Abstract
High content of chromium in plants hampers plants' metabolism, disrupts plant growth and development. Therefore, improving plants' tolerance to Cr toxicity is very essential. In our present study, we investigated the role of citric acid (CA) on chromium detoxification in terms of stress tolerance in rice. Application of CA under Cr stress restore the growth parameters, total protein content and membrane stability confirming that CA plays important role in Cr detoxification in rice. However, supplementation of CA under Cr stress caused no significant change in root Cr content but increased shoot Cr concentration (97 µg/g) compare with Cr stressed plant (24 µg/gm), suggesting that CA alleviates Cr toxicity by its chelating properties. Moreover, Fe content showed no significant changes due to CA supplementation under Cr stress, implying that Fe regulation is not involved with CA-mediated mitigation of Cr toxicity in rice. Furthermore, increased CAT, POD, and GR activity along with raised metabolites (glutathione and proline) indicates active participation in ROS scavenging and palliate the Cr toxicity in rice.
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Claims 9
Claim · model-written summary
Citric acid under chromium stress restored growth parameters, total protein content and membrane stability in rice.
- Taxon
- rice (Oryza sativa. L)
Oryza sativat0 - Treatment
- CA under Cr stresse1
- Outcome
- growth parameters, total protein content and membrane stabilitye1
- Direction
- restoree1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa. L)”
e1“Application of CA under Cr stress restore the growth parameters, total protein content and membrane stability”
Claim · model-written summary
Citric acid supplementation under chromium stress caused no significant change in root Cr content in rice.
- Taxon
- rice (Oryza sativa. L)Oryza sativat0
- Treatment
- supplementation of CA under Cr stresse2
- Outcome
- root Cr contente2
- Direction
- no significant changee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa. L)”
e2“supplementation of CA under Cr stress caused no significant change in root Cr content”
Claim · model-written summary
Citric acid under chromium stress increased shoot Cr concentration to 97 µg/g, compared with 24 µg/gm in Cr-stressed plants.
- Taxon
- rice (Oryza sativa. L)Oryza sativat0
- Treatment
- supplementation of CA under Cr stresse3
- Outcome
- shoot Cr concentratione3
- Direction
- increasede3
- Value
- 97 µg/ge3
- Qualifier
- 24 µg/gme3
- Comparator
- Cr stressed plante3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa. L)”
e3“supplementation of CA under Cr stress caused no significant change in root Cr content but increased shoot Cr concentration (97 µg/g) compare with Cr stressed plant (24 µg/gm)”
Claim · model-written summary
Citric acid alleviates chromium toxicity in rice through its chelating properties.
- Taxon
- rice (Oryza sativa. L)Oryza sativat0
- Treatment
- CAe4
- Outcome
- Cr toxicitye4
- Qualifier
- by its chelating propertiese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa. L)”
e4“suggesting that CA alleviates Cr toxicity by its chelating properties”
Claim · model-written summary
Citric acid supplementation under chromium stress caused no significant change in Fe content in rice.
- Taxon
- rice (Oryza sativa. L)Oryza sativat0
- Treatment
- CA supplementation under Cr stresse5
- Outcome
- Fe contente5
- Direction
- no significant changese5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa. L)”
e5“Fe content showed no significant changes due to CA supplementation under Cr stress”
Claim · model-written summary
Fe regulation is not involved in the citric acid-mediated mitigation of chromium toxicity in rice.
- Taxon
- riceOryza sativae6
- Outcome
- Cr toxicitye6
- Qualifier
- Fe regulation is not involvede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“implying that Fe regulation is not involved with CA-mediated mitigation of Cr toxicity in rice”
Claim · model-written summary
Citric acid under chromium stress increased CAT, POD and GR activity in rice.
- Taxon
- rice (Oryza sativa. L)Oryza sativat0
- Treatment
- Application of CA under Cr stresse0
- Outcome
- CAT, POD, and GR activitye7
- Direction
- increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa. L)”
e0“Application of CA under Cr stress”
e7“increased CAT, POD, and GR activity”
Claim · model-written summary
Citric acid under chromium stress raised glutathione and proline in rice.
- Taxon
- rice (Oryza sativa. L)Oryza sativat0
- Treatment
- Application of CA under Cr stresse0
- Outcome
- glutathione and prolinee7
- Direction
- raisede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa. L)”
e0“Application of CA under Cr stress”
e7“raised metabolites (glutathione and proline)”
Claim · model-written summary
Raised antioxidant enzyme activity and metabolites indicate active participation in ROS scavenging that alleviates chromium toxicity in rice.
- Taxon
- riceOryza sativae7
- Outcome
- Cr toxicitye7
- Qualifier
- ROS scavenginge7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“indicates active participation in ROS scavenging and palliate the Cr toxicity in rice”
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See all 8 papers →8 of 10 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.