Abstract
Effects of water stress and inoculation with plant growth promoting rhizobacteria (PGPR) on antioxidant activity and photosynthetic pigments were studied in basil plants. A field experiment was conducted at the University of Zabol in Iran during 2010 growing season. The experiment laid out as split plot based on randomized complete block design with three replications. Three levels of water stress W1 = 80 (control), W2 = 60 and W3 = 40% of the field capacity (FC) as main plots and four levels of bacterial species consisting of S1 = Pseudomonades sp., S2 = Bacillus lentus, S3 = Azospirillum brasilens, S4 = combination of three bacterial species and S5 = control (without use of bacterial) as sub plots. The results revealed that water stress caused a significant change in the antioxidant activity. The highest concentration CAT and GPX activity were in W3 treatments. By increasing water stress from control to W3, chlorophyll content in leaves was increased but Fv/Fm and APX activity decreased. Application of rhizobacteria under water stress improved the antioxidant and photosynthetic pigments in basil plants. S1 = Pseudomonades sp. under water stress, significantly increased the CAT enzyme activity, but the highest GPX and APX activity and chlorophyll content in leaves under water stress were in S4 = combination of three bacterial species.
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Claims 8
Claim · model-written summary
Water stress significantly changed antioxidant activity in basil.
- Taxon
- basil (Ocimum basilicum L.)
Ocimum basilicumt0 - Treatment
- water stresse1
- Outcome
- antioxidant activitye1
- Setting
- University of Zabol in Irane0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“basil (Ocimum basilicum L.)”
e0“A field experiment was conducted at the University of Zabol in Iran during 2010 growing season”
e1“The results revealed that water stress caused a significant change in the antioxidant activity”
Claim · model-written summary
The highest CAT and GPX activity in basil occurred under the W3 water stress treatment.
- Taxon
- basil (Ocimum basilicum L.)Ocimum basilicumt0
- Treatment
- W3 treatmentse2
- Gene
- CAT and GPXe2
- Outcome
- CAT and GPX activitye2
- Direction
- higheste2
- Setting
- University of Zabol in Irane0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“basil (Ocimum basilicum L.)”
e0“A field experiment was conducted at the University of Zabol in Iran during 2010 growing season”
e2“The highest concentration CAT and GPX activity were in W3 treatments”
Claim · model-written summary
Increasing water stress from control to W3 increased chlorophyll content in basil leaves.
- Taxon
- basil (Ocimum basilicum L.)Ocimum basilicumt0
- Treatment
- increasing water stress from control to W3e3
- Outcome
- chlorophyll content in leavese3
- Direction
- increasede3
- Comparator
- controle3
- Setting
- University of Zabol in Irane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“basil (Ocimum basilicum L.)”
e0“A field experiment was conducted at the University of Zabol in Iran during 2010 growing season”
e3“By increasing water stress from control to W3, chlorophyll content in leaves was increased”
Claim · model-written summary
Increasing water stress from control to W3 decreased Fv/Fm in basil.
- Taxon
- basil (Ocimum basilicum L.)Ocimum basilicumt0
- Treatment
- increasing water stress from control to W3e4
- Outcome
- Fv/Fme4
- Direction
- decreasede4
- Comparator
- controle4
- Setting
- University of Zabol in Irane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“basil (Ocimum basilicum L.)”
e0“A field experiment was conducted at the University of Zabol in Iran during 2010 growing season”
e4“By increasing water stress from control to W3, chlorophyll content in leaves was increased but Fv/Fm and APX activity decreased”
Claim · model-written summary
Increasing water stress from control to W3 decreased APX activity in basil.
- Taxon
- basil (Ocimum basilicum L.)Ocimum basilicumt0
- Treatment
- increasing water stress from control to W3e4
- Outcome
- APX activitye4
- Direction
- decreasede4
- Comparator
- controle4
- Setting
- University of Zabol in Irane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“basil (Ocimum basilicum L.)”
e0“A field experiment was conducted at the University of Zabol in Iran during 2010 growing season”
e4“By increasing water stress from control to W3, chlorophyll content in leaves was increased but Fv/Fm and APX activity decreased”
Claim · model-written summary
Rhizobacteria applied under water stress improved antioxidant and photosynthetic pigments in basil.
- Taxon
- basil (Ocimum basilicum L.)Ocimum basilicumt0
- Treatment
- Application of rhizobacteria under water stresse5
- Interactor
- rhizobacteriaHyphomicrobialese5symbiont
- Outcome
- antioxidant and photosynthetic pigmentse5
- Direction
- improvede5
- Setting
- University of Zabol in Irane0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“basil (Ocimum basilicum L.)”
e0“A field experiment was conducted at the University of Zabol in Iran during 2010 growing season”
e5“Application of rhizobacteria under water stress improved the antioxidant and photosynthetic pigments in basil plants”
Claim · model-written summary
Pseudomonades sp. under water stress significantly increased CAT enzyme activity in basil.
- Taxon
- basil (Ocimum basilicum L.)Ocimum basilicumt0
- Treatment
- Pseudomonades sp. under water stresse6
- Interactor
- Pseudomonades sp.e6symbiont
- Gene
- CATe6
- Outcome
- CAT enzyme activitye6
- Direction
- increasede6
- Setting
- University of Zabol in Irane0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“basil (Ocimum basilicum L.)”
e0“A field experiment was conducted at the University of Zabol in Iran during 2010 growing season”
e6“S1 = Pseudomonades sp. under water stress, significantly increased the CAT enzyme activity”
Claim · model-written summary
Under water stress, the combination of three bacterial species gave the highest GPX and APX activity and chlorophyll content in basil leaves.
- Taxon
- basil (Ocimum basilicum L.)Ocimum basilicumt0
- Treatment
- combination of three bacterial speciese7
- Interactor
- bacterial speciese7symbiont
- Outcome
- GPX and APX activity and chlorophyll content in leavese7
- Direction
- higheste7
- Qualifier
- under water stresse7
- Setting
- University of Zabol in Irane0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“basil (Ocimum basilicum L.)”
e0“A field experiment was conducted at the University of Zabol in Iran during 2010 growing season”
e7“the highest GPX and APX activity and chlorophyll content in leaves under water stress were in S4 = combination of three bacterial species”
The same questions in other papers
drought · soil: biology · Ocimum basilicum (basil)Positive and negative results
1 in the opposite direction
- negative
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.