Document Detail


Differential counteraction of ethylene effects by gibberellin a(3) and n(6)-benzyladenine in senescing citrus peel.
MedLine Citation:
PMID:  16659815     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Treatment of mature citrus fruit (Citrus sinensis) with ethylene induced rapid chlorophyll destruction, a rise in respiration, a release of free amino acids, an accumulation of reducing sugars, and an appearance of phenylalanine ammonia lyase activity. Gibberellin A(3) (GA(3)) and N(6)-benzyladenine (BA) opposed the effects of ethylene on chlorophyll, amino acids, and to a lesser extent, reducing sugar levels. The ethylene-induced respiratory rise was only slightly modified by GA(3) and BA. Phenylalanine ammonia lyase activity was not affected by GA(3).The antagonism between ethylene and the senescence-delaying regulators GA(3) and BA seems to operate mainly within the chloroplast, but might not be confined to this compartment. The accumulation of reducing sugars exhibits the antagonism although it is not apparently related to the chloroplast.
Authors:
E E Goldschmidt; Y Aharoni; S K Eilati; J W Riov; S P Monselise
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plant physiology     Volume:  59     ISSN:  0032-0889     ISO Abbreviation:  Plant Physiol.     Publication Date:  1977 Feb 
Date Detail:
Created Date:  2010-06-29     Completed Date:  2010-07-06     Revised Date:  2010-09-14    
Medline Journal Info:
Nlm Unique ID:  0401224     Medline TA:  Plant Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  193-5     Citation Subset:  -    
Affiliation:
Department of Horticulture, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel.
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