Molecular identification of the occurrence of magnetotactic bacteria in fresh water sediments (Czech Republic)

Abstract

Magnetotactic bacteria (MTB) are of considerable interest because of their importance in the manufacture of various bioinspired materials. In order to find out the status of magnetotactic bacteria at three different sediment in Czech Republic, samples collected from both standing and running freshwaters were subjected to molecular diversity analysis by using 16S rRNA gene approach. Total community DNA from sediment sample was isolated and used for PCR, cloning and sequence analysis. Of the 24 analyzed sequences, six clones are closely related to Magnetobacterium sp. affiliated with the Nitrospira phylum which showed the dominance of Magnetobacterium phylotypes in the sample. This study will provide useful insight about the community structure of MTB in this particular geographical region. However more detailed and specific studies are warranted in order to properly assess the community structure of MTB’s in fresh water sediments.

Microbe‐Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications

“…[ 39–42 ] These bacteria have been observed in a wide range of ecosystems, ranging from marine sediments, lagoons, ponds, soils to some extreme environments. [ 43–47 ] Other nonbacterial prokaryotes such as sulfur‐reducing, hyperthermophilic, heterotrophic archaea can also produce greigite. [ 48 ] The earliest reports of magnetotactic bacteria (MTB) in 1963 [ 49 ] and 1975 [ 50 ] pioneer the discovery of MTB with diverse morphology, including cocci, spirilla, vibrios, ovoid bacteria, rod‐shaped bacteria, and multicellular bacteria.…”