Gene Details:

• MSU gene ID: LOC_Os02g43330
• RAPdb gene ID: Os02g0649300
• Gene Symbol: OsHOX24
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Characterization of Rice Homeobox Genes, OsHOX22 and OsHOX24, and Over-expression of OsHOX24 in Transgenic Arabidopsis Suggest Their Role in Abiotic Stress Response.
• Over-expression of OsHOX24 imparted higher sensitivity to stress hormone, ABA, and abiotic stresses in the transgenic Arabidopsis plants as revealed by various physiological and phenotypic assays.
• In this study, we carried out functional analysis of two candidate stress-responsive HD-ZIP I class homeobox genes from rice, OsHOX22, and OsHOX24.
• OsHOX24 over-expression rice seedlings showed reduced root and shoot growth under salinity and desiccation stress (DS) conditions.
• In the present study, we raised rice transgenics over-expressing stress-responsive OsHOX24 gene (rice homeodomain-leucine zipper I sub-family member) and analyzed their response to various abiotic stresses at different stages of development.
• At the seed germination stage, rice transgenics over-expressing OsHOX24 exhibited enhanced sensitivity to abiotic stress conditions and abscisic acid as compared to wild-type (WT).
• Over-Expression of OsHOX24 Confers Enhanced Susceptibility to Abiotic Stresses in Transgenic Rice via Modulating Stress-Responsive Gene Expression.
• Taken together, our findings highlighted the role of OsHOX24 in regulation of abiotic stress responses via modulating the expression of stress-responsive genes in rice.
• OsHOX24 mediates regulation of desiccation stress response via complex regulatory network as indicated by its binding to several target genes including transcription factors in rice.
• Gene ontology enrichment analysis revealed that OsHOX24 direct target genes were involved in several biological processes, including plant development, ABA-mediated signalling pathway, ubiquitin-dependent protein catabolic process, ion transport, abiotic and biotic stress responses besides transcriptional and translational regulation.
• In this study, we identified downstream targets of OsHOX24 under control and desiccation stress conditions via chromatin immunoprecipitation-sequencing (ChIP-seq) approach in wild-type and OsHOX24 over-expression transgenic in rice.

Function-related keywords:

• abiotic-stress ,  stress ,  biotic-stress ,  stress-response ,  homeobox-gene ,  seedlings ,  root ,  growth ,  shoot ,  development ,  seed ,  salinity ,  seed-germination ,  abscisic-acid ,  transcription-factor ,  plant-development

Literature:

• Characterization of Rice Homeobox Genes, OsHOX22 and OsHOX24, and Over-expression of OsHOX24 in Transgenic Arabidopsis Suggest Their Role in Abiotic Stress Response .  DOI:  10.3389/fpls.2016.00627 ;  PMID:  27242831
• Over-Expression of OsHOX24 Confers Enhanced Susceptibility to Abiotic Stresses in Transgenic Rice via Modulating Stress-Responsive Gene Expression .  DOI:  10.3389/fpls.2017.00628 ;  PMID:  28484484
• Genome-wide discovery of OsHOX24-binding sites and regulation of desiccation stress response in rice .  DOI:  10.1007/s11103-020-01078-9 ;  PMID:  33025523
• A comprehensive transcriptome analysis of contrasting rice cultivars highlights the role of auxin and ABA responsive genes in heat stress response .  DOI:  10.1016/j.ygeno.2021.03.007 ;  PMID:  33705886

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: