| | 1 | Author
| Stephan Bamberger, Günter Valet, Friedrich Storch, Gerhard Ruhenstroth-Bauer | Requires cookie* | | | Title
| Electromagnetically Induced Fluid Streaming as a Possible Mechanism of the Biomagnetic Orien tation of Organisms  | | | | Abstract
| The results show that both the direction and the intensity of the geomagnetic field can be sensed within the chamber of a Zeiss Cytopherometer. This suggests that electro magnetically induced fluid streaming might play a role in the perception of the geomagnetic field by organisms, although it is not clear at present in which organ the per ception occurs. A basic requirement for such an organ would be an anisotropy of cells or cellular structures. The nervous system with its parallel axons, or specific cells associated with the nervous system, could thus be possible locations of the sensitivity towards magnetic fields. | | | |
Reference
| Z. Naturforsch. 33c, 159—160 (1978); received November 24 1977 | | | |
Published
| 1978 | | | |
Keywords
| Electric Field, Magnetic Earth Field, Suspended Particle, Magnetic, Sensitivity, Organism | | | |
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| | | | | TEI-XML for
| default:Reihe_C/33/ZNC-1978-33c-0159_n.pdf | | | | Identifier
| ZNC-1978-33c-0159_n | | | | Volume
| 33 | |
| 2 | Author
| T.K M Andal | Requires cookie* | | | Title
| Electron Microscopic Study of the Polymyxin T reated Vibrio cholerae Cells | | | | Abstract
| Polymyxin B produces dose dependent changes in the surface topography o f pathogenic Vibrio cholerae cells. The susceptibilities o f various vibrio strains to PB are also studied through analytical techniques. Statistical analysis shows significant differences among the four vibrios with regard to their sensitivities to PB. the classical strains being the most sensitive. Treating the classical strain with subinhibitory concentration o f PB, we observed with both SEM and TEM that the normal sm ooth surface o f the cell envelope develops some protruded structures (blebs and crenations). Further the TEM study o f the ultrathin sections reveal that the rod like projections are formed by protrusions o f the outer-membrane o f the cell wall. | | | |
Reference
| Z. Naturforsch. 45c, 902 (1990); received October 31 1989/January 3 1990 | | | |
Published
| 1990 | | | |
Keywords
| Polymyxin B, Vibrios, Sensitivities, Lysis and Viability, Surface Topography, Blebs and Crenations | | | |
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| default:Reihe_C/45/ZNC-1990-45c-0902.pdf | | | | Identifier
| ZNC-1990-45c-0902 | | | | Volume
| 45 | |
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