Identification of pheromone-like compounds in male reproductive organs of the oriental locust Locusta migratoria
Identification of pheromone-like compounds in male reproductive organs of the oriental locust Locusta migratoria
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东方蝗虫雄性生殖器官中类信息素化合物的鉴定
DOI：
10.1016/j.bbrc.2013.07.015
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发表时间：
2013-08-09
影响因子：
3.1
通讯作者：
Pelosi, Paolo
中科院分区：
文献类型：
--
作者：
Ban, Liping;Napolitano, Elio;Pelosi, Paolo
尽管蝗虫在农业上有很大的经济利益，但对其化学感受系统的了解仍然很少。苯乙腈被认为是沙漠蝗虫Schistocerca gregaria的信息素，触发聚集，促进聚集和抑制求偶。然而，在另一种主要的蝗虫，飞蝗，信息素还没有报道。我们从移行瓢虫雄性生殖器官中鉴定出了萘丙腈的两种异构体。化学合成证实了这两种化合物的同一性。这两种异构体都显示出对CSP91的显著亲和力，CSP91是睾丸中报道的蛋白质，但对雌性附腺中表达的同一家族的其他三种蛋白质（CSP180、CSP540和CSP884）没有亲和力。这些化合物与苯乙腈和不寻常的性质，这些化学品的惊人的相似性强烈表明，萘基丙腈可能是信息素L migratoria，而他们的网站的表达和结合活性表明两性之间的沟通中的作用。(C)2013 Elsevier Inc. All rights reserved.
Despite the great economical interest of locusts in agriculture, knowledge on their chemoreception systems is still poor. Phenylacetonitrile is recognised as a pheromone of the desert locust Schistocerca gregaria, triggering gregarization, promoting aggregation and inhibiting courtship. However, in the other major locust species, Locusta migratoria, pheromones have not been reported. We have identified the two isomers of naphthylpropionitrile from the male reproductive, organs of L migratoria. Chemical synthesis has confirmed the identity of the two compounds. Both isomers show significant affinity to CSP91, a protein reported in the testis, but not to three other proteins of the same family (CSP180, CSP540 and CSP884) expressed in female accessory glands. The striking similarity of these compounds with phenylacetonitrile and the unusual nature of such chemicals strongly suggest that naphthylpropionitrile could be pheromones for L migratoria, while their site of expression and binding activity indicate a role in communication between sexes. (C) 2013 Elsevier Inc. All rights reserved.