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A salt stress-responsive cytokinin receptor homologue isolated from Medicago sativa nodules

AuthorsCoba de la Peña, Teodoro ; Cárcamo, Claudia B.; Almonacid, Luis; Zaballos, Ángel; Lucas, M. Mercedes ; Balomenos, Dimitrios ; Pueyo, José Javier
KeywordsCytokinin receptor
Salt stress
Signal transduction
Issue DateNov-2008
CitationPlanta (2008) 227:769-779
AbstractA new cytokinin receptor homologue, MsHK1, was isolated from Medicago sativa root nodules. MsHK1 expression was induced in alfalfa seedlings by exogenous application of the cytokinin trans-zeatin. Transcript accumulation was detected in diVerent plant organs. MsHK1 expression was induced by salt stress in alfalfa roots, leaves and nodules, and transcript accumulation in the vascular bundles pointed to a putative role in osmosensing for MsHK1 and/or other close cytokinin receptor homologues. Expression in the meristem and the invasion zone of the nodule suggest a role for cytokinin receptors in cytokinin sensing during nodule cell division and diferentation
Description11 pages and 8 figures
Publisher version (URL)http://dx.doi.org/10.1007/s00425-007-0655-3
Appears in Collections:(IRN) Artículos
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