Abstract
The application of exogenous proline and glycinebetaine (betaine) confers salt tolerance on plants under salt stress. The effects of exogenous proline and betaine on apoplastic flow in rice plants under saline conditions were investigated using trisodium-8-hydroxy-1,3,6-pyrenetrisulphonic acid (PTS), an apoplastic tracer. Rice plants took up more PTS under light conditions than under dark conditions. Salt stress increased PTS uptake and Na(+) content of rice leaves, but did not affect K(+) content, resulting in a lower K(+)/Na(+) ratio. Addition of proline or betaine to the saline medium suppressed Na(+)-induced PTS uptake and Na(+) accumulation, while the K(+) content was slightly increased, which led to a high K(+)/Na(+) ratio under saline conditions. These results suggest that exogenous proline and betaine suppressed Na(+)-enhanced apoplastic flow to reduce Na(+) uptake in rice plants.
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Claims 8
Claim · model-written summary
Rice plants took up more PTS under light than under dark conditions.
- Taxon
- Rice
Oryza sativat0
- Treatment
- light conditionse2
- Outcome
- took up more PTSe2
- Direction
- moree2
- Comparator
- dark conditionse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na+Uptake in Rice Seedlings”
e2“Rice plants took up more PTS under light conditions than under dark conditions”
Claim · model-written summary
Salt stress increased PTS uptake and Na content in rice leaves.
- Taxon
- Rice
Oryza sativat0
- Organ / stage
- leavese3
- Treatment
- Salt stresse3
- Outcome
- PTS uptake and Na(+) contente3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na+Uptake in Rice Seedlings”
e3“Salt stress increased PTS uptake and Na(+) content of rice leaves, but did not affect K(+) content, resulting in a lower K(+)/Na(+) ratio”
Claim · model-written summary
Salt stress did not affect rice leaf K content.
- Taxon
- Rice
Oryza sativat0
- Treatment
- Salt stresse3
- Outcome
- K(+) contente3
- Direction
- did not affecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na+Uptake in Rice Seedlings”
e3“Salt stress increased PTS uptake and Na(+) content of rice leaves, but did not affect K(+) content, resulting in a lower K(+)/Na(+) ratio”
Claim · model-written summary
Salt stress resulted in a lower K(+)/Na(+) ratio in rice.
- Taxon
- Rice
Oryza sativat0
- Treatment
- Salt stresse3
- Outcome
- K(+)/Na(+) ratioe3
- Direction
- lowere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na+Uptake in Rice Seedlings”
e3“Salt stress increased PTS uptake and Na(+) content of rice leaves, but did not affect K(+) content, resulting in a lower K(+)/Na(+) ratio”
Claim · model-written summary
Adding proline or betaine to the saline medium suppressed Na-induced PTS uptake and Na accumulation in rice.
- Taxon
- Rice
Oryza sativat0
- Treatment
- Addition of proline or betaine to the saline mediume4
- Outcome
- PTS uptake and Na(+) accumulatione4
- Direction
- suppressede4
- Comparator
- saline mediume4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na+Uptake in Rice Seedlings”
e4“Addition of proline or betaine to the saline medium suppressed Na(+)-induced PTS uptake and Na(+) accumulation, while the K(+) content was slightly increased, which led to a high K(+)/Na(+) ratio under saline conditions”
Claim · model-written summary
Adding proline or betaine to the saline medium slightly increased rice K content.
- Taxon
- Rice
Oryza sativat0
- Treatment
- Addition of proline or betaine to the saline mediume4
- Outcome
- K(+) contente4
- Direction
- increasede4
- Qualifier
- slightlye4
- Comparator
- saline mediume4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na+Uptake in Rice Seedlings”
e4“Addition of proline or betaine to the saline medium suppressed Na(+)-induced PTS uptake and Na(+) accumulation, while the K(+) content was slightly increased, which led to a high K(+)/Na(+) ratio under saline conditions”
Claim · model-written summary
Adding proline or betaine to the saline medium led to a high K/Na ratio in rice under saline conditions.
- Taxon
- Rice
Oryza sativat0
- Treatment
- Addition of proline or betaine to the saline mediume4
- Outcome
- K(+)/Na(+) ratioe4
- Direction
- highe4
- Comparator
- saline mediume4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na+Uptake in Rice Seedlings”
e4“Addition of proline or betaine to the saline medium suppressed Na(+)-induced PTS uptake and Na(+) accumulation, while the K(+) content was slightly increased, which led to a high K(+)/Na(+) ratio under saline conditions”
Claim · model-written summary
The authors suggest that exogenous proline and betaine reduce rice Na uptake by suppressing Na-enhanced apoplastic flow.
- Taxon
- Rice
Oryza sativat0
- Treatment
- exogenous proline and betainee5
- Outcome
- Na(+) uptakee5
- Qualifier
- suppressed Na(+)-enhanced apoplastic flowe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na+Uptake in Rice Seedlings”
e5“exogenous proline and betaine suppressed Na(+)-enhanced apoplastic flow to reduce Na(+) uptake in rice plants”
The same questions in other papers
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See all 64 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.