ArticlePlant physiology2010
Evolutionarily conserved regulatory mechanisms of abscisic acid signaling in land plants: characterization of ABSCISIC ACID INSENSITIVE1-like type 2C protein phosphatase in the liverwort Marchantia polymorpha.
Article in Plant physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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37 citing papers in PubMed, 105 citations in OpenAlex.
- The TaERF3-Plants (Basel, Switzerland) · 2026Article
- Desiccation Tolerance in Moss and Liverwort: Insights into the Evolutionary Mechanisms of Terrestrialization.International journal of molecular sciences · 2026Review
- Gaining or cutting SLAC: the evolution of plant guard cell signalling pathways.The New phytologist · 2024Article
- Osmotic signaling releases PP2C-mediated inhibition of Arabidopsis SnRK2s via the receptor-like cytoplasmic kinase BIK1.The EMBO journal · 2024Article
- Environmental Pollutant Anthracene Induces ABA-Dependent Transgenerational Effects on Gemmae Dormancy inPlants (Basel, Switzerland) · 2024Article
- The renaissance and enlightenment of Marchantia as a model system.The Plant cell · 2022Article
- Differential regulations of abscisic acid-induced desiccation tolerance and vegetative dormancy by group B3 Raf kinases in liverworts.Frontiers in plant science · 2022Article
- Genome-Wide Identification and Expression Analyses ofPlants (Basel, Switzerland) · 2021Article
- Activation of SnRK2 by Raf-like kinase ARK represents a primary mechanism of ABA and abiotic stress responses.Plant physiology · 2021Article
- Evolution of Abscisic Acid Signaling Module and Its Perception.Frontiers in plant science · 2020Review
- Evolution of Abscisic Acid Signaling for Stress Responses to Toxic Metals and Metalloids.Frontiers in plant science · 2020Review
- Transcriptome Analysis Reveals Cotton (International journal of molecular sciences · 2019Article
- Archetypal Roles of an Abscisic Acid Receptor in Drought and Sugar Responses in Liverworts.Plant physiology · 2019Article
- Glucohexaose-induced protein phosphatase 2C regulates cell redox status of cucumber seedling.Journal of biosciences · 2018Article
- Surviving a Dry Future: Abscisic Acid (ABA)-Mediated Plant Mechanisms for Conserving Water under Low Humidity.Plants (Basel, Switzerland) · 2017Review
- Abscisic acid (ABA) and key proteins in its perception and signaling pathways are ancient, but their roles have changed through time.Plant signaling & behavior · 2017Article
- Evolution of the Stomatal Regulation of Plant Water Content.Plant physiology · 2017Review
- Article
- An ancient and conserved function for Armadillo-related proteins in the control of spore and seed germination by abscisic acid.The New phytologist · 2016Article
- An Innate Immunity Pathway in the Moss Physcomitrella patens.The Plant cell · 2016Article
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Abscisic acid (ABA) is postulated to be a ubiquitous hormone that plays a central role in seed development and responses to environmental stresses of vascular plants. However, in liverworts (Marchantiophyta), which represent the oldest extant lineage of land plants, the role of ABA has been least emphasized; thus, very little information is available on the molecular mechanisms underlying ABA responses. In this study, we isolated and characterized MpABI1, an ortholog of ABSCISIC ACID INSENSITIVE1 (ABI1), from the liverwort Marchantia polymorpha. The MpABI1 cDNA encoded a 568-amino acid protein consisting of the carboxy-terminal protein phosphatase 2C (PP2C) domain and a novel amino-terminal regulatory domain. The MpABI1 transcript was detected in the gametophyte, and its expression level was increased by exogenous ABA treatment in the gemma, whose growth was strongly inhibited by ABA. Experiments using green fluorescent protein fusion constructs indicated that MpABI1 was mainly localized in the nucleus and that its nuclear localization was directed by the amino-terminal domain. Transient overexpression of MpABI1 in M. polymorpha and Physcomitrella patens cells resulted in suppression of ABA-induced expression of the wheat Em promoter fused to the beta -glucuronidase gene. Transgenic P. patens expressing MpABI1 and its mutant construct, MpABI1-d2, lacking the amino-terminal domain, had reduced freezing and osmotic stress tolerance, and associated with reduced accumulation of ABA-induced late embryogenesis abundant-like boiling-soluble proteins. Furthermore, ABA-induced morphological changes leading to brood cells were not prominent in these transgenic plants. These results suggest that MpABI1 is a negative regulator of ABA signaling, providing unequivocal molecular evidence of PP2C-mediated ABA response mechanisms functioning in liverworts.
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