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title: Work division of floral scent compounds in mediating pollinator behaviours
author: Gu, Ding;  Yang, Da-Rong;  Yang, Pei;  Peng, Yan-Qiong;  Wang, Zhen-Ji
Issued Date: 2016
Abstract: Floral scents are known as an olfactory signal for attracting pollinators, but why the flowers pollinated by highly specialised pollinators emit scents consisting of mixtures of many compounds and dominated by one or a few compounds is still poorly understood. We supposed that each (especially characteristic) chemical in floral scents may play a specific role in mediating pollinator behaviours and tested this supposition in a fig-fig wasp mutualism. Ficus curtipes is obligately pollinated by an undescribed Eupristina species. In the scent of F.curtipes receptive figs, over 50 compounds have been identified, and the scent is dominated by two compounds, 6-methyl-5-hepten-2-ol (OL) and 6-methyl-5-hepten-2-one (NE). We therefore tested the roles of the two major chemicals in mediating the pollinator behaviours. Our results show that OL and NE, respectively, act as a long-distance attractant and a fig-entry behaviour stimulant to the obligate pollinator wasp. Namely, OL attracts the wasps to the figs and NE guides the wasps into the figs. This finding on the work division of floral scent compounds partially explains the maintenance mechanism of the fig-fig wasp mutualism and the significance of the chemical diversity of floral scent in plant–pollinator interactions, especially in specialised pollination systems.
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全文许可: Creative Commons 署名-非商业性使用-相同方式共享 3.0

Recommended Citation:
Gu, Ding,Yang, Da-Rong,Yang, Pei,et al. Work Division Of Floral Scent Compounds In Mediating Pollinator Behaviours[J]. Chemistry And Ecology,2016,32(8):733-741.

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