Abstract
Ascophyllum nodosum extract (ANE) is considered as an effective source of biostimulants that have the potential of ameliorating the negative impact of different abiotic stresses in plants. Considering the growth-promoting ability and other regulatory roles of ANE, the present investigation was executed to evaluate the role of ANE in conferring arsenic (As) tolerance in rice (Oryza sativa L. cv. BRRI dhan89). Rice seedlings (35-d-old) were exposed to two doses of sodium arsenate (As1 − 50 mg As kg–1 soil; As2 − 100 mg As kg–1 soil) at 25 days after transplanting through irrigation, whereas only water was applied to the control. Foliar application of 0.1% ANE was also supplemented under control as well as As-stressed conditions at 7 days intervals for 5 times. Arsenic-induced oxidative stress was evident through a sharp increase in lipid peroxidation, hydrogen peroxide, methylglyoxal, and electrolyte leakage in the As-treated plants. As a consequence, plant growth and biomass, leaf relative water content, as well as yield attributes were reduced noticeably. On the other hand, ANE supplemented plants accumulated enhanced levels of ascorbate and glutathione, their redox balance, and the activities of antioxidant and glyoxalase enzymes viz. ascorbate peroxidase, monodehydroascorbate reductase, dehydroascorbate reductase, glutathione reductase, catalase, glutathione peroxidase, and activities of glyoxalase I and glyoxalase II, respectively. Furthermore, relative water content, plant growth, yield attributes and yield were increased in the As-treated rice plants with ANE supplementation. The results reflected that foliar spray with ANE alleviated As-induced oxidative stress in rice plants by modulating the antioxidative defense and glyoxalase system.
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Claims 10
Claim · model-written summary
Arsenic treatment increased lipid peroxidation, hydrogen peroxide and methylglyoxal in rice.
- Taxon
- rice
Oryza sativat0 - Treatment
- As-treatede0
- Outcome
- lipid peroxidation, hydrogen peroxide, methylglyoxale0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Arsenic-induced oxidative stress was evident through a sharp increase in lipid peroxidation, hydrogen peroxide, methylglyoxal, and electrolyte leakage in the As-treated plants”
t0“rice”
Claim · model-written summary
Arsenic treatment increased electrolyte leakage.
- Taxon
- riceOryza sativat0
- Treatment
- As-treatede0
- Outcome
- electrolyte leakagee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Arsenic-induced oxidative stress was evident through a sharp increase in lipid peroxidation, hydrogen peroxide, methylglyoxal, and electrolyte leakage in the As-treated plants”
t0“rice”
Claim · model-written summary
Arsenic treatment reduced growth, biomass and leaf water content.
- Taxon
- riceOryza sativat0
- Treatment
- Arsenict1
- Outcome
- plant growth and biomass, leaf relative water contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth and biomass, leaf relative water content, as well as yield attributes were reduced noticeably”
t0“rice”
t1“arsenic toxicity”
Claim · model-written summary
Arsenic treatment reduced yield attributes.
- Taxon
- riceOryza sativat0
- Treatment
- arsenic toxicityt1
- Outcome
- yield attributese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth and biomass, leaf relative water content, as well as yield attributes were reduced noticeably”
t0“rice”
t1“arsenic toxicity”
Claim · model-written summary
ANE supplementation increased ascorbate and glutathione and their redox balance.
- Taxon
- riceOryza sativat0
- Treatment
- ANEe0
- Outcome
- ascorbate and glutathione, their redox balancee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ANE supplemented plants accumulated enhanced levels of ascorbate and glutathione, their redox balance, and the activities of antioxidant and glyoxalase enzymes”
t0“rice”
Claim · model-written summary
ANE supplementation enhanced antioxidant enzyme activities.
- Taxon
- riceOryza sativat0
- Treatment
- ANEe0
- Outcome
- activities of antioxidante0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ANE supplemented plants accumulated enhanced levels of ascorbate and glutathione, their redox balance, and the activities of antioxidant and glyoxalase enzymes viz. ascorbate peroxidase, monodehydroascorbate reductase, dehydroascorbate reductase, glutathione reductase, catalase, glutathione peroxidase”
t0“rice”
Claim · model-written summary
ANE supplementation enhanced glyoxalase activities.
- Taxon
- riceOryza sativat0
- Treatment
- ANEe0
- Outcome
- activities of glyoxalase I and glyoxalase IIe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ANE supplemented plants accumulated enhanced levels of ascorbate and glutathione, their redox balance, and the activities of antioxidant and glyoxalase enzymes viz. ascorbate peroxidase, monodehydroascorbate reductase, dehydroascorbate reductase, glutathione reductase, catalase, glutathione peroxidase, and activities of glyoxalase I and glyoxalase II, respectively”
t0“rice”
Claim · model-written summary
ANE increased relative water content and plant growth in arsenic treated rice.
- Taxon
- riceOryza sativae0
- Treatment
- ANE supplementatione0
- Outcome
- relative water content, plant growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative water content, plant growth, yield attributes and yield were increased in the As-treated rice plants with ANE supplementation”
Claim · model-written summary
ANE increased yield attributes and yield in arsenic treated rice.
- Taxon
- riceOryza sativae0
- Treatment
- ANE supplementatione0
- Outcome
- yield attributes and yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative water content, plant growth, yield attributes and yield were increased in the As-treated rice plants with ANE supplementation”
Claim · model-written summary
The authors attribute ANE alleviation of arsenic oxidative stress to antioxidant and glyoxalase modulation.
- Taxon
- riceOryza sativae0
- Treatment
- foliar spray with ANEe0
- Outcome
- As-induced oxidative stresse0
- Qualifier
- modulating the antioxidative defense and glyoxalase systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar spray with ANE alleviated As-induced oxidative stress in rice plants by modulating the antioxidative defense and glyoxalase system”
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