Abstract
OBJECTIVES: The application of brassinosteroids (BRs), the plant steroidal hormones, results in an increased tolerance toward stress and thus helps improving the yield of crop plants. The present study was carried out to investigate the effect of 28-homobrassinolide (28-HBL) on the protein content as well as activities of antioxidant enzymes viz., glutathione-s-transferase (GST) and polyphenol oxidase (PPO) in radish plants grown under Cadmium (Cd) and Mercury (Hg) metal stress. MATERIALS AND METHODS: Shoots of 60 and 90 days old radish plants, grown under Cd and Hg metal stress (0, 0.5, 1.0, 1.5 mM) and given the presowing treatment of 28-HBL (0, 10(-7), 10(-9), 10(-11) M) to seeds for 8 h, were analyzed for protein content and GST and PPO enzyme activities. RESULTS: Protein content showed decrease in plants given Cd and Hg metal treatment alone, while treatment with 28-HBL enhanced the protein content, suggesting its stress protective role. An increase in the activity of antioxidative enzymes was also observed in plants stressed with heavy metals as well as in those supplemented with 28-HBL. CONCLUSIONS: In the present investigation, the activity of antioxidative enzymes was found to increase due to metal stress and a further increase was noticed in plants given both metal and 28-HBL treatment, suggesting the stress protective role of 28-HBL via modulating the antioxidative enzymes.
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Claims 5
Claim · model-written summary
Cadmium and mercury alone reduced radish protein content.
- Taxon
- Raphanus sativus L.
Raphanus sativust0 - Treatment
- Cd and Hg metal treatment alonee0
- Outcome
- Protein contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Protein content showed decrease in plants given Cd and Hg metal treatment alone, while treatment with 28-HBL enhanced the protein content”
t0“Raphanus sativus L.”
Claim · model-written summary
28-HBL enhanced protein content in metal stressed radish.
- Taxon
- Raphanus sativus L.Raphanus sativust0
- Treatment
- treatment with 28-HBLe0
- Outcome
- protein contente0
- Direction
- enhancede0
- Comparator
- Cd and Hg metal treatment alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Protein content showed decrease in plants given Cd and Hg metal treatment alone, while treatment with 28-HBL enhanced the protein content”
t0“Raphanus sativus L.”
Claim · model-written summary
Heavy metal stress increased antioxidative enzyme activity.
- Taxon
- Raphanus sativus L.Raphanus sativust0
- Treatment
- heavy metalse0
- Outcome
- activity of antioxidative enzymese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase in the activity of antioxidative enzymes was also observed in plants stressed with heavy metals as well as in those supplemented with 28-HBL.”
t0“Raphanus sativus L.”
Claim · model-written summary
28-HBL supplementation increased antioxidative enzyme activity.
- Taxon
- Raphanus sativus L.Raphanus sativust0
- Treatment
- 28-HBLe0
- Outcome
- activity of antioxidative enzymese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase in the activity of antioxidative enzymes was also observed in plants stressed with heavy metals as well as in those supplemented with 28-HBL.”
t0“Raphanus sativus L.”
Claim · model-written summary
Metal plus 28-HBL further increased antioxidative enzyme activity above metal stress.
- Taxon
- Raphanus sativus L.Raphanus sativust0
- Treatment
- both metal and 28-HBL treatmente0
- Outcome
- activity of antioxidative enzymese0
- Direction
- further increasee0
- Comparator
- metal stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activity of antioxidative enzymes was found to increase due to metal stress and a further increase was noticed in plants given both metal and 28-HBL treatment”
t0“Raphanus sativus L.”
The same questions in other papers
cadmium atom · quality: protein · Raphanus sativus (radish)Results agree
1 paper in the same direction as this paper
- negative
heavy metal · physiology: enzyme activity · Raphanus sativus (radish)Positive and negative results
2 in the opposite direction
- negative
- negative
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.