Exploring ComQXPA quorum-sensing diversity and biocontrol potential of Bacillus spp. isolates from tomato rhizoplane

Microbial Biotechnology
A OslizloInes Mandic-Mulec

Abstract

Bacillus subtilis is a widespread and diverse bacterium t exhibits a remarkable intraspecific diversity of the ComQXPA quorum-sensing (QS) system. This manifests in the existence of distinct communication groups (pherotypes) that can efficiently communicate within a group, but not between groups. Similar QS diversity was also found in other bacterial species, and its ecological and evolutionary meaning is still being explored. Here we further address the ComQXPA QS diversity among isolates from the tomato rhizoplane, a natural habitat of B. subtilis, where these bacteria likely exist in their vegetative form. Because this QS system regulates production of anti-pathogenic and biofilm-inducing substances such as surfactins, knowledge on cell-cell communication of this bacterium within rhizoplane is also important from the biocontrol perspective. We confirm the presence of pherotype diversity within B. subtilis strains isolated from a rhizoplane of a single plant. We also show that B. subtilis rhizoplane isolates show a remarkable diversity of surfactin production and potential plant growth promoting traits. Finally, we discover that effects of surfactin deletion on biofilm formation can be strain specific and unexpected in the li...Continue Reading

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Citations

Jun 3, 2015·Molecular Plant-microbe Interactions : MPMI·M C Magno-Pérez-BryanD Romero
Feb 17, 2018·Frontiers in Microbiology·Mihael SpacapanInes Mandic-Mulec
Sep 16, 2018·Molecular Microbiology·Margarita KalamaraNicola R Stanley-Wall
Jun 25, 2019·PLoS Computational Biology·Kalinga Pavan T Silva, James Q Boedicker
Sep 23, 2016·Microbiology·Ramses Gallegos-MonterrosaÁkos T Kovács
Feb 9, 2018·Plant and Soil·Andrea Pitzschke
Apr 8, 2021·Nature Reviews. Microbiology·Sofia ArnaouteliÁkos T Kovács
Jun 10, 2021·Nature Communications·Polonca StefanicInes Mandic-Mulec

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Methods Mentioned

BETA
PCR

Software Mentioned

BLAST
comQ
MIDI ( Microbial Indentification System )
mega

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