Paramecium caudatum
GRAVIRESPONSES IN PARAMECIUM CAUDATUM AND DIDINIUM NASUTUM EXAMINED UNDER VARIED HYPERGRAVITY CONDITIONS
... independent of gravity. Propulsion was determined from the intersection of regression lines of the gravity-dependent upward and downward swimming velocities. The rates of swimming and sedimentation, and consequently the ...
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Membrane potential responses of paramecium caudatum to bitter substances: existence of multiple pathways for bitter responses
... potentials were not involved in the membrane potential responses even when the membrane was depolarized and, therefore, the membrane potential responses recorded are receptor potentials to the substances examined. The ...
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QUANTITATIVE ANALYSIS OF CHEMOACCUMULATION IN SPECIMENS OF PARAMECIUM CAUDATUM IN RELATION TO THEIR MOTILE ACTIVITIES
... individual Paramecium caudatum from one solution to another requires first its arrival at the border between the two solutions, and second its crossing the ...
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Determination of Nucleotide Sequences of Mitochondrial Plasmid pGT704 of Paramecium caudatum
... mitokondria Paramecium dapat dibagi atas dua kelom- pok: tipe I yang dideteksi sebagai suatu pita tunggal dan tipe II yang dideteksi sebagai satu kumpulan dari empat pita dalam gel ...pada Paramecium ...
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The Relations Between Membrane Potential and Parameters of Ciliary Beat In Free Swimming Paramecium Caudatum
... Changes in the membrane potential of Paramecium caudatum produce two effects: an increase in frequency of beat of up to 23 ± 3 % mV"1 at 25 °C for both depolarizations and hyperpolarizat[r] ...
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CYTOTOXICITY OF MONOCROTOPHOS ON FRESH WATER CILIATE, Paramecium caudatum
... like Paramecium caudatum are considered as bioindicator of toxicity stress and chemical ...used Paramecium caudatum as a model cell to study the impact of ...
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Relaxation and activation of graviresponses in Paramecium caudatum
... of Paramecium caudatum. However, helical tracks of Paramecium cells are commonly straight in the absence of a gravitational cue (Hemmersbach-Krause et ...
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ATP regenerating system in the cilia of Paramecium caudatum
... The energy supply for eukaryotic ciliary and flagellar movement is thought to be maintained by ATP- regenerating enzymes such as adenylate kinase, creatine kinase and arginine kinase. In this study, the energy- supplying ...
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Identification of Two Nickel Ion-Induced Genes, NCI16 and PcGST1, in Paramecium caudatum
... P. caudatum, six ...P. caudatum homologs found in the database, PCAUDP12020 was the most similar to PcGST1 (E value, ...the Paramecium PcGST1 homologs, ⬎50 similar pro- teins were identified (cutoff ...
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Insights into Three Whole-Genome Duplications Gleaned from the Paramecium caudatum Genome Sequence
... expression. Paramecium cells can sense the amount of DNA present in their macronucleus, so that they “synthesize similar amounts of macronuclear DNA, regard- less of the number of macronuclei or their ...
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BEHAVIORAL MUTANTS IN PARAMECIUM CAUDATUM
... All F, progeny showed normal behavior, and F, progeny obtained by selfing conjugation or sibling crosses of F, gave segregation of CNR to wild type with ratios not signific[r] ...
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Determination of Pure Voltage Dependent Ca2+ Current in Paramecium Caudatum and its Inhibition by Divalent Cations
... Increasing the amplitude of the voltage step first leads to a rapid Ca2+ inward current that reaches maximum at a depolarization of about 35 mV relative to the resting level.. Membrane c[r] ...
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GRAVITY INDUCED CHANGES IN PROPULSION OF PARAMECIUM CAUDATUM: A POSSIBLE ROLE OF GRAVIRECEPTION IN PROTOZOAN BEHAVIOUR
... Hyperpolarization-induced changes in ciliary activity also cause changes in the rate of cell rotation rolling, yawing and possibly pitching, resulting in a reduction of the pitch angle o[r] ...
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GENES CONTROLLING MATING-TYPE SPECIFICITY IN PARAMECIUM CAUDATUM: THREE LOCI REVEALED BY INTERSYNGENIC CROSSES
... double heterozygotes. An inevitable consequence of this model is the appear- ance of mating-typeless clones when one of the two loci is homozygous for one syngen and the othe[r] ...
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Control of the Orientation of Cilia by ATP and Divalent Cations in Triton Glycerol Extracted Paramecium Caudatum
... The reorientation responses in the Mg-ATP test solutions When a test solution contained a minute amount of Ca + less than \0fimo\l~ together with 1 mmol I"1 ATP, cilia of the model did [r] ...
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An anticalmodulin drug, W 7, inhibits the voltage dependent calcium current in Paramecium caudatum
... This early outward K-current seen in the Ca-K solution using 2 M - K C 1 electrodes was unaffected by 150/iM W-7 but was eliminated by using 2M-CSC1 electrodes and 10 mM external TEA-C1,[r] ...
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Control of Ciliary Activities by Adenosinetriphosphate and Divalent Cations in Triton Extracted Models of Paramecium Caudatum
... On the other hand, the present finding that reactivity of the extracted cilia to ATP and/or Mg 2+ is the same almost all over the model Table 1 supports the possibility that the localize[r] ...
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Studies in the Respiration of Paramecium Caudatum
... Methylene blue increased oxygen consumption in the presence of succinate still further, and also abolished the inhibition of this extra respiration by cyanide and azide.. It is concluded[r] ...
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Changes in Membrane Potential during Adaptation to External Potassium Ions in Paramecium Caudatum
... Since the K + conductance gK is much larger than the Ca 2+ conductance gca m the present experimental conditions Naitoh & Eckert, 1974, the membrane conductances in Table 2 almost corres[r] ...
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MEIOTIC NONDISJUNCTION AND ANEUPLOIDS IN INTERSYNGENIC HYBRIDS OF PARAMECIUM CAUDATUM
... that, at first, appeared to show that the E mating types of different syngens are controlled not by multiple alleles of a single locus but by different closely l[r] ...
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