Plant growth promoting rhizobacterium Proteus vulgaris JBLS202 stimulates the seedling growth of Chinese cabbage through indole emission

Yu, Sang‐Mi; Lee, Yong Hoon

doi:10.1007/s11104-013-1652-x

Cited by 35 publications

(29 citation statements)

References 30 publications

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“…More recently, Yu and Lee (2013) have reported that volatile indole from Proteus vulgaris JBLS202 (JBLS202) stimulates the growth of Kimchi cabbage confirming the results of Blom and others (2011).…”

Section: Introductionsupporting

confidence: 79%

“…In our previous study, VOCs from JBLS202 showed a dose-dependent effect on the growth stimulation of Kimchi cabbage (Yu and Lee 2013). In the present study, we assayed the growth response of Arabidopsis by inoculating single LB agar disks (8 mm in diameter) with JBLS202.…”

Section: Vocs From Jbls202 and Synthetic Indole Promoted Arabidopsis mentioning

confidence: 93%

“…The effect of JBLS202 and synthetic indole (SigmaAldrich, USA) VOCs on the growth of Arabidopsis was assayed following the method of Yu and Lee (2013) with minor modifications. Briefly, JBLS202 was streaked on Luria-Bertani (LB) agar plates, incubated overnight at 30°C, and then the cells were harvested from the LB plates in distilled water to yield 1 9 10 7 cfu ml -1 as determined by optical density and serial dilutions with counts.…”

Section: Bacterial and Synthetic Indole Concentrationmentioning

confidence: 99%

“…However, ethylene and jasmonate signaling, which was required for rhizobacteria-mediated induction of systemic immunity in Arabidopsis thaliana, was not required for modulating rhizobacteria-mediated developmental alterations in root morphology (Zamioudis and others 2013). Indole as a VOC has been shown to positively influence growth behavior in Kimchi cabbage (Yu and Lee 2013). However, the molecular mechanisms underpinning indole-mediated plant growth promotion remain to be elucidated.…”

Section: Introductionmentioning

confidence: 99%

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Volatile Indole Produced by Rhizobacterium Proteus vulgaris JBLS202 Stimulates Growth of Arabidopsis thaliana Through Auxin, Cytokinin, and Brassinosteroid Pathways

Bhattacharyya

Mallikarjuna

Lee

2014

J Plant Growth Regul

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Volatile compounds produced by bacteria play an important role in plant and bacteria interactions. Volatiles from the rhizobacterium Proteus vulgaris JBLS202 or synthetic indole increased the fresh weight of Arabidopsis thaliana Col-0 by 74.9-80.3 %, and 48.0-56.3 %, respectively. However, exposure to volatiles from JBLS202 or indole was unable to promote growth in the mutant lines of A. thaliana defective in auxin transport (eir1), cytokinin (cre1), and brassinosteroid metabolism (cbb1), whereas growth was significantly stimulated in the ethylene-(etr1) and gibberellin-insensitive (gai1) mutants. In addition, Arabidopsis Col-0 treated with auxin, and brassinosteroid biosynthesis inhibitors was considerably arrested in growth-promoting performance by the volatiles. Moreover, exposure of Col-0 seedlings to JBLS202 or indole for 14 days resulted in overexpression of small auxin up RNA, histidine kinase1, and brassinosteroid biosynthetic cytochrome P450 genes. Overall, the results indicate that the indole emitted by JBLS202 stimulates the growth of A. thaliana through an interplay between the auxin, cytokinin, and brassinosteroid pathways. This is the first report on how bacterial indole influences the plant hormone signaling pathways.

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Section: Introductionsupporting

confidence: 79%

Section: Vocs From Jbls202 and Synthetic Indole Promoted Arabidopsis mentioning

confidence: 93%

Section: Bacterial and Synthetic Indole Concentrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Volatile Indole Produced by Rhizobacterium Proteus vulgaris JBLS202 Stimulates Growth of Arabidopsis thaliana Through Auxin, Cytokinin, and Brassinosteroid Pathways

Bhattacharyya

Mallikarjuna

Lee

2014

J Plant Growth Regul

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“…The PGP effects were largely attributed to two volatiles, namely, 3-hydroxybutan-2-one (acetoin) and 2,3-butanediol. Several other studies have examined bacterial bioactive volatile compounds that promote or suppress plant growth (Farag et al, 2006;Splivallo et al, 2007;Vespermann et al, 2007;Kai et al, , 2010Gutiérrez-Luna et al, 2010;Zou et al, 2010;Blom et al, 2011aBlom et al, , 2011bVelazquez-Becerra et al, 2011;Weise et al, 2012;Yu and Lee, 2013), but the underlying mechanisms of these effects remain largely unknown (Wenke et al, 2012b). Profiling studies in Arabidopsis seedlings provided the first insights into changes in the transcriptome and proteome elicited by exposure to bacterial VOCs (Zhang et al, 2007;Kwon et al, 2010) and revealed the importance of hormone signaling, particularly that of indole-3-acetic acid and abscisic acid (Zhang et al, 2007(Zhang et al, , 2008.…”

Section: Introductionmentioning

confidence: 99%

Dimethyl Disulfide Produced by the Naturally Associated Bacterium Bacillus sp B55 Promotes Nicotiana attenuata Growth by Enhancing Sulfur Nutrition

et al. 2013

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Bacillus sp B55, a bacterium naturally associated with Nicotiana attenuata roots, promotes growth and survival of wild-type and, particularly, ethylene (ET)-insensitive 35S-ethylene response1 (etr1) N. attenuata plants, which heterologously express the mutant Arabidopsis thaliana receptor ETR1-1. We found that the volatile organic compound (VOC) blend emitted by B55 promotes seedling growth, which is dominated by the S-containing compound dimethyl disulfide (DMDS). DMDS was depleted from the headspace during cocultivation with seedlings in bipartite Petri dishes, and 35 S was assimilated from the bacterial VOC bouquet and incorporated into plant proteins. In wild-type and 35S-etr1 seedlings grown under different sulfate (SO 4 22 ) supply conditions, exposure to synthetic DMDS led to genotype-dependent plant growth promotion effects. For the wild type, only S-starved seedlings benefited from DMDS exposure. By contrast, growth of 35S-etr1 seedlings, which we demonstrate to have an unregulated S metabolism, increased at all SO 4 22 supply rates. Exposure to B55 VOCs and DMDS rescued many of the growth phenotypes exhibited by ET-insensitive plants, including the lack of root hairs, poor lateral root growth, and low chlorophyll content. DMDS supplementation significantly reduced the expression of S assimilation genes, as well as Met biosynthesis and recycling. We conclude that DMDS by B55 production is a plant growth promotion mechanism that likely enhances the availability of reduced S, which is particularly beneficial for wild-type plants growing in S-deficient soils and for 35S-etr1 plants due to their impaired S uptake/assimilation/metabolism.

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Indole: An evolutionarily conserved influencer of behavior across kingdoms

Tomberlin

Crippen

et al. 2016

BioEssays

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Indole is a key environmental cue that is used by many organisms. Based on its biochemistry, we suggest indole is used so universally, and by such different organisms, because it derives from the metabolism of tryptophan, a resource essential for many species yet rare in nature. These properties make it a valuable, environmental cue for resources almost universally important for promoting fitness. We then describe how indole is used to coordinate actions within organisms, to influence the behavior of conspecifics and can even be used to change the behavior of species that belong to other kingdoms. Drawing on the evolutionary framework that has been developed for understanding animal communication, we show how this is diversely achieved by indole acting as a cue, a manipulative signal, and an honest signal, as well as how indole can be used synergistically to amplify information conveyed by other molecules. Clarifying these distinct functions of indole identifies patterns that transcend different kingdoms of organisms.

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Plant growth promoting rhizobacterium Proteus vulgaris JBLS202 stimulates the seedling growth of Chinese cabbage through indole emission

Cited by 35 publications

References 30 publications

Volatile Indole Produced by Rhizobacterium Proteus vulgaris JBLS202 Stimulates Growth of Arabidopsis thaliana Through Auxin, Cytokinin, and Brassinosteroid Pathways

Volatile Indole Produced by Rhizobacterium Proteus vulgaris JBLS202 Stimulates Growth of Arabidopsis thaliana Through Auxin, Cytokinin, and Brassinosteroid Pathways

Dimethyl Disulfide Produced by the Naturally Associated Bacterium Bacillus sp B55 Promotes Nicotiana attenuata Growth by Enhancing Sulfur Nutrition

Indole: An evolutionarily conserved influencer of behavior across kingdoms

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