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Overexpression of L-type lectin-like protein kinase 1 confers pathogen resistance and regulates salinity response in Arabidopsis thaliana.
- Source :
-
Plant science : an international journal of experimental plant biology [Plant Sci] 2013 Apr; Vol. 203-204, pp. 98-106. Date of Electronic Publication: 2013 Jan 14. - Publication Year :
- 2013
-
Abstract
- Plant receptor-like protein kinases are thought to be involved in various cellular processes mediated by signal transduction pathways. There are about 45 lectin receptor kinases in Arabidopsis, but only a few have been studied. Here, we investigated the effect of the disruption and overexpression of a plasma membrane-localized L-type lectin-like protein kinase 1, AtLPK1 (At4g02410), on plant responses to abiotic and biotic stress. Expression of AtLPK1 was strongly induced by abscisic acid, methyl jasmonate, salicylic acid and stress treatments. Overexpression of AtLPK1 in Arabidopsis resulted in enhanced seed germination and cotyledon greening under high salinity condition, while antisense transgenic lines were more sensitive to salt stress. Activity of three abiotic stress responsive genes, RD29A, RD29B and COR15A, was elevated in AtLPK1-overexpressing plants than that in wild type (WT) plants with salt treatment, whereas the transcript level of these genes in antisense plants decreased compared with WT. Furthermore, AtLPK1-overexpressing plants displayed increased resistance to infection by Botrytis cinerea and exhibited stronger expression of a group of defense-related genes than did WT. The data implicates AtLPK1 plays essential roles at both abiotic and biotic stress response in Arabidopsis thaliana.<br /> (Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.)
- Subjects :
- Abscisic Acid pharmacology
Acetates pharmacology
Arabidopsis genetics
Arabidopsis immunology
Arabidopsis physiology
Arabidopsis Proteins genetics
Arabidopsis Proteins metabolism
Botrytis pathogenicity
Cotyledon enzymology
Cotyledon genetics
Cotyledon immunology
Cotyledon physiology
Cyclopentanes pharmacology
Disease Resistance
Droughts
Gene Expression
Gene Expression Regulation, Plant
Germination
Mutation
Oxylipins pharmacology
Plant Diseases microbiology
Plant Growth Regulators pharmacology
Plants, Genetically Modified
Protein Kinases metabolism
Recombinant Fusion Proteins
Salicylic Acid pharmacology
Salinity
Seeds enzymology
Seeds genetics
Seeds immunology
Seeds physiology
Sodium Chloride pharmacology
Arabidopsis enzymology
Plant Diseases immunology
Protein Kinases genetics
Stress, Physiological
Subjects
Details
- Language :
- English
- ISSN :
- 1873-2259
- Volume :
- 203-204
- Database :
- MEDLINE
- Journal :
- Plant science : an international journal of experimental plant biology
- Publication Type :
- Academic Journal
- Accession number :
- 23415333
- Full Text :
- https://doi.org/10.1016/j.plantsci.2012.12.019