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Article

BBX28/BBX29, HY5 and BBX30/31 form a feedback loop to fine-tune photomorphogenic development.

The Plant journal : for cell and molecular biology - 1 Oct 2020

Song Zhaoqing, Yan Tingting, Liu Jiujie, Bian Yeting, Heng Yueqin, Lin Fang, Jiang Yan, Wang Deng Xing, Xu Dongqing

Abstract excerpt

Light is one of the key environmental cues controlling photomorphogenic development in plants. A group of B-box (BBX) proteins play critical roles in this developmental process through diverse regulatory mechanisms. In this study we report that BBX29 acts as a negative regulator of light signaling. BBX29 interacts with CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1) and undergoes COP1-mediated degradation in the dark....

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Identifiers

PMID: 32654323
DOI: 10.1111/tpj.14929

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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BBX28/BBX29, HY5 and BBX30/31 form a feedback loop to fine-tune photomorphogenic development.PMID 32654323Read ↗

B-Box transcription factor BBX28 requires CONSTITUTIVE PHOTOMORPHOGENESIS1 to induce shade-avoidance response in Arabidopsis thaliana.Semantic proximity Read ↗

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CONSTITUTIVELY PHOTOMORPHOGENIC1 is required for the UV-B response in Arabidopsis.Semantic proximity Read ↗

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Short Hypocotyl in White Light1 Interacts with Elongated Hypocotyl5 (HY5) and Constitutive Photomorphogenic1 (COP1) and Promotes COP1-Mediated Degradation of HY5 during Arabidopsis Seedling Development.Semantic proximity Read ↗

A transcriptional cascade involving BBX22 and HY5 finely regulates both plant height and fruit pigmentation in citrus.Semantic proximity Read ↗

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