Molecular mechanisms of water uptake and transport in plant roots: research progress with water channel aquaporins
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概要
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Aquaporins (water channels) are membrane proteins which facilitate the transport of water and low molecular weight compounds across biological membranes. The author and collaborators identified barley aquaporins and investigated the level of transcripts in roots, water transport activity, tissue localization, expression reduction by salt stress, and diurnal changes in the expression of a particular aquaporin. Over-expression of a barley aquaporin, HvPIP2;1, increased the shoot/root ratio and raised salt sensitivity in transgenic rice plants. Aquaporin research is providing significant insights into the water relations of plant roots.
著者
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Katsuhara Maki
Research Institute For Bioresources Okayama University
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Katsuhara Maki
Research Institute for Bioresources, Okayama University.
関連論文
- Low temperature and aquaporins, a molecular mechanism of water transport (セミナー 生体の温度・水分センサーの機能と構造)
- Overexpression of the Barley Aquaporin HvPIP2 ; 1 Increases Internal CO_2 Conductance and CO_2 Assimilation in the Leaves of Transgenic Rice Plants
- Over-expression of a Barley Aquaporin Increased the Shoot/Root Ratio and Raised Salt Sensitivity in Transgenic Rice Plants
- Expression of an Aquaporin at Night in Relation to the Growth and Root Water Permeability in Barley Seedlings (Plant Nutrition)
- Functional Analysis of Water Channels in Barley Roots
- An Aluminum-Activated Citrate Transporter in Barley
- Intracellular pH and Proton-Transport in Barley Root Cells under Salt Stress: in Vivo ^P-NMR Study
- Characterization of Four Plasma Membrane Aquaporins in Tulip Petals : A Putative Homolog is Regulated by Phosphorylation
- Drought Stress Alters Water Relations and Expression of PIP-Type Aquaporin Genes in Nicotiana tabacum Plants
- Genetic Engineering of the Processing Site of D1 Precursor Protein of Photosystem II Reaction Center in Chlamydomenas reinhardtii
- Isolation of Barley salT Gene : Its Relation to Salt Tolerance and to Hormonal Regulation by Abscisic Acid and Jasmonic Acid
- Cell Death and Growth Recovery of Barley after Transient Salt Stress
- Insights into the salt tolerance mechanism in barley (Hordeum vulgare) from comparisons of cultivars that differ in salt sensitivity
- Barley root hydraulic conductivity and aquaporins expression in relation to salt tolerance(Plant Nutrition)
- Hydraulic Conductivity and Aquaporins of Cortical Cells in Gravitropically Bending Roots of Pisum sativum L.(Crop Physiology and Ecology)
- Apoptosis-Like Cell Death in Barley Roots under Salt Stress
- Salt Stress Induced Nuclear and DNA Degradation in Meristematic Cells ofBarley Roots
- Molecular mechanisms of water uptake and transport in plant roots: research progress with water channel aquaporins