Abstract
Mung bean, a legume, is sensitive to abiotic stresses at different growth stages, and its yield potential is affected by drought and high-temperature stress at the sensitive stage. Melatonin is a multifunctional hormone that plays a vital role in plant stress defense mechanisms. This study aimed to evaluate the efficiency of melatonin under individual and combined drought and high-temperature stress in mung bean. An experiment was laid out with five treatments, including an exogenous application of 100 µM melatonin as a seed treatment, foliar spray, and a combination of both seed treatment and foliar spray, as well as absolute control (ambient condition) and control (stress without melatonin treatment). Stresses were imposed during the mung bean's reproductive stage (31-40 DAS) for ten days. Results revealed that drought and high-temperature stress significantly decreased chlorophyll index, Fv/Fm ratio, photosynthetic rate, stomatal conductance, and transpiration rate through increased reactive oxygen species (ROS) production. Foliar application of melatonin at 100 µM concentration enhanced the activity of antioxidant enzymes such as superoxide dismutase, catalase, and ascorbate peroxidase and the concentration of metabolites involved in osmoregulation and ion homeostasis; thereby, it improves physiological and yield-related traits in mung bean under individual and combined stress at the reproductive stage.
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Claims 8
Claim · model-written summary
Drought and heat stress significantly decreased chlorophyll index, Fv/Fm and photosynthetic rate.
- Taxon
- mung bean
.jpg?width=60)
Vigna radiatat0 - Treatment
- drought and high-temperature stresse0
- Outcome
- chlorophyll index, Fv/Fm ratio, photosynthetic ratee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“drought and high-temperature stress significantly decreased chlorophyll index, Fv/Fm ratio, photosynthetic rate, stomatal conductance, and transpiration rate through increased reactive oxygen species (ROS) production”
t0“Mung Bean”
Claim · model-written summary
Drought and heat stress significantly decreased stomatal conductance and transpiration.
- Taxon
- mung beanVigna radiatat0
- Treatment
- drought and high-temperature stresse0
- Outcome
- stomatal conductance, and transpiration ratee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought and high-temperature stress significantly decreased chlorophyll index, Fv/Fm ratio, photosynthetic rate, stomatal conductance, and transpiration rate through increased reactive oxygen species (ROS) production”
t0“Mung Bean”
Claim · model-written summary
Drought and heat stress increased reactive oxygen species production.
- Taxon
- mung beanVigna radiatat0
- Treatment
- drought and high-temperature stresse0
- Outcome
- reactive oxygen species (ROS) productione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought and high-temperature stress significantly decreased chlorophyll index, Fv/Fm ratio, photosynthetic rate, stomatal conductance, and transpiration rate through increased reactive oxygen species (ROS) production”
t0“Mung Bean”
Claim · model-written summary
Reactive oxygen species production mediated stress-induced photosynthetic decline.
- Taxon
- mung beanVigna radiatat0
- Outcome
- photosynthetic ratee0
- Qualifier
- increased reactive oxygen species (ROS) productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought and high-temperature stress significantly decreased chlorophyll index, Fv/Fm ratio, photosynthetic rate, stomatal conductance, and transpiration rate through increased reactive oxygen species (ROS) production”
t0“Mung Bean”
Claim · model-written summary
Foliar 100 µM melatonin enhanced superoxide dismutase, catalase and ascorbate peroxidase activities under stress.
- Taxon
- mung beanVigna radiatat0
- Treatment
- Foliar application of melatonin at 100 µM concentratione0
- Outcome
- activity of antioxidant enzymes such as superoxide dismutase, catalase, and ascorbate peroxidasee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of melatonin at 100 µM concentration enhanced the activity of antioxidant enzymes such as superoxide dismutase, catalase, and ascorbate peroxidase”
t0“Mung Bean”
Claim · model-written summary
Foliar melatonin increased metabolites involved in osmoregulation and ion homeostasis.
- Taxon
- mung beanVigna radiatat0
- Treatment
- Foliar application of melatonin at 100 µM concentratione0
- Outcome
- concentration of metabolites involved in osmoregulation and ion homeostasise0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of melatonin at 100 µM concentration enhanced the activity of antioxidant enzymes such as superoxide dismutase, catalase, and ascorbate peroxidase and the concentration of metabolites involved in osmoregulation and ion homeostasis”
t0“Mung Bean”
Claim · model-written summary
Foliar melatonin improved physiological traits under individual and combined reproductive-stage stress.
- Taxon
- mung beanVigna radiatae0
- Organ / stage
- reproductive stagee0
- Treatment
- melatonint0
- Outcome
- physiologicale0
- Direction
- improvese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it improves physiological and yield-related traits in mung bean under individual and combined stress at the reproductive stage”
t0“Melatonin”
Claim · model-written summary
Foliar melatonin improved yield-related traits under individual and combined reproductive-stage stress.
- Taxon
- mung beanVigna radiatae0
- Organ / stage
- reproductive stagee0
- Treatment
- melatonint0
- Outcome
- yield-related traitse0
- Direction
- improvese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it improves physiological and yield-related traits in mung bean under individual and combined stress at the reproductive stage”
t0“Melatonin”
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See all 7 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.