Abstract
Methyl jasmonate (MeJA), a plant-signalling molecule, is involved in an array of plant development and the defence responses. This study was conducted to explore the role of exogenous MeJA application in alleviating the adversities of drought stress in soybean (Glycine max L. Merrill.). Soybean plants were grown under normal conditions until blooming and were then subjected to drought by withholding irrigation followed by foliar application of (50 μm) MeJA. Drought stress substantially suppressed the yield and yield-related traits, whereas it accelerated the membrane lipid peroxidation. Nonetheless, substantial increase in activities of enzymatic antioxidants (superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT)), proline, relative water contents (RWC) with simultaneous decrease in membrane lipid peroxidation was observed in MeJA-treated plants under drought. These beneficial effects led to improvement in biological and grain yield, and harvest index under drought. Interestingly, MeJA application was also useful under well-watered conditions. These results suggest the involvement of MeJA in improving the drought tolerance of soybean by modulating the membrane lipid peroxidation and antioxidant activities.
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Claims 7
Claim · model-written summary
Drought suppressed soybean yield and yield-related traits.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Drought stresse0
- Outcome
- yield and yield-related traitse0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress substantially suppressed the yield and yield-related traits”
t0“Soybean”
Claim · model-written summary
Drought accelerated soybean membrane lipid peroxidation.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Droughte1
- Outcome
- membrane lipid peroxidatione0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas it accelerated the membrane lipid peroxidation”
e1“Drought stress substantially suppressed the yield and yield-related traits”
t0“Soybean”
Claim · model-written summary
MeJA increased SOD, POD and CAT antioxidant activities under drought.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- MeJA-treated plants under droughte1
- Outcome
- activities of enzymatic antioxidantse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“substantial increase in activities of enzymatic antioxidants (superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT))”
e1“MeJA-treated plants under drought”
t0“Soybean”
Claim · model-written summary
MeJA increased soybean proline and relative water contents under drought.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- MeJA-treated plants under droughte0
- Outcome
- proline, relative water contents (RWC)e1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proline, relative water contents (RWC) with simultaneous decrease in membrane lipid peroxidation was observed in MeJA-treated plants under drought”
e1“substantial increase in activities of enzymatic antioxidants (superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT)), proline, relative water contents (RWC)”
t0“Soybean”
Claim · model-written summary
MeJA decreased soybean membrane lipid peroxidation under drought.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- MeJA-treated plants under droughte0
- Outcome
- membrane lipid peroxidatione0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decrease in membrane lipid peroxidation was observed in MeJA-treated plants under drought”
t0“Soybean”
Claim · model-written summary
MeJA improved soybean biological and grain yield and harvest index under drought.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- MeJA-treated plants under droughte1
- Outcome
- biological and grain yield, and harvest indexe0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improvement in biological and grain yield, and harvest index under drought”
e1“MeJA-treated plants under drought”
t0“Soybean”
Claim · model-written summary
MeJA was useful under well-watered conditions.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- MeJA applicatione0
- Outcome
- useful under well-watered conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA application was also useful under well-watered conditions”
t0“Soybean”
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