ArticlePlant molecular biology2003
Members of the aquaporin family in the developing pea seed coat include representatives of the PIP, TIP, and NIP subfamilies.
Article in Plant molecular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed, 91 citations in OpenAlex.
- Genome-wide characterization and drought-responsive expression profiling of plasma membrane intrinsic proteins (PIPs) in Caragana korshinskii.BMC plant biology · 2026Article
- Article
- Advances in the Structure, Function, and Regulatory Mechanism of Plant Plasma Membrane Intrinsic Proteins.Genes · 2024Review
- Promoter of Vegetable PeaInternational journal of molecular sciences · 2024Article
- 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
- Red LED Light Improves Pepper (International journal of molecular sciences · 2023Article
- Hypoxia-Induced Aquaporins and Regulation of Redox Homeostasis by a Trans-Plasma Membrane Electron Transport System in Maize Roots.Antioxidants (Basel, Switzerland) · 2022Article
- Identification and Characterization of Salt- and Drought-ResponsiveInternational journal of molecular sciences · 2022Article
- Proteomic Analysis of Embryo Isolated From MatureFrontiers in plant science · 2022Article
- Article
- Versatile Roles of Aquaporins in Plant Growth and Development.International journal of molecular sciences · 2020Review
- An embryo lethal transgenic line manifests global expression changes and elevated protein/oil ratios in heterozygous soybean plants.PloS one · 2020Article
- New Insight on Water Status in GerminatingInternational journal of molecular sciences · 2019Article
- Regulation of aquaporins in plants under stress.Biological research · 2018Review
- Roles of Soybean Plasma Membrane Intrinsic Protein GmPIP2;9 in Drought Tolerance and Seed Development.Frontiers in plant science · 2018Article
- Virus-induced plasma membrane aquaporin PsPIP2;1 silencing inhibits plant water transport of Pisum sativum.Botanical studies · 2016Article
- Roles of Aquaporins inFrontiers in plant science · 2016Article
- Prediction of aquaporin function by integrating evolutionary and functional analyses.The Journal of membrane biology · 2014Review
- Article
- Development of endosperm transfer cells in barley.Frontiers in plant science · 2014Review
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Water and nutrients required by developing seeds are mainly supplied by the phloem and have to be released from a maternal parenchyma tissue before being utilized by the filial tissues of embryo and endosperm. To identify aquaporins that could be involved in this process four full-length cDNAs were cloned and sequenced from a cDNA library of developing seed coats of pea (Pisum sativum L.). The cDNA of PsPIP1-1 appeared to be identical to that of clone 7a/TRG-31, a turgor-responsive gene cloned previously from pea roots. PsPIP1-1, PsPIP2-1, and PsTIP1-1, or their possible close homologues, were also expressed in cotyledons of developing and germinating seeds, and in roots and shoots of seedlings, but transcripts of PsNIP-1 were only detected in the seed coat. In mature dry seeds, high hybridization signals were observed with the probe for PsPIP1-1, but transcripts of PsPIP2-1, PsTIP1-1, and PsNIP-1 were not detected. Functional characterization after heterologous expression in Xenopus oocytes showed that PsPIP2-1 and PsTIP1-1 are aquaporins whereas PsNIP-1 is an aquaglyceroporin. PsNIP-1, like several other NIPs, contains a tryptophan residue corresponding with Trp-48 in GlpF (the glycerol facilitator of Escherichia coli) that borders the selectivity filter in the permeation channel. It is suggested that PsPIP1-1 and/or its possible close homologues could play a role in water absorption during seed imbibition, and that PsPIP2-1, possibly together with PsPIP1-1, could be involved in the release of phloem water from the seed coat symplast, which is intimately connected with the release of nutrients for the embryo.
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