Cold storage alters the fat-trehalose trade-off, decreases the flight ability, and maintains the high survival rate and flight speed of Osmia excavata (Hymenoptera: Megachilidae)
文献类型： 外文期刊
作者： Song, Yingying 1 ; Liu, Li 2 ; Ouyang, Fang 3 ; Cui, Hongying 1 ; Guo, Wenxiu 1 ; Lv, Suhong 1 ; Ye, Baohua 2 ; Li, Lili 1 ; Yu, Yi 1 ; Men, Xingyuan 1 ;
作者机构： 1.Shandong Acad Agr Sci, Inst Plant Protect, Jinan, Peoples R China
2.Shandong Agr Univ, Coll Plant Protect, Jinan, Peoples R China
3.Chinese Acad Sci, Inst Zool, State Key Lab Integrated Management Pest Insects &, Beijing, Peoples R China
关键词： ecological service value; flight ability; Osmia; pollination efficiency; refrigeration; vitality
期刊名称：INSECT SCIENCE （ 影响因子：4.0； 五年影响因子：3.6 ）
ISSN： 1672-9609
年卷期： 2023 年
页码：
收录情况： SCI
摘要： Osmia solitary bees are important pollinators of various crops worldwide. Refrigeration has been widely used to synchronize the emergence time of Osmia species from cocoons with the blooming time of different crops, but the fitness of Osmia after refrigeration remains unknown. Here, the effects of long-term refrigeration at 0(degrees)C on the vitality, flight ability, and metabolism of Osmia excavata, which is known as the "king of pollination" in China, were studied. The survival rate (>90% before 120 d), weight loss rate (<15% after 170 d), and mean flight speed of O. excavata were not greatly affected after long-term refrigeration. The content of fats, which have antifreeze and energy storage properties, was not significantly altered in O. excavata before 130 d of refrigeration, which might explain why the survival rates and flight speed of O. excavata remained high after long-term refrigeration. However, the flight duration and distance decreased significantly (P < 0.05), and both were positively correlated with the reduced trehalose levels in O. excavata (r = [+0.69] - [+0.71]; P < 0.05). Overall, these findings indicate that the pollination potential of O. excavata for various crops with different flowering periods is high after long-term refrigeration; however, long-term refrigeration may decrease pollination efficiency. Our findings highlight new research directions that could improve the ecological service function of refrigerated O. excavata.
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