Fluorescence kinetics of chloroplasts as indicators of disorders in the photosynthetic system <p>I. Comparative studies with greening leaves of <i>Vitis</i> and <i>Hordeum</i>

Authors

  • U. Stein
  • C. Buschmann
  • R. Blaich

DOI:

https://doi.org/10.5073/vitis.1986.25.129-141

Keywords:

leaf, photosynthesis, chlorophyll, light

Abstract

Kinetics of both delayed fluorescence (luminescence) and prompt fluorescence of chlorophyll are used to characterize photosynthetic activity in leaf tissues. In a first attempt the greening process in etiolated Vitis cuttings and Hordeum seedlings was studied. Data sampling and processing, including averaging of the kinetics, was carried out by means of a microcomputer. Parallel to the light-induced development of photosynthetic activity the kinetic changes (i. e. luminescence decrease, fluorescence rise and decrease) became more prominent and transitory secondary peaks appeared. For both plants the succession of the kinetic characteristics was the same; it only differed in the time of appearance. The kinetics are discussed according to interpretations given in literature. The method is proposed as a tool to quickly characterize certain damages of the photosynthetic system in different plants.

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Published

2015-12-17

Issue

Vol. 25 No. 3 (1986): VITIS

Section

Article

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