Tissue-specific regulation of rice molybdenum cofactor sulfurase gene in response to salt stress and ABA

• Autorzy: Huang P.-M. , Chen J.-Y. , Wang S.-J.
• Języki publikacji: EN

Abstrakty

EN

Molybdenum-containing aldehyde oxidase is a key enzyme for catalyzing the final step of abscisic acid (ABA) biosynthesis in plants. Sulfuration of the molybdenum cofactor (MoCo) is an essential step for activating aldehyde oxidase. The molybdenum cofactor sulfurase (MCSU) that transfers the sulfur ligand to aldehyde oxidase-bound MoCo is thus considered an important factor in regulating the ABA levels in plant tissues. In this study, we identified the rice MCSU cDNA (OsMCSU), which is the first MCSU gene cloned in monocot species. According to the functional domain analysis of the predicted amino acid sequence, the OsMCSU protein contains a Nifs domain at its N-terminus and a MOSC domain at the C-terminus. Expression of the OsMCSU gene was up-regulated by salt stress in root tissues of rice seedlings, but this effect was not observed in leaf tissues. In roots, regulations of OsMCSU expressions could be mediated by both ABAdependent and ABA-independent signaling pathways under salt stress condition.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2009
• Tom: 31
• Numer: 3
• Opis fizyczny: p.545-551,fig.,ref.

Twórcy

autor

Huang P.-M.

• Department of Agronomy, National Taiwan University, No. 1, Sect. 4, Roosevelt Rd, Taipei 106, Taiwan

autor

Chen J.-Y.

• Department of Agronomy, National Taiwan University, No. 1, Sect. 4, Roosevelt Rd, Taipei 106, Taiwan

autor

Wang S.-J.

• Department of Agronomy, National Taiwan University, No. 1, Sect. 4, Roosevelt Rd, Taipei 106, Taiwan

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