Promotion of plant growth by Pseudomonas fluorescens strain SS101 via novel volatile organic compounds

TY - JOUR

T1 - Promotion of plant growth by Pseudomonas fluorescens strain SS101 via novel volatile organic compounds

AU - Park, Yong-Soon

AU - Dutta, Swarnalee

AU - Ann, Mina

AU - Raaijmakers, Jos M.

AU - Park, Kyungseok

N1 - 5840, ME; Data archiving: Data archived at publisher 12 mnd AM embargo

PY - 2015

Y1 - 2015

N2 - Abstract Volatile organic compounds (VOCs) from plant growth-promoting rhizobacteria (PGPR) play key roles in modulating plant growth and induced systemic resistance (ISR) to pathogens. Despite their significance, the physiological functions of the specific VOCs produced by Pseudomonas fluorescens SS101 (Pf.SS101) have not been precisely elucidated. The effects of Pf.SS101 and its VOCs on augmentation of plant growth promotion were investigated in vitro and in planta. Significant growth promotion was observed in plants exposed Pf.SS101 under both conditions, suggesting its VOCs play a key role in promoting plant growth. Solid-phase micro-extraction (SPME) and a gas chromatography-mass spectrophotometer (GC–MS) system were used to characterize the VOCs emitted by Pf.SS101 and 11 different compounds were detected in samples inoculated this bacterium, including 13-Tetradecadien-1-ol, 2-butanone and 2-Methyl-n-1-tridecene. Application of these compounds resulted in enhanced plant growth. This study suggests that Pf.SS101 promotes the growth of plants via the release of VOCs including 13-Tetradecadien-1-ol, 2-butanone and 2-Methyl-n-1-tridecene, thus increasing understanding of the role of VOCs in plant-bacterial inter-communication.

AB - Abstract Volatile organic compounds (VOCs) from plant growth-promoting rhizobacteria (PGPR) play key roles in modulating plant growth and induced systemic resistance (ISR) to pathogens. Despite their significance, the physiological functions of the specific VOCs produced by Pseudomonas fluorescens SS101 (Pf.SS101) have not been precisely elucidated. The effects of Pf.SS101 and its VOCs on augmentation of plant growth promotion were investigated in vitro and in planta. Significant growth promotion was observed in plants exposed Pf.SS101 under both conditions, suggesting its VOCs play a key role in promoting plant growth. Solid-phase micro-extraction (SPME) and a gas chromatography-mass spectrophotometer (GC–MS) system were used to characterize the VOCs emitted by Pf.SS101 and 11 different compounds were detected in samples inoculated this bacterium, including 13-Tetradecadien-1-ol, 2-butanone and 2-Methyl-n-1-tridecene. Application of these compounds resulted in enhanced plant growth. This study suggests that Pf.SS101 promotes the growth of plants via the release of VOCs including 13-Tetradecadien-1-ol, 2-butanone and 2-Methyl-n-1-tridecene, thus increasing understanding of the role of VOCs in plant-bacterial inter-communication.

KW - Pseudomonas fluorescens SS101

KW - VOCs

KW - GC–MS

KW - 13-Tetradecadien-1-ol

KW - Plant growth promotion

KW - international

U2 - 10.1016/j.bbrc.2015.04.039

DO - 10.1016/j.bbrc.2015.04.039

M3 - Article

SN - 0006-291X

VL - 461

SP - 361

EP - 365

JO - Biochemical and Biophysical Research Communications

JF - Biochemical and Biophysical Research Communications

IS - 2

ER -