Isolation and Partial Characterization of Phytotoxic Mycotoxins Produced by Sclerotinia sp., a Potential Bioherbicide for the Control of White Clover(Trifoliorum repens)

Hong, Yeon Kyu; Lee, Bong Choon; Jung, Won Kwon; Bae, Soon Do; Park, Sung Tae; Uhm, Jae Youl

doi:2004.20.1.52

Plant Pathol J > Volume 20(1); 2004 > Article

The Plant Pathology Journal 2004;20(1):52-57.
DOI: https://doi.org/10.5423/PPJ.2004.20.1.052 Published online March 31, 2004.

Isolation and Partial Characterization of Phytotoxic Mycotoxins Produced by Sclerotinia sp., a Potential Bioherbicide for the Control of White Clover(Trifoliorum repens)

Yeon Kyu Hong, Bong Choon Lee, Won Kwon Jung, Soon Do Bae, Sung Tae Park, Jae Youl Uhm

Abstract

Sclerotinia sp. (isolate BWC98-105) causes stem blight and root rot in Leghum sp., and is presently being evaluated as a potential mycoherbicide for the control of Trifoliorium repens. Bioassays have shown that Sclerotinia sp. produces phytotoxic substance which is biologically active against T. repens. Two biologically active compounds, designated as compounds I and II, were produced in vitro from the culture filtrate of BWC98-105 isolate Sclerotium sp. Compounds I and II were purified by means of liquid-liquid extraction and C18 open column chromatography (300

Key Words: Trifoliorum repens, mycoherbicide, phytotoxic mycotoxin, Sclerotinia sp. BW98-105