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2R,3R-butanediol, a bacterial volatile produced by Pseudomonas chlororaphis O6, is involved in induction of systemic tolerance to drought in Arabidopsis thaliana.
  • S. Cho, B. Kang, +7 authors Y. Kim
  • Biology, Medicine
    Molecular plant-microbe interactions : MPMI
  • 10 July 2008
TLDR
It is concluded that the bacterial volatile 2R,3R-butanediol was a major determinant in inducing resistance to drought in Arabidopsis through an SA-dependent mechanism.
GacS-dependent production of 2R, 3R-butanediol by Pseudomonas chlororaphis O6 is a major determinant for eliciting systemic resistance against Erwinia carotovora but not against Pseudomonas syringae
TLDR
This is the first report of the production of these assumed fermentation products by a pseudomonad and the role of the sensor kinase GacS in production of 2R, 3R-butanediol.
Different roles of glycine-rich RNA-binding protein7 in plant defense against Pectobacterium carotovorum, Botrytis cinerea, and tobacco mosaic viruses.
TLDR
Results provide evidence that AtGRP7 is a potent regulator in plant defense response to diverse pathogens, and suggest that the regulation of RNA metabolism by RNA-binding proteins is important for plant innate immunity.
Multiple determinants influence root colonization and induction of induced systemic resistance by Pseudomonas chlororaphis O6.
  • S. Han, A. Anderson, +5 authors Young Cheol Kim
  • Biology, Medicine
    Molecular plant pathology
  • 1 November 2006
TLDR
It is shown that multiple determinants are involved in the induction of systemic resistance, with there being a requirement for strong root colonization.
Inactivation of pqq genes of Enterobacter intermedium 60-2G reduces antifungal activity and induction of systemic resistance.
TLDR
The findings suggest that PQQ plays an important function in beneficial traits including phosphate solubilization, antifungal activity, and induced systemic resistance of E. intermedium, possibly by acting as a cofactor for several enzymes including glucose dehydrogenase.
Cloning and Expression of Pyrroloquinoline Quinone (PQQ) Genes from a Phosphate-Solubilizing Bacterium Enterobacter intermedium
TLDR
It is speculated that production of PQQ in E. coli DH5α expressing the pqq cluster activates an endogenous glucose dehydrogenase to permit gluconic acid secretion that solubilizes the insoluble phosphate.
Tobacco cultivars vary in induction of systemic resistance against Cucumber mosaic virus and growth promotion by Pseudomonas chlororaphis O6 and its gacS mutant
TLDR
The results indicate rhizobacteria-elicited induced viral resistance without a negative impact on growth but there was a differential response between cultivars.
Draft Genome Sequence of the Biocontrol Bacterium Pseudomonas putida B001, an Oligotrophic Bacterium That Induces Systemic Resistance to Plant Diseases
TLDR
Comparison of this sequence to the sequenced genome of P. putida KT2440 points to a subset of gene functions that may be related to the defense-inducing functions of strain B001.
The RpoS Sigma Factor Negatively Regulates Production of IAA and Siderophore in a Biocontrol Rhizobacterium, Pseudomonas chlororaphis O6
TLDR
Taken together, RpoS exerted regulatory control over factors important for the habitat of P. chlororaphis O6 in soil and on root surfaces and altered isozyme patterns for peroxidase, catalase and superoxide dismutase ensured protection against oxidative stress and sensitivity to hydrogen peroxide exposure.
The GacS-regulated sigma factor RpoS governs production of several factors involved in biocontrol activity of the rhizobacterium Pseudomonas chlororaphis O6.
TLDR
It is demonstrated that the stationary-phase sigma factor RpoS regulates production of several key factors involved in the biocontrol potential of P. chlororaphis O6, some independently of the global regulator GacS.
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