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温度对短额负蝗生长发育及抗 氧化酶活性的影响
Effects of temperature on the growth, development and antioxidant enzyme activity of Atractomorpha sinensis (Orthoptera: Pyrgomorphidae)
李文博,陈欢欢,李新畅,崔 娟,田鑫月,李小花,王自杰,史树森
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DOI:10.7679/j.issn.2095-1353.2023.136
作者单位:曲靖师范学院生物资源与食品工程学院
中文关键词:短额负蝗;发育历期;发育起点温度;生命表;抗氧化酶
英文关键词:Atractomorpha sinensis; developmental duration; developmental threshold temperature; life table; antioxidant enzymes
中文摘要:

【目的】 本研究旨在探索温度对短额负蝗Atractomorpha sinensis种群生长发育影响及其成虫抗氧化酶对不同温度的响应。【方法】 在16、20、24、28和32 ℃的恒定温度条件下,统计短额负蝗取食大豆后各虫态的发育历期、存活率、繁殖力和种群增长指数,并测定成虫抗氧化酶活性。【结果】 短额负蝗各虫态的发育历期及成虫产卵(前)期均随温度升高而缩短。24 ℃下若虫期存活率最高,为68.97%。短额负蝗完成世代的发育起点温度和有效积温分别为10.76 ℃和1 481.52日·度。24 ℃时,种群净增值率(R0)和种群趋势指数(I)最高,分别为75.33和21.22;其次是28 ℃时,分别为41.75和12.51。16 ℃时,种群净增值率(R0)和种群趋势指数(I)最低,分别为33.67和9.25。此外,短额负蝗成虫体内存在清除自由基抗氧化酶系统,成虫寿命及种群生命表参数与抗氧化酶活性呈显著正相关。【结论】 24 ℃是该短额负蝗种群生长发育与繁殖最适的环境温度,环境温度与其体内抗氧化酶活性密切相关。

英文摘要:

[Objectives]  This study aims to ascertain the effects of temperature on the growth and development of Atractomorpha sinensis, as well as the response of adult antioxidant enzymes to different temperatures. [Methods]  The developmental duration, survival rate, fecundity and population growth index of various larval age stages raised on soybeans, and adult antioxidant enzyme activity, were measured and compared at temperatures of 16, 20, 24, 28 and 32 ℃. [Results]  The duration of larval development and adult pre-oviposition (oviposition) were shorter at higher temperatures. The survival rate of the nymph stage was highest (68.97%) at 24 ℃. The developmental threshold temperature and effective accumulated temperature of a complete generation were 10.77 ℃ and 1 481.52 degree-days, respectively. The population net reproduction rate (R0) and population trend index (I) were highest (75.33 and 21.22, respectively) at 24 ℃, lowest (33.67 and 9.25, respectively) at 16 ℃, and intermediate (41.75 and 12.51 respectively, at 28 ℃. Adults have a free radical-scavenging, antioxidant enzyme system and adult longevity and population life table parameters are significantly, and positively, correlated with antioxidant enzyme activity. [Conclusion]  The results suggest that 24 ℃ was the optimum temperature for the reproduction of A. sinensis and that there is a close relationship between ambient temperature and antioxidant enzyme activity.

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