Open AccessPHOTORESPIRATORY-INDUCED SENESCENCE OF PLANTS UNDER CONDITIONS OF LOW CARBON DIOXIDE
Author(s) -
Jack M. Widholm,
William L. Ogren
Publication year - 1969
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.63.3.668
Subject(s) - photorespiration , senescence , carbon dioxide , botany , chemistry , light intensity , oxygen , carbon fibers , biology , photosynthesis , materials science , microbiology and biotechnology , organic chemistry , physics , composite number , optics , composite material
A light-induced senescence of soybeans at low carbon dioxide concentration has been characterized and ascribed to photorespiration. It is suggested that this system can be used to screen large numbers of plants for photorespiratory-deficient individuals of photorespiratory species. Optimal conditions for this senescence include a low CO2 concentration, a temperature near 34°, high light intensity, and a high oxygen concentration.