Abstract
The phytohormone ethylene plays a crucial role in the production and accumulation of reactive oxygen species (ROS) in plants under stress conditions. Ethylene response factors (ERFs) are important ethylene-signaling regulators functioning in plant defense responses against biotic and abiotic stresses. However, the roles of ERFs during plant adapting to ROS stress have not yet been well documented. Our studies previously reported that a tomato ERF transcription factor TERF1 functions in the regulation of plant ethylene responses and stress tolerance. Here, we report our findings regarding the roles of TERF1 in ROS scavenging. In this study, we revealed that the transcription of TERF1 is regulated by upstream EIN3-like (EIN3, ethylene-insensitive 3) regulators LeEIL3 and LeEIL4 in tomato (Solanum lycopersicum), and is also inducible by exogenous applied ROS-generating reagents. Ectopic expression of TERF1 in tobacco promoted the expression of genes involved in oxidative stress responses, including carbonic anhydrase functioning in hypersensitive defense, catalase and glutathione peroxidase catalyzing oxidative reactions, and GDP-D-mannose pyrophosphorylase functioning in ascorbic acid biosynthesis, reduced the ROS content induced by ethylene treatment, and enhanced stress tolerance of tobacco seedlings to hydrogen peroxide (H2O2). Cumulatively, these findings suggest that TERF1 is an ethylene inducible factor regulating ROS scavenging during stress responses.
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Claims 5
Claim · model-written summary
LeEIL3 and LeEIL4 regulate tomato TERF1 transcription.
- Taxon
- tomato (Solanum lycopersicum)
Solanum lycopersicume0 - Gene
- TERF1e0
- Outcome
- transcription of TERF1e0
- Qualifier
- LeEIL3 and LeEIL4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the transcription of TERF1 is regulated by upstream EIN3-like (EIN3, ethylene-insensitive 3) regulators LeEIL3 and LeEIL4 in tomato (Solanum lycopersicum)”
Claim · model-written summary
ROS generating reagents induced TERF1 transcription.
- Taxon
- tomato (Solanum lycopersicum)Solanum lycopersicume0
- Treatment
- exogenous applied ROS-generating reagentse0
- Outcome
- transcription of TERF1e0
- Direction
- induciblee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the transcription of TERF1 is regulated by upstream EIN3-like (EIN3, ethylene-insensitive 3) regulators LeEIL3 and LeEIL4 in tomato (Solanum lycopersicum), and is also inducible by exogenous applied ROS-generating reagents”
Claim · model-written summary
Ectopic TERF1 expression promoted oxidative stress response genes in tobacco.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- Ectopic expression of TERF1e0
- Outcome
- expression of genes involved in oxidative stress responsese0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ectopic expression of TERF1 in tobacco promoted the expression of genes involved in oxidative stress responses, including carbonic anhydrase functioning in hypersensitive defense, catalase and glutathione peroxidase catalyzing oxidative reactions, and GDP-D-mannose pyrophosphorylase functioning in ascorbic acid biosynthesis”
Claim · model-written summary
Ectopic TERF1 expression reduced ethylene induced ROS in tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Ectopic expression of TERF1e0
- Outcome
- ROS contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ectopic expression of TERF1 in tobacco promoted the expression of genes involved in oxidative stress responses, including carbonic anhydrase functioning in hypersensitive defense, catalase and glutathione peroxidase catalyzing oxidative reactions, and GDP-D-mannose pyrophosphorylase functioning in ascorbic acid biosynthesis, reduced the ROS content induced by ethylene treatment”
Claim · model-written summary
Ectopic TERF1 expression enhanced tobacco seedling tolerance to hydrogen peroxide.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Ectopic expression of TERF1e0
- Outcome
- stress tolerance of tobacco seedlings to hydrogen peroxide (H2O2)e0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ectopic expression of TERF1 in tobacco promoted the expression of genes involved in oxidative stress responses, including carbonic anhydrase functioning in hypersensitive defense, catalase and glutathione peroxidase catalyzing oxidative reactions, and GDP-D-mannose pyrophosphorylase functioning in ascorbic acid biosynthesis, reduced the ROS content induced by ethylene treatment, and enhanced stress tolerance of tobacco seedlings to hydrogen peroxide (H2O2)”
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