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Functional metabolo...
Functional metabolomics as a tool to analyze Mediator function and structure in plants
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- Davoine, Celine (author)
- Umeå universitet,Institutionen för medicinsk kemi och biofysik
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- Abreu, Ilka (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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- Khajeh, Khalil (author)
- Umeå universitet,Institutionen för medicinsk kemi och biofysik
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- Blomberg, Jeanette (author)
- Umeå universitet,Institutionen för medicinsk kemi och biofysik
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Kidd, Brendan N. (author)
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Kazan, Kemal (author)
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Schenk, Peer M. (author)
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- Gerber, Lorenz (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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- Nilsson, Ove (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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- Moritz, Thomas (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
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- Björklund, Stefan (author)
- Umeå universitet,Institutionen för medicinsk kemi och biofysik
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(creator_code:org_t)
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- 2017-06-22
- 2017
- English.
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In: PLOS ONE. - : Public Library Science. - 1932-6203. ; 12:6
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Abstract
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- Mediator is a multiprotein transcriptional co-regulator complex composed of four modules; Head, Middle, Tail, and Kinase. It conveys signals from promoter-bound transcriptional regulators to RNA polymerase II and thus plays an essential role in eukaryotic gene regulation. We describe subunit localization and activities of Mediator in Arabidopsis through metabolome and transcriptome analyses from a set of Mediator mutants. Functional metabolomic analysis based on the metabolite profiles of Mediator mutants using multivariate statistical analysis and heat-map visualization shows that different subunit mutants display distinct metabolite profiles, which cluster according to the reported localization of the corresponding subunits in yeast. Based on these results, we suggest localization of previously unassigned plant Mediator subunits to specific modules. We also describe novel roles for individual subunits in development, and demonstrate changes in gene expression patterns and specific metabolite levels in med18 and med25, which can explain their phenotypes. We find that med18 displays levels of phytoalexins normally found in wild type plants only after exposure to pathogens. Our results indicate that different Mediator subunits are involved in specific signaling pathways that control developmental processes and tolerance to pathogen infections.
Subject headings
- NATURVETENSKAP -- Biologi -- Utvecklingsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Developmental Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
- NATURVETENSKAP -- Annan naturvetenskap -- Övrig annan naturvetenskap (hsv//swe)
- NATURAL SCIENCES -- Other Natural Sciences -- Other Natural Sciences not elsewhere specified (hsv//eng)
- NATURVETENSKAP -- Biologi -- Annan biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Other Biological Topics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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PLOS ONE
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To the university's database
- By the author/editor
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Davoine, Celine
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Abreu, Ilka
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Khajeh, Khalil
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Blomberg, Jeanet ...
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Kidd, Brendan N.
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Kazan, Kemal
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show more...
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Schenk, Peer M.
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Gerber, Lorenz
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Nilsson, Ove
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Moritz, Thomas
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Björklund, Stefa ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Developmental Bi ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Genetics
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Other Natural Sc ...
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and Other Natural Sc ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Other Biological ...
- Articles in the publication
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PLOS ONE
- By the university
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Umeå University
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Swedish University of Agricultural Sciences