Abstract
The research conducted including its rationale: Spodoptera litura is the major pest of tomato causing significant reduction in tomato yield. Application of Plant growth promoting rhizobacteria(PGPR) prevent use of chemical fertilizer and synthetic pesticides through enhancement of plant growth and yield and induction of systemic resistance. Present investigation is an attempt to evaluate the role of PGPR, Pseudomonas putida and Rothia sp. on the physiology and yield of tomato fruit infested with the S. litura. Central methods applied: The surface sterilized seeds of tomato were inoculated with 48 h culture of P. putida and Rothia sp. At 6-7 branching stage of the plant, the larvae of S. litura at 2nd in star was used to infect the tomato plant leaves. KEY RESULTS: The S. litura infestation decreased dry weight of shoots and roots by 46% and 22%, and significant reduction was recorded in tomato fruit yield. The P. putida and Rothia sp. inoculations alleviated the adverse effects of insect infestation and resulted in 60% increase in plant biomass and 40% increase in yield over infested plants. Main conclusions including key points of discussion: PGPR: Defense appears to be mediated via increase in proline production, enhanced activities of antioxidant enzymes, stimulation in the activities of protease and polyphenol oxidases, increased contents of phenolics, protein and chlorophyll. The formulation of biopesticide involving PGPR comprise an environment friendly and sustainable approach to overcome insect infestation.
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Claims 7
Claim · model-written summary
S. litura infestation decreased tomato shoot dry weight by 46%
- Taxon
- tomato
Solanum lycopersicumt0 - Organ / stage
- shootse1
- Treatment
- S. litura infestatione1
- Interactor
- S. litura
Spodoptera liturae1pest - Outcome
- dry weight of shoots and rootse1
- Direction
- decreasede1
- Value
- 46%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Plant defence induced by PGPR against Spodoptera litura in tomato (Solanum lycopersicum L.)”
e1“The S. litura infestation decreased dry weight of shoots and roots by 46% and 22%”
Claim · model-written summary
S. litura infestation decreased tomato root dry weight by 22%
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- rootse1
- Treatment
- S. litura infestatione1
- Interactor
- S. lituraSpodoptera liturae1pest
- Outcome
- dry weight of shoots and rootse1
- Direction
- decreasede1
- Value
- 22%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Plant defence induced by PGPR against Spodoptera litura in tomato (Solanum lycopersicum L.)”
e1“The S. litura infestation decreased dry weight of shoots and roots by 46% and 22%”
Claim · model-written summary
S. litura infestation caused a significant reduction in tomato fruit yield
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- S. litura infestatione1
- Interactor
- S. lituraSpodoptera liturae1pest
- Outcome
- tomato fruit yielde2
- Direction
- reductione2
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The S. litura infestation decreased dry weight of shoots and roots by 46% and 22%”
e2“significant reduction was recorded in tomato fruit yield”
Claim · model-written summary
P. putida and Rothia sp. inoculation increased tomato plant biomass by 60% over infested plants
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- P. putida and Rothia sp. inoculationse3
- Interactor
- insecte3pest
- Second interactor
- P. putida
Pseudomonas putidae3biocontrol_agent - Outcome
- plant biomasse3
- Direction
- increasee3
- Value
- 60%e3
- Comparator
- infested plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Plant defence induced by PGPR against Spodoptera litura in tomato (Solanum lycopersicum L.)”
e3“The P. putida and Rothia sp. inoculations alleviated the adverse effects of insect infestation and resulted in 60% increase in plant biomass and 40% increase in yield over infested plants”
Claim · model-written summary
P. putida and Rothia sp. inoculation increased tomato yield by 40% over infested plants
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- P. putida and Rothia sp. inoculationse3
- Interactor
- insecte3pest
- Second interactor
- P. putidaPseudomonas putidae3biocontrol_agent
- Outcome
- yielde3
- Direction
- increasee3
- Value
- 40%e3
- Comparator
- infested plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Plant defence induced by PGPR against Spodoptera litura in tomato (Solanum lycopersicum L.)”
e3“The P. putida and Rothia sp. inoculations alleviated the adverse effects of insect infestation and resulted in 60% increase in plant biomass and 40% increase in yield over infested plants”
Claim · model-written summary
PGPR-induced tomato defense against S. litura appears to be mediated via proline
- Taxon
- tomatoSolanum lycopersicumt0
- Compound
- prolinee4
- Outcome
- Defensee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Plant defence induced by PGPR against Spodoptera litura in tomato (Solanum lycopersicum L.)”
e4“Defense appears to be mediated via increase in proline production, enhanced activities of antioxidant enzymes, stimulation in the activities of protease and polyphenol oxidases, increased contents of phenolics, protein and chlorophyll”
Claim · model-written summary
PGPR-treated tomato showed increased contents of phenolics, protein and chlorophyll
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- contents of phenolics, protein and chlorophylle4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Plant defence induced by PGPR against Spodoptera litura in tomato (Solanum lycopersicum L.)”
e4“Defense appears to be mediated via increase in proline production, enhanced activities of antioxidant enzymes, stimulation in the activities of protease and polyphenol oxidases, increased contents of phenolics, protein and chlorophyll”
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