Abstract
Compounds which are able to reduce the damaging effects of various stresses such as drought should be of great importance. In this research we have used arginine pretreatment and the effect of this compound on alleviation of oxidative damages under drought stress has been investigated. Our findings showed that arginine pretreatment reduced the lipid peroxidation when water stress was imposed. In drought stressed plants, H2O2 increased and the activity of antioxidative enzymes were elevated over the controls, while glutathione reductase (GR) activity decreased. When plants pretreated with arginine, activity of catalase and guaiacol peroxidase decreased while the activity of superoxide dismutase (SOD), ascorbate peroxidase, and GR increased. Drought stress decreased ascorbate and reduced glutathione and increased dehydroascorbate. Opposite results were obtained after arginine pretreatment. When arginine was used as a precursor of nitric oxide (NO), the amelioration of the drought effects which was observed could well be the indication that these effects may be related to NO production. To prove that, we applied arginine + Nw-nitro-l-arginine methyl ester (LNAM) and on many parameters, arginine and arginine + LNAM pretreatment had the same effects and it seems that in these situations other pathways of arginine metabolism rather than nitric oxide synthase may be activated
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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
Arginine pretreatment reduced lipid peroxidation when water stress was imposed.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- arginine pretreatmente0
- Outcome
- lipid peroxidatione0
- Direction
- reducede0
- Qualifier
- when water stress was imposede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e0“arginine pretreatment reduced the lipid peroxidation when water stress was imposed”
Claim · model-written summary
Drought-stressed plants had increased H2O2 compared with controls.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- drought stressed plantse1
- Outcome
- H2O2e1
- Direction
- increasede1
- Comparator
- controlse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e1“In drought stressed plants, H2O2 increased and the activity of antioxidative enzymes were elevated over the controls”
Claim · model-written summary
Drought-stressed plants had elevated activity of antioxidative enzymes compared with controls.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- drought stressed plantse1
- Outcome
- activity of antioxidative enzymese1
- Direction
- elevatede1
- Comparator
- controlse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e1“In drought stressed plants, H2O2 increased and the activity of antioxidative enzymes were elevated over the controls”
Claim · model-written summary
Drought-stressed plants had decreased glutathione reductase (GR) activity.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- drought stressed plantse1
- Outcome
- glutathione reductase (GR) activitye1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e1“In drought stressed plants, H2O2 increased and the activity of antioxidative enzymes were elevated over the controls, while glutathione reductase (GR) activity decreased”
Claim · model-written summary
Drought stress decreased ascorbate and reduced glutathione.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Drought stresse2
- Outcome
- ascorbate and reduced glutathionee2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e2“Drought stress decreased ascorbate and reduced glutathione and increased dehydroascorbate”
Claim · model-written summary
Drought stress increased dehydroascorbate.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Drought stresse2
- Outcome
- dehydroascorbatee2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e2“Drought stress decreased ascorbate and reduced glutathione and increased dehydroascorbate”
Claim · model-written summary
Arginine pretreatment decreased the activity of catalase and guaiacol peroxidase.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- pretreated with argininee3
- Outcome
- activity of catalase and guaiacol peroxidasee3
- Direction
- decreasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e3“When plants pretreated with arginine, activity of catalase and guaiacol peroxidase decreased while the activity of superoxide dismutase (SOD), ascorbate peroxidase, and GR increased”
Claim · model-written summary
Arginine pretreatment increased the activity of superoxide dismutase (SOD), ascorbate peroxidase and GR.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- pretreated with argininee3
- Outcome
- superoxide dismutase (SOD), ascorbate peroxidase, and GRe3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e3“When plants pretreated with arginine, activity of catalase and guaiacol peroxidase decreased while the activity of superoxide dismutase (SOD), ascorbate peroxidase, and GR increased”
Claim · model-written summary
Arginine pretreatment gave opposite results to drought stress for ascorbate and reduced glutathione.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- arginine pretreatmente4
- Outcome
- ascorbate and reduced glutathionee2
- Direction
- Opposite resultse4
- Comparator
- Drought stresse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e2“Drought stress decreased ascorbate and reduced glutathione and increased dehydroascorbate”
e4“Opposite results were obtained after arginine pretreatment”
Claim · model-written summary
Arginine pretreatment gave opposite results to drought stress for dehydroascorbate.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- arginine pretreatmente4
- Outcome
- dehydroascorbatee2
- Direction
- Opposite resultse4
- Comparator
- Drought stresse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e2“Drought stress decreased ascorbate and reduced glutathione and increased dehydroascorbate”
e4“Opposite results were obtained after arginine pretreatment”
Claim · model-written summary
The amelioration of drought effects by arginine may be related to nitric oxide production.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- argininee5
- Compound
- nitric oxidee5
- Outcome
- amelioration of the drought effectse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e5“When arginine was used as a precursor of nitric oxide (NO), the amelioration of the drought effects which was observed could well be the indication that these effects may be related to NO production”
Claim · model-written summary
Arginine with LNAM pretreatment had the same effects as arginine alone on many parameters.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- arginine + LNAM pretreatmente6
- Outcome
- many parameterse6
- Direction
- samee6
- Qualifier
- other pathways of arginine metabolism rather than nitric oxide synthase may be activatede7
- Comparator
- argininee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of exogenous arginine on alleviation of oxidative damage in tomato plant underwater stress”
e6“we applied arginine + Nw-nitro-l-arginine methyl ester (LNAM) and on many parameters, arginine and arginine + LNAM pretreatment had the same effects”
e7“other pathways of arginine metabolism rather than nitric oxide synthase may be activated”
The same questions in other papers
drought · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Results differ
1 paper in the same direction as this paper · 15 in the opposite direction
- positive
- positive
- positive
13 papers more in this group
See all 17 papers →drought · molecular: metabolites · Solanum lycopersicum (tomato)Results differ
21 papers in the same direction as this paper · 17 in the opposite direction
- positive
- positive
- positive
35 papers more in this group
See all 39 papers →drought · physiology: oxidative · Solanum lycopersicum (tomato)Results differ
30 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
36 papers more in this group
See all 40 papers →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.