title: AtMYB14Regulates Cold Tolerance inArabidopsis.
abstract: Low temperature affects plant growth and crop productivity. TheCBFgenes are a class of transcription factors that play important roles in cold response. Here we report that AtMYB14 participates in freezing tolerance inArabidopsisby affecting expression ofCBFgenes. TheAtMYB14gene was down-regulated by cold treatment.AtMYB14encodes a nuclear protein that functions as an R2R3-MYB transcription activator. Knock-down ofAtMYB14by artificial microRNA increased the tolerance to freezing stress. Both theCBFgenes and the downstream genes were induced to a much higher level inAtMYB14knock-down plants than in wild type under cold treatment. Our results suggest that AtMYB14 plays an important role in the plant response to cold stress.
authors.forename: Yan
authors.initials: Y
authors.lastname: Chen
authors.forename: Zhangliang
authors.initials: Z
authors.lastname: Chen
authors.forename: Juqing
authors.initials: J
authors.lastname: Kang
authors.forename: Dingming
authors.initials: D
authors.lastname: Kang
authors.forename: Hongya
authors.initials: H
authors.lastname: Gu
authors.forename: Genji
authors.initials: G
authors.lastname: Qin
keywords: Arabidopsis; AtMYB14; CBF genes; Cold tolerance; R2R3-type MYB transcription factor