NP71 643769 Streptomyces hygroscopicus SF1293 643768, 643769, 643770 Streptomyces hygroscopicus SF1293 SF1293 643768, 643769, 643770