Autumn Leaves ofGinkgo bilobaL.: Optical Properties, Pigments and Optical Brighteners
作者:
Ph. Matile,
Barbara M.‐P. Flach,
B. M. Eller,
期刊:
Botanica Acta
(WILEY Available online 1992)
卷期:
Volume 105,
issue 1
页码: 13-17
ISSN:0932-8629
年代: 1992
DOI:10.1111/j.1438-8677.1992.tb00261.x
出版商: Blackwell Publishing Ltd
关键词: Ginkgo biloba;leaf yellowing;reflectance;pigments;fluorescence;optical brighteners;optical properties
数据来源: WILEY
摘要:
AbstractSenescent leaves ofGingko bilobaaccumulate fluorescent compounds which may contribute to the golden luminous appearance of the autumnal foliage. Apart from the putative effect of such optical brighteners, the changes of spectral optical properties associated with senescence are due to the breakdown of chlorophyll in conjunction with a remarkably high retention of carotenoids. Carotenoid esters accumulate concomitant with chlorophyll breakdown. Optical properties in the infrared range of the spectrum illustrate the intactness of leaf tissue to the end of the senescence period.
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