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Article

The co-repressor protein HOS15 negatively regulates ethylene signaling via degradation of EIN3 during arabidopsis apical hook formation.

Journal of plant physiology - 1 Jun 2026

Khan Haris Ali, Ahn Gyeongik, Aulia Ade Citra, Sari Septi Anita, Shin Gyeong-Im, Jeong Song Yi, Huh Jin-Sung, Ji Myung Geun, Choi Bongsoo, Kim Youngju, Park Junghoon, Yoon Gyeong Mee, Kim Min Gab, Kim Woe-Yeon, Yun Dae-Jin, Cha Joon-Yung

Abstract excerpt

Ethylene signaling is essential for apical hook formation during early seedling development in darkness, protecting cotyledons and shoot apical meristem as seedlings emerge through soil. ETHYLENE-INSENSITIVE 3 (EIN3), a central transcription factor in this pathway, activates ethylene-responsive genes such as HOOKLESS1 (HLS1) to promote hook formation. EIN3 is rapidly stabilized in response to ethylene but is...

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Source

Identifiers

PMID: 42054788
DOI: 10.1016/j.jplph.2026.154785

Genes

CUL1
DDB1
EBF1
EBF2

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 8 Sept 2026.

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The co-repressor protein HOS15 negatively regulates ethylene signaling via degradation of EIN3 during arabidopsis apical hook formation.PMID 42054788Read ↗

HOS15 impacts DIL9 protein stability during drought stress in Arabidopsis.Semantic proximity Read ↗

HOOKLESS1, an ethylene response gene, is required for differential cell elongation in the Arabidopsis hypocotyl.Semantic proximity Read ↗

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Interaction between MYC2 and ETHYLENE INSENSITIVE3 modulates antagonism between jasmonate and ethylene signaling in Arabidopsis.Semantic proximity Read ↗

Plant responses to ethylene gas are mediated by SCF(EBF1/EBF2)-dependent proteolysis of EIN3 transcription factor.Semantic proximity Read ↗

The Arabidopsis EIN3 binding F-Box proteins EBF1 and EBF2 have distinct but overlapping roles in ethylene signaling.Semantic proximity Read ↗

Ethylene-induced stabilization of ETHYLENE INSENSITIVE3 and EIN3-LIKE1 is mediated by proteasomal degradation of EIN3 binding F-box 1 and 2 that requires EIN2 in Arabidopsis.Semantic proximity Read ↗

EIN2-dependent regulation of acetylation of histone H3K14 and non-canonical histone H3K23 in ethylene signalling.Semantic proximity Read ↗

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ETHYLENE-INSENSITIVE5 encodes a 5'-->3' exoribonuclease required for regulation of the EIN3-targeting F-box proteins EBF1/2.Semantic proximity Read ↗

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AT-HOOK-MOTIF NUCLEAR LOCALIZED 15 extends plant longevity by binding at poorly accessible, epigenetic mark-depleted chromatin surrounding transcribed regionsSemantic proximity Read ↗

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