Characterization of the Key Region and Phosphorylation Sites of EcaICE1 for its Molecular Interaction with EcaHOS1 Protein from Eucalyptus camaldulensis

Abstract

1 6 ICE1 (inducer of CBF expression 1), a MYC-like bHLH transcriptional activator, plays an important role in plant under 1 7 cold stress via regulating transcriptional expression of downstream cold-responsive genes. Ubiquitination-proteasome 1 8 pathway mediated by high expression of osmotically responsive gene1 (HOS1) can effectively induce the degradation 1 9 of ICE1 and decrease the expression of expression of CBFs and their downstream genes under cold stress response in 2 0 Arabidopsis, but the knowledge about ubiquitination regulation of ICE1 by HOS1 is still limited in woody plants. In 3 1 3 2