HOS15-PWR chromatin remodeling complex positively regulates cold stress in Arabidopsis.
Plant Signal Behav
; 16(5): 1893978, 2021 05 04.
Article
em En
| MEDLINE
| ID: mdl-33641608
ABSTRACT
Cold stress is a major environmental constraint that restrains plant growth and productivity. To cope with cold stress, plants must be able to perceive a cold signal and regulate the expression of cold-regulated (COR) genes. In our recent study, we showed that Arabidopsis HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENE 15 (HOS15) acts as a substrate receptor for CULLIN4-based ubiquitin E3 ligase complex to promote cold-induced histone deacetylase 2 C (HD2C) degradation that allows the activation of COR genes. Additionally, we found that POWERDRESS (PWR), a HOS15-interacting protein, is required for the association of HOS15 with COR gene chromatin and HD2C degradation. The HOS15/PWR complex interacts with and recruits CBF transcription factors to the promoters of COR genes. Collectively, our previous findings suggest that HOS15 and PWR function as positive regulators for the expression of COR genes, and promote cold tolerance. Accordingly, we herein discuss the role of PWR in cold tolerance.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fatores de Transcrição
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Proteínas Cromossômicas não Histona
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Arabidopsis
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Proteínas de Arabidopsis
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Montagem e Desmontagem da Cromatina
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Resposta ao Choque Frio
Tipo de estudo:
Prognostic_studies
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article