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摘要 : 2017年10月23日,国际学术权威刊物自然出版集团《Nature》杂志在线发表了英国剑桥大学Beverley J. Glover研究员的一篇研究论文,论文报道了蜜蜂和其它传粉者之所以能迅速发现花朵,是因为花瓣上纳米级图案产生的蓝色光环。

2017年10月23日,国际学术权威刊物自然出版集团《Nature》杂志在线发表了英国剑桥大学Beverley J. Glover研究员的一篇研究论文,论文报道了蜜蜂和其它传粉者之所以能迅速发现花朵,是因为花瓣上纳米级图案产生的蓝色光环。研究表明现存大多数开花植物群都有这种光环,但是不同系的植物可能各自独立进化出该特征。


Beverley J. Glover及其同事分析了不同开花植物的花瓣图案,结果表明,尽管它们的纳米结构各不相同,但是都表现出一定的相似程度,即无论它们所含的色素是什么,这些不规则结构在遇到太阳光线照射时,都产生颜色为紫外光到蓝光的光环。



Disorder in convergent floral nanostructures enhances signalling to bees


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.

来源: Nature 浏览次数:0


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