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Effect of preceding crop on Fusarium species and mycotoxin contamination of wheat grains
Author(s) -
Qiu Jianbo,
Dong Fei,
Yu Mingzheng,
Xu Jianhong,
Shi Jianrong
Publication year - 2016
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.7670
Subject(s) - zearalenone , fusarium , mycotoxin , crop rotation , rotation system , agronomy , biology , crop , contamination , gibberella , poaceae , wheat grain , grain quality , vomitoxin , horticulture , chemistry , food science , ecology , organic chemistry , nitrogen
BACKGROUND The Fusarium graminearum species complex infects several cereals and causes the reduction of grain yield and quality. Many factors influence the extent of Fusarium infection and mycotoxin levels. Such factors include crop rotation. In the present study, we explored the effect of rice or maize as former crops on mycotoxin accumulation in wheat grains. RESULTS More than 97% of samples were contaminated with deoxynivalenol ( DON ). DON concentrations in wheat grains from rice and maize rotation fields were 884.37 and 235.78 µg kg −1 . Zearalenone ( ZEN ) was detected in 45% of samples which were mainly collected from maize–wheat rotation systems. Fusarium strains were isolated and more F. graminearum sensu stricto (s. str.) isolates were cultured from wheat samples obtained from maize rotation fields. DON levels produced by Fusarium isolates from rice rotation fields were higher than those of samples from maize rotation fields. CONCLUSIONS Rice–wheat rotation favours DON accumulation, while more ZEN contamination may occur in maize–wheat rotation models. Appropriate crop rotation may help to reduce toxin levels in wheat grains. © 2016 Society of Chemical Industry