Abstract
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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Claims 5
Claim · model-written summary
Three Pseudomonas and Bacillus consortia increased Cannabis yield up to 70%, unlike single inoculations.
- Taxon
- C. sativa
Cannabis sativae0 - Treatment
- three different Pseudomonas spp./ Bacillus spp. consortiae0
- Interactor
- Pseudomonas spp.
Pseudomonase0symbionte1 - Outcome
- C. sativa yielde0
- Direction
- increasee0
- Value
- 70%e0
- Comparator
- single inoculation treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant C. sativa yield increase up to 70% when inoculated with three different Pseudomonas spp./ Bacillus spp. consortia but not with single inoculation treatments”
e1“improve the yield of Cannabis sativa and characterize the impact of these treatments on the diversity, structure and functions of the rhizosphere microbiome”
Claim · model-written summary
Single strain inoculations did not increase Cannabis yield.
- Taxon
- C. sativaCannabis sativae0
- Treatment
- single inoculation treatmentse0
- Outcome
- C. sativa yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant C. sativa yield increase up to 70% when inoculated with three different Pseudomonas spp./ Bacillus spp. consortia but not with single inoculation treatments”
Claim · model-written summary
Bacillus was the main modulator of rhizosphere microbiome diversity.
- Taxon
- Cannabis sativaCannabis sativat0
- Interactor
- Bacillus spp.e0symbiont
- Outcome
- rhizosphere microbiome diversitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Marker-based genomic analysis highlighted Bacillus spp. as the main modulator of the rhizosphere microbiome diversity”
t0“Cannabis sativa”
Claim · model-written summary
Pseudomonas was strongly associated with plant growth promotion.
- Taxon
- Cannabis sativaCannabis sativat0
- Interactor
- Pseudomonas spp.Pseudomonase0symbiont
- Outcome
- plant growth promotione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pseudomonas spp. as being strongly associated with plant growth promotion”
t0“Cannabis sativa”
Claim · model-written summary
Predicted growth promoting bacterial pathways were more abundant in the Cannabis rhizosphere.
- Taxon
- C. sativaCannabis sativae0
- Outcome
- predicted PGPR metabolic pathwayse0
- Direction
- increase abundancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We describe an increase abundance of predicted PGPR metabolic pathways linked with growth-promoting interactions in C. sativa”
The same questions in other papers
inoculation · yield · Cannabis sativaPositive and negative results
1 in the opposite direction
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.