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Article

PIL5, a phytochrome-interacting basic helix-loop-helix protein, is a key negative regulator of seed germination in Arabidopsis thaliana.

The Plant cell - 1 Nov 2004

Oh Eunkyoo, Kim Jonghyun, Park Eunae, Kim Jeong-Il, Kang Changwon, Choi Giltsu

Abstract excerpt

The first decision made by an angiosperm seed, whether to germinate or not, is based on integration of various environmental signals such as water and light. The phytochromes (Phys) act as red and far-red light (Pfr) photoreceptors to mediate light signaling through yet uncharacterized pathways....

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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Source

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Identifiers

PMID: 15486102
DOI: 10.1105/tpc.104.025163
PMCID: PMC527197

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 1 Sept 2026. Prepared record publication-15486102-2026-09-01.1. Manifest publication-graph-cohort-2026-09-01.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 1 Sept 2026.

Related research

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PIL5, a phytochrome-interacting basic helix-loop-helix protein, is a key negative regulator of seed germination in Arabidopsis thaliana.PMID 15486102Read ↗

Transcriptional programs related to phytochrome A function in Arabidopsis seed germination.Semantic proximity Read ↗

The Dof protein DAG1 mediates PIL5 activity on seed germination by negatively regulating GA biosynthetic gene AtGA3ox1.Semantic proximity Read ↗

Phytochrome interacting factors 4 and 5 redundantly limit seedling de-etiolation in continuous far-red light.Semantic proximity Read ↗

Bottom-up Assembly of the Phytochrome Network.Semantic proximity Read ↗

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DOF AFFECTING GERMINATION 2 is a positive regulator of light-mediated seed germination and is repressed by DOF AFFECTING GERMINATION 1.Semantic proximity Read ↗

Phytochromes promote seedling light responses by inhibiting four negatively-acting phytochrome-interacting factors.Semantic proximity Read ↗

Arabidopsis thaliana TERMINAL FLOWER2 is involved in light-controlled signalling during seedling photomorphogenesis.Semantic proximity Read ↗

A small plant-specific protein family of ABI five binding proteins (AFPs) regulates stress response in germinating Arabidopsis seeds and seedlings.Semantic proximity Read ↗

The basic helix-loop-helix transcription factor PIF5 acts on ethylene biosynthesis and phytochrome signaling by distinct mechanisms.Semantic proximity Read ↗

Arabidopsis DET1 degrades HFR1 but stabilizes PIF1 to precisely regulate seed germination.Semantic proximity Read ↗

PIF1 directly and indirectly regulates chlorophyll biosynthesis to optimize the greening process in Arabidopsis.Semantic proximity Read ↗

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