Journal ArticleDOI
High abundance of viruses found in aquatic environments.
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Using a new method for quantitative enumeration, up to 2.5 x IO8 virus particles per millilitre in natural waters indicate that virus infection may be an important factor in the ecological control of planktonic micro-organisms.Abstract:
The concentration of bacteriophages in natural unpolluted waters is in general believed to be low, and they have therefore been considered ecologically unimportant. Using a new method for quantitative enumeration, we have found up to 2.5 x 10(8) virus particles per millilitre in natural waters. These concentrations indicate that virus infection may be an important factor in the ecological control of planktonic micro-organisms, and that viruses might mediate genetic exchange among bacteria in natural aquatic environments.read more
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Microbial Biofilms: from Ecology to Molecular Genetics
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Marine viruses — major players in the global ecosystem
TL;DR: Viruses are by far the most abundant 'lifeforms' in the oceans and are the reservoir of most of the genetic diversity in the sea, thereby driving the evolution of both host and viral assemblages.
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Marine viruses and their biogeochemical and ecological effects
TL;DR: Newly developed fluorescence and molecular techniques leave the field poised to make significant advances towards evaluating and quantifying viruses' effects on biogeochemical and ecological processes.
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Virioplankton: viruses in aquatic ecosystems
KE Wommack,Rita R. Colwell +1 more
TL;DR: Novel applications of molecular genetic techniques have provided good evidence that viral infection can significantly influence the composition and diversity of aquatic microbial communities, supporting the hypothesis that viruses play a significant role in microbial food webs.
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References
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Journal ArticleDOI
Bacterial mortality and the fate of bacterial production
TL;DR: Improved methods for measuring bacterial growth and mortality and studies of the nonpredatory mechanisms of bacterial mortality are required to resolve the paradox of neither predation by metazoans nor protists balances rates of bacterial growth.
Journal ArticleDOI
An electron microscopic study of bacteriophages from marine waters
H. Frank,Karlheinz Moebus +1 more
TL;DR: Among the phages isolated from northern Atlantic water a high incidence was observed of strains the particles of which have long appendages, which 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.