数字农科院2.0

Bacterial Symbionts Confer Thermal Tolerance to Cereal Aphids Rhopalosiphum padi and Sitobion avenae

文献类型： 外文期刊

作者： Muhammad Zeeshan Majeed;Samy Sayed;Zhang Bo;Ahmed Raza;Chun Sen Ma

作者机构：

关键词： Aphid endosymbionts;Bacterial gene abundance;Chronic temperature tolerance;Critical thermal maxima;Thermal traits;Wheat aphids

期刊名称： Insects

ISSN： 2075-4450

年卷期： 2022 年 13 卷 3 期

页码：

收录情况： JCR（2021版）

摘要： High-temperature events are evidenced to exert significant influence on the population performance and thermal biology of insects, such as aphids. However, it is not yet clear whether the bacterial symbionts of insects mediate the thermal tolerance traits of their hosts. This study is intended to assess the putative association among the chronic and acute thermal tolerance of two cereal aphid species, Rhopalosiphum padi (L.) and Sitobion avenae (F.), and the abundance of their bacterial symbionts. The clones of aphids were collected randomly from different fields of wheat crops and were maintained under laboratory conditions. Basal and acclimated CTmax and chronic thermal tolerance indices were measured for 5-day-old apterous aphid individuals and the abundance (gene copy numbers) of aphid-specific and total (16S rRNA) bacterial symbionts were determined using real-time RT-qPCR. The results reveal that R. padi individuals were more temperature tolerant under chronic exposure to 31 °C and also exhibited about 1.0 °C higher acclimated and basal CTmax values than those of S. avenae. Moreover, a significantly higher bacterial symbionts’ gene abundance was recorded in temperature-tolerant aphid individuals than the susceptible ones for both aphid species. Although total bacterial (16S rRNA) abundance per aphid was higher in S. avenae than R. padi, the gene abundance of aphid-specific bacterial symbionts was nearly alike for both of the aphid species. Nevertheless, basal and acclimated CTmax values were positively and significantly associated with the gene abundance of total symbiont density, Buchnera aphidicola, Serratia symbiotica, Hamilton defensa, Regiella insecticola and Spiroplasma spp. for R. padi, and with the total symbiont density, total bacteria (16S rRNA) and with all aphid-specific bacterial symbionts (except Spiroplasma spp.) for S. avenae. The overall study results corroborate the potential role of the bacterial symbionts of aphids in conferring thermal tolerance to their hosts.

分类号：

  • 相关文献

[1]The Impact of Transgenic Wheat Expressing GNA (snowdrop lectin) on the Aphids Sitobion avenae, Schizaphis graminum, and Rhopalosiphum padi. Xu, Weigang,Hu, Lin,Miao, Jin,Wu, Yuqing,Yu, Zhenxing,Xu, Qiongfang. 2011

[2]Exploration of phyllosphere microbiomes in wheat varieties with differing aphid resistance. Xinan Li,Chao Wang,Xun Zhu,Vardis Ntoukakis,Tomislav Cernava,Decai Jin. 2023

[3]Predation and Biocontrol Potential of Eupeodes corollae Fabricius (Diptera: Syrphidae) on Wheat Aphids. Shanshan Jiang,Hui Li,Hainuo Wang,Xiaoxia Liu,Kongming Wu. 2024

[4]Interannual and seasonal migratory patterns of wheat aphids across the Bohai Strait in eastern Asia. Wang, Xingya,Ma, Haotian,Gao, Ying,Yu, Mingli,Zhao, Yuechao,Wu, Kongming. 2024

[5]Pesticide thiamethoxam in seed treatment: Uptake, metabolic transformation and associated synergistic effects against wheat aphids. Yage Guo,Yunhui Zhang,Fengshou Dong,Xiaohu Wu,Xinglu Pan,Yongquan Zheng,Jun Xu. 2024

[6]Sublethal and intergenerational effects of flonicamid on biological traits in the rose-grain aphid, Metopolophium dirhodum. Li, Xinan,Song, Chengze,Zhang, Wen,Zhang, Xiaoya,Wang, Fengfan,Qin, Ruiyang,Zhu, Ganyu,Zhu, Xun,Zhang, Yunhui. 2025

[7]Evaluation of the biocontrol potential of Episyrphus balteatus (Diptera: Syrphidae) on wheat aphids in northern China. Jiang, Shanshan,Liu, Xiaoxia,Wu, Kongming. 2025

作者其他论文 更多>>