Rice A20/AN1 zinc-finger containing stress-associated proteins (SAP1/11) and a receptor-like cytoplasmic kinase (OsRLCK253) interact via A20 zinc-finger and confer abiotic stress tolerance in transgenic Arabidopsis plants

© 2011 The Authors. New Phytologist © 2011 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 191(2011), 3 vom: 02. Aug., Seite 721-732
1. Verfasser: Giri, Jitender (VerfasserIn)
Weitere Verfasser: Vij, Shubha, Dansana, Prasant K, Tyagi, Akhilesh K
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Plant Proteins Receptors, Cytoplasmic and Nuclear
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245 1 0 |a Rice A20/AN1 zinc-finger containing stress-associated proteins (SAP1/11) and a receptor-like cytoplasmic kinase (OsRLCK253) interact via A20 zinc-finger and confer abiotic stress tolerance in transgenic Arabidopsis plants 
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520 |a • The inbuilt mechanisms of plant survival have been exploited for improving tolerance to abiotic stresses. Stress-associated proteins (SAPs), containing A20/AN1 zinc-finger domains, confer abiotic stress tolerance in different plants, however, their interacting partners and downstream targets remain to be identified. • In this study, we have investigated the subcellular interactions of rice SAPs and their interacting partner using yeast two-hybrid and fluorescence resonance energy transfer (FRET) approaches. Their efficacy in improving abiotic stress tolerance was analysed in transgenic Arabidopsis plants. Regulation of gene expression by genome-wide microarray in transgenics was used to identify downstream targets. • It was found that the A20 domain mediates the interaction of OsSAP1 with self, its close homolog OsSAP11 and a rice receptor-like cytoplasmic kinase, OsRLCK253. Such interactions between OsSAP1/11 and with OsRLCK253 occur at nuclear membrane, plasma membrane and in nucleus. Functionally, both OsSAP11 and OsRLCK253 could improve the water-deficit and salt stress tolerance in transgenic Arabidopsis plants via a signaling pathway affecting the expression of several common endogenous genes. • Components of a novel stress-responsive pathway have been identified. Their stress-inducible expression provided the protection against yield loss in transgenic plants, indicating the agronomic relevance of OsSAP11 and OsRLCK253 in conferring abiotic stress tolerance 
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700 1 |a Dansana, Prasant K  |e verfasserin  |4 aut 
700 1 |a Tyagi, Akhilesh K  |e verfasserin  |4 aut 
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