Abstract
The primary goal of this experiment is to examine the effectiveness of Pseudomonas aeruginosa strain PAR as a rhizobacterium that promotes plant growth in mitigating the negative effects of fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants. A total of 16 rhizobacterial strains were tested for plant growth-promoting (PGP) attributes, with isolates S1, S2, and S3 exhibiting different characteristics. Furthermore, growth kinetics studies revealed that these isolates were resilient to fluoride stress (10, 20, 40, and 80 ppm), with isolate S2 exhibiting notable resilience compared to the other two strains. Phylogenetic analysis revealed isolate S2 as P. aeruginosa strain PAR. Physiological analyses demonstrated that P. aeruginosa strain PAR had a beneficial impact on plant properties under fluoride stress, comprising seed germination, root length, shoot height, relative water content, and leaf area, the strain also impacted the buildup of glycine betaine, soluble sugar, and proline, demonstrating its significance in enhancing plant stress tolerance. In P. aeruginosa strain PAR-treated plants, chlorophyll content increased while malondialdehyde (MDA) levels decreased, indicating enhanced photosynthetic efficiency and less oxidative stress. The strain modified antioxidant enzyme action (catalase, ascorbate, glutathione reductase, peroxidase, and superoxide dismutase), which contributed to improved stress resilience. Mineral analysis revealed a decrease in sodium and fluoride concentrations while increasing magnesium, potassium, phosphorus, and iron levels, emphasizing the strain’s significance in nutrient management. Correlation and principal component analysis revealed extensive correlations between physiological and biochemical parameters, underscoring P. aeruginosa strain PAR’s multifaceted impact on plant growth and stress response. This study offers valuable information on effectively utilizing PGPR, particularly P. aeruginosa strain PAR, in fluoride-contaminated soils for sustainable agriculture. It presents a promising biological strategy to enhance crop resilience and productivity.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Isolate S2 showed notable resilience to fluoride stress compared with two other rhizobacterial isolates
- Taxon
- tomato
Solanum lycopersicume1 - Interactor
- isolate S2e2symbiont
- Outcome
- resiliencee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e2“growth kinetics studies revealed that these isolates were resilient to fluoride stress (10, 20, 40, and 80 ppm), with isolate S2 exhibiting notable resilience compared to the other two strains”
Claim · model-written summary
Phylogenetic analysis identified isolate S2 as P. aeruginosa strain PAR
- Taxon
- tomatoSolanum lycopersicume1
- Interactor
- P. aeruginosa strain PAR
Pseudomonas aeruginosae3symbiont - Outcome
- Phylogenetic analysise3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e3“Phylogenetic analysis revealed isolate S2 as P. aeruginosa strain PAR”
Claim · model-written summary
P. aeruginosa strain PAR had a beneficial impact on seed germination, root length and shoot height of tomato under fluoride stress
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. aeruginosa strain PARe4
- Interactor
- P. aeruginosa strain PARPseudomonas aeruginosae4symbiont
- Outcome
- seed germination, root length, shoot heighte4
- Direction
- beneficial impacte4
- Qualifier
- under fluoride stresse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e4“Physiological analyses demonstrated that P. aeruginosa strain PAR had a beneficial impact on plant properties under fluoride stress, comprising seed germination, root length, shoot height, relative water content, and leaf area”
Claim · model-written summary
P. aeruginosa strain PAR had a beneficial impact on relative water content and leaf area of tomato under fluoride stress
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. aeruginosa strain PARe4
- Interactor
- P. aeruginosa strain PARPseudomonas aeruginosae4symbiont
- Outcome
- relative water content, and leaf areae4
- Direction
- beneficial impacte4
- Qualifier
- under fluoride stresse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e4“Physiological analyses demonstrated that P. aeruginosa strain PAR had a beneficial impact on plant properties under fluoride stress, comprising seed germination, root length, shoot height, relative water content, and leaf area”
Claim · model-written summary
P. aeruginosa strain PAR impacted the buildup of glycine betaine, soluble sugar and proline in tomato
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. aeruginosa strain PARe4
- Outcome
- the buildup of glycine betaine, soluble sugar, and prolinee5
- Direction
- impactede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e4“Physiological analyses demonstrated that P. aeruginosa strain PAR had a beneficial impact on plant properties under fluoride stress, comprising seed germination, root length, shoot height, relative water content, and leaf area”
e5“the strain also impacted the buildup of glycine betaine, soluble sugar, and proline, demonstrating its significance in enhancing plant stress tolerance”
Claim · model-written summary
P. aeruginosa strain PAR increased chlorophyll content of tomato
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. aeruginosa strain PARe6
- Outcome
- chlorophyll contente6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e6“In P. aeruginosa strain PAR-treated plants, chlorophyll content increased while malondialdehyde (MDA) levels decreased”
Claim · model-written summary
P. aeruginosa strain PAR decreased malondialdehyde levels in tomato
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. aeruginosa strain PARe6
- Outcome
- malondialdehyde (MDA) levelse6
- Direction
- decreasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e6“In P. aeruginosa strain PAR-treated plants, chlorophyll content increased while malondialdehyde (MDA) levels decreased”
Claim · model-written summary
P. aeruginosa strain PAR modified catalase, ascorbate and glutathione reductase activity in tomato
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. aeruginosa strain PARe4
- Outcome
- catalase, ascorbate, glutathione reductasee7
- Direction
- modifiede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e4“Physiological analyses demonstrated that P. aeruginosa strain PAR had a beneficial impact on plant properties under fluoride stress, comprising seed germination, root length, shoot height, relative water content, and leaf area”
e7“The strain modified antioxidant enzyme action (catalase, ascorbate, glutathione reductase, peroxidase, and superoxide dismutase), which contributed to improved stress resilience”
Claim · model-written summary
P. aeruginosa strain PAR modified peroxidase and superoxide dismutase activity in tomato
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. aeruginosa strain PARe4
- Outcome
- peroxidase, and superoxide dismutasee7
- Direction
- modifiede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e4“Physiological analyses demonstrated that P. aeruginosa strain PAR had a beneficial impact on plant properties under fluoride stress, comprising seed germination, root length, shoot height, relative water content, and leaf area”
e7“The strain modified antioxidant enzyme action (catalase, ascorbate, glutathione reductase, peroxidase, and superoxide dismutase), which contributed to improved stress resilience”
Claim · model-written summary
P. aeruginosa strain PAR decreased sodium and fluoride concentrations in tomato
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. aeruginosa strain PARe4
- Outcome
- sodium and fluoride concentrationse7
- Direction
- decreasee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e4“Physiological analyses demonstrated that P. aeruginosa strain PAR had a beneficial impact on plant properties under fluoride stress, comprising seed germination, root length, shoot height, relative water content, and leaf area”
e7“Mineral analysis revealed a decrease in sodium and fluoride concentrations while increasing magnesium, potassium, phosphorus, and iron levels”
Claim · model-written summary
P. aeruginosa strain PAR increased magnesium, potassium and phosphorus levels in tomato
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. aeruginosa strain PARe4
- Outcome
- magnesium, potassium, phosphoruse7
- Direction
- increasinge7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e4“Physiological analyses demonstrated that P. aeruginosa strain PAR had a beneficial impact on plant properties under fluoride stress, comprising seed germination, root length, shoot height, relative water content, and leaf area”
e7“Mineral analysis revealed a decrease in sodium and fluoride concentrations while increasing magnesium, potassium, phosphorus, and iron levels”
Claim · model-written summary
P. aeruginosa strain PAR increased iron levels in tomato
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. aeruginosa strain PARe4
- Outcome
- iron levelse7
- Direction
- increasinge7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“fluoride-induced stress in tomato ( Lycopersicon esculentum Mill.) plants”
e4“Physiological analyses demonstrated that P. aeruginosa strain PAR had a beneficial impact on plant properties under fluoride stress, comprising seed germination, root length, shoot height, relative water content, and leaf area”
e7“Mineral analysis revealed a decrease in sodium and fluoride concentrations while increasing magnesium, potassium, phosphorus, and iron levels”
The same questions in other papers
Pseudomonas aeruginosa · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
Pseudomonas aeruginosa · molecular: metabolites · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
Pseudomonas aeruginosa · growth · Solanum lycopersicum (tomato)Results agree
8 papers in the same direction as this paper
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →light · physiology: pigments · Solanum lycopersicum (tomato)Results differ
44 papers in the same direction as this paper · 17 in the opposite direction
- negative
- negative
- negative
58 papers more in this group
See all 62 papers →light · physiology: oxidative · Solanum lycopersicum (tomato)Positive and negative results
6 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
8 papers more in this group
See all 12 papers →light · physiology: water · Solanum lycopersicum (tomato)Positive and negative results
7 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
8 papers more in this group
See all 12 papers →light · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Positive and negative results
14 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
16 papers more in this group
See all 20 papers →light · physiology: osmolytes · Solanum lycopersicum (tomato)Positive and negative results
17 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
18 papers more in this group
See all 22 papers →8 of 11 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.