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Influence of 6-BA on Parameters of Magnolia Sieboldii Chlorophyll Fluorescence and Membrane Lipid Peroxidation under Low Temperature Stress

机译:6-BA对低温胁迫下木兰叶绿素荧光参数和膜脂过氧化的影响

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This thesis used the saplings of Magnolia sieboldii as materials to study the influence of 6-BA on parameters of chlorophyll a fluorescence and membrane lipid peroxidation under low temperature stress (10°C). The result showed that during the beginning period of the low temperature stress, 6-BA inhibits the increase of Fo, maintaing higher Fv/Fm, and Fv'/Fm', qP and NPQ, inhibiting the increase of relative electric conductivity and MDA content and improving the activity of catalase and superoxide dismutase so that both the stability of the membrane configuration under low temperature stress and the cold temperature resistance of Magnolia sieboldii can be strengthened.
机译:本文以木兰树苗为材料,研究了6-BA对低温胁迫(10℃)下叶绿素a荧光参数和膜脂过氧化的影响。结果表明,在低温胁迫初期,6-BA抑制Fo的增加,保持较高的Fv / Fm和Fv'/ Fm',qP和NPQ,抑制相对电导率和MDA含量的增加。并提高了过氧化氢酶和超氧化物歧化酶的活性,从而增强了低温胁迫下膜结构的稳定性和木兰的耐寒性。

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