Differential regulation of rice mitogen activated protein kinase kinase (MKK) by abiotic stress

Mitogen activated protein kinase cascade plays a crucial role in various biotic and abiotic stresses, hormones, cell division and developmental processes. MAP kinase kinase being integral part of this cascade performs an important function of integrating upstream signals to mitogen activated protein...

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Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 46(2008), 10 vom: 22. Okt., Seite 891-7
1. Verfasser: Kumar, Kundan (VerfasserIn)
Weitere Verfasser: Rao, Kudupudi Prabhakara, Sharma, Pallavi, Sinha, Alok Krishna
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Research Support, Non-U.S. Gov't DNA Primers Mitogen-Activated Protein Kinases EC 2.7.11.24
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520 |a Mitogen activated protein kinase cascade plays a crucial role in various biotic and abiotic stresses, hormones, cell division and developmental processes. MAP kinase kinase being integral part of this cascade performs an important function of integrating upstream signals to mitogen activated protein kinase for further appropriate cellular responses. We here report cloning of five MAP kinase kinase members from Oryza sativa indica cultivar var. Pusa Basmati 1, namely MAP kinase kinases 1, 3, 4, 6 and 10-2. All these members, except MKK10-2 possess fully canonical motif structures of MAP kinase kinase. The deduced amino acid sequence showed changes at certain position within japonica and indica variety of rice. Analysis of transcript regulation by quantitative real time PCR revealed that these five members are differentially regulated by cold, heat, salinity and drought stresses. MAP kinase kinases 4 and 6 are strongly regulated by cold and salt stresses while MAP kinase kinase 1 is regulated by salt and drought stresses. MAP kinase kinase 10-2 is regulated only by cold stress. The study provides the indication of involvement of specific MAP kinase kinase in different abiotic stress signaling and also possible cross talks that exist during the signaling processes 
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700 1 |a Sharma, Pallavi  |e verfasserin  |4 aut 
700 1 |a Sinha, Alok Krishna  |e verfasserin  |4 aut 
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