Abstract
Increasing concentration of Cr in soil and water creates a hazardous situation for agriculture across the world. The present study was aimed to examine the effect of toxic concentration of Cr on protein oxidation, protease activity and photosynthesis in rice at seedling stage. Protein oxidation was observed in terms of extent of protein thiolation and its carbonylation. Rice seedlings exposed to 100µM Cr for 8 days in hydroponics were marked by reduced growth, a significant elevation in non-protein thiols (NPTs), protein carbonyls and protease activity and decline in the level of protein thiols, photosynthesis rate (Ps), stomatal conductance (gs), intracellular CO2 concentration (Ci) and transpiration rate (E). When aqueous extract of the fruits of Phyllanthus emblica was added in the growth medium of Cr-stressed seedlings, a marked restoration in the growth of seedlings along with restoration of Cr-induced alterations was observed. Results indicate that P. emblica extract alleviates Cr-toxicity in rice by preventing oxidation of proteins and restoring photosynthetic activity.
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Claims 6
Claim · model-written summary
Cr exposure reduced rice seedling growth.
- Taxon
- Rice
Oryza sativae0 - Organ / stage
- seedlingse0
- Treatment
- 100µM Cr for 8 dayse0
- Outcome
- growthe0
- Direction
- reducede0
- Setting
- hydroponicse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice seedlings exposed to 100µM Cr for 8 days in hydroponics were marked by reduced growth”
Claim · model-written summary
Cr exposure significantly elevated non-protein thiols, protein carbonyls and protease activity.
- Taxon
- riceOryza sativat0
- Treatment
- 100µM Cr for 8 dayse1
- Outcome
- non-protein thiols (NPTs), protein carbonyls and protease activitye0
- Direction
- elevatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant elevation in non-protein thiols (NPTs), protein carbonyls and protease activity”
t0“rice”
e1“Rice seedlings exposed to 100µM Cr for 8 days in hydroponics were marked by reduced growth”
Claim · model-written summary
Cr exposure lowered protein thiols, photosynthesis, gas exchange and transpiration.
- Taxon
- riceOryza sativat0
- Treatment
- 100µM Cr for 8 dayse1
- Outcome
- protein thiols, photosynthesis rate (Ps), stomatal conductance (gs)e0
- Direction
- declinee0
- Qualifier
- intracellular CO2 concentration (Ci) and transpiration rate (E)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decline in the level of protein thiols, photosynthesis rate (Ps), stomatal conductance (gs), intracellular CO2 concentration (Ci) and transpiration rate (E)”
t0“rice”
e1“Rice seedlings exposed to 100µM Cr for 8 days in hydroponics were marked by reduced growth”
Claim · model-written summary
Phyllanthus emblica fruit extract restored growth of Cr-stressed rice seedlings.
- Taxon
- riceOryza sativat0
- Treatment
- aqueous extract of the fruits of Phyllanthus emblicae0
- Outcome
- growth of seedlingse0
- Direction
- restoratione0
- Comparator
- Cr-stressed seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When aqueous extract of the fruits of Phyllanthus emblica was added in the growth medium of Cr-stressed seedlings, a marked restoration in the growth of seedlings along with restoration of Cr-induced alterations was observed”
t0“rice”
Claim · model-written summary
Phyllanthus emblica extract restored Cr-induced physiological alterations.
- Taxon
- riceOryza sativat0
- Treatment
- aqueous extract of the fruits of Phyllanthus emblicae0
- Outcome
- Cr-induced alterationse0
- Direction
- restoratione0
- Comparator
- Cr-stressed seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When aqueous extract of the fruits of Phyllanthus emblica was added in the growth medium of Cr-stressed seedlings, a marked restoration in the growth of seedlings along with restoration of Cr-induced alterations was observed”
t0“rice”
Claim · model-written summary
Authors attribute extract mitigation to less protein oxidation and restored photosynthesis.
- Taxon
- riceOryza sativae0
- Treatment
- P. emblica extracte0
- Outcome
- Cr-toxicitye0
- Qualifier
- preventing oxidation of proteins and restoring photosynthetic activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P. emblica extract alleviates Cr-toxicity in rice by preventing oxidation of proteins and restoring photosynthetic activity”
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