Gene Details:

• Gene ID: Solyc01g108280
• Gene Symbol: SlOST1
• Gene Name: OPEN STOMATA
• Genome: Tomato Genome version SL4.0
• Species: Solanum lycopersicum

Functional Descriptions:

• The tomato OST1–VOZ1 module regulates drought-mediated flowering.
• Demonstrated that loss of function of tomato OPEN STOMATA 1 (SlOST1), a protein kinase essential for abscisic acid (ABA) signaling and abiotic stress responses, lowers the tolerance of tomato plants to drought stress.
• SlOST1 mutants also exhibited a late flowering phenotype under both normal and drought stress conditions.
• We also established that SlOST1 directly interacts with and phosphorylates the NAC (NAM, ATAF and CUC)-type transcription factor VASCULAR PLANT ONE-ZINC FINGER 1 (SlVOZ1), at residue serine 67, thereby enhancing its stability and nuclear translocation in an ABA-dependent manner.
• Collectively, our data uncover the essential role of the SlOST1–SlVOZ1 module in regulating flowering in response to drought stress in tomato and offer insights into a novel strategy to balance drought stress response and flowering.

Function-related keywords:

• transcription-factor ,  kinase ,  drought ,  stress ,  drought-stress ,  tolerance ,  abiotic-stress ,  aba ,  drought-tolerance ,  stress-tolerance ,  zinc ,  abscisic-acid ,  protein-kinase ,  flowering ,  stomata ,  stress-response ,  drought-stress-response ,  drought-response ,  abiotic-stress-response ,  protein

Literature:

• The tomato OST1-VOZ1 module regulates drought-mediated flowering.   DOI:  10.1093/plcell/koac026 ;  PMID:  35099557

Related News:

Gene Resources:

• NCBI ID: 101268620
• UniProt accessions: A0A3Q7EU17

Orthologs:

Sequences: