| 摘要: |
| 随着低温时间延长,番茄、辣椒幼苗GSH和ASA含量下降,CAT活性降低,H_2O_2含量相应增高;MDA积累和电解质泄漏增多,膜脂过氧化作用增强,膜系统受到的伤害加大。番茄和辣椒幼苗在2±1℃的低温胁迫超过2h时,膜系统的损害明显加大。自由基清除剂(GSH、AsA、SB和甘露醇)的预处理可减轻低温引起的膜脂过氧化。低温下,叶绿体膜脂过氧化作用亦增强。 |
| 关键词: 茄果类幼苗,低温伤害,膜脂过氧化作用,自由基清除剂 |
| DOI： |
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| LOW TEMPERATURE INJURY AND PEROXIDATION OF MEMBRANE LIPIDS IN TOMATO AND PEPPER SEEDLINGS |
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| Abstract: |
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| Key words: Tomato and pepper seedlings,Low temperature injury,Peroxidation membrane--lipid,Free--radical Scaveger |