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Production of gliotoxin on natural substrates by Trichoderma virens
Author(s) -
Anitha R.,
Murugesan K.
Publication year - 2005
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.200410451
Subject(s) - gliotoxin , bran , bagasse , trichoderma , biology , food science , botany , microbiology and biotechnology , horticulture , aspergillus fumigatus , raw material , ecology
Gliotoxin, an epithiodiketopiperazine toxin produced by the ‘Q’ strain of Trichoderma virens is essential for curtailing growth and multiplication of phytopathogens ( Howell et al. 1993, Fravel 1988). Three isolates (Gv, Gv‐A and Gv‐V) of Trichoderma virens were grown on natural substrates such as bengal gram hull, gingelly cake, green gram hull, rice bran, soya meal, sugarcane bagasse, soyameal + tapioca, tapioca powder, tapioca peel and wheat bran). It was evident from this study that maximum gliotoxin (64 mg/l) was produced on tapioca powder by the alien isolate Gv. However sugarcane bagasse significantly enhanced gliotoxin production (36 mg/l) in the native isolate Gv‐A, when compared to other substrates like greengram hull and rice bran. So far, studies on production of gliotoxin on synthetic media has been reported. We report the production of gliotoxin by T. virens on natural substrates “in vitro” for the first time. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)