Publication Date:
1998-02-12
Description:
Abscisic acid (ABA) is the primary hormone that mediates plant responses to stresses such as cold, drought, and salinity. Single-cell microinjection experiments in tomato were used to identify possible intermediates involved in ABA signal transduction. Cyclic ADP-ribose (cADPR) was identified as a signaling molecule in the ABA response and was shown to exert its effects by way of calcium. Bioassay experiments showed that the amounts of cADPR in Arabidopsis thaliana plants increased in response to ABA treatment and before ABA-induced gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Y -- Kuzma, J -- Marechal, E -- Graeff, R -- Lee, H C -- Foster, R -- Chua, N H -- HD17484/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1997 Dec 19;278(5346):2126-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Plant Molecular Biology, Rockefeller University, 1230 York Avenue, New York, NY 10021-6399, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9405349" target="_blank"〉PubMed〈/a〉
Keywords:
Abscisic Acid/*pharmacology
;
Adenosine Diphosphate Ribose/*analogs & derivatives/metabolism/pharmacology
;
Arabidopsis/genetics/metabolism
;
Arabidopsis Proteins
;
Calcium/*metabolism/pharmacology
;
Cyclic ADP-Ribose
;
Egtazic Acid/pharmacology
;
GTP-Binding Proteins/physiology
;
Gene Expression Regulation, Plant/drug effects
;
Genes, Reporter
;
Inositol Phosphates/pharmacology
;
Lycopersicon esculentum/genetics/metabolism
;
Microinjections
;
Phosphoprotein Phosphatases/metabolism
;
Phosphorylation
;
Phytochrome/pharmacology
;
Phytochrome A
;
Plants/genetics/*metabolism
;
Plants, Genetically Modified
;
Protein Kinases/metabolism
;
*Second Messenger Systems
;
*Signal Transduction
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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