Induced systemic resistance against Pseudomonas syringae pv.maculicola by a long chain bacterial volatile emitted from Paenibacillus polymyxa in Arabidopsis thaliana
Some strains of plant growth-promoting rhizobacteria (PGPR) elicit induced systemic resistance (ISR). Previously, volatile organic compounds (VOCs), including acetoin and 2,3-butanediol, emitted from PGPR were identified as bacterial determinants of ISR. We screened for ISR using a microtiter plate and I-plate bioassay in which seedlings were challenged with the pathogen Pseudomonas syringae pv. maculicola ES4326 in the presence of bacterial volatiles. To investigate the induction of ISR signaling by the VOCs emitted from the reference strain, GB03, and test strain, Paenibacillus polymyxa E681 which showed strong capacity on ISR and plant growth promotion under in vitro and field conditions. To identify plant signaling pathways involved, we screened Arabidopsis plants transformed with PR1:GUS and PDF1.2:GUS, indicators of salicylic acid and ethylene signaling, respectively.
Moharaed A. Farag Hyo Bee Park Soo Hyun Lee Joseph W. Kloepper Choong-Min Ryu
Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt Laboratory of Microbial Genomics, Industrial Biotechnology and Bioenergy Research Center,KRIBB, Daej Department of Entomology & Plant Pathology, Auburn University Auburn, Alabama 36849 USA
国际会议
The 2nd Asian PGPR Conference(第二届亚洲植物促生根际细菌会议)
北京
英文
326-332
2011-08-21（万方平台首次上网日期，不代表论文的发表时间）