Academic literature on the topic 'Vorticella stalk'

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Journal articles on the topic "Vorticella stalk"

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Katoh, K., and Y. Naitoh. "CONTROL OF CELLULAR CONTRACTION BY CALCIUM IN VORTICELLA." Journal of Experimental Biology 189, no. 1 (1994): 163–77. http://dx.doi.org/10.1242/jeb.189.1.163.

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1. Vorticella extracted with Triton X-100 contracted (i.e. the cell body shrank and the stalk coiled) when the external Ca2+ concentration was raised. The degree of contraction increased with increasing Ca2+ concentration. 2. The threshold Ca2+ concentration for shrinkage of the cell body was identical with that for coiling of the stalk in Vorticella extracted with Triton X-100. 3. Living Vorticella showed a graded shrinkage of the cell body when Ca2+ buffer was injected into the cell body, while the stalk showed coiling of an all-or-nothing type. The degree of shrinkage of the cell body incre
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Amit, Kumar Verma. "EXPERIMENTS ON VORTICELLA STALK CONTRACTION DYNAMICS." International Journal of Zoology and Applied Biosciences 5, no. 1 (2020): 1–5. https://doi.org/10.5281/zenodo.3665354.

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Vorticella stalk is a highly contractile device exclusively used to know the behavior of motor proteins (spasmins & batonnets) for new information in the light of thermodynamics. For the same purpose preapproved materials and methods were used to reflect enzyme – kinetics by work, power and force measurement through applying equation of motion, mean and standard deviation, where in case of Vorticella stalk contraction, Vmax became constant at initial stages of mechanical motion but presented upper-limit burst prediction in the presence of DNFB (2, 4 – dinitro – flouro &nd
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KATOH, KAORU, and YUTAKA NAITOH. "A Mechanosensory Mechanism for Evoking Cellular Contraction in Vorticella." Journal of Experimental Biology 168, no. 1 (1992): 253–67. http://dx.doi.org/10.1242/jeb.168.1.253.

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1. Vorticella contracted (i.e. shrinkage of the cell body and coiling of the stalk) in response to being touched with a microneedle. 2. The threshold excursion of the microneedle required to evoke a contraction was smallest on the cell body. On the stalk, it was larger in regions farther from the cell body. 3. Hitting the stalk did not evoke a contraction if the stalk was mechanically clamped in a region between the site of the hit and the cell body. 4. Rapidly drawing a small portion of the cell body into a micropipette by suction evoked a contraction, whereas a similar stimulus applied to th
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Andrade, M. F., M. Valdez, A. Virgen-Ortiz, X. Trujillo, M. Huerta, and J. L. Marin. "Vorticella Stalk Characterization via Atomic Force Microscopy." Journal of Scanning Probe Microscopy 2, no. 1 (2007): 46–50. http://dx.doi.org/10.1166/jspm.2007.002.

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Ryu, Sangjin, and Paul Matsudaira. "Stall force does not affect the stalk coiling propagation of Vorticella convallaria." JMST Advances 3, no. 3 (2021): 35–40. http://dx.doi.org/10.1007/s42791-021-00041-z.

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Nagai, Moeto, Nobuyoshi Matsumoto, Takahiro Kawashima, and Takayuki Shibata. "Reversible motion control of Vorticella stalk in microchannel." Microelectronic Engineering 108 (August 2013): 28–32. http://dx.doi.org/10.1016/j.mee.2013.03.040.

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WIBEL, RON, EMANUEL J. VACCHIANO, JOHN J. MACIEJEWSKI, HOWARD E. BUHSE, and JOHN CLAMP. "The Fine Structure of the Scopula-Stalk Region of Vorticella convallaria." Journal of Eukaryotic Microbiology 44, no. 5 (1997): 457–66. http://dx.doi.org/10.1111/j.1550-7408.1997.tb05724.x.

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Moriyama, Yasushige, Shigeo Hiyama, and Hiroshi Asai. "High-Speed Video Cinematographic Demonstration of Stalk and Zooid Contraction of Vorticella convallaria." Biophysical Journal 74, no. 1 (1998): 487–91. http://dx.doi.org/10.1016/s0006-3495(98)77806-3.

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Ryu, Sangjin, and Paul Matsudaira. "Fluid dynamic estimation of the effective spring constant of the relaxing stalk of Vorticella convallaria." JMST Advances 2, no. 1 (2020): 9–14. http://dx.doi.org/10.1007/s42791-019-00028-x.

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Kamiguri, Junko, Noriko Tsuchiya, Ruri Hidema, et al. "Contraction behaviors of Vorticella sp. stalk investigated using high-speed video camera. I: Nucleation and growth model." BIOPHYSICS 8 (2012): 1–9. http://dx.doi.org/10.2142/biophysics.8.1.

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Conference papers on the topic "Vorticella stalk"

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Kizghin, Dilziba, Sangjin Ryu, Younggil Park, and Sunghwan Jung. "Swimming of the Trophont Zooid of Vorticella Convallaria." In ASME 2021 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/fedsm2021-63265.

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Abstract Vorticella convallaria is a ciliated protozoan found in freshwater habitats. In the sessile or stalked trophont form, V. convallaria is shaped somewhat like a balloon as it has a body or zooid (the head of the balloon) that is about 40 μm large with cilia around its oral part, and a stalk (the string of a balloon) anchoring the zooid to a solid surface. When a trophont zooid of V. convallaria detached from the stalk, the zooid swims around in water by creating water flow using its oral cilia. In contrast to the stalk contraction of V. convallaria that has been well studied, the swimmi
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