Gene Details:

• Gene ID: Solyc05g015850
• Gene Symbol: SlWRKY75
• Gene Name: WRKY transcription factor75
• Genome: Tomato Genome version SL4.0
• Species: Solanum lycopersicum

Functional Descriptions:

• Here, we characterized tomato (Solanum lycopersicum) SlWRKY75, which promotes defenses against P. syringae pv. tomato (Pst) DC3000 by regulating plant auxin homeostasis.
• Overexpressing SlWRKY75 resulted in low free indole-3-acetic acid (IAA) levels, leading to attenuated auxin signaling, decreased expansin transcript levels, upregulated expression of PATHOGENESIS-RELATED GENES (PRs) and NONEXPRESSOR OF PATHOGENESIS-RELATED GENE 1 (NPR1), and enhanced tomato defenses against Pst DC3000.
• SlWRKY75 interacted with a tomato valine-glutamine (VQ) motif-containing protein 16 (SlVQ16) in vivo and in vitro.
• SlVQ16 enhanced SlWRKY75-mediated transcriptional activation of SlGH3.3 and promoted tomato defense responses to Pst DC3000. Our findings illuminate a mechanism in which the SlVQ16–SlWRKY75 complex participates in tomato pathogen defense by positively regulating SlGH3.3-mediated auxin homeostasis.

Function-related keywords:

• auxin ,  defense ,  pathogen ,  iaa ,  homeostasis ,  iaa-signaling ,  plant-defense-signaling ,  protein

Literature:

• Transcription factor WRKY75 maintains auxin homeostasis to promote tomato defense against Pseudomonas syringae.   DOI:  10.1093/plphys/kiae025 ;  PMID:  38245840

Related News:

Gene Resources:

• NCBI ID: 101251778
• UniProt accessions: A0A3Q7GE34

Orthologs:

Sequences: