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Article

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

Plant physiology - 1 Aug 2006

Saez Angela, Robert Nadia, Maktabi Mohammad H, Schroeder Julian I, Serrano Ramón, Rodriguez Pedro L

Abstract excerpt

Abscisic acid (ABA) plays a key role in plant responses to abiotic stress, particularly drought stress. A wide number of ABA-hypersensitive mutants is known, however, only a few of them resist/avoid drought stress. In this work we have generated ABA-hypersensitive drought-avoidant mutants by simultaneous inactivation of two negative regulators of ABA signaling, i.e. the protein phosphatases type 2C (PP2Cs)...

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Abscisic Acid
Arabidopsis
Arabidopsis Proteins
Phosphoprotein Phosphatases
Plant Leaves

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Plant Transpiration

Signal Transduction

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Identifiers

PMID: 16798945
DOI: 10.1104/pp.106.081018
PMCID: PMC1533955

Genes

ABI1

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 1 Sept 2026.

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Enhancement of abscisic acid sensitivity and reduction of water consumption in Arabidopsis by combined inactivation of the protein phosphatases type 2C ABI1 and HAB1.PMID 16798945Read ↗

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 ↗

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

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

Role of abscisic acid (ABA) and Arabidopsis thaliana ABA-insensitive loci in low water potential-induced ABA and proline accumulation.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 ↗

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

ABA signalling is fine-tuned by antagonistic HAB1 variants.Semantic proximity Read ↗

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

Isolation and characterization of abscisic acid-deficient Arabidopsis mutants at two new loci.Semantic proximity Read ↗

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

Arabidopsis type B cytokinin response regulators ARR1, ARR10, and ARR12 negatively regulate plant responses to drought.Semantic proximity Read ↗

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