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- W3150742810 abstract "The effect of different concentrations( 1,100,1 000 and 3 000 μg·L- 1) of microcystins( MCs) on growth,absorb activity,antioxidant system and its accumulation in roots of rice seedlings were studied. The results show that MCs accumulation was positively correlated with MCs concentration. After the treatment with 1 μg·L- 1MCs,the root growth and activity increased. Meanwhile,catalase( CAT) activity was increased to maintain H2O2at normal levels. After the treatment with 100 μg·L- 1MCs,the root growth and activity were inhibited whereas CAT had no obvious change. High concentrations( 1 000 μg·L- 1and 3 000 μg·L- 1) of MCs not only inhibited root growth and activity,but decreased CAT activity,leading to excessive H2O2accumulation and membrane peroxidation. After a 7-day recovery,MCs accumulations in roots in all treatment groups were all lower than those measured during the stress period. For the 100 μg·L- 1MCs treated group,the inhibition on root growth and root activity,and membrane peroxidation were alleviated,better than those measured during the stress period. However,for 1 000 μg·L- 1and 3 000 μg·L- 1MCs treated groups, inhibition on root growth,root activity,and CAT activity were heavier than those during the stress period,and oxidation stress intensified further,indicating that the damage caused by high concentrations( 1 000 μg·L- 1and 3 000 μg·L- 1) of MCs on rice roots was irreversible." @default.
- W3150742810 created "2021-04-13" @default.
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- W3150742810 date "2014-01-01" @default.
- W3150742810 modified "2023-09-26" @default.
- W3150742810 title "Effects of Microcystins on Growth and Antioxidant System of Rice Roots" @default.
- W3150742810 hasPublicationYear "2014" @default.
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