Abstract
Understanding physiological and molecular basis of plant response and tolerance to environmental constraints and abiotic stresses is important to improve plant survival, crop yield and quality. Auxin controls many aspects of plant growth and development. This phytohormone acts on the transcriptional regulation of target genes, mainly through Auxin Response Factors (ARF). However, its role in stress responses remains so far poorly studied. The current study provide clues supporting the involvement of an auxin response factor; ARF4 in tomato tolerance to salt stress. Using a reverse genetic approach, we found that the down-regulation of an auxin response factor; SlARF4 improves tomato tolerance to salt by promoting root development and density and maintaining good development and high chlorophyll content under salt stress conditions. Our results bring new elements on auxin involvement in plant stress responses and underline the role of ARF4 in salt tolerance. These provide new insights into tomato selection and breeding for environmental stress-tolerant.
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Claims 5
Claim · model-written summary
SlARF4 down-regulation improved tomato tolerance to salt.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- down-regulation of an auxin response factor; SlARF4e0
- Gene
- SlARF4e0
- Outcome
- tolerance to salte0
- Direction
- improvese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“down-regulation of an auxin response factor; SlARF4 improves tomato tolerance to salt by promoting root development and density and maintaining good development and high chlorophyll content under salt stress conditions.”
Claim · model-written summary
SlARF4 down-regulation promoted tomato root development and density under salt stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- down-regulation of an auxin response factor; SlARF4e0
- Gene
- SlARF4e0
- Outcome
- root development and densitye0
- Direction
- promotinge0
- Qualifier
- under salt stress conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“down-regulation of an auxin response factor; SlARF4 improves tomato tolerance to salt by promoting root development and density and maintaining good development and high chlorophyll content under salt stress conditions.”
Claim · model-written summary
SlARF4 down-regulation maintained good tomato development under salt stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- down-regulation of an auxin response factor; SlARF4e0
- Gene
- SlARF4e0
- Outcome
- good developmente0
- Direction
- maintaininge0
- Qualifier
- under salt stress conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“down-regulation of an auxin response factor; SlARF4 improves tomato tolerance to salt by promoting root development and density and maintaining good development and high chlorophyll content under salt stress conditions.”
Claim · model-written summary
SlARF4 down-regulation maintained high tomato chlorophyll content under salt stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- down-regulation of an auxin response factor; SlARF4e0
- Gene
- SlARF4e0
- Outcome
- high chlorophyll contente0
- Direction
- maintaininge0
- Qualifier
- under salt stress conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“down-regulation of an auxin response factor; SlARF4 improves tomato tolerance to salt by promoting root development and density and maintaining good development and high chlorophyll content under salt stress conditions.”
Claim · model-written summary
The authors propose SlARF4 as relevant to breeding stress-tolerant tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- tomato selection and breeding for environmental stress-tolerante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These provide new insights into tomato selection and breeding for environmental stress-tolerant.”
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