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Article

SPA1, a component of phytochrome A signal transduction, regulates the light signaling current.

Planta - 1 Sept 2002

Baumgardt Rosalinde-Louise, Oliverio Karina A, Casal Jorge J, Hoecker Ute

Abstract excerpt

Mutations in a component of phytochrome A (phyA)-specific light signal transduction, SPA1, result in enhanced responsiveness of Arabidopsis seedlings to red and far-red light. Here, we have examined the effects of spa1 mutations on the two known modes of phyA function, the high-irradiance responses (HIRs) to continuous irradiation with far-red light and the very-low-fluence responses (VLFRs) to inductive pulses...

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Source

Identifiers

PMID: 12244439
DOI: 10.1007/s00425-002-0801-x

Provenance

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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SPA1, a component of phytochrome A signal transduction, regulates the light signaling current.PMID 12244439Read ↗

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