An electron microscopic study of bacteriophages from marine waters |
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Authors: | Hermann Frank Karlheinz Moebus |
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Institution: | (1) Max-Planck-Institut für Entwicklungsbiologie, Spemannstr. 35/EM, D-7400 Tübingen, FRG;(2) Biologische Anstalt Helgoland (Meeresstation), D-2192 Helgoland, FRG |
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Abstract: | The morphology of 75 bacteriophage strains isolated from water samples collected in the North Sea or in the northern Atlantic
was studied by electron microscopy. Only tailed phages were observed (bradley groups A, B, and C). According to structural
similarities, the strains are ascribed to 12 groups, 5 of which comprise types of marine phages not reported before. Four
of these 5 groups include phage types that have not been detected from any other source. Among the phages isolated from northern
Atlantic water a high incidence was observed of strains the particles of which have long appendages. Certain types of the
northern Atlantic phages investigated were derived only from samples collected either east or west of the Azores. This finding
agrees with former observations pointing to the existence of different populations of closely related bacteria east and west,
respectively, of the northern Mid-Atlantic Ridge. |
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Keywords: | |
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