Abstract
The role of exogenous spermidine (Spd) in alleviating low temperature (LT) stress in mung bean (Vigna radiata L. cv. BARI Mung-3) seedlings has been investigated. Low temperature stress modulated the non-enzymatic and enzymatic components of ascorbate-glutathione (AsA-GSH) cycle, increased H₂O₂ content and lipid peroxidation, which indicate oxidative damage of seedlings. Low temperature reduced the leaf relative water content (RWC) and destroyed leaf chlorophyll, which inhibited seedlings growth. Exogenous pretreatment of Spd in LT-affected seedlings significantly increased the contents of non-enzymatic antioxidants of AsA-GSH cycle, which include AsA and GSH. Exogenous Spd decreased dehydroascorbate (DHA), increased AsA/DHA ratio, decreased glutathione disulfide (GSSG) and increased GSH/GSSG ratio under LT stress. Activities of AsA-GSH cycle enzymes such as ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR) and glutathione reductase (GR) increased after Spd pretreatment in LT affected seedlings. Thus, the oxidative stress was reduced. Protective effects of Spd are also reflected from reduction of methylglyoxal (MG) toxicity by improving glyoxalase cycle components, and by maintaining osmoregulation, water status and improved seedlings growth. The present study reveals the vital roles of AsA-GSH and glyoxalase cycle in alleviating LT injury.
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Claims 12
Claim · model-written summary
Low temperature increased oxidative damage markers in seedlings.
- Taxon
- Mung Bean
.jpg?width=60)
Vigna radiatat0 - Treatment
- Low temperature stresse0
- Outcome
- H₂O₂ content and lipid peroxidatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“Low temperature stress modulated the non-enzymatic and enzymatic components of ascorbate-glutathione (AsA-GSH) cycle, increased H₂O₂ content and lipid peroxidation”
Claim · model-written summary
Low temperature reduced leaf water content.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Low temperaturee0
- Outcome
- leaf relative water content (RWC)e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“Low temperature reduced the leaf relative water content (RWC)”
Claim · model-written summary
Low temperature destroyed leaf chlorophyll and inhibited seedling growth.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Low temperaturet0
- Outcome
- leaf chlorophylle0
- Direction
- destroyede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“destroyed leaf chlorophyll, which inhibited seedlings growth”
Claim · model-written summary
Spermidine increased AsA and GSH under low temperature.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Exogenous pretreatment of Spde0
- Outcome
- AsA and GSHe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“Exogenous pretreatment of Spd in LT-affected seedlings significantly increased the contents of non-enzymatic antioxidants of AsA-GSH cycle, which include AsA and GSH”
Claim · model-written summary
Spermidine decreased DHA under low temperature.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Exogenous Spde0
- Outcome
- dehydroascorbate (DHA)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“Exogenous Spd decreased dehydroascorbate (DHA)”
Claim · model-written summary
Spermidine increased the AsA/DHA ratio.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Spermidinet0
- Outcome
- AsA/DHA ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“increased AsA/DHA ratio”
Claim · model-written summary
Spermidine decreased GSSG under low temperature.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Spermidinet0
- Outcome
- glutathione disulfide (GSSG)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“decreased glutathione disulfide (GSSG)”
Claim · model-written summary
Spermidine increased GSH/GSSG ratio.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Spermidinet0
- Outcome
- GSH/GSSG ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“increased GSH/GSSG ratio under LT stress”
Claim · model-written summary
Spermidine increased four AsA-GSH cycle enzyme activities.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Spd pretreatmente0
- Gene
- ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR) and glutathione reductase (GR)e0
- Outcome
- Activities of AsA-GSH cycle enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“Activities of AsA-GSH cycle enzymes such as ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR) and glutathione reductase (GR) increased after Spd pretreatment in LT affected seedlings”
Claim · model-written summary
Spermidine reduced oxidative stress.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Spermidinet0
- Outcome
- oxidative stresse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“Thus, the oxidative stress was reduced”
Claim · model-written summary
Spermidine reduced methylglyoxal toxicity by improving glyoxalase components.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Spde0
- Compound
- methylglyoxal (MG)e0
- Outcome
- methylglyoxal (MG) toxicitye0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“Protective effects of Spd are also reflected from reduction of methylglyoxal (MG) toxicity by improving glyoxalase cycle components”
Claim · model-written summary
Spermidine maintained osmoregulation and water status and improved seedling growth.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Spermidinet0
- Outcome
- osmoregulation, water status and improved seedlings growthe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Spermidine Alleviates Low Temperature Injury in Mung Bean (Vigna radiata L.) Seedlings”
e0“by maintaining osmoregulation, water status and improved seedlings growth”
The same questions in other papers
cold · physiology: oxidative · Vigna radiata (mung bean)Results agree
1 paper in the same direction as this paper
- negative
cold · physiology: water · Vigna radiata (mung bean)Results agree
3 papers in the same direction as this paper
- negative
- negative
- no effect
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.