Open AccessDegradation of Chlorophyll Luminescence in Plants
Author(s) -
O. V. Vakulenko,
Olesia O. Grygorieva,
O.I. Dacenko
Publication year - 2012
Publication title -
ukrainian journal of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 17
eISSN - 2071-0194
pISSN - 2071-0186
DOI - 10.15407/ujpe57.2.256
Subject(s) - degradation (telecommunications) , luminescence , chlorophyll , intensity (physics) , photoluminescence , materials science , liquid nitrogen , light intensity , chlorophyll a , photochemistry , chemistry , optoelectronics , optics , physics , computer science , telecommunications , organic chemistry , biochemistry
The chlorophyll photoluminescence intensity degradation of Vallisneria spiralis L. water plant is studied. It is shown that the degradation curve is rather well described by a sum of two hyperbolic functions. The rate of intensity degradation reduces at low temperatures. At room temperature, a slow restoration of the luminescent system is observed after the irradiation has been ceased. No restoration is detected at the liquid nitrogen temperature. A simplified model which describes the luminescence degradation according to the quadratic law is suggested.