The molecular basis of COP1 action during photomorphogenesis.

Zhou, Hua; Deng, Xing Wang

Zhou, Hua; Deng, Xing Wang.

Afiliación

Zhou H; Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, Department of Biology, Institute of Plant and Food Sciences, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China.
Deng XW; Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, Department of Biology, Institute of Plant and Food Sciences, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China.

J Exp Bot ; 2024 Apr 29.

Article en En | MEDLINE | ID: mdl-38683181

ABSTRACT

ABSTRACT

COP1 (CONSTITUTIVE PHOTOMORPHOGENIC1), a repressor of seedling photomorphogenesis, is tightly controlled by light. In Arabidopsis, COP1 primarily acts as a part of large E3 ligase complexes and targets key light-signaling factors for ubiquitination and degradation. Upon light perception, the action of COP1 is precisely modulated by active photoreceptors. During seedling development, light plays a predominant role in modulating seedling morphogenesis, including inhibition of hypocotyl elongation, cotyledon opening and expansion, and chloroplast development. These visible morphological changes evidently are resulted from networks of molecular action. In this review, we summarize the current knowledge about the molecular role of COP1 in mediating light-controlled seedling development.

Palabras clave

COP1; E3 ubiquitin ligase; light; molecular basis; photomorphogenesis; ubiquitination

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Exp Bot Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido

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