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首页> 外文期刊>Flora >Hawk-moth pollination and elaborate petals in Cucurbitaceae: The case of the Caribbean endemic Linnaeosicyos amara
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Hawk-moth pollination and elaborate petals in Cucurbitaceae: The case of the Caribbean endemic Linnaeosicyos amara

机译：葫芦科的鹰蛾授粉和精致的花瓣：加勒比地区特有的Linnaeosicyos amara病例

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摘要

Linnaeosicyos amara is a little known cucurbit endemic to the Caribbean island of Hispaniola. The species possesses conspicuously fringed petals which are known in just four other cucurbit genera and hypothesised to play a role in pollinator attraction. A population of flowering L amara plants was observed for a total of 78 h, which revealed that Sphingid moths are the primary pollinators. Floral scent was dominated by the terpenoid (E)-beta-ocimene. The elaborate petal fringes almost doubled the apparent diameter of L. amara flowers and the maximal extension of petal fringes was found to coincide with the peak visitation period of hawk-moths, with withering starting soon after. We conclude that petal fringes likely play a role in the visual attraction of hawk-moths by exploiting their preference for large flowers with deeply-divided petal margins, whilst limiting energy costs to the plant. (C) 2015 Elsevier GmbH. All rights reserved.
机译：Linnaeosicyos amara是加勒比岛屿Hispaniola特有的鲜为人知的葫芦科植物。该物种具有明显的边缘花瓣，仅在其他四个葫芦属中才知道，并且被认为在授粉媒介吸引中起作用。观察到总共有78小时的开花的L amara植物种群，这表明鞘氨醇蛾是主要的传粉媒介。花香主要由萜类化合物（E）-β-烯丙二烯构成。精致的花瓣条纹几乎使L. amara花的表观直径增加了一倍，并且发现花瓣条纹的最大延伸与鹰蛾的高峰访问期相符，此后不久便开始枯萎。我们得出的结论是，花瓣边缘可能会通过利用鹰嘴蛾的视觉吸引力来发挥作用，因为它们偏爱花瓣边缘边缘深度较大的大花朵，同时限制了植物的能源成本。 （C）2015 Elsevier GmbH。版权所有。

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