Abstract
Cell wall polysaccharide biosynthesis enzymes play important roles in plant growth, development and stress responses. The functions of cell wall polysaccharide synthesis enzymes in plant growth and development have been well studied. In contrast, their roles in plant responses to environmental stress are poorly understood. Previous studies have demonstrated that the rice cell wall cellulose synthase-like D4 protein (OsCSLD4) is involved in cell wall polysaccharide synthesis and is important for rice growth and development. This study demonstrated that the OsCSLD4 function-disrupted mutant nd1 was sensitive to salt stress, but insensitive to abscisic acid (ABA). The expression of some ABA synthesis and response genes was repressed in nd1 under both normal and salt stress conditions. Exogenous ABA can restore nd1-impaired salt stress tolerance. Moreover, overexpression of OsCSLD4 can enhance rice ABA synthesis gene expression, increase ABA content and improve rice salt tolerance, thus implying that OsCSLD4-regulated rice salt stress tolerance is mediated by ABA synthesis. Additionally, nd1 decreased rice tolerance to osmotic stress, but not ion toxic tolerance. The results from the transcriptome analysis showed that more osmotic stress-responsive genes were impaired in nd1 than salt stress-responsive genes, thus indicating that OsCSLD4 is involved in rice salt stress response through an ABA-induced osmotic response pathway. Intriguingly, the disruption of OsCSLD4 function decreased grain width and weight, while overexpression of OsCSLD4 increased grain width and weight. Taken together, this study demonstrates a novel plant salt stress adaptation mechanism by which crops can coordinate salt stress tolerance and yield.
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Claims 14
Claim · model-written summary
The nd1 mutant was sensitive to salt stress.
- Taxon
- rice
Oryza sativat0 - Material
- nd1e0
- Treatment
- salt stresse0
- Gene
- OsCSLD4e0
- Outcome
- sensitive to salt stresse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the OsCSLD4 function-disrupted mutant nd1 was sensitive to salt stress, but insensitive to abscisic acid (ABA)”
t0“rice”
Claim · model-written summary
The nd1 mutant was insensitive to ABA.
- Taxon
- riceOryza sativat0
- Material
- nd1e0
- Treatment
- abscisic acid (ABA)e0
- Outcome
- insensitive to abscisic acid (ABA)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the OsCSLD4 function-disrupted mutant nd1 was sensitive to salt stress, but insensitive to abscisic acid (ABA)”
t0“rice”
Claim · model-written summary
ABA synthesis and response gene expression was repressed in nd1 under normal and salt conditions.
- Taxon
- riceOryza sativat0
- Material
- nd1e0
- Gene
- ABA synthesis and response genese0
- Outcome
- expressione0
- Direction
- repressede0
- Qualifier
- under both normal and salt stress conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The expression of some ABA synthesis and response genes was repressed in nd1 under both normal and salt stress conditions”
t0“rice”
Claim · model-written summary
Exogenous ABA restored impaired salt tolerance in nd1.
- Taxon
- riceOryza sativat0
- Material
- nd1e0
- Treatment
- Exogenous ABAe0
- Outcome
- salt stress tolerancee0
- Direction
- restoree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous ABA can restore nd1-impaired salt stress tolerance”
t0“rice”
Claim · model-written summary
OsCSLD4 overexpression enhanced rice ABA synthesis gene expression.
- Taxon
- riceOryza sativae0
- Treatment
- overexpression of OsCSLD4e0
- Gene
- OsCSLD4e0
- Outcome
- ABA synthesis gene expressione0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overexpression of OsCSLD4 can enhance rice ABA synthesis gene expression”
Claim · model-written summary
OsCSLD4 overexpression increased rice ABA content.
- Taxon
- riceOryza sativae0
- Treatment
- overexpression of OsCSLD4e0
- Gene
- OsCSLD4e0
- Outcome
- ABA contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overexpression of OsCSLD4 can enhance rice ABA synthesis gene expression, increase ABA content and improve rice salt tolerance”
Claim · model-written summary
OsCSLD4 overexpression improved rice salt tolerance.
- Taxon
- riceOryza sativae0
- Treatment
- overexpression of OsCSLD4e0
- Gene
- OsCSLD4e0
- Outcome
- salt tolerancee0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overexpression of OsCSLD4 can enhance rice ABA synthesis gene expression, increase ABA content and improve rice salt tolerance”
Claim · model-written summary
The authors inferred that OsCSLD4 regulation of salt tolerance is mediated by ABA synthesis.
- Taxon
- riceOryza sativae0
- Gene
- OsCSLD4e0
- Outcome
- salt stress tolerancee0
- Qualifier
- mediated by ABA synthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OsCSLD4-regulated rice salt stress tolerance is mediated by ABA synthesis”
Claim · model-written summary
nd1 decreased rice osmotic stress tolerance.
- Taxon
- riceOryza sativae0
- Material
- nd1e0
- Treatment
- nd1e0
- Outcome
- tolerance to osmotic stresse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nd1 decreased rice tolerance to osmotic stress, but not ion toxic tolerance”
Claim · model-written summary
nd1 did not decrease rice ion toxic tolerance.
- Taxon
- riceOryza sativae0
- Material
- nd1e0
- Treatment
- nd1e0
- Outcome
- ion toxic tolerancee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nd1 decreased rice tolerance to osmotic stress, but not ion toxic tolerance”
Claim · model-written summary
More osmotic-responsive genes than salt-responsive genes were impaired in nd1.
- Taxon
- riceOryza sativat0
- Material
- nd1e0
- Gene
- osmotic stress-responsive genese0
- Outcome
- osmotic stress-responsive genes were impairede0
- Direction
- moree0
- Comparator
- salt stress-responsive genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more osmotic stress-responsive genes were impaired in nd1 than salt stress-responsive genes”
t0“rice”
Claim · model-written summary
The authors inferred an ABA-induced osmotic response pathway for OsCSLD4-associated rice salt response.
- Taxon
- riceOryza sativae0
- Gene
- OsCSLD4e0
- Outcome
- salt stress responsee0
- Qualifier
- ABA-induced osmotic response pathwaye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OsCSLD4 is involved in rice salt stress response through an ABA-induced osmotic response pathway”
Claim · model-written summary
Disrupting OsCSLD4 reduced grain width and weight.
- Taxon
- riceOryza sativat0
- Treatment
- disruption of OsCSLD4 functione0
- Gene
- OsCSLD4e0
- Outcome
- grain width and weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the disruption of OsCSLD4 function decreased grain width and weight”
t0“rice”
Claim · model-written summary
OsCSLD4 overexpression increased grain width and weight.
- Taxon
- riceOryza sativat0
- Treatment
- overexpression of OsCSLD4e0
- Gene
- OsCSLD4e0
- Outcome
- grain width and weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overexpression of OsCSLD4 increased grain width and weight”
t0“rice”
The same questions in other papers
(+)-abscisic acid · tolerance: abiotic · Oryza sativa (rice)Results differ
8 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
7 papers more in this group
See all 11 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.