Interactions Between Bacillus Spp., Pseudomonas Spp. and Cannabis sativa Promote Plant Growth

Plant growth-promoting rhizobacteria (PGPR) deploy several mechanisms to improve plant health, growth and yield. The aim of this study was to evaluate the efficacy of two Pseudomonas spp. strains and three Bacillus spp. strains used as single treatments and in consortia to improve the yield of Canna...

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Main Authors: Dominique Comeau, Carole Balthazar, Amy Novinscak, Nadia Bouhamdani, David L. Joly, Martin Filion
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-09-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2021.715758/full
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author Dominique Comeau
Carole Balthazar
Amy Novinscak
Nadia Bouhamdani
David L. Joly
Martin Filion
author_facet Dominique Comeau
Carole Balthazar
Amy Novinscak
Nadia Bouhamdani
David L. Joly
Martin Filion
author_sort Dominique Comeau
collection DOAJ
description Plant growth-promoting rhizobacteria (PGPR) deploy several mechanisms to improve plant health, growth and yield. The aim of this study was to evaluate the efficacy of two Pseudomonas spp. strains and three Bacillus spp. strains used as single treatments and in consortia to improve the yield of Cannabis sativa and characterize the impact of these treatments on the diversity, structure and functions of the rhizosphere microbiome. Herein, we demonstrate a significant C. sativa yield increase up to 70% when inoculated with three different Pseudomonas spp./Bacillus spp. consortia but not with single inoculation treatments. This growth-promoting effect was observed in two different commercial soil substrates commonly used to grow cannabis: Promix and Canna coco. Marker-based genomic analysis highlighted Bacillus spp. as the main modulator of the rhizosphere microbiome diversity and Pseudomonas spp. as being strongly associated with plant growth promotion. We describe an increase abundance of predicted PGPR metabolic pathways linked with growth-promoting interactions in C. sativa.
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spelling doaj.art-3d58414a220f4516b37465f5c629e0222022-12-21T21:26:02ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2021-09-011210.3389/fmicb.2021.715758715758Interactions Between Bacillus Spp., Pseudomonas Spp. and Cannabis sativa Promote Plant GrowthDominique Comeau0Carole Balthazar1Amy Novinscak2Nadia Bouhamdani3David L. Joly4Martin Filion5Department of Biology, University of Moncton, Moncton, NB, CanadaDepartment of Biology, University of Moncton, Moncton, NB, CanadaResearch and Development Centre, Agriculture and Agri-Food Canada, Agassiz, BC, CanadaDepartment of Chemistry and Biochemistry, University of Moncton, Moncton, NB, CanadaDepartment of Biology, University of Moncton, Moncton, NB, CanadaResearch and Development Centre, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC, CanadaPlant growth-promoting rhizobacteria (PGPR) deploy several mechanisms to improve plant health, growth and yield. The aim of this study was to evaluate the efficacy of two Pseudomonas spp. strains and three Bacillus spp. strains used as single treatments and in consortia to improve the yield of Cannabis sativa and characterize the impact of these treatments on the diversity, structure and functions of the rhizosphere microbiome. Herein, we demonstrate a significant C. sativa yield increase up to 70% when inoculated with three different Pseudomonas spp./Bacillus spp. consortia but not with single inoculation treatments. This growth-promoting effect was observed in two different commercial soil substrates commonly used to grow cannabis: Promix and Canna coco. Marker-based genomic analysis highlighted Bacillus spp. as the main modulator of the rhizosphere microbiome diversity and Pseudomonas spp. as being strongly associated with plant growth promotion. We describe an increase abundance of predicted PGPR metabolic pathways linked with growth-promoting interactions in C. sativa.https://www.frontiersin.org/articles/10.3389/fmicb.2021.715758/fullcannabisplant growth promotionrhizospherepseudomonasbacillus
spellingShingle Dominique Comeau
Carole Balthazar
Amy Novinscak
Nadia Bouhamdani
David L. Joly
Martin Filion
Interactions Between Bacillus Spp., Pseudomonas Spp. and Cannabis sativa Promote Plant Growth
Frontiers in Microbiology
cannabis
plant growth promotion
rhizosphere
pseudomonas
bacillus
title Interactions Between Bacillus Spp., Pseudomonas Spp. and Cannabis sativa Promote Plant Growth
title_full Interactions Between Bacillus Spp., Pseudomonas Spp. and Cannabis sativa Promote Plant Growth
title_fullStr Interactions Between Bacillus Spp., Pseudomonas Spp. and Cannabis sativa Promote Plant Growth
title_full_unstemmed Interactions Between Bacillus Spp., Pseudomonas Spp. and Cannabis sativa Promote Plant Growth
title_short Interactions Between Bacillus Spp., Pseudomonas Spp. and Cannabis sativa Promote Plant Growth
title_sort interactions between bacillus spp pseudomonas spp and cannabis sativa promote plant growth
topic cannabis
plant growth promotion
rhizosphere
pseudomonas
bacillus
url https://www.frontiersin.org/articles/10.3389/fmicb.2021.715758/full
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