ArticleThe Journal of cell biology1986
Electrophysiological properties of Achlya hyphae: ionic currents studied by intracellular potential recording.
Article in The Journal of cell biology, 1986. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 46 citations in OpenAlex.
- Electrical signaling in fungi: past and present challenges.FEMS microbiology reviews · 2025Review
- Exploiting Micrometer-Scale Replication of Fungal Biotemplates for Multifunctional Uses in Electrochemistry and SERS Substrates.ACS omega · 2024Article
- A structural model for facultative anion channels in an oligomeric membrane protein: the yeast TRK (K(+)) system.Pflugers Archiv : European journal of physiology · 2015Article
- Yeast Fex1p Is a Constitutively Expressed Fluoride Channel with Functional Asymmetry of Its Two Homologous Domains.The Journal of biological chemistry · 2015Article
- Pseudomonas aeruginosa manipulates redox and iron homeostasis of its microbiota partner Aspergillus fumigatus via phenazines.Scientific reports · 2015Article
- Extension growth of the water mold Achlya: interplay of turgor and wall strength.Proceedings of the National Academy of Sciences of the United States of America · 1992Article
- To shape a cell: an inquiry into the causes of morphogenesis of microorganisms.Microbiological reviews · 1990Review
- Ionic currents in morphogenesis.Experientia · 1988Review
- Transcellular proton current in Achlya bisexualis hyphae: relationship to polarized growth.Proceedings of the National Academy of Sciences of the United States of America · 1988Article
- Transcellular ion currents and extension of Neurospora crassa hyphae.The Journal of membrane biology · 1988Article
Corrections and comments
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Authors and funding
1 author.
Funding
Abstract
The electrical properties of the water mold Achlya bisexualis were investigated using intracellular microelectrodes. Hyphae growing in a defined medium maintained a membrane potential (Vm) of -150 to -170 mV, interior negative. Under the conditions used here, this potential was insensitive to changes in the inorganic ion composition of the medium. Changes in external pH did affect Vm, but only outside the physiological pH range. By contrast, the addition of respiratory inhibitors caused a rapid depolarization without affecting the conductance of the plasma membrane. Taken together these findings strongly suggest that the membrane potential is governed by an electrogenic ion pump rather than by an ionic diffusion potential. Previous work from this laboratory showed that Achlya hyphae generate a transcellular proton current that enters the growing tip, flows along the hyphal length, and exits distally from the trunk. These initial experiments used an extracellular vibrating electrode, and I now report intracellular electrical recordings which support the hypothesis that protons enter the tip by symport with amino acids and are expelled distally by a proton-translocating ATPase. Most significantly, current flowing intracellularly along the hyphal length is associated with a cytoplasmic electric field of 0.2 V/cm or greater. Conditions that inhibit the current also abolish the internal field, suggesting that these two phenomena are closely linked.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.