Abstract
Modern sustainable agricultural practices prefer to use biological agents for plant growth promotion, biocontrol and bioremediation as these are cost effective and eco-friendly. Our present study aims to investigate the effects of direct inoculation of selected consortia on plants to study its effects on supporting plant growth in the presence of root pathogen Sclerotium rolfsii and organophosphate pesticides Malathion (ML) and Methyl Parathion (MP). Candidate Plant Growth Promoting Microbial (PGPM) isolates chosen for the study are two bacterial isolates (PGPM2 a diazotrophic bacterium, PGPM9 a fluorescent Pseudomonad) and one fungal species (T103 a biocontrol fungus), originating from native agricultural fields of western U.P., India. Host plants inoculated with individual species showed a distributed growth enhancement pattern i.e., while isolate T103 improved root biomass, isolate PGPM9 enriched photosynthetic pigment content and isolate PGPM2 expanded root and shoot lengths. It appeared as though individual isolates showed a preference to enhance certain parameters over the other rather than exhibiting a uniform increment in all growth parameters. This preference to specific growth parameter over the other waned off in consortium studies where Sorghum bicolor inoculated with the consortium registered almost 2-fold increase in all parameters viz., root length, shoot length and overall biomass (root, shoot and total biomass) along with 23% rise in total chlorophyll content as compared to un-inoculated control. Selected consortia combination was able to provide better growth promotion in presence of pathogen Sclerotium rolfsii registering 58% increase in total biomass content while individual inoculation of biocontrol fungus T103 showed only 36% improvement. Selected consortia were also effective in plant growth promotion in presence of organophosphate pesticides ML and MP. More than two fold amplification was registered in all roots and shoot growth parameters studied when consortia was provided with ML and 28% increase was recorded when MP treatment was countered with consortia inoculation. All these results affirms our hypothesis that synergistic action of carefully selected PGPMs can escalate the benefits of plant growth promotion even in presence of pathogen and pesticide, hence this consortia may be a valuable option for sustained plant growth in modern agriculture systems.
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Claims 9
Claim · model-written summary
T103 improved root biomass in host plants.
- Taxon
- Sorghum bicolor
Sorghum bicolore1 - Treatment
- isolate T103e0
- Interactor
- T103e0symbiont
- Outcome
- root biomasse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“isolate T103 improved root biomass”
t0“Native PGPM Consortium: A Beneficial Solution to Support Plant Growth in the Presence of Phytopathogens and Residual Organophosphate Pesticides”
e1“Sorghum bicolor inoculated with the consortium registered almost 2-fold increase in all parameters viz., root length, shoot length and overall biomass (root, shoot and total biomass) along with 23% rise in total chlorophyll content as compared to un-inoculated control”
Claim · model-written summary
PGPM9 increased photosynthetic pigment content.
- Taxon
- Sorghum bicolorSorghum bicolore1
- Treatment
- isolate PGPM9e0
- Interactor
- PGPM9e0symbiont
- Outcome
- photosynthetic pigment contente0
- Direction
- enrichede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“isolate PGPM9 enriched photosynthetic pigment content”
t0“Native PGPM Consortium: A Beneficial Solution to Support Plant Growth in the Presence of Phytopathogens and Residual Organophosphate Pesticides”
e1“Sorghum bicolor inoculated with the consortium registered almost 2-fold increase in all parameters viz., root length, shoot length and overall biomass (root, shoot and total biomass) along with 23% rise in total chlorophyll content as compared to un-inoculated control”
Claim · model-written summary
PGPM2 increased root and shoot lengths.
- Taxon
- Sorghum bicolorSorghum bicolore1
- Treatment
- isolate PGPM2e0
- Interactor
- PGPM2e0symbiont
- Outcome
- root and shoot lengthse0
- Direction
- expandede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“isolate PGPM2 expanded root and shoot lengths”
t0“Native PGPM Consortium: A Beneficial Solution to Support Plant Growth in the Presence of Phytopathogens and Residual Organophosphate Pesticides”
e1“Sorghum bicolor inoculated with the consortium registered almost 2-fold increase in all parameters viz., root length, shoot length and overall biomass (root, shoot and total biomass) along with 23% rise in total chlorophyll content as compared to un-inoculated control”
Claim · model-written summary
Consortium inoculation almost doubled sorghum root and shoot lengths and biomass relative to uninoculated controls.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Treatment
- inoculated with the consortiume0
- Outcome
- root length, shoot length and overall biomasse0
- Direction
- increasee0
- Value
- almost 2-folde0
- Comparator
- un-inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor inoculated with the consortium registered almost 2-fold increase in all parameters viz., root length, shoot length and overall biomass (root, shoot and total biomass) along with 23% rise in total chlorophyll content as compared to un-inoculated control”
t0“Native PGPM Consortium: A Beneficial Solution to Support Plant Growth in the Presence of Phytopathogens and Residual Organophosphate Pesticides”
Claim · model-written summary
Consortium inoculation increased total chlorophyll 23% relative to uninoculated controls.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Treatment
- inoculated with the consortiume0
- Outcome
- total chlorophyll contente0
- Direction
- risee0
- Value
- 23%e0
- Comparator
- un-inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum bicolor inoculated with the consortium registered almost 2-fold increase in all parameters viz., root length, shoot length and overall biomass (root, shoot and total biomass) along with 23% rise in total chlorophyll content as compared to un-inoculated control”
t0“Native PGPM Consortium: A Beneficial Solution to Support Plant Growth in the Presence of Phytopathogens and Residual Organophosphate Pesticides”
Claim · model-written summary
Consortium inoculation increased biomass 58% in the presence of Sclerotium rolfsii.
- Taxon
- Sorghum bicolorSorghum bicolore1
- Treatment
- Selected consortia combinatione0
- Interactor
- Sclerotium rolfsii
Agroathelia rolfsiie0pathogen - Outcome
- total biomass contente0
- Direction
- increasee0
- Value
- 58%e0
- Comparator
- individual inoculation of biocontrol fungus T103e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selected consortia combination was able to provide better growth promotion in presence of pathogen Sclerotium rolfsii registering 58% increase in total biomass content while individual inoculation of biocontrol fungus T103 showed only 36% improvement”
t0“Native PGPM Consortium: A Beneficial Solution to Support Plant Growth in the Presence of Phytopathogens and Residual Organophosphate Pesticides”
e1“Sorghum bicolor inoculated with the consortium registered almost 2-fold increase in all parameters viz., root length, shoot length and overall biomass (root, shoot and total biomass) along with 23% rise in total chlorophyll content as compared to un-inoculated control”
Claim · model-written summary
T103 alone improved biomass 36% under pathogen pressure.
- Taxon
- Sorghum bicolorSorghum bicolore1
- Treatment
- inoculation of biocontrol fungus T103e0
- Interactor
- T103e0biocontrol_agent
- Outcome
- improvemente0
- Direction
- improvemente0
- Value
- 36%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“individual inoculation of biocontrol fungus T103 showed only 36% improvement”
t0“Native PGPM Consortium: A Beneficial Solution to Support Plant Growth in the Presence of Phytopathogens and Residual Organophosphate Pesticides”
e1“Sorghum bicolor inoculated with the consortium registered almost 2-fold increase in all parameters viz., root length, shoot length and overall biomass (root, shoot and total biomass) along with 23% rise in total chlorophyll content as compared to un-inoculated control”
Claim · model-written summary
Consortium plus Malathion more than doubled root and shoot growth parameters.
- Taxon
- Sorghum bicolorSorghum bicolore1
- Treatment
- consortia was provided with MLe0
- Outcome
- roots and shoot growth parameterse0
- Direction
- amplificatione0
- Value
- More than two folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“More than two fold amplification was registered in all roots and shoot growth parameters studied when consortia was provided with ML”
t0“Native PGPM Consortium: A Beneficial Solution to Support Plant Growth in the Presence of Phytopathogens and Residual Organophosphate Pesticides”
e1“Sorghum bicolor inoculated with the consortium registered almost 2-fold increase in all parameters viz., root length, shoot length and overall biomass (root, shoot and total biomass) along with 23% rise in total chlorophyll content as compared to un-inoculated control”
Claim · model-written summary
Consortium with methyl parathion increased growth 28%.
- Taxon
- Sorghum bicolorSorghum bicolore1
- Treatment
- MP treatment was countered with consortia inoculatione0
- Outcome
- increasee0
- Direction
- increasee0
- Value
- 28%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“28% increase was recorded when MP treatment was countered with consortia inoculation”
t0“Native PGPM Consortium: A Beneficial Solution to Support Plant Growth in the Presence of Phytopathogens and Residual Organophosphate Pesticides”
e1“Sorghum bicolor inoculated with the consortium registered almost 2-fold increase in all parameters viz., root length, shoot length and overall biomass (root, shoot and total biomass) along with 23% rise in total chlorophyll content as compared to un-inoculated control”
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