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Thigmomorphogenesis: The relationship of mechanical perturbation to elicitor‐like activity and ethylene production
Author(s) -
Takahashi Hideyuki,
Jaffe Mordecai J.
Publication year - 1984
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.1399-3054.1984.tb06347.x
Subject(s) - elicitor , phytoalexin , phaseolus , ethylene , bioassay , botany , cotyledon , plant physiology , biology , chemistry , biochemistry , enzyme , resveratrol , genetics , catalysis
An extracellular solution obtained from bean ( Phaseolus vulgaris L. cv. Resistant Cherokee Wax) stems induced phytoalexin‐like substance and ethylene production in a soybean [ Glycine max (L.) Merr. cv. Wayne] cotyledon bioassay. The elicitor‐like activity for phytoalexin formation and ethylene production was increased by mechanical perturbation of bean stems. Moreover, the application of extracted or known elicitors to bean plants mimicked the effect of mechanical perturbation (i.e., inhibition of stem elongation and enhancement of radial growth). The effects of extract when applied exogenously, on elicitor‐like activity in the bioassay as well as stem thickening were decreased by aminoethoxyvinylglycine, an inhibitor of ethylene biosynthesis. These results suggest that elicitor‐like substances which are formed in response to mechanical perturbation contribute to the thigmomorphogenesis.