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    简营, 全振炫, 胡福初, 等. 干旱、淹水和低温胁迫对莲雾抗氧化系统的影响[J]. 华南农业大学学报, 2018, 39(1): 51-56. DOI: 10.7671/j.issn.1001-411X.2018.01.009
    引用本文: 简营, 全振炫, 胡福初, 等. 干旱、淹水和低温胁迫对莲雾抗氧化系统的影响[J]. 华南农业大学学报, 2018, 39(1): 51-56. DOI: 10.7671/j.issn.1001-411X.2018.01.009
    shu
    JIAN Ying, QUAN Zhenxuan, HU Fuchu, LU Man, WANG Lu, ZHOU Biyan. Effects of drought, waterlogging and chilling stresses on antioxidant system of Syzygium samarangense[J]. Journal of South China Agricultural University, 2018, 39(1): 51-56. DOI: 10.7671/j.issn.1001-411X.2018.01.009
    Citation: JIAN Ying, QUAN Zhenxuan, HU Fuchu, LU Man, WANG Lu, ZHOU Biyan. Effects of drought, waterlogging and chilling stresses on antioxidant system of Syzygium samarangense[J]. Journal of South China Agricultural University, 2018, 39(1): 51-56. DOI: 10.7671/j.issn.1001-411X.2018.01.009
    shu

    干旱、淹水和低温胁迫对莲雾抗氧化系统的影响

    Effects of drought, waterlogging and chilling stresses on antioxidant system of Syzygium samarangense

      摘要
    • 摘要:
      目的  探讨干旱、淹水和低温胁迫对莲雾Syzygium samarangense营养生长的控制作用以及对抗氧化系统的影响。
      方法  在控温室中对盆栽莲雾进行干旱、淹水和低温胁迫处理，以常温下正常浇水的盆栽莲雾作为对照，观察新梢的抽生情况，测定各处理植株叶片的相对含水量、丙二醛含量和抗氧化水平。
      结果  3种胁迫处理均有效控制新梢的抽生；干旱和淹水胁迫下，莲雾叶片相对含水量减少，解除胁迫后相对含水量恢复到对照水平；与对照相比，3种胁迫处理均增加了叶片丙二醛的含量，提高了叶片超氧化物歧化酶和抗坏血酸过氧化物酶的活性，增加了抗坏血酸和还原型谷胱甘肽的含量。
      结论  干旱、淹水和低温胁迫处理有效控制了营养生长，提高了莲雾抗氧化水平。

       

      Abstract:
      Ojective  To investigate the effects of drought, waterlogging and chilling stresses on vegetative growth and antioxidant system of wax apple (Syzygium samarangense).
      Method  Potted wax apple trees were subjected to drought, waterlogging and chilling stresses in a temperature-controlled room. Trees which were normally watered and grown at room temperature were used as controls. Shoot growth was observed. The relative water content, malondiadehyde (MDA) content, and antioxidant levels of leaves were measured.
      Result  Sprouting were prevented by all three stress treatments. Relative water content of the drought- and waterlogging-treated leaves decreased, but increased to control levels after relieving the stresses. Three stress treatments increased leaf MDA contents, superoxide dismutase (SOD) and ascorbic acid peroxidase (APX) activities, as well as ascorbic acid (AsA) and reduced glutathione (GSH) contents compared with control.
      Conclusion  Drought, waterlogging and chilling stresses could control vegetative growth and increase the antioxidant level of wax apple.

       

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