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http://dx.doi.org/10.5423/PPJ.2012.28.2.202

Induced Systemic Drought and Salt Tolerance by Pseudomonas chlororaphis O6 Root Colonization is Mediated by ABA-independent Stomatal Closure  

Cho, Song-Mi (Department of Floriculture, Chunnam Techno College)
Kang, Beom-Ryong (Environment-Friendly Agricultural Research Institute, Jeollanamdo Agricultural Research and Extension Services)
Kim, Jeong-Jun (Agricultural Microbiology Team, National Academy of Agricultural Science, Rural Development Administration)
Kim, Young-Cheol (Institute of Environmentally-Friendly Agriculture, Department of Plant Biotechnology, Chonnam National University)
Publication Information
The Plant Pathology Journal / v.28, no.2, 2012 , pp. 202-206 More about this Journal
Abstract
Root colonization by the rhizobacterium Pseudomonas chlororaphis O6 in Arabidopsis thaliana Col-0 plants resulted in induced tolerance to drought and salinity caused by halide salt-generated ionic stress but not by osmotic stress caused by sorbitol. Stomatal apertures decreased following root colonization by P. chlororaphis O6 in both wild-type and ABA-insensitive Arabidopsis mutant plants. These results suggest that an ABA-independent stomatal closure mechanism in the guard cells of P. chlororaphis O6-colonized plants could be a key phenotype for induced systemic tolerance to drought and salt stress.
Keywords
abiotic stress; induced tolerance to environmental stress; priming; stomatal closure;
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Times Cited By Web Of Science : 2  (Related Records In Web of Science)
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