Reference : Insights into the Defense-Related Events Occuring in Plant Cells Following Perception...
Scientific journals : Article
Life sciences : Biochemistry, biophysics & molecular biology
http://hdl.handle.net/2268/27549
Insights into the Defense-Related Events Occuring in Plant Cells Following Perception of Surfactin-Type Lipopeptide from Bacillus subtilis
English
Jourdan, Emmanuel [Université de Liège - ULg > > Centre Wallon de biologie industrielle >]
Henry, Guillaume [Université de Liège - ULG > > CWBI > > >]
Duby, F. [Université de Liège - ULG > Sciences de la Vie > Biologie Moléculaire et Biotechnologie Végétales > >]
Dommes, Jacques mailto [Université de Liège - ULg > Département des sciences de la vie > Biologie moléculaire et biotechnologie végétales >]
Barthelemy, Jean-Paul mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
Thonart, Philippe mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech - Biochimie et microbiologie industrielles >]
Ongena, MARC mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
2009
Molecular Plant-Microbe Interactions [=MPMI]
American Phytopathological Society
22
4
456-468
Yes (verified by ORBi)
International
0894-0282
St Paul
MN
[en] Bacillus subtilis
[en] Multiple strains of Bacillus subtilis were demonstrated to stimulate plant defense responses, and cyclic lipopeptides may be involved in the elicitation of this induced systemic resistance phenomenon. Here, we further investigated molecular events underlying the interaction between wuch lipopeptides and plant cells. Addition of surfactin but not fengycin or iturin in the micromolar range to tobacco cell suspensions induced defense-related early events such as extracellular medium alkalinization coupled with ion fluxes and reactive oxygen species production. Surfactin also stimulated the defense enzymes phenylalanine ammonia lyase and lipoxygenase and modified the pattern of phenolics produced by the elicited cells. The occurence of these surfactin-elicited early events is closely related to Ca2+ influx and dynamic changes in protein phosphorylation but is not associed with any marked phytotoxicity or adverse effect on the integrity and growth potential of the treated tobacco cells.
Researchers ; Students
http://hdl.handle.net/2268/27549
10.1094/MPMI-22-4-0456

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