Document Detail

Initiation of Ripening in Bartlett Pear with an Antiauxin alpha(p-Chlorophenoxy)isobutyric Acid.
MedLine Citation:
PMID:  16658566     Owner:  NLM     Status:  PubMed-not-MEDLINE    
A vacuum infiltration technique was used to apply an anti-auxin, alpha-(p-chlorophenoxy) isobutyric acid to mature green pears (Pyrus communis var. Bartlett). Application of alpha-(p-chlorophenoxy) isobutyric acid, at 0.02, 0.2, and 2.0 mm progressively accelerated the onset of chlorophyll degradation, softening, and CO(2) evolution. The action of alpha(p-chlorophenoxy) isobutyric acid is apparently independent of ethylene, since the auxin analogue depressed ethylene evolution and could overcome ethylene deficiency in fruit ripening under hypobaric conditions.The auxin analogue decreased the Michaelis constant of indoleacetic acid oxidase in vitro, suggesting that the antiauxin action of alpha-(p-chlorophenoxy) isobutyric acid is the acceleration in the breakdown of endogenous auxins in fruit and subsequently the initiation of ripening.
C Frenkel; N F Haard
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plant physiology     Volume:  52     ISSN:  0032-0889     ISO Abbreviation:  Plant Physiol.     Publication Date:  1973 Oct 
Date Detail:
Created Date:  2010-06-29     Completed Date:  2010-06-29     Revised Date:  2010-09-14    
Medline Journal Info:
Nlm Unique ID:  0401224     Medline TA:  Plant Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  380-4     Citation Subset:  -    
Department of Horticulture and Forestry and Department of Food Science, Rutgers University, New Brunswick, New Jersey 08903.
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