Ca2+ Mobilization from Internal Stores in Electrical Membrane Excitation in Chara

2003 ◽  
pp. 217-233 ◽  
Author(s):  
Gerhard Thiel ◽  
Michael Wacke ◽  
Ilse Foissner
Keyword(s):  
Membrane Excitation

scholarly journals Phenotypic and Genetic Analysis of “Chameleon,” a Paramecium Mutant With an Enhanced Sensitivity to Magnesium

Genetics ◽  
1997 ◽  
Vol 146 (3) ◽  
pp. 871-880
Author(s):  
Robin R Preston ◽  
Jocelyn A Hammond
Keyword(s):  
Genetic Analysis ◽  
Single Locus ◽  
Behavioral Analysis ◽  
Paramecium Tetraurelia ◽  
Wild Type ◽  
Ion Conductance ◽  
Membrane Excitation ◽  
Enhanced Sensitivity ◽  
Electrophysiological Analysis ◽  
Mutant Strains

Three mutant strains of Paramecium tetraurelia with an enhanced sensitivity to magnesium have been isolated. These new “Chameleon” mutants result from partial- or codominant mutations at a single locus, Cha. Whereas the wild type responded to 5 mm Mg2+ by swimming backward for 10–15 sec, Cha mutants responded with ∼30 sec backward swimming. Electrophysiological analysis suggested that this behavior may be caused by slowing in the rate at which a Mg2+-specific ion conductance deactivates following membrane excitation. This would be consistent with an observed increase in the sensitivity of Cha mutants to nickel poisoning, since Ni2+ is also able to enter the cell via this pathway. More extensive behavioral analysis showed that Cha cells also overresponded to Na+, but there was no evidence for a defect in intracellular Ca2+ homeostasis that might account for a simultaneous enhancement of both the Mg2+ and Na+ conductances. The possibility that the Cha locus may encode a specific regulator of the Mg2+- and Na+-permeabilities is considered.

Regulation of membrane excitation by protein phosphorylation inNitellopsis obtusa

PROTOPLASMA ◽  
1986 ◽  
Vol 134 (1) ◽  
pp. 60-61 ◽  
Author(s):  
T. Shiina ◽  
M. Tazawa
Keyword(s):  
Protein Phosphorylation ◽  
Membrane Excitation

scholarly journals 1P224 The orientation of MscS in liposomal membranes(13C. Biological & Artifical membrane: Excitation & Channels,Poster)

2013 ◽  
Vol 53 (supplement1-2) ◽  
pp. S143
Author(s):  
Takeshi Nomura ◽  
Masahiro Sokabe ◽  
Boris Martinac
Keyword(s):  
Membrane Excitation ◽  
Liposomal Membranes

Self-Organized chemical model and approaches to membrane excitation

1999 ◽  
Vol 220 (1) ◽  
pp. 273-289 ◽  
Author(s):  
Takayuki Tokimoto ◽  
Kotaro Shirane ◽  
Hiroyuki Kushibe
Keyword(s):  
Chemical Model ◽  
Membrane Excitation ◽  
Self Organized

scholarly journals Electrical Properties of Tetrahymena, a Suitable Tool for Studies on Membrane Excitation

1980 ◽  
Vol 56 (8) ◽  
pp. 538-543 ◽  
Author(s):  
Hiroshi ONIMARU ◽  
Kazuo OHKI ◽  
Yoshinori NOZAWA ◽  
Yutaka NAITOH
Keyword(s):  
Electrical Properties ◽  
Membrane Excitation ◽  
Suitable Tool

Ferroelectric diffused electrical bilayer model for membrane excitation II. voltage clamped responses

1993 ◽  
Vol 146 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Takayuki Tokimoto ◽  
Kotaro Shirane
Keyword(s):  
Membrane Excitation

scholarly journals 3P218 Coordination between the cytoplasmic domain and the inactivation gate in the KcsA channel(13C. Biological & Artifical membrane: Excitation & Channels,Poster)

2013 ◽  
Vol 53 (supplement1-2) ◽  
pp. S248
Author(s):  
Minako Hirano ◽  
Yukiko Onishi ◽  
Daichi Okuno ◽  
Toru Ide
Keyword(s):  
Cytoplasmic Domain ◽  
Membrane Excitation

Electrical Circuit Simulation of Membrane Excitation

1986 ◽  
Vol 55 (10) ◽  
pp. 3308-3311
Author(s):  
Guang-rong Qin ◽  
Tatsuyuki Kawakubo
Keyword(s):  
Circuit Simulation ◽  
Electrical Circuit ◽  
Membrane Excitation
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