Accelerated ion fluxes during differentiation in zoospores of Phytophthora palmivora.
Identifieur interne : 002D55 ( Main/Exploration ); précédent : 002D54; suivant : 002D56Accelerated ion fluxes during differentiation in zoospores of Phytophthora palmivora.
Auteurs : J R Iser [Australie] ; J M Griffith ; A. Balson ; B R GrantSource :
- Cell differentiation and development : the official journal of the International Society of Developmental Biologists [ 0922-3371 ] ; 1989.
Descripteurs français
- KwdFr :
- A-23187 (pharmacologie), Amiloride (pharmacologie), Animaux (MeSH), Calcium (pharmacocinétique), Chytridiomycota (physiologie), Différenciation cellulaire (effets des médicaments et des substances chimiques), Monensin (pharmacologie), Morphogenèse (effets des médicaments et des substances chimiques), Perméabilité des membranes cellulaires (effets des médicaments et des substances chimiques), Phytophthora (physiologie), Sodium (pharmacocinétique), Vérapamil (pharmacologie), Échange ionique (MeSH), Éthanol (pharmacologie).
- MESH :
- effets des médicaments et des substances chimiques : Différenciation cellulaire, Morphogenèse, Perméabilité des membranes cellulaires.
- pharmacocinétique : Calcium, Sodium.
- pharmacologie : A-23187, Amiloride, Monensin, Vérapamil, Éthanol.
- physiologie : Chytridiomycota, Phytophthora.
- Animaux, Échange ionique.
English descriptors
- KwdEn :
- Amiloride (pharmacology), Animals (MeSH), Calcimycin (pharmacology), Calcium (pharmacokinetics), Cell Differentiation (drug effects), Cell Membrane Permeability (drug effects), Chytridiomycota (physiology), Ethanol (pharmacology), Ion Exchange (MeSH), Monensin (pharmacology), Morphogenesis (drug effects), Phytophthora (physiology), Sodium (pharmacokinetics), Verapamil (pharmacology).
- MESH :
- chemical , pharmacokinetics : Calcium, Sodium.
- chemical , pharmacology : Amiloride, Calcimycin, Ethanol, Monensin, Verapamil.
- drug effects : Cell Differentiation, Cell Membrane Permeability, Morphogenesis.
- physiology : Chytridiomycota, Phytophthora.
- Animals, Ion Exchange.
Abstract
Zoospores of Phytophthora palmivora show increased fluxes of Na+ and Ca2+ 3-5 min after they have been stimulated to differentiate with pectin. Both spontaneous and pectin-induced encystment are reduced below pH 6 and accelerated above pH 7. The ionophores monensin and A23187 induce slow differentiation when added together, but not when added separately. Ethanol (0.5%) also induces slow differentiation. Amiloride and verapamil inhibit pectin-induced differentiation and also reduce the onset of the Na+ and Ca2+ flux. A requirement for Ca2+ for differentiation is confirmed, but a requirement for Na+ could not be demonstrated.
DOI: 10.1016/0922-3371(89)90781-8
PubMed: 2496900
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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Both spontaneous and pectin-induced encystment are reduced below pH 6 and accelerated above pH 7. The ionophores monensin and A23187 induce slow differentiation when added together, but not when added separately. Ethanol (0.5%) also induces slow differentiation. Amiloride and verapamil inhibit pectin-induced differentiation and also reduce the onset of the Na+ and Ca2+ flux. 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Both spontaneous and pectin-induced encystment are reduced below pH 6 and accelerated above pH 7. The ionophores monensin and A23187 induce slow differentiation when added together, but not when added separately. Ethanol (0.5%) also induces slow differentiation. Amiloride and verapamil inhibit pectin-induced differentiation and also reduce the onset of the Na+ and Ca2+ flux. 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Balson</name><name sortKey="Grant, B R" sort="Grant, B R" uniqKey="Grant B" first="B R" last="Grant">B R Grant</name><name sortKey="Griffith, J M" sort="Griffith, J M" uniqKey="Griffith J" first="J M" last="Griffith">J M Griffith</name></noCountry><country name="Australie"><region name="Victoria (État)"><name sortKey="Iser, J R" sort="Iser, J R" uniqKey="Iser J" first="J R" last="Iser">J R Iser</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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