Natural host infection by antarctic marine podovirus Report as inadecuate




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Walter P. Mac Cormack ;Revista Argentina de Microbiología 2012, 44 4

Author: José L. López

Source: http://www.redalyc.org/


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Revista Argentina de Microbiología ISSN: 0325-7541 ram@aam.org.ar Asociación Argentina de Microbiología Argentina López, José L.; Mac Cormack, Walter P. Natural host infection by Antarctic marine podovirus Revista Argentina de Microbiología, vol.
44, núm.
4, octubre-diciembre, 2012, p.
324 Asociación Argentina de Microbiología Buenos Aires, Argentina Available in: http:--www.redalyc.org-articulo.oa?id=213025174014 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative ISSN 0325-7541 Revista Argentina de Microbiología (2012) 44: 324 IMÁGENES MICROBIOLÓGICAS Natural host infection by Antarctic marine podovirus Infección de un hospedador natural por un podovirus antártico marino Viruses are the most numerous and diverse biological entities in the oceans, with numbers (~107-108-ml) often exceeding those exhibited by their bacterial hosts (~106-ml) by several orders of magnitude (1).
Bacteriophages are found wherever microbial life is present and play a significant role in aquatic ecosystems.
They affect microbial abundance, production, respiration, diversity, genetic transfer, nutrient cycling and particle size distribution.
Viral infection is a stochastic process and depends on the abundance of viruses and hosts (1).
Theoretical considerations regarding this mechanism suggest that viruses might selectively kill the most abundant members of the prokaryotic community and, in so doing, they influence species richness (3).
A number of studies support this hypothesis (4).
More recently, virus-mediated genetic exchange through generalized transduction as an additional mechanism potentially involved in shaping prokaryotic community structure has received attention as well (2). In this work, we studied, using a transmission elect...





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