Abstract
It has been reported that nitric oxide (NO) is a negative regulator of aluminum (Al)-induced programmed cell death (PCD) in peanut root tips. However, the inhibiting mechanism of NO on Al-induced PCD is unclear. In order to investigate the mechanism by which NO inhibits Al-induced PCD, the effects of co-treatment Al with the exogenous NO donor or the NO-specific scavenger on peanut root tips, the physiological properties of antioxidants systems and cell wall (CW) in peanut root tip cells of NO inhibiting Al-induced PCD were studied with two peanut cultivars. The results showed that Al exposure induced endogenous NO accumulation, and endogenous NO burst increased antioxidant enzyme activity in response to Al stress. The addition of NO donor sodium nitroprusside (SNP) relieved Al-induced root elongation inhibition, cell death and Al adsorption in CW, as well as oxidative damage and ROS accumulation. Furthermore, co-treatment with the exogenous NO donor decreased MDA content, LOX activity and pectin methylesterase (PME) activity, increased xyloglucan endotransglucosylase (XET) activity and relative expression of the xyloglucan endotransglucosylase/hydrolase (XTH-32) gene. Taken together, it was suggested that endogenous NO triggered by Al might mainly act as a response factor. Exogenous NO alleviated Al-induced PCD by inhibiting Al adsorption in CW, enhancing antioxidant defense and reducing peroxidation of membrane lipids, alleviating the inhibition of Al on root elongation by maintaining the extensibility of CW, decreasing PME activity, and increasing XET activity and relative XTH-32 expression of CW.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Aluminium exposure induced endogenous nitric oxide accumulation in peanut root tips.
- Taxon
- Peanut
Arachis hypogaeat0 - Treatment
- Al exposuree1
- Outcome
- endogenous NO accumulatione1
- Direction
- inducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut (Arachis hypogaea L.)”
e1“Al exposure induced endogenous NO accumulation”
Claim · model-written summary
Endogenous NO burst increased antioxidant enzyme activity in peanut root tips in response to Al stress.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Al stresse2
- Compound
- endogenous NOe2
- Outcome
- antioxidant enzyme activitye2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut (Arachis hypogaea L.)”
e2“endogenous NO burst increased antioxidant enzyme activity in response to Al stress”
Claim · model-written summary
The NO donor sodium nitroprusside relieved Al-induced root elongation inhibition, cell death and Al adsorption in cell wall in peanut root tips.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- NO donor sodium nitroprusside (SNP)e3
- Outcome
- root elongation inhibition, cell death and Al adsorption in CWe3
- Direction
- relievede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut (Arachis hypogaea L.)”
e3“The addition of NO donor sodium nitroprusside (SNP) relieved Al-induced root elongation inhibition, cell death and Al adsorption in CW, as well as oxidative damage and ROS accumulation”
Claim · model-written summary
The NO donor sodium nitroprusside relieved oxidative damage and ROS accumulation in peanut root tips.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- NO donor sodium nitroprusside (SNP)e3
- Outcome
- oxidative damage and ROS accumulatione3
- Direction
- relievede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut (Arachis hypogaea L.)”
e3“The addition of NO donor sodium nitroprusside (SNP) relieved Al-induced root elongation inhibition, cell death and Al adsorption in CW, as well as oxidative damage and ROS accumulation”
Claim · model-written summary
Co-treatment with the exogenous NO donor decreased MDA content, LOX activity and PME activity in peanut root tips.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- co-treatment with the exogenous NO donore4
- Outcome
- MDA content, LOX activity and pectin methylesterase (PME) activitye4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut (Arachis hypogaea L.)”
e4“co-treatment with the exogenous NO donor decreased MDA content, LOX activity and pectin methylesterase (PME) activity”
Claim · model-written summary
Co-treatment with the exogenous NO donor increased xyloglucan endotransglucosylase (XET) activity in peanut root tips.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- co-treatment with the exogenous NO donore4
- Outcome
- xyloglucan endotransglucosylase (XET) activitye6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut (Arachis hypogaea L.)”
e4“co-treatment with the exogenous NO donor decreased MDA content, LOX activity and pectin methylesterase (PME) activity”
e6“increased xyloglucan endotransglucosylase (XET) activity and relative expression of the xyloglucan endotransglucosylase/hydrolase (XTH-32) gene”
Claim · model-written summary
Co-treatment with the exogenous NO donor increased relative expression of the XTH-32 gene in peanut root tips.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- co-treatment with the exogenous NO donore4
- Gene
- XTH-32e6
- Outcome
- relative expressione6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut (Arachis hypogaea L.)”
e4“co-treatment with the exogenous NO donor decreased MDA content, LOX activity and pectin methylesterase (PME) activity”
e6“increased xyloglucan endotransglucosylase (XET) activity and relative expression of the xyloglucan endotransglucosylase/hydrolase (XTH-32) gene”
Claim · model-written summary
Exogenous NO is proposed to alleviate Al-induced programmed cell death in peanut root tips by inhibiting Al adsorption in the cell wall.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Exogenous NOe7
- Outcome
- Al-induced PCDe7
- Qualifier
- by inhibiting Al adsorption in CWe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut (Arachis hypogaea L.)”
e7“Exogenous NO alleviated Al-induced PCD by inhibiting Al adsorption in CW”
The same questions in other papers
sodium nitroprusside · physiology: oxidative · Arachis hypogaea (peanut)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
3 papers more in this group
See all 7 papers →sodium nitroprusside · cytology · Arachis hypogaea (peanut)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.