نتایج جستجو برای: archaea

تعداد نتایج: 7833  

Journal: :Applied and environmental microbiology 2011
Olga V Golyshina

About 10 years ago, a new family of cell wall-deficient, iron-oxidizing archaea, Ferroplasmaceae, within the large archaeal phylum Euryarchaeota, was described. In this minireview, I summarize the research progress achieved since then and report on the current status of taxonomy, biogeography, physiological diversity, biochemistry, and other research areas involving this exciting group of acido...

Journal: :Applied and environmental microbiology 2005
Gavin Collins Leanne O'Connor Thérèse Mahony Armin Gieseke Dirk de Beer Vincent O'Flaherty

Eight anaerobic granular sludges were surveyed for Crenarchaeota using rRNA gene cloning. Microbial arrangement and substrate uptake patterns were elucidated by fluorescent in situ hybridization and beta imaging. Group 1.3 Crenarchaeota represented up to 50% of Archaea and 25% of the total microbiota in five sludges. Crenarchaeota were localized in close association with methanogenic Archaea.

Journal: :Applied and environmental microbiology 2010
Jeremy A Dodsworth Lei Li Shiping Wei Brian P Hedlund John A Leigh Paul de Figueiredo

Escherichia coli transforms the methanogenic archaeon Methanococcus maripaludis at frequencies ranging from 0.2 x 10(-6) to 2 x 10(-6) per recipient cell. Transformation requires cell-to-cell contact, oriT, and tra functions, is insensitive to DNase I, and otherwise displays hallmarks of conjugation.

Journal: :Marine genomics 2015
Ji-Hyun Yun Hye Seon Song Seong Woon Roh Mi-Ja Jung Pil Soo Kim Jin-Woo Bae

Haloarcula sp. CBA1115, isolated from non-purified solar salts from South Korea, is a halophilic archaeon belonging to the family Halobacteriaceae. Here, we present the complete genome sequence of the strain Haloarcula sp. CBA1115 (4,225,046bp, with a G+C content of 61.98%), which is distributed over one chromosome and five plasmids. A comparison of the genome sequence of Haloarcula sp. CBA1115...

2016
Mathieu Groussin Bastien Boussau Gergely Szöllõsi Laura Eme Manolo Gouy Céline Brochier-Armanet Vincent Daubin

In a recent article, Nelson-Sathi et al. (NS) report that the origins of major archaeal lineages (MAL) correspond to massive group-specific gene acquisitions via HGT from bacteria (Nelson-Sathi et al. 2015. Origins of major archaeal clades correspond to gene acquisitions from bacteria. Nature 517(7532):77-80.). If correct, this would have fundamental implications for the process of diversificat...

2014
Germán F. Burguener Marcos J. Maldonado Santiago Revale Darío Fernández Do Porto Nicolás Rascován Martín Vázquez María Eugenia Farías Marcelo A. Marti Adrián Gustavo Turjanski

Halorubrum sp. strain AJ67, an extreme halophilic UV-resistant archaeon, was isolated from Laguna Antofalla in the Argentinian Puna. The draft genome sequence suggests the presence of potent enzyme candidates that are essential for survival under multiple environmental extreme conditions, such as high UV radiation, elevated salinity, and the presence of critical arsenic concentrations.

2014
Kira S. Makarova Mart Krupovic Eugene V. Koonin

The elaborate eukaryotic DNA replication machinery evolved from the archaeal ancestors that themselves show considerable complexity. Here we discuss the comparative genomic and phylogenetic analysis of the core replication enzymes, the DNA polymerases, in archaea and their relationships with the eukaryotic polymerases. In archaea, there are three groups of family B DNA polymerases, historically...

Journal: :Journal of bacteriology 1999
S Gribaldo V Lumia R Creti E Conway de Macario A Sanangelantoni P Cammarano

Occurrence of the hsp70 (dnaK) gene was investigated in various members of the domain Archaea comprising both euryarchaeotes and crenarchaeotes and in the hyperthermophilic bacteria Aquifex pyrophilus and Thermotoga maritima representing the deepest offshoots in phylogenetic trees of bacterial 16S rRNA sequences. The gene was not detected in 8 of 10 archaea examined but was found in A. pyrophil...

2015
Vidya de Gannes Gaius Eudoxie Isaac Bekele William J. Hickey

Understanding how community structure of Bacteria, Archaea, and Fungi varies as a function of edaphic characteristics is key to elucidating associations between soil ecosystem function and the microbiome that sustains it. In this study, non-managed tropical soils were examined that represented a range of edaphic characteristics, and a comprehensive soil microbiome analysis was done by Illumina ...

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