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  Natural genetic variation of freezing tolerance in arabidopsis

Hannah, M. A., Wiese, D., Freund, S., Fiehn, O., Heyer, A. G., & Hincha, D. K. (2006). Natural genetic variation of freezing tolerance in arabidopsis. Plant Physiology, 142(1), 98-112. doi:10.1104/pp.106.081141.

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Hannah-2006-Natural genetic vari.pdf (beliebiger Volltext), 381KB
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Hannah, M. A.1, Autor           
Wiese, D.2, Autor
Freund, S.3, Autor           
Fiehn, O.4, Autor           
Heyer, A. G.5, Autor           
Hincha, D. K.3, Autor           
Affiliations:
1Small Molecules, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753340              
2External Organizations, ou_persistent22              
3Transcript Profiling, Infrastructure Groups and Service Units, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753306              
4Metabolomic Analysis, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753345              
5Plant-Environment Interactions, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753348              

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Schlagwörter: myb transcription factor cold response pathway false discovery rate signal-transduction low-temperatures thaliana acclimation expression stress identification
 Zusammenfassung: Low temperature is a primary determinant of plant growth and survival. Using accessions of Arabidopsis (Arabidopsis thaliana) originating from Scandinavia to the Cape Verde Islands, we show that freezing tolerance of natural accessions correlates with habitat winter temperatures, identifying low temperature as an important selective pressure for Arabidopsis. Combined metabolite and transcript profiling show that during cold exposure, global changes of transcripts, but not of metabolites, correlate with the ability of Arabidopsis to cold acclimate. There are, however, metabolites and transcripts, including several transcription factors, that correlate with freezing tolerance, indicating regulatory pathways that may be of primary importance for this trait. These data identify that enhanced freezing tolerance is associated with the down-regulation of photosynthesis and hormonal responses and the induction of flavonoid metabolism, provide evidence for naturally increased nonacclimated freezing tolerance due to the constitutive activation of the C-repeat binding factors pathway, and identify candidate transcriptional regulators that correlate with freezing tolerance.

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Sprache(n): eng - English
 Datum: 2006-07-182006
 Publikationsstatus: Erschienen
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 Identifikatoren: ISI: ISI:000240331400012
DOI: 10.1104/pp.106.081141
ISSN: 0032-0889 (Print) 0032-0889 (Linking)
URI: ://000240331400012 http://www.plantphysiol.org/content/142/1/98.full.pdf
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Titel: Plant Physiology
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 142 (1) Artikelnummer: - Start- / Endseite: 98 - 112 Identifikator: -