Mycotoxin production by some IndianAlternaria species.

A total of seven species ofAlternaria: A. alternata (Fr.) Keissler;A. capsici-annui Savul & Sandu;A. citri Ellis & Pierce;A. porri (Ellis) Clfferi;A. radicina Meler, Drechsler & Eddy;A. tenuissima (Kunze: Pers) Wiltshire andA. tomato (Cooke) Jones were screened on rice culture medium for their ability to elaborate five majorAlternaria mycotoxins viz. tenuazonlc acid (TA), alternariol (AOH), alternariol methyl ether (AME), altenuene (ALT) and altertoxin-l (ATX-I). All the species produced mycotoxins in varying concentrations. A.capsici-annul was recorded as the mycotoxin producer for the first time. ALT byA. citri andA. tomato; ALT, and ATX-I byA. tenuissima; ALT, TA and AME byA. porri and TA byA. radicina are the new additions to the list of mycotoxins produced by the respective species ofAlternaria.