Abstract
Potassium deficiency confines root growth and decreases root-to-shoot ratio, thereby limiting root K+ acquisition. This study aimed to identify the regulation network of microRNA319 involved in low-K+ stress tolerance in tomato (Solanum lycopersicum). SlmiR319b-OE roots demonstrated a smaller root system, a lower number of root hairs and lower K+ content under low-K+ stress. We identified SlTCP10 as the target of miR319b using a modified RLM-RACE procedure from some SlTCPs’ predictive complementarity to miR319b. Then, SlTCP10-regulated SlJA2 (an NAC transcription factor) influenced the response to low-K+ stress. CR-SlJA2 (CRISPR-Cas9-SlJA2) lines showed the same root phenotype to SlmiR319-OE compared with WT lines. OE-SlJA2(Overexpression-SlJA2) lines showed higher root biomass, root hair number and K+ concentration in the roots under low-K+ conditions. Furthermore, SlJA2 has been reported to promote abscisic acid (ABA) biosynthesis. Therefore, SlJA2 increases low-K+ tolerance via ABA. In conclusion, enlarging root growth and K+ absorption by the expression of SlmiR319b-regulated SlTCP10, mediating SlJA2 in roots, could provide a new regulation mechanism for increasing K+ acquisition efficiency under low-K+ stress.
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Claims 8
Claim · model-written summary
SlmiR319b-OE tomato roots had a smaller root system under low-K+ stress.
- Taxon
- tomato
Solanum lycopersicume1 - Material
- SlmiR319b-OEe2
- Organ / stage
- rootse2
- Treatment
- low-K+ stresse2
- Outcome
- root systeme2
- Direction
- smallere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This study aimed to identify the regulation network of microRNA319 involved in low-K+ stress tolerance in tomato (Solanum lycopersicum)”
e2“SlmiR319b-OE roots demonstrated a smaller root system, a lower number of root hairs and lower K+ content under low-K+ stress”
Claim · model-written summary
SlmiR319b-OE tomato roots had a lower number of root hairs under low-K+ stress.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- SlmiR319b-OEe2
- Organ / stage
- rootse2
- Treatment
- low-K+ stresse2
- Outcome
- number of root hairse2
- Direction
- lowere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This study aimed to identify the regulation network of microRNA319 involved in low-K+ stress tolerance in tomato (Solanum lycopersicum)”
e2“SlmiR319b-OE roots demonstrated a smaller root system, a lower number of root hairs and lower K+ content under low-K+ stress”
Claim · model-written summary
SlmiR319b-OE tomato roots had lower K+ content under low-K+ stress.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- SlmiR319b-OEe2
- Organ / stage
- rootse2
- Treatment
- low-K+ stresse2
- Outcome
- K+ contente2
- Direction
- lowere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This study aimed to identify the regulation network of microRNA319 involved in low-K+ stress tolerance in tomato (Solanum lycopersicum)”
e2“SlmiR319b-OE roots demonstrated a smaller root system, a lower number of root hairs and lower K+ content under low-K+ stress”
Claim · model-written summary
SlTCP10 was identified as the target of miR319b in tomato.
- Taxon
- tomatoSolanum lycopersicume1
- Gene
- SlTCP10e3
- Outcome
- target of miR319be3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This study aimed to identify the regulation network of microRNA319 involved in low-K+ stress tolerance in tomato (Solanum lycopersicum)”
e3“We identified SlTCP10 as the target of miR319b”
Claim · model-written summary
SlTCP10-regulated SlJA2 influenced the response of tomato to low-K+ stress.
- Taxon
- tomatoSolanum lycopersicume1
- Gene
- SlJA2e4
- Outcome
- response to low-K+ stresse4
- Qualifier
- SlTCP10-regulatede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This study aimed to identify the regulation network of microRNA319 involved in low-K+ stress tolerance in tomato (Solanum lycopersicum)”
e4“Then, SlTCP10-regulated SlJA2 (an NAC transcription factor) influenced the response to low-K+ stress”
Claim · model-written summary
CR-SlJA2 tomato lines showed the same root phenotype as SlmiR319-OE compared with WT lines.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- CR-SlJA2e5
- Treatment
- CRISPR-Cas9e5
- Outcome
- root phenotypee5
- Direction
- samee5
- Comparator
- WT linese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This study aimed to identify the regulation network of microRNA319 involved in low-K+ stress tolerance in tomato (Solanum lycopersicum)”
e5“CR-SlJA2 (CRISPR-Cas9-SlJA2) lines showed the same root phenotype to SlmiR319-OE compared with WT lines”
Claim · model-written summary
OE-SlJA2 tomato lines had higher root biomass, root hair number and K+ concentration in roots under low-K+ conditions.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- OE-SlJA2e6
- Organ / stage
- rootse6
- Treatment
- low-K+ conditionse6
- Outcome
- root biomass, root hair number and K+ concentratione6
- Direction
- highere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This study aimed to identify the regulation network of microRNA319 involved in low-K+ stress tolerance in tomato (Solanum lycopersicum)”
e6“OE-SlJA2(Overexpression-SlJA2) lines showed higher root biomass, root hair number and K+ concentration in the roots under low-K+ conditions”
Claim · model-written summary
SlJA2 increases low-K+ tolerance in tomato via ABA.
- Taxon
- tomatoSolanum lycopersicume1
- Gene
- SlJA2e7
- Compound
- ABAe7
- Outcome
- low-K+ tolerancee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This study aimed to identify the regulation network of microRNA319 involved in low-K+ stress tolerance in tomato (Solanum lycopersicum)”
e7“Therefore, SlJA2 increases low-K+ tolerance via ABA”
The same questions in other papers
potassium · growth · Solanum lycopersicum (tomato)Results differ
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