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Disorder in convergent floral nanostructures enhances signalling to bees

机译:会聚的花卉纳米结构中的紊乱增强了对蜜蜂的信号传导

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摘要

Diverse forms of nanoscale architecture generate structural colour and perform signalling functions within and between species. Structural colour is the result of the interference of light from approximately regular periodic structures; some structural disorder is, however, inevitable in biological organisms. Is this disorder functional and subject to evolutionary selection, or is it simply an unavoidable outcome of biological developmental processes? Here we show that disordered nanostructures enable flowers to produce visual signals that are salient to bees. These disordered nanostructures (identified in most major lineages of angiosperms) have distinct anatomies but convergent optical properties; they all produce angle-dependent scattered light, predominantly at short wavelengths (ultraviolet and blue). We manufactured artificial flowers with nanoscale structures that possessed tailored levels of disorder in order to investigate how foraging bumblebees respond to this optical effect. We conclude that floral nanostructures have evolved, on multiple independent occasions, an effective degree of relative spatial disorder that generates a photonic signature that is highly salient to insect pollinators.
机译:纳米结构的多种形式产生结构颜色,并在物种内部和物种之间执行信号传递功能。结构颜色是来自近似规则周期性结构的光干涉的结果;然而,生物有机体不可避免地会出现一些结构性疾病。这种疾病是功能性的并且受进化选择的影响,还是生物学发展过程中不可避免的结果?在这里,我们表明无序的纳米结构使花朵能够产生对蜜蜂显着的视觉信号。这些无序的纳米结构(在大多数主要的被子植物谱系中均已鉴定)具有独特的解剖结构,但光学特性趋于一致。它们都产生与角度相关的散射光,主要是短波长(紫外线和蓝色)。为了研究觅食大黄蜂如何响应这种光学效应,我们制造了具有纳米结构的人造花,这些结构具有定制的无序水平。我们得出的结论是,在多个独立的场合,花卉纳米结构已经演化出有效程度的相对空间无序,从而产生了对昆虫授粉者高度显着的光子特征。

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  • 来源
    《Nature》 |2017年第7677期|469-474|共6页
  • 作者单位

    Univ Cambridge, Dept Plant Sci, Downing St, Cambridge CB2 3EA, England;

    Univ Cambridge, Dept Phys, JJ Thomson Ave, Cambridge CB3 OHE, England;

    Univ Cambridge, Dept Chem, Lensfield Rd, Cambridge CB2 1EW, England;

    Royal Bot Gardens, Richmond TW9 3AB, Surrey, England;

    Royal Bot Gardens, Richmond TW9 3AB, Surrey, England;

    Univ Cambridge, Dept Plant Sci, Downing St, Cambridge CB2 3EA, England;

    Univ Cambridge, Dept Plant Sci, Downing St, Cambridge CB2 3EA, England;

    Univ Cambridge, Dept Plant Sci, Downing St, Cambridge CB2 3EA, England;

    Univ Cambridge, Dept Plant Sci, Downing St, Cambridge CB2 3EA, England;

    Univ Cambridge, Dept Phys, JJ Thomson Ave, Cambridge CB3 OHE, England|Adolphe Merkle Inst, Chemin Verdiers 4, CH-1700 Fribourg, Switzerland;

    Univ Cambridge, Dept Chem, Lensfield Rd, Cambridge CB2 1EW, England;

    Univ Cambridge, Dept Plant Sci, Downing St, Cambridge CB2 3EA, England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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