A hyperthermophilic anaerobic archeon, strain HT3, was isolated from hydrothermal hot spring in Northeast Algeria. The strain is a regular coccus, highly motile, obligatory anaerobic, heterotrophic. It utilizes proteinaceous complex media (peptone, tryptone or yeast extract). Sulfur is reduced to Hydrogen sulfide and enhances growth. It shares with other Pyrococcus species the heterotrophic mode of nutrition, the hyperthermophily, the ability to utilize amino acids as sole carbon and nitrogen sources and the ether lipid composition. The optimal growth occurs at 80-85 degrees C, pH 7.5 and 1.5% NaCl. The G + C content was 43 mol%. Considering its morphology, physiological properties, nutritional features and phylogenetic analyses based on 16S rRNA gene sequencing, this strain is described as a new terrestrial isolate pertaining to the genus Pyrococcus.
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http://dx.doi.org/10.1007/s00792-006-0010-9 | DOI Listing |
NPJ Vaccines
December 2024
Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA.
Ann Bot
November 2024
Department of Plant Sciences, University of Cambridge, Cambridge CB2 3EA, UK.
Curr Microbiol
December 2024
Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, RJ, 21941-902, Brazil.
Overall coloration, size and thoracic morphology have formed the basis for taxonomic differentiation of taxa within the genus Eugaster at specific or subspecific levels over the years. The present study employs a range of methods to examine the morphology of 58 specimens (18♂♂ and 40♀♀) from Morocco, Algeria and Tunisia, collected from altitudes varying between 10 and 1795 metres AMSL. Moroccan sampling sites include localities on both the north and south of the High Atlas and from either side of the Middle Atlas, i.
View Article and Find Full Text PDFYeast
December 2024
Universidade Federal de Alagoas, Maceió, Alagoas, Brazil.
Biodiversity gaps in microorganisms, such as yeasts, blur our understanding of microbial diversity, introducing biases in their biogeography, ecology, and taxonomy. The genus Carlosrosaea is a potential plant growth booster, yet it is still a little-known yeast group. Considering that databases like GBIF and GenBank are powerful tools for exploring biodiversity data, we aimed to map the geographic distribution, ecological patterns, and taxonomic potential of the genus Carlosrosaea.
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