Abstract
The role of ethylene in jasmonate-promoted senescence of detached rice leaves was investigated. Ethylene production in methyl jasmonate-treated leaf segments of rice was lower than in the control leaves. Treatment of leaf segments with silver nitrate or/and silver thiosulfate, inhibitors of ethylene action, inhibited methyl jasmonate-, jasmonic acid-, linolenic acid-, and abscisic acid-promoted senescence of detached leaves. We suggest that an increase in ethylene sensitivity, but not ethylene level, is the initial event triggering the enhanced senescence by jasmonates of detached rice leaves.
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Abbreviations
- JA:
-
jasmonic acid
- MJ:
-
methyl jasmonate
- STS:
-
silver thiosulfate
- ABA:
-
abscisic acid
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Tsai, F.Y., Hung, K.T. & Kao, C.H. An increase in ethylene sensitivity is associated with jasmonate-promoted senescence of detached rice leaves. J Plant Growth Regul 15, 197–200 (1996). https://doi.org/10.1007/BF00190584
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DOI: https://doi.org/10.1007/BF00190584