Effect of microcystins at different rice growth stages on its yield, quality, and safety

被引:0
作者
Chanjuan Liang
Xudong Ma
Hongyue Liu
机构
[1] Jiangnan University,State Key Laboratory of Food Science and Technology
[2] Jiangnan University,Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering
[3] Jiangnan University,Jiangsu Cooperative Innovation Center of Technology and Material of Water Treatment
来源
Environmental Science and Pollution Research | 2021年 / 28卷
关键词
Microcystins; Irrigation water; Rice growth stage; Nutritional quality; Health risk assessment;
D O I
暂无
中图分类号
学科分类号
摘要
Microcystins (MCs) in water for irrigation may damage crop growth and enter food chains to threaten human health. To evaluate the potential risk of irrigation water contaminated with MCs, we exposed rice at each of the seedling, booting, and filling stages to irrigation water spiked with MCs at 1, 10, 100, and 1000 μg/L for 7 days. Afterwards, all rice underwent a recovery (without MCs) till the harvest. Low MCs (1 or10 μg/L) during different rice growth stages did not affect its yield and nutritional quality and had no risk to human health. High-concentration MCs (100 or 1000 μg/L) during the seedling or booting stage caused a larger decrease in the nutritional quality and yield of rice grains than that during the filling stage. In addition, MCs at 100 μg/L during the booting stage or at 1000 μg/L during the filling stage potentially threatened human health. The effect of MCs on rice yield, quality, and health risk was associated with the MC concentration and rice growth stage. Irrigation water contaminated with moderate-concentration MCs should be of concern at the early growth stage of rice.
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页码:13942 / 13954
页数:12
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