Abstract
The rapidly increasing amount of entirely sequenced genomes generates a need for fast and efficient methods to elucidate gene functions. Functional complementation of yeast mutants, displaying selectable phenotypes, has been used very successfully in the past years to isolate many plant genes involved in signalling, stress response or metabolic pathways. Using the well-characterized Hogl pathway, a mitogen activated protein (MAP) kinase pathway required for adaptation to osmotic stress in budding yeast, as example, we describe here the isolation of plant protein kinases involved in abiotic stress adaptation in the model plant Arabidopsis thaliana. The osmo-sensitive phenotype of yeast mutants carrying a mutation in the Hogl pathway allows an easy selection on high osmolarity media, containing i.e. 0.4 M NaCl. By using yeast mutants harbouring deletions in different components of the pathway, for example the MAP kinase kinase Pbs2 and the MAP kinase Hogl, it is furthermore possible to isolate consecutively acting components of a signalling pathway.
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© 2009 Humana Press, a part of Springer Science+Business Media, LLC
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Mehlmer, N., Scheikl-Pourkhalil, E., Teige, M. (2009). Functional Complementation of Yeast Mutants to Study Plant Signalling Pathways. In: Pfannschmidt, T. (eds) Plant Signal Transduction. Methods in Molecular Biology, vol 479. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-59745-289-2_15
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DOI: https://doi.org/10.1007/978-1-59745-289-2_15
Publisher Name: Humana Press, Totowa, NJ
Print ISBN: 978-1-58829-943-7
Online ISBN: 978-1-59745-289-2
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