Arabidopsis CBF3 and DELLAs positively regulate each other in response to low temperature

Mingqi Zhou, Hu Chen, Donghui Wei, Hong Ma, Juan Lin

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The C-repeat binding factor (CBF) is crucial for regulation of cold response in higher plants. In Arabidopsis, the mechanism of CBF3-caused growth retardation is still unclear. Our present work shows that CBF3 shares the similar repression of bioactive gibberellin (GA) as well as upregulation of DELLA proteins with CBF1 and -2. Genetic analysis reveals that DELLAs play an essential role in growth reduction mediated by CBF1, -2, -3 genes. The in vivo and in vitro evidences demonstrate that GA2-oxidase 7 gene is a novel CBF3 regulon. Meanwhile, DELLAs contribute to cold induction of CBF1, -2, -3 genes through interaction with jasmonate (JA) signaling. We conclude that CBF3 promotes DELLAs accumulation through repressing GA biosynthesis and DELLAs positively regulate CBF3 involving JA signaling. CBFs and DELLAs collaborate to retard plant growth in response to low temperature.

Original languageEnglish (US)
Article number39819
JournalScientific reports
Volume7
DOIs
StatePublished - Jan 4 2017

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Arabidopsis
Temperature
Growth
Genes
Gibberellins
Regulon
Oxidoreductases
Up-Regulation
Proteins
jasmonic acid

All Science Journal Classification (ASJC) codes

  • General

Cite this

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title = "Arabidopsis CBF3 and DELLAs positively regulate each other in response to low temperature",
abstract = "The C-repeat binding factor (CBF) is crucial for regulation of cold response in higher plants. In Arabidopsis, the mechanism of CBF3-caused growth retardation is still unclear. Our present work shows that CBF3 shares the similar repression of bioactive gibberellin (GA) as well as upregulation of DELLA proteins with CBF1 and -2. Genetic analysis reveals that DELLAs play an essential role in growth reduction mediated by CBF1, -2, -3 genes. The in vivo and in vitro evidences demonstrate that GA2-oxidase 7 gene is a novel CBF3 regulon. Meanwhile, DELLAs contribute to cold induction of CBF1, -2, -3 genes through interaction with jasmonate (JA) signaling. We conclude that CBF3 promotes DELLAs accumulation through repressing GA biosynthesis and DELLAs positively regulate CBF3 involving JA signaling. CBFs and DELLAs collaborate to retard plant growth in response to low temperature.",
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Arabidopsis CBF3 and DELLAs positively regulate each other in response to low temperature. / Zhou, Mingqi; Chen, Hu; Wei, Donghui; Ma, Hong; Lin, Juan.

In: Scientific reports, Vol. 7, 39819, 04.01.2017.

Research output: Contribution to journalArticle

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AU - Chen, Hu

AU - Wei, Donghui

AU - Ma, Hong

AU - Lin, Juan

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