High diversity of magnetotactic deltaproteobacteria in a freshwater niche.
نویسندگان
چکیده
Knowledge of the diversity of magnetotactic bacteria in natural environments is crucial for understanding their contribution to various biological and geological processes. Here we report a high diversity of magnetotactic bacteria in a freshwater site. Ten out of 18 operational taxonomic units (OTUs) were affiliated with the Deltaproteobacteria. Some rod-shaped bacteria simultaneously synthesized greigite and magnetite magnetosomes.
منابع مشابه
A Preliminary Report on the Isolation and Identification of Magnetotactic bacteria from Iran Environment
Several species of Magnetotactic bacteria have been discovered recently. These bacteria synthesize intracellular magnetic nanoparticles in specific sizes and shapes and arrange them in chains. These particles called magnetosomes and can be used for drug-delivery, cell-targeting and hyperthermia. Magnetotactic bacteria navigate along the magnetic field; this process is known as ‘magnetotaxis’ wh...
متن کاملSpecific primers for the detection of freshwater alphaproteobacterial magnetotactic cocci.
Freshwater magnetotactic cocci within Alphaproteobacteria are of ecological interest due to their ubiquitous distribution in aquatic environments as well as their potential roles in iron cycling and the bulk magnetism of sediment. To effectively investigate the diversity and distribution of these cocci, specific primers (FMTCf and FMTCr) were developed. Their specificity, applicability, and eff...
متن کاملA cultured greigite-producing magnetotactic bacterium in a novel group of sulfate-reducing bacteria.
Magnetotactic bacteria contain magnetosomes--intracellular, membrane-bounded, magnetic nanocrystals of magnetite (Fe(3)O(4)) or greigite (Fe(3)S(4))--that cause the bacteria to swim along geomagnetic field lines. We isolated a greigite-producing magnetotactic bacterium from a brackish spring in Death Valley National Park, California, USA, strain BW-1, that is able to biomineralize greigite and ...
متن کاملMorphological features of elongated-anisotropic magnetosome crystals in magnetotactic bacteria of the Nitrospirae phylum and the Deltaproteobacteria class
High resolution transmission electron microscopy was used to study the crystallographic habits of the elon gated magnetite crystals, variously described as bullet-, toothor arrowhead-shaped, in two recently de scribed, uncultured, magnetotactic bacteria belonging to the Nitrospirae phylum designated Candidatus Magnetoovum mohavensis strain LO-1, and Candidatus Thermomagnetovibrio paiutensis s...
متن کاملReply to Wang and Chen: An ancient origin of magnetotactic bacteria.
Our recent paper (1) reports an ancient origin ofmagnetotactic bacteria (MTB) before or near the divergence between the phyla Nitrospirae and Proteobacteria, which has implications for the Archean geomagnetic field and paleoenvironment. Wang and Chen (2) appear to have misunderstood our paper, noting that we only consider the inference of a magnetotactic ancestor of Proteobacteria and Nitrospir...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Applied and environmental microbiology
دوره 79 8 شماره
صفحات -
تاریخ انتشار 2013