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Characterization of natural microcosms of estuarine magnetotactic bacteria

SALAZAR, ALEJANDRO and MORALES, ALVARO and MÁRQUEZ, MARCO (2011) Characterization of natural microcosms of estuarine magnetotactic bacteria. Dyna; Vol. 78, núm. 168 (2011); 72-80 DYNA; Vol. 78, núm. 168 (2011); 72-80 2346-2183 0012-7353 .

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URL oficial: http://revistas.unal.edu.co/index.php/dyna/article...

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To date, no complete study of magnetotactic bacteria’s (MTB) natural microcosms in estuarine or tropical environments has been reported. Besides, almost all the studies around magnetotactic bacteria have been based on fresh waters away from the Equator. In this work, we focused the experimental region at the Equator and present a comprehensive mineralogical and physicochemical characterization of two estuarine bacterial microcosms. The results show that mineral lixiviation in the sediments may be an important factor in the solubilization of elements required by magnetotactic bacteria. Specifically, we show that clinochlore, phlogopite, nontronite, and halloysite could be among the main minerals that lixiviate iron to the estuarine microcosms. We conclude that nitrate concentration in the water should not be as low as those that have been reported for other authors to achieve optimal bacteria growth. It is confirmed that magnetotactic bacteria do not need large amounts of dissolved iron to grow or to synthesize magnetosomes.

Tipo de documento:Artículo - Article
Información adicional:Derechos de autor reservados
Palabras clave:Magnetotactic bacteria (MTB), magnetosome, microcosm, estuary
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:28078
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :27 Junio 2014 19:15
Ultima modificación:27 Noviembre 2017 22:20
Ultima modificación:27 Noviembre 2017 22:20
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