Abstract
The Bacillus amyloliquefaciens-SN13 and model crop rice (Oryza sativa) were chosen to understand the complex regulatory networks that govern plant-PGPR interaction under salt stress. During stress, inoculation with SN13 significantly increased biomass, relative water content, proline and total soluble sugar in rice while decreased lipid peroxidation and electrolyte leakage. Extensive alterations in gene expression were also observed in rice root transcriptome under stress in the presence of SN13. Rhizobacteria induced changes in expression of a considerable number of photosynthesis, hormone, and stress-responsive genes, in addition to cell-wall and lipid metabolism-related genes under salt stress as compared to salt stress or SN13 inoculation alone, indicating its potential role in reducing the harmful effects of salinity. To validate RNA-seq data, qRT-PCR was performed for selected differentially expressed genes representing various functional categories including metabolism, regulation, stress-response, and transporters. Results indicate qualitative and quantitative differences between roots responses to SN13 under stressed and unstressed conditions. Functional expressions of OsNAM and OsGRAM in yeast showed enhanced tolerance to various abiotic stresses, indicating crucial SN13-rice interaction in imparting beneficial effects under stress. This is first detailed report on understanding molecular mechanism underlying beneficial plant-microbe interaction in any economically important model crop plant under abiotic stress.
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Claims 8
Claim · model-written summary
SN13 inoculation significantly increased rice biomass under salt stress.
- Taxon
- rice
Oryza sativae0 - Treatment
- inoculation with SN13e0
- Interactor
- SN13e0symbiont
- Outcome
- biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During stress, inoculation with SN13 significantly increased biomass, relative water content, proline and total soluble sugar in rice while decreased lipid peroxidation and electrolyte leakage.”
Claim · model-written summary
SN13 inoculation significantly increased relative water content, proline and total soluble sugar in rice under stress.
- Taxon
- riceOryza sativae0
- Treatment
- inoculation with SN13e0
- Interactor
- SN13e0symbiont
- Outcome
- relative water content, proline and total soluble sugare0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During stress, inoculation with SN13 significantly increased biomass, relative water content, proline and total soluble sugar in rice while decreased lipid peroxidation and electrolyte leakage.”
Claim · model-written summary
SN13 inoculation decreased rice lipid peroxidation and electrolyte leakage under stress.
- Taxon
- riceOryza sativae0
- Treatment
- inoculation with SN13e0
- Interactor
- SN13e0symbiont
- Outcome
- lipid peroxidation and electrolyte leakagee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During stress, inoculation with SN13 significantly increased biomass, relative water content, proline and total soluble sugar in rice while decreased lipid peroxidation and electrolyte leakage.”
Claim · model-written summary
SN13 altered gene expression in stressed rice roots.
- Taxon
- riceOryza sativae0
- Organ / stage
- roote0
- Treatment
- SN13e0
- Interactor
- SN13e0symbiont
- Outcome
- alterations in gene expressione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Extensive alterations in gene expression were also observed in rice root transcriptome under stress in the presence of SN13.”
Claim · model-written summary
SN13 changed expression of photosynthesis, hormone, stress-responsive, cell-wall and lipid-metabolism genes under salt stress relative to either condition alone.
- Taxon
- riceOryza sativat0
- Treatment
- Rhizobacteriae0
- Interactor
- RhizobacteriaHyphomicrobialese0symbiont
- Outcome
- changes in expressione0
- Comparator
- salt stress or SN13 inoculation alonee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobacteria induced changes in expression of a considerable number of photosynthesis, hormone, and stress-responsive genes, in addition to cell-wall and lipid metabolism-related genes under salt stress as compared to salt stress or SN13 inoculation alone”
t0“rice”
Claim · model-written summary
Rice root responses to SN13 differed qualitatively and quantitatively between stressed and unstressed conditions.
- Taxon
- riceOryza sativat0
- Organ / stage
- rootse0
- Interactor
- SN13e0symbiont
- Outcome
- qualitative and quantitative differences between roots responsese0
- Comparator
- stressed and unstressed conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results indicate qualitative and quantitative differences between roots responses to SN13 under stressed and unstressed conditions.”
t0“rice”
Claim · model-written summary
OsNAM expression in yeast enhanced tolerance to abiotic stresses.
- Taxon
- riceOryza sativat0
- Gene
- OsNAMe0
- Outcome
- tolerance to various abiotic stressese0
- Direction
- enhancede0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Functional expressions of OsNAM and OsGRAM in yeast showed enhanced tolerance to various abiotic stresses”
t0“rice”
Claim · model-written summary
OsGRAM expression in yeast enhanced tolerance to abiotic stresses.
- Taxon
- riceOryza sativat0
- Gene
- OsGRAMe0
- Outcome
- tolerance to various abiotic stressese0
- Direction
- enhancede0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Functional expressions of OsNAM and OsGRAM in yeast showed enhanced tolerance to various abiotic stresses”
t0“rice”
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