蝗虫
生物
飞蝗
信息素
蝗科
性信息素
动物
生物化学
直翅目
植物
作者
Xian-Hong Zhou,Liping Ban,Immacolata Iovinella,Li-Jing Zhao,Qian Gao,Antonio Felicioli,Simona Sagona,Giuseppe Pieraccini,Paolo Pelosi,Long Zhang,Francesca Romana Dani
标识
DOI:10.1515/hsz-2012-0114
摘要
Abstract Chemosensory proteins (CSPs) are small soluble proteins often associated with chemosensory organs in insects but include members involved in other functions, such as pheromone delivery and development. Although the CSPs of the sensory organs have been extensively studied, little is known on their functions in other parts of the body. A first screening of the available databases has identified 70 sequences encoding CSPs in the oriental locust Locusta migratoria manilensis . Applying proteomic analysis, we have identified 17 of them abundantly expressed in the female reproductive organs, but only one (CSP91) in male organs. Bacterially expressed CSP91 binds fatty acids with a specificity for oleic and linoleic acid, as well as medium-length alcohols and esters. The same acids have been detected as the main gas chromatographic peaks in the dichloromethane extracts of reproductive organs of both sexes. The abundance and the number of CSPs in female reproductive organs indicates important roles for these proteins. We cannot exclude that different functions can be associated with each of the 17 CSPs, including delivery of semiochemicals, solubilization of hormones, direct control of development, or other unknown tasks.
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