Abstract
This study was designed to determine the anthocyanin cyanidin-3-glucoside content and antioxidant activity of rice varieties under salinity stress. Two classes of Thai rice lines: cyanic (Riceberry, Kham, and Khamdoisaket) and acyanic (KDML 105, Sinlek, and BC2F7#62-56) were hydroponically grown. Seedlings were grown for 16 days and were supplied with salinity nutrient solution with 0 (control) and 60 mM NaCl for 11 days. The total phenolic content and the antioxidant activity, including 2,2-diphenyl-1-picrylhydrazyl free radical-scavenging, ferric reducing antioxidant power, and lipid peroxidation were also determined by colorimetric assay. Anthocyanin pigment cyanidin-3-glucoside was quantified by high performance liquid chromatography. The results show that salinity stress in Khamdoisaket and KDML 105 cultivars significantly (p < 0.05) increased the total phenolic content, antioxidant activity, and cyanidin-3glucoside content. Riceberry, Kham, and Sinlek cultivars, showed a moderate increase. The salt tolerant variety, BC2F7#62-56, showed only a slight but not significant increase in antioxidant activity and virtually unchanged lipid peroxidation, total phenolic content, and anthocyanin cyanidin-3-glucoside content under salinity stress. These results suggest that the increased total phenolic content, antioxidant activity, and anthocyanin cyanidin-3-glucoside content in rice seedling might be a protection mechanism against salinity stress. BC2F7#62-56 seems to have potential tolerance to salinity stress. This capability could be related to unchanged antioxidant activities, lipid peroxidation, total phenolic content, and anthocyanin cyanidin-3-glucoside content.
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Claims 2
Claim · model-written summary
Salinity stress significantly increased total phenolic content, antioxidant activity and cyanidin-3-glucoside content in Khamdoisaket and KDML 105 rice seedlings compared with the control.
- Taxon
- rice
Oryza sativae1 - Material
- Khamdoisaket and KDML 105e2
- Organ / stage
- Seedlingse3
- Treatment
- salinity stresse2
- Outcome
- total phenolic content, antioxidant activity, and cyanidin-3glucoside contente2
- Direction
- increasede2
- Qualifier
- p < 0.05e2
- Comparator
- 0 (control)e3
- Setting
- hydroponically growne4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“antioxidant activity of rice varieties under salinity stress”
e2“salinity stress in Khamdoisaket and KDML 105 cultivars significantly (p < 0.05) increased the total phenolic content, antioxidant activity, and cyanidin-3glucoside content”
e3“Seedlings were grown for 16 days and were supplied with salinity nutrient solution with 0 (control) and 60 mM NaCl for 11 days”
e4“were hydroponically grown”
Claim · model-written summary
Riceberry, Kham and Sinlek rice seedlings showed a moderate increase in total phenolic content, antioxidant activity and cyanidin-3-glucoside content under salinity stress.
- Taxon
- riceOryza sativae1
- Material
- Riceberry, Kham, and Sinleke5
- Organ / stage
- Seedlingse3
- Treatment
- salinity stresse2
- Outcome
- total phenolic content, antioxidant activity, and cyanidin-3glucoside contente2
- Direction
- moderate increasee5
- Comparator
- 0 (control)e3
- Setting
- hydroponically growne4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“antioxidant activity of rice varieties under salinity stress”
e2“salinity stress in Khamdoisaket and KDML 105 cultivars significantly (p < 0.05) increased the total phenolic content, antioxidant activity, and cyanidin-3glucoside content”
e3“Seedlings were grown for 16 days and were supplied with salinity nutrient solution with 0 (control) and 60 mM NaCl for 11 days”
e4“were hydroponically grown”
e5“Riceberry, Kham, and Sinlek cultivars, showed a moderate increase”
The same questions in other papers
salinity · quality: phytochemicals · Oryza sativa (rice)Results differ
6 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- negative
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See all 14 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.