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Imaging by Delayed Light Emission (Phytoluminography) as a Method for Detecting Damage to the Photosynthetic System
Author(s) -
BJÖRN L. O.,
FORSBERG A. S.
Publication year - 1979
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1979.tb06516.x
Subject(s) - image intensifier , luminescence , fluorescence , photosynthesis , visible spectrum , optics , radiation , chlorophyll fluorescence , ultraviolet , ultraviolet light , materials science , optoelectronics , biophysics , biology , physics , botany
An improved apparatus for obtaining luminescence (delayed light emission) images of plants is described. It consists of a phosphoroscope equipped with an imaging lens and an electronic image intensifier. It is also equipped with light‐sources for obtaining images with reflected light and fluorescence light. It is shown that damage to the photosynthetic system caused by virus, insects, high or low temperature, ultraviolet radiation, or herbicide, and also chioroplast senescence as part of a normal developmental process, can be followed by this non‐destructive method. In many cases changes which are not visible in fluorescence images are clearly seen in luminescence images.