Details

Autor(en) / Beteiligte

• CHEN Yong ZHENG Wei WANG Li-ming CUI Hai-lan LI Guo-xi LIUXin-gui HAN Cheng-chou ZENG Ren-sen

Titel

Effect of Toxins Isolated from Exserohilum monoceras （Drechsler） Leonard and Suggs on Echinochloa crus-galli （L.） Beauv

Ist Teil von

• Agricultural sciences in China, 2009 (8), p.972-978

Erscheinungsjahr

2009

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Exserohilum monoceras （Drechsler） Leonard and Suggs is a potential biocontrol agent for the control of Echinochloa species. This fungus causes leaf blight in Echinochloa species, but does not damage rice. Phytotoxicity of the fungal fermented broth was evaluated through the bioassay and the active ingredients were preliminarily isolated by using silica gel column chromatography （CC） in this study. The most active fraction 5-Ⅲ was obtained and analyzed by gas chromatography-mass spectrometry （GC-MS）. The results show that 5-Ⅲ consisted of many compounds, in which 36 compounds accounted for 94.24% of total peak area. Di-n-butyl phthalate （DBP） displayed the highest activity accounted for 9.24% of the total peak area, suggesting that DBP may be one of the main active compounds produced by E. monoceras.