Abstract
The spatial pattern distribution of plant hormones in response to aluminum (Al) toxicity in roots remains to be shown. This study was performed to assess the root hormonal accumulation and gene expression in response to Al toxicity in five transgenic miniature dwarf tomatoes cv. Micro-Tom (MT). MT and MT transgenics to acid indole acetic, cytokinin, gibberellin, abscisic acid and ethylene were cultivated in nutrient solutions containing different Al concentrations. Root growth elongation was measured and cellular damage was visualized by staining Evans’s blue. The GUS reporter gene staining technique was used to visualize hormonal changes in MT apex root tissues. Data indicated that the MT is sensitive to Al that induced significant growth inhibition and cellular damage. Al concentration of 27 μM was significantly toxic, inducing root apex darkening and inhibition of root development. The qualitative evaluation of GUS reporter gene expression showed intense crosstalk among all hormones studied, underscoring the complexity of signaling induced by Al in apex roots. Results point out to a major understanding of the hormonal signaling in response to Al toxicity, which may induce a change of root growth and architecture with growth inhibition and cell constraints modulated by all different hormones evaluated.
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Claims 5
Claim · model-written summary
Aluminum significantly inhibited Micro-Tom root growth and caused cellular damage.
- Taxon
- tomatoes cv. Micro-Tom (MT)
Solanum lycopersicumt0 - Treatment
- Ale0
- Outcome
- growth inhibition and cellular damagee0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Data indicated that the MT is sensitive to Al that induced significant growth inhibition and cellular damage”
t0“tomatoes cv. Micro-Tom (MT)”
Claim · model-written summary
At 27 μM, aluminum significantly darkened root apex tissue.
- Taxon
- tomatoes cv. Micro-Tom (MT)Solanum lycopersicumt0
- Organ / stage
- root apexe0
- Treatment
- Al concentration of 27 μMe0
- Outcome
- root apex darkeninge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al concentration of 27 μM was significantly toxic, inducing root apex darkening and inhibition of root development”
t0“tomatoes cv. Micro-Tom (MT)”
Claim · model-written summary
At 27 μM, aluminum inhibited root development.
- Taxon
- tomatoes cv. Micro-Tom (MT)Solanum lycopersicumt0
- Treatment
- Al concentration of 27 μMe0
- Outcome
- root developmente0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al concentration of 27 μM was significantly toxic, inducing root apex darkening and inhibition of root development”
t0“tomatoes cv. Micro-Tom (MT)”
Claim · model-written summary
GUS reporter expression qualitatively indicated crosstalk among studied hormones under aluminum stress.
- Taxon
- tomatoes cv. Micro-Tom (MT)Solanum lycopersicumt0
- Organ / stage
- apex rootse0
- Gene
- GUS reporter genee0
- Outcome
- intense crosstalk among all hormones studiede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The qualitative evaluation of GUS reporter gene expression showed intense crosstalk among all hormones studied, underscoring the complexity of signaling induced by Al in apex roots”
t0“tomatoes cv. Micro-Tom (MT)”
Claim · model-written summary
Authors interpreted aluminum-induced hormone signaling as modulating root architecture and growth inhibition.
- Taxon
- tomatoes cv. Micro-Tom (MT)Solanum lycopersicumt0
- Outcome
- change of root growth and architecturee0
- Qualifier
- growth inhibition and cell constraints modulated by all different hormones evaluatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results point out to a major understanding of the hormonal signaling in response to Al toxicity, which may induce a change of root growth and architecture with growth inhibition and cell constraints modulated by all different hormones evaluated”
t0“tomatoes cv. Micro-Tom (MT)”
The same questions in other papers
aluminium atom · disease · Solanum lycopersicum (tomato)Positive and negative results
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- negative
- positive
aluminium atom · growth · Solanum lycopersicum (tomato)Positive and negative results
8 papers in the same direction as this paper · 4 in the opposite direction
- no effect
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- negative
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