Bacterial quorum sensing compounds are important modulators of microbe-plant interactions

Hartmann, Anton; Rothballer, Michael; Hense, Burkhard A.; Schröder, Peter

doi:10.3389/fpls.2014.00131

Cited by 155 publications

(101 citation statements)

References 35 publications

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“…E. toletana knot formation ability by pathogen was regained when olive was co-inoculated with P. savastanoi AHL synthase mutant (Hosni et al, 2011). It was demonstrated that plants actively participate in AHL signalling as presence of the AHLs altered expression of number of plant genes including those involved in plant defense responses and plants were shown to mimic bacterial AHLs (reviewed by Hartmann et al, 2014).…”

Section: Occurrence and Diversity Of Bacterial Endophytes In Agricultmentioning

confidence: 99%

Bacterial endophytes in agricultural crops and their role in stress tolerance: a review

Miliūtė

Buzaitė

Baniulis

et al. 2015

Zemdirbyste-Agriculture

205

112

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Bacterial endophytes are a class of endosymbiotic microorganisms widespread among plants that colonize intercellular and intracellular spaces of all plant compartments and do not cause plant disease or significant morphological changes. Plant and endophytic bacteria association includes vast diversity of bacterial taxa and plant hosts and in this review we present an overview of taxonomic composition of endophytes identified in common agricultural crops. Further, during the last decade, new aspects of the microbial diversity have emerged with application of new metagenomic analysis methods in studies of bacterial endophytes. Endophytic bacteria community structure is influenced by plant genotype, abiotic and biotic factors such as environment conditions, microbe -microbe interactions and plant -microbe interactions. Agricultural practices, such as soil tillage, irrigation, use of pesticides and fertilizers have a major effect on function and structure of soil and endophytic microbial populations. Therefore, the use of agricultural practices that maintain natural diversity of plant endophytic bacteria is becoming an important element of sustainable agriculture that could ensure plant productivity and quality of agricultural production. The diverse endophytic microbial communities play integral and unique role in the functioning of agroecosystems. Endophytic bacteria have been shown to have several beneficial effects on their host plant, including growth promoting activity, modulation of plant metabolism and phytohormone signalling that leads to adaptation to environmental abiotic or biotic stress. Use of endophytic bacteria presents a special interest for development of agricultural applications that ensure improved crop performance under cold, draught or contaminated soil stress conditions or enhanced disease resistance.

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Section: Occurrence and Diversity Of Bacterial Endophytes In Agricultmentioning

confidence: 99%

Bacterial endophytes in agricultural crops and their role in stress tolerance: a review

Miliūtė

Buzaitė

Baniulis

et al. 2015

Zemdirbyste-Agriculture

205

112

View full text Add to dashboard Cite

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“…The functions controlled by QS are highly diverse, including the horizontal transfer of plasmids in A. tumefaciens and the regulation of rhizospheric competence factors, such as antibiotic synthesis, in many biocontrol strains (e.g. Bacillus, Pseudomonas, Serratia), as well as functions that are directly implicated in plant-bacteria associations, such as virulence factors (reviewed by Hartman et al, 2014). It is not surprising, therefore, that plants are able to perceive bacterial QS molecules and respond to them with changes in gene expression and modifications in development.…”

Section: Effect Of Ahl On Plantsmentioning

confidence: 99%

Silencing the mob: disrupting quorum sensing as a means to fight plant disease

Helman

Chernin

2014

Molecular Plant Pathology

120

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Bacteria are able to sense their population's density through a cell-cell communication system, termed 'quorum sensing' (QS). This system regulates gene expression in response to cell density through the constant production and detection of signalling molecules. These molecules commonly act as auto-inducers through the up-regulation of their own synthesis. Many pathogenic bacteria, including those of plants, rely on this communication system for infection of their hosts. The finding that the countering of QS-disrupting mechanisms exists in many prokaryotic and eukaryotic organisms offers a promising novel method to fight disease. During the last decade, several approaches have been proposed to disrupt QS pathways of phytopathogens, and hence to reduce their virulence. Such studies have had varied success in vivo, but most lend promising support to the idea that QS manipulation could be a potentially effective method to reduce bacterial-mediated plant disease. This review discusses the various QS-disrupting mechanisms found in both bacteria and plants, as well as the different approaches applied artificially to interfere with QS pathways and thus protect plant health.

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“…42,43 Similar sensing of microbe-produced compounds have been reported in plants. 44 Computational techniques that facilitate the analysis of host genetics in combination with the composition and metagenomic characteristics of microbial communities may continue to identify additional novel mechanisms of host-microbe interactions.…”

Section: Challenges In Microbiology and Computational Approachesmentioning

confidence: 99%

Computational Approaches to Study Microbes and Microbiomes

et al. 2015

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Technological advances are making large-scale measurements of microbial communities commonplace. These newly acquired datasets are allowing researchers to ask and answer questions about the composition of microbial communities, the roles of members in these communities, and how genes and molecular pathways are regulated in individual community members and communities as a whole to effectively respond to diverse and changing environments. In addition to providing a more comprehensive survey of the microbial world, this new information allows for the development of computational approaches to model the processes underlying microbial systems. We anticipate that the field of computational microbiology will continue to grow rapidly in the coming years. In this manuscript we highlight both areas of particular interest in microbiology as well as computational approaches that begin to address these challenges.

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Bacterial quorum sensing compounds are important modulators of microbe-plant interactions

Cited by 155 publications

References 35 publications

Bacterial endophytes in agricultural crops and their role in stress tolerance: a review

Bacterial endophytes in agricultural crops and their role in stress tolerance: a review

Silencing the mob: disrupting quorum sensing as a means to fight plant disease

Computational Approaches to Study Microbes and Microbiomes

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