OsTZF1

2015-01-20 | Categories genes  | Tags shoot  salt  panicle  homeostasis  leaf  sheath  growth  seedling  salicylic acid  drought  senescence  seed  salt stress  ABA  seed germination  jasmonate 

• Information
  • Symbol: OsTZF1
  • MSU: LOC_Os05g10670
  • RAPdb: Os05g0195101
• Publication
  • Overexpression of a phytochrome-regulated tandem zinc finger protein gene, OsTZF1, confers hypersensitivity to ABA and hyposensitivity to red light and far-red light in rice seedlings, 2012, Plant Cell Rep.
  • OsTZF1, a CCCH-tandem zinc finger protein, confers delayed senescence and stress tolerance in rice by regulating stress-related genes, 2013, Plant Physiol.
  • OsTZF1, a CCCH-tandem zinc finger protein gene, driven under own promoter produces no pleiotropic effects and confers salt and drought tolerance in rice., 2022, Plant Signal Behav.
• Genbank accession number
  • AK106392
• Key message
  • The OsTZF1 gene was expressed at relatively high levels in leaves and shoots, although its transcripts were detected in various organs
  • Expression of OsTZF1 was induced by drought, high-salt stress, and hydrogen peroxide
  • Ubi:OsTZF1-OX plants showed improved tolerance to high-salt and drought stresses and vice versa for OsTZF1-RNAi plants
  • Histochemical activity of beta-glucuronidase in transgenic rice plants containing the promoter of OsTZF1 fused with beta-glucuronidase was observed in callus, coleoptile, young leaf, and panicle tissues
  • In addition, OsTZF1 expression was regulated by salt, PEG, and ABA
  • Microarray analysis revealed that genes related to stress, reactive oxygen species homeostasis, and metal homeostasis were regulated in the Ubi:OsTZF1-OX plants
  • Overexpression of OsTZF1 caused a long leaf sheath relative to wild type (WT) under R and FR, suggesting that OsTZF1 probably acts as a negative regulator of photomorphogenesis in rice seedlings
  • Transgenic rice plants overexpressing OsTZF1 driven by a maize (Zea mays) ubiquitin promoter (Ubi:OsTZF1-OX [for overexpression]) exhibited delayed seed germination, growth retardation at the seedling stage, and delayed leaf senescence
  • RNA interference (RNAi) knocked-down plants (OsTZF1-RNAi) showed early seed germination, enhanced seedling growth, and early leaf senescence compared with controls
  • Here, we investigated a cytoplasmic TZF protein, OsTZF1, which is involved in photomorphogenesis and ABA responses in rice seedlings
  • Moreover, ABA-induced growth inhibition of rice seedlings was marked in the OsTZF1-overexpression lines compared with WT, suggesting the positive regulation of OsTZF1 to ABA responses
  • Overexpression of a phytochrome-regulated tandem zinc finger protein gene, OsTZF1, confers hypersensitivity to ABA and hyposensitivity to red light and far-red light in rice seedlings
  • OsTZF1 gene expression was also induced by abscisic acid, methyl jasmonate, and salicylic acid
  • OsTZF1, a CCCH-tandem zinc finger protein, confers delayed senescence and stress tolerance in rice by regulating stress-related genes
  • KEY MESSAGE: OsTZF1 encodes a cytoplasm-localized tandem zinc finger protein and is regulated by both ABA and phytochrome-mediated light signaling
  • OsTZF1 functions in phytochrome-mediated light and ABA responses in rice
  • Here, we report that transgenic rice plants overexpressing OsTZF1 under own promoter (P(OsTZF1):OsTZF1-OX [for overexpression]) transferred to soil showed normal growth similar to vector control plants
• Connection

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