d-Pinitol in Fabaceae: an Oviposition Stimulant for the Common Grass Yellow Butterfly, Eurema mandarina

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• 作者：Shin-ya Mukae ; Toshiki Ohashi ; Yuika Matsumoto ; Shinji Ohta…
• 关键词：Butterfly ; Host selection ; Coliadinae ; Oviposition ; Fabaceae ; d ; pinitol
• 刊名：Journal of Chemical Ecology
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：42
• 期：11
• 页码：1122-1129
• 全文大小：
• 刊物主题：Ecology; Biochemistry, general; Entomology; Biological Microscopy; Agriculture;
• 出版者：Springer US
• ISSN：1573-1561
• 卷排序：42

文摘

The common grass yellow butterfly, Eurema mandarina (formerly Eurema hecabe mandarina) (Lepidoptera, Pieridae), recently has been separated taxonomically from a subtropical population of Eurema hecabe in Japan. This species is widely distributed in the temperate region of Japan, and feeds mainly on various ligneous plants within the Fabaceae. We attempted to identify an oviposition stimulant for E. mandarina from its primary hosts, Albizia julibrissin and Lespedeza cuneata. In both hosts, crude extract and an aqueous fraction elicited oviposition responses from gravid females. A polar subfraction of the aqueous fraction also stimulated high oviposition-stimulatory activity, comparable to the original aqueous fraction, suggesting that E. mandarina females use water-soluble compounds for host recognition. Subsequent activity-directed fractionation by ion exchange chromatography indicated that one of the key substances was contained in the neutral/amphoteric fraction. Chemical analyses revealed that the active fractions of both hosts contained d-(+)-pinitol as the major component. We examined female responses to authentic d-pinitol and found that it induced oviposition responses at concentrations greater than 0.1 %. Since this cyclitol is omnipresent in Fabaceae, we conclude that d-pinitol plays a role in mediating oviposition of E. mandarina on fabaceous plants.