title: From pioneers to team players: TGA transcription factors provide a molecular link between different stress pathways.
abstract: The plant immune system encompasses an arsenal of defense genes that is activated upon recognition of a pathogen. Appropriate adjustment of gene expression is mediated by multiple interconnected signal transduction cascades that finally control the activity of transcription factors. These sequence-specific DNA-binding proteins act at the interface between the DNA and the regulatory protein network. In 1989, tobacco TGA1a was cloned as the first plant transcription factor. Since then, multiple studies have shown that members of the TGA family play important roles in defense responses against biotrophic and necrotrophic pathogens and against chemical stress. Here, we review 22 years of research on TGA factors which have yielded both consistent and conflicting results.
authors.affiliation: Georg-August-University of Göttingen (GAU), Albrecht-von-Haller-Institute for Plant Sciences, Julia-Lermontowa-Weg 3, 37077 Göttingen, Germany. cgatz@uni-goettingen.de
authors.forename: Christiane
authors.initials: C
authors.lastname: Gatz
mesh_terms: D050976:Basic-Leucine Zipper Transcription Factors / Q000235:genetics*; D004268:DNA-Binding Proteins / Q000235:genetics; D018506:Gene Expression Regulation, Plant; D010935:Plant Diseases / Q000276:immunology*; D057865:Plant Immunity / Q000235:genetics*; D018521:Plant Physiological Phenomena; D010940:Plant Proteins / Q000235:genetics*; D015398:Signal Transduction; D013312:Stress, Physiological; D014026:Nicotiana / Q000235:genetics* / Q000276:immunology / Q000502:physiology; D014157:Transcription Factors / Q000235:genetics
chemical_list: D050976:Basic-Leucine Zipper Transcription Factors; D004268:DNA-Binding Proteins; D010940:Plant Proteins; C065794:TGA1a protein, Nicotiana tabacum; D014157:Transcription Factors