Impacts of Non-Lethal High-Temperature Stress on the Development and Reproductive Organs of Bradysia odoriphaga

Insects

Seng Zhang¹  Jingrong Hu¹  Caihua Shi¹  Rudoviko Galileya Medison¹  Peifang Ma² 

[1] Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou 434025, China;Henan Engineering Research Center of Chinese Chives, Pindingshan Academy of Agricultural Sciences, Pindingshan 467000, China;

关键词: Allium tuberosum;    chive gnats;    emergence;    fertility;    sublethal;   

DOI  :  10.3390/insects13010074

来源: DOAJ

【 摘 要 】

Bradysia odoriphaga is an agricultural pest in China’s vegetable industry. In this study, pupae and adults were exposed to various non-lethal high-temperatures. The results demonstrated a decreased rate of eclosion once the pupae were exposed to temperatures exceeding 37 °C for 1 h. No effect on the lifespan of unmated female adults was observed after exposure to temperature stress, while unmated male adult lifespan decreased (>37 °C for 2 h). The size of the testis and ovaries for unmated male and female adults decreased, as did the fecundity and egg hatching rate for mated females. Compared with the control group (25 °C), the testis size of unmated male adults decreased after high-temperature stress followed by recovery at 25 °C for 1 h, though the size of the ovaries of female adults did not change. Additionally, the size of the testis and ovaries for unmated male and female adults decreased following high-temperature stress and 24 h of recovery at 25 °C. High temperatures affected males more than females; 37 °C is the critical temperature to control the population of B. odoriphaga. These results lay the foundation for the future development of environmentally friendly high-temperature prevention and pest-control strategies.

【 授权许可】

Unknown