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Salicylic acid is involved in the regulation of starvation stress-induced flowering in Lemna paucicostata.
MedLine Citation:
PMID:  22429781     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The short-day plant, Lemna paucicostata (synonym Lemna aequinoctialis), was induced to flower when cultured in tap water without any additional nutrition under non-inductive long-day conditions. Flowering occurred in all three of the tested strains, and strain 6746 was the most sensitive to the starvation stress conditions. For each strain, the stress-induced flowering response was weaker than that induced by short-day treatment, and the stress-induced flowering of strain 6746 was completely inhibited by aminooxyacetic acid and l-2-aminooxy-3-phenylpropionic acid, which are inhibitors of phenylalanine ammonia-lyase. Significantly higher amounts of endogenous salicylic acid (SA) were detected in the fronds that flowered under the poor-nutrition conditions than in the vegetative fronds cultured under nutrition conditions, and exogenously applied SA promoted the flowering response. The results indicate that endogenous SA plays a role in the regulation of stress-induced flowering.
Authors:
Aya Shimakawa; Takeshi Shiraya; Yuta Ishizuka; Kaede C Wada; Toshiaki Mitsui; Kiyotoshi Takeno
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-17
Journal Detail:
Title:  Journal of plant physiology     Volume:  -     ISSN:  1618-1328     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882059     Medline TA:  J Plant Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier GmbH. All rights reserved.
Affiliation:
Graduate School of Science and Technology, Niigata University, Ikarashi, Niigata 950-2181, Japan.
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