ArticlePlant physiology2010
A PIP1 aquaporin contributes to hydrostatic pressure-induced water transport in both the root and rosette of Arabidopsis.
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 98 papers.
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Who cites it
98 citing papers in PubMed, 245 citations in OpenAlex.
- The SnRK1-RAP2.4h-PIP2 module contributes to the trade-off between growth and hypoxia tolerance in plants.Nature communications · 2026Article
- Knockout of a single aquaporin, OsPIP2;4, decreases root water permeability in rice.Journal of plant research · 2026Article
- Water flux patterns and aquaporin dynamics: linking stomatal demand to root hydraulics in pearl millet hybrids.Frontiers in plant science · 2026Article
- Emerging Mechanisms of Plant Responses to Abiotic Stress.Plants (Basel, Switzerland) · 2025Review
- Genome-wide association mapping reveals genetic loci underlying phenotypic variation in early root vigour improvement induced by osmopriming in Brassica napus L.BMC plant biology · 2025Article
- The Arabidopsis PIP1;1 Aquaporin Represses Lateral Root Development and Nitrate Uptake Under Low Nitrate Availability.Plant, cell & environment · 2025Article
- New insights into the salt-responsive regulation in eelgrass at transcriptional and post-transcriptional levels.Frontiers in plant science · 2025Article
- Review
- Advancing Sustainable Malting Practices: Aquaporins as Potential Breeding Targets for Improved Water Uptake during Controlled Germination of Barley (Journal of agricultural and food chemistry · 2024Article
- Root-based inorganic carbon uptake increases the growth ofFrontiers in plant science · 2024Article
- Abiotic Stress in Rice: Visiting the Physiological Response and Its Tolerance Mechanisms.Plants (Basel, Switzerland) · 2023Review
- Burning questions for a warming and changing world: 15 unknowns in plant abiotic stress.The Plant cell · 2023Article
- Transgenerational impact of climatic changes on cotton production.Frontiers in plant science · 2023Article
- Exploring aquaporin functions during changes in leaf water potential.Frontiers in plant science · 2023Review
- Plasma membrane aquaporins of the PIP1 and PIP2 subfamilies facilitate hydrogen peroxide diffusion into plant roots.BMC plant biology · 2022Article
- Phenotyping and modeling of root hydraulic architecture reveal critical determinants of axial water transport.Plant physiology · 2022Article
- Roots' Drought Adaptive Traits in Crop Improvement.Plants (Basel, Switzerland) · 2022Review
- Combined use of specific length amplified fragment sequencing (SLAF-seq) and bulked segregant analysis (BSA) for rapid identification of genes influencing fiber content of hemp (Cannabis sativa L.).BMC plant biology · 2022Article
- Experimental and conceptual approaches to root water transport.Plant and soil · 2022Review
- Optimizing Crop Water Use for Drought and Climate Change Adaptation Requires a Multi-Scale Approach.Frontiers in plant science · 2022Review
38 more citing papers are in PubMed but not listed here.
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Authors and funding
7 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Aquaporins are channel proteins that facilitate the transport of water across plant cell membranes. In this work, we used a combination of pharmacological and reverse genetic approaches to investigate the overall significance of aquaporins for tissue water conductivity in Arabidopsis (Arabidopsis thaliana). We addressed the function in roots and leaves of AtPIP1;2, one of the most abundantly expressed isoforms of the plasma membrane intrinsic protein family. At variance with the water transport phenotype previously described in AtPIP2;2 knockout mutants, disruption of AtPIP1;2 reduced by 20% to 30% the root hydrostatic hydraulic conductivity but did not modify osmotic root water transport. These results document qualitatively distinct functions of different PIP isoforms in root water uptake. The hydraulic conductivity of excised rosettes (K(ros)) was measured by a novel pressure chamber technique. Exposure of Arabidopsis plants to darkness increased K(ros) by up to 90%. Mercury and azide, two aquaporin inhibitors with distinct modes of action, were able to induce similar inhibition of K(ros) by approximately 13% and approximately 25% in rosettes from plants grown in the light or under prolonged (11-18 h) darkness, respectively. Prolonged darkness enhanced the transcript abundance of several PIP genes, including AtPIP1;2. Mutant analysis showed that, under prolonged darkness conditions, AtPIP1;2 can contribute to up to approximately 20% of K(ros) and to the osmotic water permeability of isolated mesophyll protoplasts. Therefore, AtPIP1;2 can account for a significant portion of aquaporin-mediated leaf water transport. The overall work shows that AtPIP1;2 represents a key component of whole-plant hydraulics.
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