PULSATION OF THE CONTRACTILE VACUOLE OF PARAMECIUM AS AFFECTED BY TEMPERATURE [PDF]
1. The rate of pulsation of the anterior contractile vacuole of Paramecium caudatum under chloretone anesthesia has been determined over a range of temperatures from 9–31°C. It has been found that the rate is a logarithmic function of the temperature according to the Arrhenius equation. From 9–16° the temperature characteristic (µ) has the value 25,600;
William H. Cole
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Rab8a regulates the exocyst-mediated kiss-and-run discharge of theDictyosteliumcontractile vacuole [PDF]
A molecular dissection of contractile vacuole (CV) discharge shows that Rab8a is recruited to the CV a few seconds before the exocyst. Together they tether it to the plasma membrane and commit it to fusion.
Miriam Essid+4 more
europepmc +3 more sources
The Dictyostelium type V myosin MyoJ is responsible for the cortical association and motility of contractile vacuole membranes [PDF]
The contractile vacuole (CV) complex in Dictyostelium is a tubulovesicular osmoregulatory organelle that exhibits extensive motility along the actin-rich cortex, providing a useful model for investigating myosin-dependent membrane transport.
Goeh Jung+2 more
europepmc +3 more sources
The Nature of the Contractile Vacuole [PDF]
FOR some years we have been investigating the cytoplasmic bodies in the protozoa. In NATURE of March 10, 1923, we were able to give the first account of the stages undergone by the Golgi bodies in the sporozoon Adelea. A full account of this work has been published in the Q.J.M.S., vol. 67, Part III., 1923. More recently M. Ph.
Shana D. King, J. Brontë Gatenby
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The Contractile Vacuole and Related Structures in Tetrahymena pyriformis* [PDF]
SYNOPSIS. The nephridial system of T. pyriformis consists of a contractile vacuole with its two pores and an elaborate network of tubules. Both the vacuole and its tubules constitute a continuous system of single membranes of approximately 70 Å in thickness. Tubular fibrils of about 250 Å extend from the pore wall to the vacuole membrane and appear to
Elliott, Alfred M., Bak, Il Jin
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The old and the new about the contractile vacuole of Trypanosoma cruzi. [PDF]
Osmoregulation is a conserved cellular process required for the survival of all organisms. In protists, the need for robust compensatory mechanisms that can maintain cell volume and tonicity within physiological range is even more relevant, as their life
Jimenez V, Miranda K, Augusto I.
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Iron metabolism and resistance to infection by invasive bacteria in the social amoeba Dictyostelium discoideum [PDF]
Dictyostelium cells are forest soil amoebae, which feed on bacteria and proliferate as solitary cells until bacteria are consumed. Starvation triggers a change in life style, forcing cells to gather into aggregates to form multicellular organisms ...
Salvatore eBozzaro+2 more
doaj +4 more sources
Structure and dynamics of the contractile vacuole complex inTetrahymena thermophila [PDF]
The contractile vacuole complex (CVC) is a dynamic and morphologically complex membrane organelle, comprised of a large vesicle (bladder) linked with a tubular reticulum (spongiome).
Chao-Yin Cheng+4 more
openalex +2 more sources
Whole cell reconstructions of Leishmania mexicana through the cell cycle. [PDF]
The unicellular parasite Leishmania has a precisely defined cell architecture that is inherited by each subsequent generation, requiring a highly coordinated pattern of duplication and segregation of organelles and cytoskeletal structures. A framework of
Molly Hair+7 more
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mSphere of Influence: Compartmentalized cAMP signals in American trypanosomes [PDF]
Noelia Lander works on cell signaling in American trypanosomes and studies the role of cyclic adenosine monophosphate (cAMP) microdomains in environmental sensing and differentiation. In this mSphere of Influence, Dr.
Noelia Lander
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