HIGH HYDROSTATIC PRESSURE EFFECTS ON AMOEBA PROTEUS
نویسندگان
چکیده
منابع مشابه
High Hydrostatic Pressure Effects on Amoeba Proteus
Upon application of hydrostatic pressure to Amoeba proteus, all movement stops and the organism assumes a spherical shape (1). The attainment of a completely spherical shape is a gradual process requiring from 5 to 20 minutes, depending upon the pressure and temperature level. This "spher-ing" under pressure has been attributed to the reversible disruption of the plasmagel integrity and consequ...
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Although pinocytosis was observed in amoebae by Edwards (1) as early as 1925, relatively little has been learned about its mechanism (2-5). Pinocytosis is a process by which materials, including relatively large molecules which ordinarily do not pass through the cell membrane, enter the interior of a cell. In amoebae, pinocytosis typically begins with the formation of small, relatively agranula...
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The irradiation of living organisms with ultra sound causes effects in several ways (E l’p in er1) . High intensities damage the cells markedly, causing irreversible cell changes, rupture of cell walls etc. But even low intensities of ultrasound have been shown to affect cell parameters (see review by H ill2) . In this paper we will show some qualitative results of ultrasonic irradiation of Am...
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The effect of polylysine on pinocytosis and the cell surface of Amoeba proteus was investigated. The intensity of the pinocytotic response was evaluated by a channel counting method, and the surface was examined by means of transmission and scanning electron microscopy. Cells treated with polylysine and then immersed in a protein pinocytosis inducer showed a higher intensity of channel formatio...
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In this paper, drain-source current, transconductance and cutoff frequency in AlGaN/GaN high electron mobility transistors have been investigated. In order to obtain parameters of exact AlGaN/GaN high electron mobility transistors such as electron density, the wave function, band gap, polarization charge, effective mass and dielectric constant, the hydrostatic pressure and temperature effects a...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1965
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.24.2.332