Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Thomas Krüppel"'
Publikováno v:
Journal of Experimental Biology. 202:475-483
In the marine ciliate Euplotes raikovi, pheromone released by a complementary mating type (nonself pheromone) induces typical sexual behaviour, whereas self pheromone released by the same mating type generally has no effect. Nonself pheromone evokes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad3447931a0e52edea0c24dcfc09a7d1
https://doi.org/10.1242/jeb.202.4.475
https://doi.org/10.1242/jeb.202.4.475
Publikováno v:
Cell Calcium. 25:153-160
Ciliates possess diverse Ca2+ homeostasis systems, but little is known about the occurrence of a Na(+)-Ca2+ exchanger. We studied Na(+)-Ca2+ exchange in the ciliate Euplotes crassus by digital imaging. Cells were loaded with fura-2/AM or SBF1/AM for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2609c325193e5ee851e11a15dc0ce19
https://doi.org/10.1054/ceca.1998.0014
https://doi.org/10.1054/ceca.1998.0014
Publikováno v:
Polar Biology. 20:127-133
Electric membrane properties and motor behaviour of two Antarctic and two middle-latitude species of Euplotes were compared. Membrane potential fluctuations and whole-cell currents were measured using the whole cell clamp. The electrical properties o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f367e80facdf8dff292cb26c16f4c28
https://doi.org/10.1007/s003000050286
https://doi.org/10.1007/s003000050286
Publikováno v:
The Journal of Eukaryotic Microbiology. 44:427-433
Equally dispersed Euplotes vannus cells accumulate inside a drop of supernatant of a bacteria suspension that is surrounded by a reference solution. In the drop, frequencies of stops and backward jerks are tenfold increased. The sequences of directio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bd299a9a04fdd8670db89657de76e0f
https://doi.org/10.1111/j.1550-7408.1997.tb05719.x
https://doi.org/10.1111/j.1550-7408.1997.tb05719.x
Publikováno v:
European Journal of Protistology. 32:47-54
Summary In the marine hypotrich Euplotes vannus, the coupling of behavioural elements to shifts in the freely fluctuating membrane potential was investigated by use of a computerized locomotion track evaluation system. Potential shifts were attribute
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f5bfc49db3576c8949261b5a91ce2cd
https://doi.org/10.1016/s0932-4739(96)80038-1
https://doi.org/10.1016/s0932-4739(96)80038-1
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Biomembranes. 1062:193-198
In the marine hypotrichous ciliate Euplotes vannus, the transient K+ outward current, IK fast, was studied by use of a single-microelectrode voltage-clamp equipment. Activation and inactivation kinetics, and steady-state inactivation are comparable t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f13fbe6717508658d4bd4723be82a69
https://doi.org/10.1016/0005-2736(91)90392-l
https://doi.org/10.1016/0005-2736(91)90392-l
Autor:
Graziano Di Giuseppe, Maria Umberta Delmonte Corrado, Bruno Burlando, Thomas Krüppel, Fernando Dini, Paola Bagnoli, Davide Cervia, Chiara Ristori, Aldo Viarengo, Francesca Trielli, Graziano Guella
Publikováno v:
The Journal of eukaryotic microbiology. 55(5)
Among secondary metabolites, the acetylated hemiacetal sesquiterpene euplotin C has been isolated from the marine, ciliated protist Euplotes crassus, and provides an effective mechanism for reducing populations of potential competitors through its cy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::402ba7cbf647c008756d14a854307d66
https://pubmed.ncbi.nlm.nih.gov/19017056
https://pubmed.ncbi.nlm.nih.gov/19017056
Publikováno v:
The Journal of Membrane Biology. 135
Electrical responses upon mechanostimulation at the posterior cell end were investigated in the marine hypotrichous ciliate Euplotes vannus. A new mechanostimulator was developed to mimic stimuli that are identical with those involved in cell-cell co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::637612dab1e8dcd2dcecb2f59df0482f
https://doi.org/10.1007/bf00211097
https://doi.org/10.1007/bf00211097
Inward rectification by hyperpolarization-activated Na current in the marine ciliate Euplotes vannus
Autor:
Thomas Krüppel
Publikováno v:
The Journal of Membrane Biology. 133
The ionic mechanisms underlying inward or anomalous rectification have been studied in the marine hypotrichous ciliate Euplotes vannus. Inward-current pulses of moderate amplitude elicited time-dependent rectification that started from a hyperpolariz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a7468f8a1bcd7f3caacafd0d35a3779
https://doi.org/10.1007/bf00232025
https://doi.org/10.1007/bf00232025
Autor:
Thomas Krüppel, Wolfgang Lueken
Publikováno v:
The Journal of membrane biology. 116(1)
Ca and Na inward currents were recorded upon depolarizations in Euplotes after the blockage of K outward currents with intracellular Cs ions. The Na current was analyzed under voltage clamp and had the following properties: it activated to a maximum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bbafc42a0eb20f45854e1acbf8ef5dd
https://pubmed.ncbi.nlm.nih.gov/2165177
https://pubmed.ncbi.nlm.nih.gov/2165177