Article (Scientific journals)
Insights into the Defense-Related Events Occuring in Plant Cells Following Perception of Surfactin-Type Lipopeptide from Bacillus subtilis
Jourdan, Emmanuel; Henry, Guillaume; Duby, F. et al.
2009In Molecular Plant-Microbe Interactions, 22 (4), p. 456-468
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Keywords :
Bacillus subtilis
Abstract :
[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.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Jourdan, Emmanuel ;  Université de Liège - ULiège > Centre Wallon de biologie industrielle
Henry, Guillaume;  Université de Liège - ULiège > CWBI
Duby, F.;  Université de Liège - ULiège > Sciences de la Vie > Biologie Moléculaire et Biotechnologie Végétales
Dommes, Jacques ;  Université de Liège - ULiège > Département des sciences de la vie > Biologie moléculaire et biotechnologie végétales
Barthelemy, Jean-Paul ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech
Thonart, Philippe ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech - Biochimie et microbiologie industrielles
Ongena, MARC ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech
Language :
English
Title :
Insights into the Defense-Related Events Occuring in Plant Cells Following Perception of Surfactin-Type Lipopeptide from Bacillus subtilis
Publication date :
2009
Journal title :
Molecular Plant-Microbe Interactions
ISSN :
0894-0282
eISSN :
1943-7706
Publisher :
American Phytopathological Society, St Paul, United States - Minnesota
Volume :
22
Issue :
4
Pages :
456-468
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 05 November 2009

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