In vitro phosphorylation of plant plasma membrane proteins in response to the proteinase inhibitor inducing factor.

Details

Serval ID
serval:BIB_1A83CF8AA570
Type
Article: article from journal or magazin.
Collection
Publications
Title
In vitro phosphorylation of plant plasma membrane proteins in response to the proteinase inhibitor inducing factor.
Journal
Proceedings of the National Academy of Sciences of the United States of America
Author(s)
Farmer E.E., Pearce G., Ryan C.A.
ISSN
0027-8424 (Print)
ISSN-L
0027-8424
Publication state
Published
Issued date
1989
Volume
86
Number
5
Pages
1539-1542
Language
english
Abstract
A polygalacturonide purified from a tomato leaf pectic polysaccharide that induces the systemic synthesis of proteinase inhibitors in tomato plants enhances the phosphorylation of specific proteins in plasma membrane fractions isolated from tomato and potato leaves. In tomato plasma membranes, two proteins of 34 and 29 kDa show enhanced phosphorylation in response to the polyuronide. In potato plasma membranes, only a protein of 34 kDa exhibited enhanced phosphorylation due to the polyuronide. A noncarbohydrate class of proteinase inhibitor inducing factor, recently identified by workers in this laboratory, resulted in the in vitro hyperphosphorylation of a family of proteins of approximately 27 kDa. The phosphorylation of specific polypeptides in leaves in response to the same factors that induce the expression of proteinase inhibitor genes suggests that protein kinases may play an important role in the mechanism of signal transduction leading to defense gene expression.
Pubmed
Web of science
Open Access
Yes
Create date
24/01/2008 20:05
Last modification date
20/08/2019 12:51
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