Journal ArticleDOI
Diversity of magnetotactic bacteria from a French pristine Mediterranean area.
Maxime Fuduche,Anne Postec,Sylvain Davidson,Jean-Paul Chauvin,Grégoire Galès,Agnès Hirschler-Réa,Bernard Ollivier,Long-Fei Wu,Nathalie Pradel +8 more
Reads0
Chats0
TLDR
A particularly high diversity of MTB was observed, with cocci phylogenetically distributed across the order Magnetococcales, including a novel cluster with sequences from the Mediterranean Sea designated as “Med group”, and novel morphotypes.Abstract:
Magnetotactic bacteria synthesize intracellular magnetite and/or greigite magnetosome crystals They play a significant role in both iron and sulfur cycles in sedimentary aquatic environments To get insight into the bio-geochemical contribution of MTB, more studies concerning their ecology and their distribution in diverse habitats are necessary The MTB community of an oil-industry polluted area of the French Mediterranean coast has been previously investigated Here, we investigate the MTB community from coastal sediments of a Mediterranean pristine area using optical and transmission electron microscopy and phylogenetic analysis based on 16S rRNA gene sequences A particularly high diversity of MTB was observed, with cocci phylogenetically distributed across the order Magnetococcales, including a novel cluster with sequences from the Mediterranean Sea designated as "Med group", and novel morphotypesread more
Citations
More filters
Journal ArticleDOI
Diversity and ecology of and biomineralization by magnetotactic bacteria
TL;DR: This study conducted a search of public metagenomic databases and identified six novel magnetosome gene cluster-containing genomic fragments affiliated with the Deltaproteinobacteria and Gammaproteobacteria classes of the Proteobacteria phylum, the Nitrospirae phylum and the Planctomycetes phylum from the deep subseafloor, marine oxygen minimum zone, groundwater biofilm and estuary sediment.
Journal ArticleDOI
Bacterial community structure and novel species of magnetotactic bacteria in sediments from a seamount in the Mariana volcanic arc.
Jia Liu,Wenyan Zhang,Wenyan Zhang,Xue-Gong Li,Xue-Gong Li,Xuegang Li,Xumiao Chen,Jinhua Li,Jinhua Li,Zhaojie Teng,Cong Xu,Claire Lise Santini,Claire Lise Santini,Li Zhao,Yuan Zhao,Heng Zhang,Wei-Jia Zhang,Wei-Jia Zhang,Kuidong Xu,Chaolun Li,Yongxin Pan,Yongxin Pan,Tian Xiao,Tian Xiao,Hongmiao Pan,Hongmiao Pan,Long-Fei Wu,Long-Fei Wu +27 more
TL;DR: Geographic properties of the seamount stations are important in shaping the bacterial community structure and the MTB composition, and 16 novel species of MTB specific to this seamount are identified.
Journal ArticleDOI
The detection of magnetotactic bacteria in deep sea sediments from the east Pacific Manganese Nodule Province.
Yi Dong,Yi Dong,Jinhua Li,Jinhua Li,Wuchang Zhang,Wenyan Zhang,Wenyan Zhang,Yuan Zhao,Yuan Zhao,Tian Xiao,Tian Xiao,Long-Fei Wu,Long-Fei Wu,Hongmiao Pan,Hongmiao Pan +14 more
TL;DR: The data suggest that diverse putative MTB are widely distributed in deep sea surface sediments from the east Pacific Manganese Nodule Province, and Interestingly, OTU759 was widely distributed, occurring at all study sites.
Journal ArticleDOI
Culture‐independent characterization of novel psychrophilic magnetotactic cocci from Antarctic marine sediments
Fernanda Abreu,Ana Carolina,V. Araujo,Pedro Leão,Karen T. Silva,Fabíola Marques de Carvalho,Oberdan de Lima Cunha,Luiz Gonzaga Paula de Almeida,Corey Geurink,Marcos Farina,Daniel Rodelli,Luigi Jovane,Vivian Helena Pellizari,Ana Tereza Ribeiro de Vasconcelos,Dennis A. Bazylinski,Ulysses Lins +15 more
TL;DR: The consistent and continuous low temperature of the sediment where the magnetotactic cocci are present (always below 1°C) suggests that these MTB from maritime Antarctica are psychrophiles.
Journal ArticleDOI
Distribution and diversity of magnetotactic bacteria in sediments of the Yellow Sea continental shelf
TL;DR: In this paper, the authors investigated the diversity and spatial distribution of magnetotactic bacteria (MTB) on the continent shelf of the Yellow Sea and found that diverse MTB are widely distributed in the seafloor sediment of theYellow Sea, with Nitrospirae likely being the dominating group, and that the abundance of MTB were influenced by sediment grain size.
References
More filters
Journal ArticleDOI
MUSCLE: multiple sequence alignment with high accuracy and high throughput
TL;DR: MUSCLE is a new computer program for creating multiple alignments of protein sequences that includes fast distance estimation using kmer counting, progressive alignment using a new profile function the authors call the log-expectation score, and refinement using tree-dependent restricted partitioning.
Journal ArticleDOI
Profiling of complex microbial populations by denaturing gradient gel electrophoresis analysis of polymerase chain reaction-amplified genes coding for 16S rRNA
TL;DR: Analysis of the genomic DNA from a bacterial biofilm grown under aerobic conditions suggests that sulfate-reducing bacteria, despite their anaerobicity, were present in this environment.
Journal ArticleDOI
A quick method for the determination of dissolved and precipitated sulfides in cultures of sulfate-reducing bacteria
TL;DR: In this paper, a colloidal solution of copper sulfide was determined spectrophotometrically as a colloid solution of sulfide, and the maximum deviation error was below 5%.
Journal ArticleDOI
Electron Microscopy Study of Magnetosomes in a Cultured Coccoid Magnetotactic Bacterium
TL;DR: Intracellular magnetite (Fe3O4) crystals produced by the magnetotactic bacterium MC-1 were analysed by transmission electron microscopy (TEM) and showed that the crystal morphology was controlled even at early stages of development.
Journal ArticleDOI
Magnetotactic bacteria, magnetosomes and their application
TL;DR: The magnetosome formation and the magnetisms of MTB and bacterial magnetosomes are focused on, as well as on the significances and applications ofMTB and their intracellular magnetic mineral crystals.