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相对湿度对高温胁迫下苹果果皮组织细胞膜功能的影响 被引量:5

Effect of Relative Humidity on Membrane Functions in Apple Peel Tissues under High-temperature Stress
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摘要 以红富士苹果为试材,研究了高温胁迫下,不同相对湿度对果皮组织5'-核苷酸酶和脂氧合酶活性以及细 胞膜透性的影响。结果表明:高温胁迫下,随着相对湿度的增加,果皮组织细胞膜透性减小,LOX活性降低,而5'-核 苷酸酶活性则有不同程度地升高。在48℃高温胁迫下,30%相对湿度与50%以上相对湿度对果皮组织细胞膜功能 的影响有显著差异。在容易发生果实日灼的高温天气里,增加果园空气湿度有助于提高果实表皮组织抗氧化能力和 细胞膜的稳定性,从而提高果实的抗热性。 The effect of relative humidity on membrane functions in fruit peel tissues was examined with Fuji apples. The results showed that under high-temperature stress, LOX activity and membrane leakage decreased but 5'-nucleotidase activity increased as environmental relative humidity rose. Moreover, a significant difference was found between 30% and 50% relative humidity treatments in membrane function of peel tissues. In hot weather when fruit sunburn is likely to happen, enhancing the relative humidity in an orchard could be beneficial to raise the antioxidative capability in fruit peel tissues, hence improving fruit resistance to heat.
出处 《华北农学报》 CSCD 北大核心 2005年第1期52-54,共3页 Acta Agriculturae Boreali-Sinica
基金 河北省自然科学基金资助项目(303203)河北农业大学回国留学人员科研启动基金资助项目(2002-0915)
关键词 高温胁迫 果皮 苹果 果实 酶活性 相对湿度 组织细胞 膜功能 LOX 核苷酸 High-temperature stress Relative humidity Apple Fruit peel Enzyme
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