Examination of non-phytotoxic extracts associated with the in vitro pr
oduction of thaxtomin A by various Streptomyces scabies isolates consi
stently yielded a nitroaromatic compound that was characterized by spe
ctral and synthetic means as 5-nitroanthranilic acid (2-amino-5-nitrob
enzoic acid).:Investigations examining its possible role in the biosyn
thesis of thaxtomin A were inconclusive. (C) 1998 Elsevier Science Ltd
. All rights reserved.