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Adaptability of Two Soybean Aphid Species to High Diurnal Temperatures

文献类型： 外文期刊

作者： Huo, Dongbo 1 ; Tian, Zhenqi 1 ; Liu, Dailin 1 ; Wu, Cirui 1 ; Wang, Ling 2 ; Liu, Jian 1 ;

作者机构： 1.Northeast Agr Univ, Coll Agr, Changjiang Rd 600, Harbin 150030, Heilongjiang, Peoples R China

2.Heilongjiang Acad Agr Sci, Inst Crop Cultivat & Tillage, Harbin 150086, Heilongjiang, Peoples R China

关键词： Aphis glycines (Matsumura); Aulacorthum solani (Kaltenbach); high temperature adaptability

期刊名称：ENVIRONMENTAL ENTOMOLOGY （ 影响因子：2.387； 五年影响因子：2.194 ）

ISSN： 0046-225X

年卷期： 2022 年 51 卷 6 期

页码：

收录情况： SCI

摘要： The local temperature in the Harbin region of northeast China has been rising, with temperatures above 27 degrees C often being recorded. The soybean aphid, Aphis glycines (Matsumura) (Hemiptera: Aphididae), and foxglove aphid, Aulacorthum solani (Kaltenbach) (Hemiptera: Aphididae), are important pests in soybeans in the region, which face great survival pressure due to rising temperatures. In this study, A. glycines and A. solani were reared at thermoperiods with diurnal temperatures of 25, 27, 29, 31, 33, 35, and 37 degrees C, nocturnal temperature of 20 degrees C, 70% +/- 5% relative humidity, and a photoperiod of 14:10 (L: D) hr. Diurnal thermoperiod 25 degrees C was used as control. Some life characteristics of the aphids were assessed. The adaptation of A. solani to high diurnal temperatures was found to be worse than that of A. glycines. Aphis glycines could develop and reproduce successfully at diurnal temperatures of 27-35 degrees C, whereas A. solani could only develop and reproduce at 27-29 degrees C. At diurnal thermoperiods at 25 degrees C, adult lifespan of A. solani was as long as that of A. glycines. When diurnal temperatures increased from 27 to 31 degrees C, adult lifespan of A. solani were shorter than those of A. glycines. At diurnal thermoperiods at 25 and 27 degrees C, the body sizes of A. solani adults were larger than those of A. glycines. At diurnal thermoperiods at 29 and 31 degrees C, the body size of A. solani adults were as large as those of A. glycines. Our results provide important information on the survival, development, and reproduction of A. glycines and A. solani exposed to temperatures above 27 degrees C, which is important for evaluating the adaptability of aphids to high temperatures and predicting their dynamics in soybeans in northeast China, where the local environmental temperature continues to rise.

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