Ethylene Response Factor TERF1, Regulated by ETHYLENE-INSENSITIVE3-like Factors, Functions in Reactive Oxygen Species (ROS) Scavenging in Tobacco (Nicotiana tabacum L.)

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.

Medienart:

E-Artikel

Erscheinungsjahr:

2016

Erschienen:

2016

Enthalten in:

Zur Gesamtaufnahme - volume:6

Enthalten in:

Scientific reports - 6(2016) vom: 20. Juli, Seite 29948

Sprache:

Englisch

Beteiligte Personen:

Zhang, Hongbo [VerfasserIn]
Li, Ang [VerfasserIn]
Zhang, Zhijin [VerfasserIn]
Huang, Zejun [VerfasserIn]
Lu, Pingli [VerfasserIn]
Zhang, Dingyu [VerfasserIn]
Liu, Xinmin [VerfasserIn]
Zhang, Zhong-Feng [VerfasserIn]
Huang, Rongfeng [VerfasserIn]

Links:

Volltext

Themen:

91GW059KN7
BBX060AN9V
Ethylene
Ethylenes
Free Radical Scavengers
Hydrogen Peroxide
Journal Article
Plant Proteins
Reactive Oxygen Species
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 04.06.2018

Date Revised 13.12.2023

published: Electronic

Citation Status MEDLINE

doi:

10.1038/srep29948

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM262594404