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Article

The Arabidopsis ABSCISIC ACID-INSENSITIVE2 (ABI2) and ABI1 genes encode homologous protein phosphatases 2C involved in abscisic acid signal transduction.

The Plant cell - 1 May 1997

Leung J, Merlot S, Giraudat J

Abstract excerpt

Abscisic acid (ABA) mediates seed maturation and adaptive responses to environmental stress. In Arabidopsis, the ABA-INSENSITIVE1 (ABI1) protein phosphatase 2C is required for proper ABA responsiveness both in seeds and in vegetative tissues. To determine whether the lack of recessive alleles at the corresponding locus could be explained by the existence of redundant genes, we initiated a search for ABI1...

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Source

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Identifiers

PMID: 9165752
DOI: 10.1105/tpc.9.5.759
PMCID: PMC156954

Genes

ABI1
ABI2

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

Related research

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Research trail→

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The Arabidopsis ABSCISIC ACID-INSENSITIVE2 (ABI2) and ABI1 genes encode homologous protein phosphatases 2C involved in abscisic acid signal transduction.PMID 9165752Read ↗

ABI1 protein phosphatase 2C is a negative regulator of abscisic acid signaling.Semantic proximity Read ↗

The ABI1 and ABI2 protein phosphatases 2C act in a negative feedback regulatory loop of the abscisic acid signalling pathway.Semantic proximity Read ↗

A protein phosphatase 2C involved in ABA signal transduction in Arabidopsis thaliana.Semantic proximity Read ↗

Enhancement of abscisic acid sensitivity and reduction of water consumption in Arabidopsis by combined inactivation of the protein phosphatases type 2C ABI1 and HAB1.Semantic proximity Read ↗

Gain-of-function and loss-of-function phenotypes of the protein phosphatase 2C HAB1 reveal its role as a negative regulator of abscisic acid signalling.Semantic proximity Read ↗

ABA-hypersensitive germination3 encodes a protein phosphatase 2C (AtPP2CA) that strongly regulates abscisic acid signaling during germination among Arabidopsis protein phosphatase 2Cs.Semantic proximity Read ↗

ABA-Hypersensitive Germination1 encodes a protein phosphatase 2C, an essential component of abscisic acid signaling in Arabidopsis seed.Semantic proximity Read ↗

A protein phosphatase 2A catalytic subunit is a negative regulator of abscisic acid signalling.Semantic proximity Read ↗

The role of ABI1 in abscisic acid signal transduction: from gene to cell.Semantic proximity Read ↗

Functional analyses of the ABI1-related protein phosphatase type 2C reveal evolutionarily conserved regulation of abscisic acid signaling between Arabidopsis and the moss Physcomitrella patens.Semantic proximity Read ↗

Ectopic expression of mutated type 2C protein phosphatase OsABI-LIKE2 decreases abscisic acid sensitivity in Arabidopsis and rice.Semantic proximity Read ↗

Two E-clade protein phosphatase 2Cs enhance ABA signaling by dephosphorylating ABI1 in Arabidopsis.Semantic proximity Read ↗

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