Abstract
greatly inhibited plant growth, with Cd having a higher inhibiting effect than Cu. Under single or dual stresses of Cu and Cd, their contents in both tomato roots and leaves were significantly increased. However, tomato roots showed preference to essential element Cu with a luxury uptake and strictly against Cd through cell plasma membrane in which the content of Cd was only one tenth of Cu in plants. These metal stresses, especially Cd stress, could be alleviated by application of exogenous NO. Tomato plants detoxify these passively-absorbed elements through similar mechanisms, including chelation with glutathione, phytochelatin or metallothionein, as well as vascular compartmentalization. Exogenous NO could alleviate these stresses through regulating the oxidation-reduction condition of GSH-GSSH, controlling the metabolism of GSH-PCs, as well as promoting the vascular compartmentalization of excessive Cu and Cd. In addition, NO could induce higher expression of chelators, such as MTs, GSH and PCs, in both roots and shoots, which showed additive effects to other responses and might be another important detoxification pathway mediated through NO for the responses of tomato plants to Cu and Cd stresses.
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Claims 10
Claim · model-written summary
Cu and Cd stresses greatly inhibited tomato plant growth.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- stress of Cu and Cdt0
- Outcome
- plant growthe1
- Direction
- greatly inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous NO mediated the detoxification pathway of tomato seedlings under different stress of Cu and Cd”
e1“greatly inhibited plant growth, with Cd having a higher inhibiting effect than Cu”
Claim · model-written summary
Cd stress had a higher inhibiting effect on tomato plant growth than Cu stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Cde1
- Outcome
- plant growthe1
- Direction
- higher inhibiting effecte1
- Comparator
- Cue1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous NO mediated the detoxification pathway of tomato seedlings under different stress of Cu and Cd”
e1“greatly inhibited plant growth, with Cd having a higher inhibiting effect than Cu”
Claim · model-written summary
Single or dual Cu and Cd stresses significantly increased Cu and Cd contents in tomato roots and leaves.
- Taxon
- tomatoSolanum lycopersicume2
- Organ / stage
- roots and leavese2
- Treatment
- single or dual stresses of Cu and Cde2
- Outcome
- contentse2
- Direction
- significantly increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Under single or dual stresses of Cu and Cd, their contents in both tomato roots and leaves were significantly increased”
Claim · model-written summary
Tomato roots showed a luxury uptake of Cu.
- Taxon
- tomatoSolanum lycopersicume3
- Organ / stage
- rootse3
- Compound
- Cue3
- Outcome
- luxury uptakee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“tomato roots showed preference to essential element Cu with a luxury uptake and strictly against Cd through cell plasma membrane”
Claim · model-written summary
Cd content in tomato plants was only one tenth of Cu content, as roots restricted Cd through the cell plasma membrane.
- Taxon
- tomatoSolanum lycopersicume3
- Compound
- Cde3
- Outcome
- the content of Cde3
- Value
- one tenth of Cue3
- Qualifier
- strictly against Cd through cell plasma membranee3
- Comparator
- Cue3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“tomato roots showed preference to essential element Cu with a luxury uptake and strictly against Cd through cell plasma membrane in which the content of Cd was only one tenth of Cu in plants”
Claim · model-written summary
Exogenous NO could alleviate Cu and Cd stresses in tomato, especially Cd stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- exogenous NOe4
- Outcome
- metal stressese4
- Direction
- alleviatede4
- Qualifier
- especially Cd stresse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous NO mediated the detoxification pathway of tomato seedlings under different stress of Cu and Cd”
e4“These metal stresses, especially Cd stress, could be alleviated by application of exogenous NO”
Claim · model-written summary
Tomato plants detoxify Cu and Cd through chelation with glutathione, phytochelatin or metallothionein and vascular compartmentalization.
- Taxon
- Tomato plantsSolanum lycopersicume5
- Compound
- glutathione, phytochelatin or metallothioneine5
- Outcome
- detoxify these passively-absorbed elementse5
- Qualifier
- vascular compartmentalizatione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Tomato plants detoxify these passively-absorbed elements through similar mechanisms, including chelation with glutathione, phytochelatin or metallothionein, as well as vascular compartmentalization”
Claim · model-written summary
Exogenous NO alleviates metal stress by regulating the oxidation-reduction condition of GSH-GSSH and controlling the metabolism of GSH-PCs.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Exogenous NOe6
- Compound
- GSH-GSSHe6
- Outcome
- oxidation-reduction condition of GSH-GSSHe6
- Qualifier
- controlling the metabolism of GSH-PCse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous NO mediated the detoxification pathway of tomato seedlings under different stress of Cu and Cd”
e6“Exogenous NO could alleviate these stresses through regulating the oxidation-reduction condition of GSH-GSSH, controlling the metabolism of GSH-PCs”
Claim · model-written summary
Exogenous NO promotes vascular compartmentalization of excessive Cu and Cd in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Exogenous NOt0
- Outcome
- vascular compartmentalization of excessive Cu and Cde6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous NO mediated the detoxification pathway of tomato seedlings under different stress of Cu and Cd”
e6“promoting the vascular compartmentalization of excessive Cu and Cd”
Claim · model-written summary
NO induced higher expression of chelators MTs, GSH and PCs in tomato roots and shoots, with additive effects to other responses.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- roots and shootse7
- Treatment
- NOe7
- Gene
- MTse7
- Compound
- GSH and PCse7
- Outcome
- expression of chelatorse7
- Direction
- highere7
- Qualifier
- additive effects to other responsese7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“NO could induce higher expression of chelators, such as MTs, GSH and PCs, in both roots and shoots, which showed additive effects to other responses”
t0“Exogenous NO mediated the detoxification pathway of tomato seedlings under different stress of Cu and Cd”
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