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  • Influence
Plasma membrane anion channels in higher plants and their putative functions in roots.
  • S. Roberts
  • Chemistry, Medicine
  • The New phytologist
  • 1 February 2006
Recent years have seen considerable progress in identifying anion channel activities in higher plant cells. This review outlines the functional properties of plasma membrane anion channels in plantExpand
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Inward and outward K+‐selective currents in the plasma membrane of protoplasts from maize root cortex and stele
In an attempt to understand the processes mediating ion transport within the root, the patch clamp technique was applied to protoplasts isolated from the cortex and stele of maize roots and theirExpand
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A patch clamp study of Na+ transport in maize roots.
The mechanisms mediating Na(+) transpdrt in higher plant roots were investigated by applying the patch clamp technique to protoplasts isolated from the cortex and stele of maize roots. In the cortex,Expand
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Cytoplasmic calcium and Fucus egg activation
Eggs of the marine brown alga, Fucus serratus, exhibit small transient elevations of cytosolic Ca2+ of variable magnitude, corresponding to the onset of the fertilization potential. Microinjection ofExpand
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Divalent cation block of inward currents and low-affinity K+ uptake in Saccharomyces cerevisiae.
We have used the patch clamp technique to characterize whole-cell currents in spheroplasts isolated from a trk1Delta trk2Delta strain of Saccharomyces cerevisiae which lacks high- andExpand
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The Saccharomyces cerevisiae Ca2+ channel Cch1pMid1p is essential for tolerance to cold stress and iron toxicity
Cch1p and Mid1p are components of a high‐affinity Ca2+‐permeable channel in the yeast plasma membrane. Here, we show that growth of mutants in the Cch1pMid1p channel is markedly hypersensitive to lowExpand
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Regulation of K+ Channels in Maize Roots by Water Stress and Abscisic Acid
Root cortical and stelar protoplasts were isolated from maize ( Zea mays L.) plants that were either well watered or water stressed, and the patch-clamp technique was used to investigate their plasmaExpand
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TOK Homologue in Neurospora crassa: First Cloning and Functional Characterization of an Ion Channel in a Filamentous Fungus
  • S. Roberts
  • Biology, Medicine
  • Eukaryotic Cell
  • 1 February 2003
ABSTRACT In contrast to animal and plant cells, very little is known of ion channel function in fungal physiology. The life cycle of most fungi depends on the “filamentous” polarized growth of hyphalExpand
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Characterization of Anion Channels in the Plasma Membrane of Arabidopsis Epidermal Root Cells and the Identification of a Citrate-Permeable Channel Induced by Phosphate Starvation1
Organic-acid secretion from higher plant roots into the rhizosphere plays an important role in nutrient acquisition and metal detoxification. In this study we report the electrophysiologicalExpand
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Permeation of Ca2+ and monovalent cations through an outwardly rectifying channel in maize root stelar cells
A depolarization-activated outwardly-rectifying channel (OR), most likely involved in the passive release of K+ from the root symplasm into the stelar apoplast (for subsequent transport to the shootExpand
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