Abstract
Ethylene plays an important role in regulating root growth; however, its role in root growth under low potassium (LK) stress remains unclear. Here, we report that ethylene inhibits gibberellin (GA) and enhances root growth and potassium (K+) uptake in tomato (Solanum lycopersicum) under LK stress. Previously, we identified an LK-tolerant phospholipase Dδ, SlPLDδ, which interacts with 1-aminocyclopropane-1-carboxylic acid (ACC) oxidase 1 (SlACO1) to negatively regulate ethylene content. Ethylene treatment induces expression of the ethylene response transcription factor SlERN1 under LK stress, and SlERN1 plays a negative role in root growth and K+ uptake in tomatoes. Further investigation revealed that SlERN1 represses the expression of the GA biosynthesis genes GIBBERELLIN 20-OXIDASE 1 (SlGA20ox1) and SlGA2ox3, decreasing GA activity and gradually inhibiting root growth and K+ uptake. Silencing SlGA20ox1/3 reduced the ethylene sensitivity in root growth and K+ uptake. Additionally, SlERN1 represses the expression of voltage-gated K+ channel (SlLKT1) to regulate K+ and magnesium ion (Mg2+) transport. Genetic analysis revealed that SlGA20ox1/3 and SlLKT1 function downstream of SlERN1. Overall, we identified a molecular pathway affected by ethylene during LK stress in tomatoes and provided insights into the coordination of ethylene and GA signals during LK-inhibited root growth and K+ uptake.
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Claims 16
Claim · model-written summary
Ethylene inhibits gibberellin in tomato under low potassium stress.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- ethylenee0
- Outcome
- gibberellin (GA)e0
- Direction
- inhibitse0
- Qualifier
- under LK stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ethylene inhibits gibberellin (GA) and enhances root growth and potassium (K+) uptake in tomato (Solanum lycopersicum) under LK stress.”
Claim · model-written summary
Ethylene enhances tomato root growth under low potassium stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- ethylenee0
- Outcome
- root growthe0
- Direction
- enhancese0
- Qualifier
- under LK stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ethylene inhibits gibberellin (GA) and enhances root growth and potassium (K+) uptake in tomato (Solanum lycopersicum) under LK stress.”
Claim · model-written summary
Ethylene enhances tomato potassium uptake under low potassium stress.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- ethylenee0
- Outcome
- potassium (K+) uptakee0
- Direction
- enhancese0
- Qualifier
- under LK stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ethylene inhibits gibberellin (GA) and enhances root growth and potassium (K+) uptake in tomato (Solanum lycopersicum) under LK stress.”
Claim · model-written summary
SlPLDδ interacts with SlACO1 to negatively regulate tomato ethylene content.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- SlPLDδe0
- Outcome
- ethylene contente0
- Direction
- negativelye0
- Qualifier
- interacts with 1-aminocyclopropane-1-carboxylic acid (ACC) oxidase 1 (SlACO1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an LK-tolerant phospholipase Dδ, SlPLDδ, which interacts with 1-aminocyclopropane-1-carboxylic acid (ACC) oxidase 1 (SlACO1) to negatively regulate ethylene content.”
t0“tomato”
Claim · model-written summary
Ethylene treatment induces SlERN1 expression under low potassium stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ethylene treatmente0
- Gene
- SlERN1e0
- Outcome
- expression of the ethylene response transcription factor SlERN1e0
- Direction
- inducese0
- Qualifier
- under LK stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene treatment induces expression of the ethylene response transcription factor SlERN1 under LK stress”
t0“tomato”
Claim · model-written summary
SlERN1 negatively regulates tomato root growth.
- Taxon
- tomatoesSolanum lycopersicume0
- Gene
- SlERN1e0
- Outcome
- root growthe0
- Direction
- negativee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SlERN1 plays a negative role in root growth and K+ uptake in tomatoes.”
Claim · model-written summary
SlERN1 negatively regulates tomato K+ uptake.
- Taxon
- tomatoesSolanum lycopersicume0
- Gene
- SlERN1e0
- Outcome
- K+ uptakee0
- Direction
- negativee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SlERN1 plays a negative role in root growth and K+ uptake in tomatoes.”
Claim · model-written summary
SlERN1 represses SlGA20ox1 and SlGA2ox3 expression.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- SlERN1e0
- Outcome
- expression of the GA biosynthesis genes GIBBERELLIN 20-OXIDASE 1 (SlGA20ox1) and SlGA2ox3e0
- Direction
- repressese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SlERN1 represses the expression of the GA biosynthesis genes GIBBERELLIN 20-OXIDASE 1 (SlGA20ox1) and SlGA2ox3”
t0“tomato”
Claim · model-written summary
SlERN1 decreases GA activity.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- SlERN1e0
- Outcome
- GA activitye0
- Direction
- decreasinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SlERN1 represses the expression of the GA biosynthesis genes GIBBERELLIN 20-OXIDASE 1 (SlGA20ox1) and SlGA2ox3, decreasing GA activity and gradually inhibiting root growth and K+ uptake.”
t0“tomato”
Claim · model-written summary
SlERN1 gradually inhibits tomato root growth.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- root growthe0
- Direction
- inhibitinge0
- Qualifier
- GA activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreasing GA activity and gradually inhibiting root growth and K+ uptake.”
t0“tomato”
Claim · model-written summary
SlERN1 gradually inhibits tomato K+ uptake.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- K+ uptakee0
- Direction
- inhibitinge0
- Qualifier
- GA activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreasing GA activity and gradually inhibiting root growth and K+ uptake.”
t0“tomato”
Claim · model-written summary
Silencing SlGA20ox1/3 reduced ethylene sensitivity of root growth.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Silencing SlGA20ox1/3e0
- Outcome
- ethylene sensitivity in root growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silencing SlGA20ox1/3 reduced the ethylene sensitivity in root growth and K+ uptake.”
t0“tomato”
Claim · model-written summary
Silencing SlGA20ox1/3 reduced ethylene sensitivity of K+ uptake.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Silencing SlGA20ox1/3e0
- Outcome
- ethylene sensitivity in root growth and K+ uptakee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silencing SlGA20ox1/3 reduced the ethylene sensitivity in root growth and K+ uptake.”
t0“tomato”
Claim · model-written summary
SlERN1 represses SlLKT1 expression.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- SlERN1e0
- Outcome
- expression of voltage-gated K+ channel (SlLKT1)e0
- Direction
- repressese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SlERN1 represses the expression of voltage-gated K+ channel (SlLKT1) to regulate K+ and magnesium ion (Mg2+) transport.”
t0“tomato”
Claim · model-written summary
SlERN1 regulation of SlLKT1 affects K+ and Mg2+ transport.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- SlLKT1e0
- Outcome
- K+ and magnesium ion (Mg2+) transporte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SlERN1 represses the expression of voltage-gated K+ channel (SlLKT1) to regulate K+ and magnesium ion (Mg2+) transport.”
t0“tomato”
Claim · model-written summary
SlGA20ox1/3 and SlLKT1 function downstream of SlERN1.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- SlERN1e0
- Outcome
- SlGA20ox1/3 and SlLKT1 function downstreame0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genetic analysis revealed that SlGA20ox1/3 and SlLKT1 function downstream of SlERN1.”
t0“tomato”
The same questions in other papers
ethene · growth · Solanum lycopersicum (tomato)Results differ
9 papers in the same direction as this paper · 12 in the opposite direction
- negative
- no effect
- negative
18 papers more in this group
See all 22 papers →ethene · physiology: ion balance · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
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.