Stimulation of ethylene production by catecholamines and phenylethylamine in potato cell suspension cultures |
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| Authors: | Yao-Ren Dai Paula J Michaels Hector E Flores |
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| Institution: | (1) Biotechnology Institute, The Pennsylvania State University, 16802 University Park, PA, USA;(2) Plant Pathology Department, The Pennsylvania State University, 16802 University Park, PA, USA |
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| Abstract: | The catecholamines (50  M dopamine, 50 M norepinephrine and 100 M epinephrine) and phenylethylamine (200 M) were found to stimulate ethylene production in potato suspension cultures. When 100 M amino-oxyacetic acid was added together with epinephrine, ethylene release returned to control levels. The endogenous 1-aminocyclopropane-1-carboxylic acid levels were increased in parallel with the release of ethylene, suggesting that the observed effect probably occurs via regulation of aCC synthase. Our results suggest that there is a link between these naturally occurring monoamines and ethylene in plants.Abbreviations AOA
amino-oxyacetic acid
- ACC
1-aminocyclopropane-1-carboxylic acid
- DA
dopamine
- NE
norepinephrine
- E
epinephrine
- CA
catecholamines
- PEA
phenylethylamine |
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| Keywords: | ethylene catecholamine dopamine norepinephrine epinephrine phenylethylamine |
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