Activation of the Jasmonic Acid Plant Defence Pathway Alters the Composition of Rhizosphere Bacterial Communities

被引:139
作者
Carvalhais, Lilia C. [1 ]
Dennis, Paul G. [2 ,3 ]
Badri, Dayakar V. [4 ,5 ]
Tyson, Gene W. [2 ,3 ]
Vivanco, Jorge M. [4 ,5 ]
Schenk, Peer M. [1 ]
机构
[1] Univ Queensland, Sch Agr & Food Sci, Brisbane, Qld, Australia
[2] Univ Queensland, Sch Chem & Mol Biosci, Australian Ctr Ecogen, Brisbane, Qld, Australia
[3] Univ Queensland, Adv Water Management Ctr, Brisbane, Qld, Australia
[4] Colorado State Univ, Dept Hort & Landscape Architecture, Ft Collins, CO 80523 USA
[5] Colorado State Univ, Ctr Rhizosphere Biol, Ft Collins, CO 80523 USA
来源
PLOS ONE | 2013年 / 8卷 / 02期
基金
美国国家科学基金会; 澳大利亚研究理事会;
关键词
ARABIDOPSIS-THALIANA; ANTIHERBIVORE DEFENSE; RESOURCE AVAILABILITY; GENE-EXPRESSION; RESISTANCE; SOIL; FLAVONOIDS; SPHAERICUS; RESPONSES; PROTEINS;
D O I
10.1371/journal.pone.0056457
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Jasmonic acid (JA) signalling plays a central role in plant defences against necrotrophic pathogens and herbivorous insects, which afflict both roots and shoots. This pathway is also activated following the interaction with beneficial microbes that may lead to induced systemic resistance. Activation of the JA signalling pathway via application of methyl jasmonate (MeJA) alters the composition of carbon containing compounds released by roots, which are implicated as key determinants of rhizosphere microbial community structure. In this study, we investigated the influence of the JA defence signalling pathway activation in Arabidopsis thaliana on the structure of associated rhizosphere bacterial communities using 16S rRNA gene amplicon pyrosequencing. Application of MeJA did not directly influence bulk soil microbial communities but significant changes in rhizosphere community composition were observed upon activation of the jasmonate signalling pathway. Our results suggest that JA signalling may mediate plant-bacteria interactions in the soil upon necrotrophic pathogen and herbivorous insect attacks.
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页数:5
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