Abstract
Rice is a globally important food crop which is sensitive to the presence of a metalloid, arsenic (As). There is limited research pertaining to identifying relevant As-tolerant rice germplasm in adaptive breeding research initiatives, despite the fact that As contamination in rice has long been known. This study served to identify the growth performance of different rice genotypes under high levels of As. Rice seed germination analysis (germination percentage, GP) was performed to categorize the eight different rice genotypes and growing under varying As levels including As25, 25 μM and As50, 50 μM. The Zhenong 41 was identified as the highly tolerant genotypes with lowest decrease in GP by 87 %, plant height (PH) by 26 %, and dry weight (DW) by 16 %; while 9311 was observed to be the most sensitive genotype with highest reduction in GP by 44 %, PH by 48 % and DW by 54 % under As25 stress conditions, compared to control treatment. The higher As50 stress treatment delivered more adverse growth inhibitory effects than the rice plants cultivated under As25. Specifically, the As-sensitive rice genotype 9311 showed significantly higher decrease in foliar chlorophyll contents relative to the other genotypes, especially Zhenong 41 (As-tolerant). During exposure to high As levels, the rice genotype 9311 significantly modulated and augmented the production of MDA and H2O2 by stimulating the activities of POD, SOD, and CAT. This study revealed interesting insights into the responses of rice genotypes to variable As stresses throughout the various growth stages. Overall, the findings of this study could be harnessed to support any ongoing As-tolerant rice breeding agendas for cultivation in As-polluted environments.
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Claims 11
Claim · model-written summary
Zhenong 41 showed the lowest decrease in germination percentage under As25 stress, by 87%.
- Taxon
- Rice
Oryza sativae0 - Material
- Zhenong 41e1
- Treatment
- As25 stresse2
- Outcome
- GPe1
- Direction
- lowest decreasee1
- Value
- 87 %e1
- Comparator
- control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice is a globally important food crop”
e1“The Zhenong 41 was identified as the highly tolerant genotypes with lowest decrease in GP by 87 %, plant height (PH) by 26 %, and dry weight (DW) by 16 %”
e2“under As25 stress conditions, compared to control treatment”
Claim · model-written summary
Zhenong 41 showed the lowest decrease in plant height under As25 stress, by 26%.
- Taxon
- RiceOryza sativae0
- Material
- Zhenong 41e1
- Treatment
- As25 stresse2
- Outcome
- plant height (PH)e1
- Direction
- lowest decreasee1
- Value
- 26 %e1
- Comparator
- control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice is a globally important food crop”
e1“The Zhenong 41 was identified as the highly tolerant genotypes with lowest decrease in GP by 87 %, plant height (PH) by 26 %, and dry weight (DW) by 16 %”
e2“under As25 stress conditions, compared to control treatment”
Claim · model-written summary
Zhenong 41 showed the lowest decrease in dry weight under As25 stress, by 16%.
- Taxon
- RiceOryza sativae0
- Material
- Zhenong 41e1
- Treatment
- As25 stresse2
- Outcome
- dry weight (DW)e1
- Direction
- lowest decreasee1
- Value
- 16 %e1
- Comparator
- control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice is a globally important food crop”
e1“The Zhenong 41 was identified as the highly tolerant genotypes with lowest decrease in GP by 87 %, plant height (PH) by 26 %, and dry weight (DW) by 16 %”
e2“under As25 stress conditions, compared to control treatment”
Claim · model-written summary
Genotype 9311 showed the highest reduction in germination percentage under As25 stress, by 44%.
- Taxon
- RiceOryza sativae0
- Material
- 9311e3
- Treatment
- As25 stresse2
- Outcome
- GPe3
- Direction
- highest reductione3
- Value
- 44 %e3
- Comparator
- control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice is a globally important food crop”
e2“under As25 stress conditions, compared to control treatment”
e3“9311 was observed to be the most sensitive genotype with highest reduction in GP by 44 %, PH by 48 % and DW by 54 %”
Claim · model-written summary
Genotype 9311 showed the highest reduction in plant height under As25 stress, by 48%.
- Taxon
- RiceOryza sativae0
- Material
- 9311e3
- Treatment
- As25 stresse2
- Outcome
- PHe3
- Direction
- highest reductione3
- Value
- 48 %e3
- Comparator
- control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice is a globally important food crop”
e2“under As25 stress conditions, compared to control treatment”
e3“9311 was observed to be the most sensitive genotype with highest reduction in GP by 44 %, PH by 48 % and DW by 54 %”
Claim · model-written summary
Genotype 9311 showed the highest reduction in dry weight under As25 stress, by 54%.
- Taxon
- RiceOryza sativae0
- Material
- 9311e3
- Treatment
- As25 stresse2
- Outcome
- DWe3
- Direction
- highest reductione3
- Value
- 54 %e3
- Comparator
- control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice is a globally important food crop”
e2“under As25 stress conditions, compared to control treatment”
e3“9311 was observed to be the most sensitive genotype with highest reduction in GP by 44 %, PH by 48 % and DW by 54 %”
Claim · model-written summary
Under high As, genotype 9311 showed a significantly higher decrease in foliar chlorophyll than the other genotypes.
- Taxon
- riceOryza sativae4
- Material
- 9311e4
- Treatment
- high As levelse5
- Outcome
- foliar chlorophyll contentse4
- Direction
- higher decreasee4
- Comparator
- the other genotypese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“the As-sensitive rice genotype 9311 showed significantly higher decrease in foliar chlorophyll contents relative to the other genotypes, especially Zhenong 41 (As-tolerant)”
e5“During exposure to high As levels, the rice genotype 9311 significantly modulated and augmented the production of MDA and H2O2 by stimulating the activities of POD, SOD, and CAT”
Claim · model-written summary
Under high As, genotype 9311 significantly augmented MDA and H2O2 production.
- Taxon
- riceOryza sativae5
- Material
- 9311e5
- Treatment
- high As levelse5
- Outcome
- production of MDA and H2O2e5
- Direction
- augmentede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“During exposure to high As levels, the rice genotype 9311 significantly modulated and augmented the production of MDA and H2O2 by stimulating the activities of POD, SOD, and CAT”
Claim · model-written summary
Under high As, genotype 9311 stimulated the activities of POD, SOD and CAT.
- Taxon
- riceOryza sativae5
- Material
- 9311e5
- Treatment
- high As levelse5
- Outcome
- activities of POD, SOD, and CATe5
- Direction
- stimulatinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“During exposure to high As levels, the rice genotype 9311 significantly modulated and augmented the production of MDA and H2O2 by stimulating the activities of POD, SOD, and CAT”
Claim · model-written summary
Higher As50 stress delivered more adverse growth inhibitory effects than As25 in rice.
- Taxon
- riceOryza sativae6
- Treatment
- As50 stress treatmente6
- Outcome
- growth inhibitory effectse6
- Direction
- more adversee6
- Comparator
- As25e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The higher As50 stress treatment delivered more adverse growth inhibitory effects than the rice plants cultivated under As25”
Claim · model-written summary
The findings could support As-tolerant rice breeding for cultivation in As-polluted environments.
- Taxon
- riceOryza sativae7
- Outcome
- As-tolerant rice breeding agendase7
- Setting
- As-polluted environmentse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“the findings of this study could be harnessed to support any ongoing As-tolerant rice breeding agendas for cultivation in As-polluted environments”
The same questions in other papers
arsenic atom · physiology: oxidative · Oryza sativa (rice)Positive and negative results
12 papers in the same direction as this paper · 2 in the opposite direction
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