نتایج جستجو برای: alphaproteobacteria
تعداد نتایج: 909 فیلتر نتایج به سال:
A new primer set was designed to specifically amplify ca. 1,100 bp of aoxB genes encoding the As(III) oxidase catalytic subunit from taxonomically diverse aerobic As(III)-oxidizing bacteria. Comparative analysis of AoxB protein sequences showed variable conservation levels and highlighted the conservation of essential amino acids and structural motifs. AoxB phylogeny of pure strains showed well...
Phosphate release from sediments hampers the remediation of aquatic systems from a eutrophic state. Microbial phosphatases in sediments release phosphorus during organic matter degradation. Despite the important role of phosphatase-expressing bacteria, the identity of these bacteria in sediments is largely unknown. We herein presented a culture-independent method to phylogenetically characteriz...
Global climate change scenarios predict that lake water temperatures will increase up to 4 °C and extreme weather events, such as heat waves large temperature fluctuations, occur more frequently. Such changes may result in the of aquatic litter decomposition on shifts diversity structure bacteria communities this period. We designed a two-month mesocosm experiment explore how constant (+4 than ...
Symbiotic associations between bacteria and ciliate protists are rather common. In particular, several cases were reported involving of the alphaproteobacterial lineage Rickettsiales, but diversity, features, interactions in these still poorly understood. this work, we characterized a novel protist strain originating from Brazil its associated Rickettsiales endosymbiont by means live ultrastruc...
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