Vignolini Silvia, Gregory Thomas, Kolle Mathias, Lethbridge Alfie, Moyroud Edwige, Steiner Ullrich, Glover Beverley J, Vukusic Peter, Rudall Paula J
Chemistry Department, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
Royal Botanic Gardens Kew, Richmond, Surrey TW9 3AB, UK.
J R Soc Interface. 2016 Nov;13(124). doi: 10.1098/rsif.2016.0645.
The bright and intense blue-green coloration of the fruits of (Phyllanthaceae) was investigated using polarization-resolved spectroscopy and transmission electron microscopy. Optical measurements of freshly collected fruits revealed a strong circularly polarized reflection of the fruit that originates from a cellulose helicoidal cell wall structure in the pericarp cells. Hyperspectral microscopy was used to capture the iridescent effect at the single-cell level.
利用偏振分辨光谱和透射电子显微镜对叶下珠科植物果实明亮且强烈的蓝绿色进行了研究。对新鲜采集果实的光学测量显示,果实具有强烈的圆偏振反射,这源于果皮细胞中的纤维素螺旋细胞壁结构。利用高光谱显微镜在单细胞水平上捕捉了这种虹彩效应。