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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional de Colombia
2011
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| Online Access: | https://www.redalyc.org/articulo.oa?id=49622401009 |
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Table of Contents:
- CHARACTERIZATION OF NATURAL MICROCOSMS OF ESTUARINE MAGNETOTACTIC BACTERIA ALEJANDRO SALAZAR ALVARO MORALES MARCO MÁRQUEZ Ingeniería estuary microcosm magnetosome Magnetotactic bacteria (MTB) 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. 2011 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49622401009 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.168 Vol.78