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首页> 外文期刊>Acta Horticulturae >Effects of P deficiency on protective enzyme activity and membrane lipid peroxidation in different tomato genotypes.
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Effects of P deficiency on protective enzyme activity and membrane lipid peroxidation in different tomato genotypes.

机译:P缺乏对不同番茄基因型保护酶活性和膜脂过氧化的影响。

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摘要

The protective enzyme activity and membrane lipid peroxidation in leaves at different P levels in nine tomato genotypes collected from the world were studied in nutrient solution culture. Phosphorus deficiency decreased leaf Chl contents. Compared with the control, there was a slight change of catalase activities in tomato seedlings under P deficiency, but superoxide dismutase activities, peroxidase activities and membrane-lipid peroxidation contents increased in phosphorus deficiency seedlings. There were differences in SOD activities, POD activities and MDA contents among tomato genotypes. The SOD activities under P deficiency stress in No. 4 and No. 54 increased more than that in No. 46, No. 2738 and No. 37 as compared with control seedlings. POD activities under P deficiency stress in No. 27, No. 37 and No. 46 increased more than that in No. 4, No. 25 and No. 2738. MDA contents under P deficiency stress in No. 2, No. 4 and No. 2738 increased more than that in No. 25, No. 27 and No. 37 as compared with control seedlings. These results indicated that the possible role of SOD activities, POD activities and MDA contents as anti-oxidant protector systems for tomato plants under phosphorus deficiency. Moreover, they suggest the possibility of using these enzyme activities as an additional screening criterion for detecting phosphorus efficiency in tomato genotypes.
机译:在营养溶液培养中研究了来自世界上收集的九种番茄基因型的不同P水平的叶片中的保护酶活性和膜脂质过氧化。磷缺乏减少叶CHL含量。与对照相比,P缺乏的番茄幼苗中的过氧化氢酶活性略有变化,但超氧化物歧化酶活性,过氧化物酶活性和膜 - 脂质过氧化含量增加磷缺乏幼苗。番茄基因型中的SOD活动,POD活动和MDA内容存在差异。与对照幼苗相比,第4号和第54号和第54号和第46号的第46号,第2738号和第37号增加的SOD活性增加。在第37号,第37号和第37号,第37号和第46号的第27号和第46号的第25号和第2738号的第25号和第2738号的第25号缺乏症中的POD活性增加。与对照幼苗相比,第2738号比第27号和第37号,第27号和第37号增加。这些结果表明,SOD活性,POD活性和MDA含量的可能作用是磷缺乏的番茄植物的抗氧化剂保护剂系统。此外,它们表明可能使用这些酶活性作为用于检测番茄基因型中磷效率的额外筛选标准。

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