Abstract
Heat stress resulting from the increasing global temperatures is emerging as a primary constraint on crop productivity and negatively affects plants. Polyamines (PAs), small, positively charged nitrogenous compounds, play essential roles in plant growth, development, and stress responses. Putrescine (Put) functions as a vital growth regulator, promoting both plant growth and resistance to stress. The primary objective of the present research was to explore the mechanisms through which Put (1 mM) mitigates the adverse effects of heat stress on genotypes RH-1707, RH-1708 (thermosensitive) and RH1566 and RH-1999-42 (thermotolerant). Heat stress led to reduction in growth attributes such as shoot length, root length, fresh weight, dry weight, germination percentage, chlorophyll content and relative water content (RWC) whereas it increased membrane damage as was seen by a rise in electrolyte leakage and lipid peroxidation. The application of Put helped alleviate the adverse effects of heat stress by reducing lipid peroxidation and electrolyte leakage whereas boosting chlorophyll content, RWC and growth parameters. Most significant role of Put in reducing the detrimental effects of heat stress was observed in RH-1707 and RH-1708, which were more susceptible to cellular damage under heat stress. This study specifies that Put foliar spray (1mM) is effective in mitigating the effects of heat stress in Brassica juncea L.
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Claims 8
Claim · model-written summary
Heat stress caused reduction in shoot length, root length, fresh weight.
- Taxon
- Brassica juncea L.
Brassica junceat0 - Treatment
- Heat stresse0
- Outcome
- shoot length, root length, fresh weighte0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea L.”
e0“Heat stress led to reduction in growth attributes such as shoot length, root length, fresh weight, dry weight, germination percentage, chlorophyll content and relative water content (RWC) whereas it increased membrane damage as was seen by a rise in electrolyte leakage and lipid peroxidation.”
Claim · model-written summary
Heat stress caused reduction in dry weight, germination percentage.
- Taxon
- Brassica juncea L.Brassica junceat0
- Treatment
- Heat stresse0
- Outcome
- dry weight, germination percentagee0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea L.”
e0“Heat stress led to reduction in growth attributes such as shoot length, root length, fresh weight, dry weight, germination percentage, chlorophyll content and relative water content (RWC) whereas it increased membrane damage as was seen by a rise in electrolyte leakage and lipid peroxidation.”
Claim · model-written summary
Heat stress caused reduction in chlorophyll content and relative water content.
- Taxon
- Brassica juncea L.Brassica junceat0
- Treatment
- Heat stresse0
- Outcome
- chlorophyll content and relative water contente0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea L.”
e0“Heat stress led to reduction in growth attributes such as shoot length, root length, fresh weight, dry weight, germination percentage, chlorophyll content and relative water content (RWC) whereas it increased membrane damage as was seen by a rise in electrolyte leakage and lipid peroxidation.”
Claim · model-written summary
Heat stress caused rise in electrolyte leakage and lipid peroxidation.
- Taxon
- Brassica juncea L.Brassica junceat0
- Treatment
- Heat stresse0
- Outcome
- electrolyte leakage and lipid peroxidatione0
- Direction
- risee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea L.”
e0“Heat stress led to reduction in growth attributes such as shoot length, root length, fresh weight, dry weight, germination percentage, chlorophyll content and relative water content (RWC) whereas it increased membrane damage as was seen by a rise in electrolyte leakage and lipid peroxidation.”
Claim · model-written summary
Put reducing lipid peroxidation and electrolyte leakage under heat stress.
- Taxon
- Brassica juncea L.Brassica junceat0
- Treatment
- Pute1
- Outcome
- lipid peroxidation and electrolyte leakagee1
- Direction
- reducinge1
- Qualifier
- heat stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea L.”
e1“The application of Put helped alleviate the adverse effects of heat stress by reducing lipid peroxidation and electrolyte leakage whereas boosting chlorophyll content, RWC and growth parameters.”
Claim · model-written summary
Put boosting chlorophyll content, RWC and growth parameters under heat stress.
- Taxon
- Brassica juncea L.Brassica junceat0
- Treatment
- Pute1
- Outcome
- chlorophyll content, RWC and growth parameterse1
- Direction
- boostinge1
- Qualifier
- heat stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea L.”
e1“The application of Put helped alleviate the adverse effects of heat stress by reducing lipid peroxidation and electrolyte leakage whereas boosting chlorophyll content, RWC and growth parameters.”
Claim · model-written summary
Put had its strongest protective role in RH-1707 and RH-1708.
- Taxon
- Brassica juncea L.Brassica junceat0
- Material
- RH-1707 and RH-1708e2
- Treatment
- Pute2
- Outcome
- detrimental effects of heat stresse2
- Direction
- reducinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea L.”
e2“Most significant role of Put in reducing the detrimental effects of heat stress was observed in RH-1707 and RH-1708, which were more susceptible to cellular damage under heat stress.”
Claim · model-written summary
Put foliar spray at 1mM was judged effective against heat stress.
- Taxon
- Brassica juncea L.Brassica junceae3
- Treatment
- Put foliar spray (1mM)e3
- Outcome
- effects of heat stresse3
- Direction
- mitigatinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea L.”
e3“Put foliar spray (1mM) is effective in mitigating the effects of heat stress in Brassica juncea L.”
The same questions in other papers
putrescine · physiology: water · Brassica juncea (Indian mustard)Results agree
1 paper in the same direction as this paper
- positive
putrescine · physiology: oxidative · Brassica juncea (Indian mustard)Results agree
2 papers in the same direction as this paper
- positive
- positive
heat · growth · Brassica juncea (Indian mustard)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
heat · physiology: water · Brassica juncea (Indian mustard)Results agree
1 paper in the same direction as this paper
- negative
heat · physiology: oxidative · Brassica juncea (Indian mustard)Results agree
4 papers in the same direction as this paper
- negative
- negative
- negative
1 paper more in this group
See all 5 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.