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)  

作　　者：Yingying Song Li Liu Fang Ouyang Hongying Cui Wenxiu Guo Suhong Lv Baohua Ye Lili Li Yi Yu Xingyuan Men 

机构地区：[1]Institute of Plant Protection,Shandong Academy of Agricultural Sciences,Jinan,China [2]College of Plant Protection,Shandong Agricultural University,Jinan,China [3]State Key Laboratory of Integrated Management of Pest Insects and Rodents,Institute of Zoology,Chinese Academy of Sciences,Bejing,China

出　　处：《Insect Science》2024年第3期927-936,共10页昆虫科学（英文版）

基　　金：supported by the Bee Industry Innovation Team of Shandong Province,National Natural Science Foundation of China(32202316);Agricultural Science and Technology Innovation Project of Shandong Academy of Agricultural Sciences(CXGC2023D01,CXGC2023F04).

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℃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 0.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 0.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.

关 键 词：ecological service value flight ability OSMIA pollination efficiency refrigeration VITALITY 

分 类 号：Q96[生物学—昆虫学]