Draft Genome Sequence of Antarctic Psychrotroph Streptomyces fildesensis Strain INACH3013, Isolated from King George Island Soil.

The draft genome sequence of strain INACH3013, a psychrotrophic bacterium isolated from Northwest Antarctic soil, was reported. The genome sequence totaling 9,306,785 bp resulted from 122 contigs characterized by a GC content of 70.55%.

An unusual overrepresentation of genetic factors related to iron homeostasis in the genome of the fluorescent Pseudomonas sp. ABC1.

Members of the genus Pseudomonas inhabit diverse environments, such as soil, water, plants and humans. The variability of habitats is reflected in the diversity of the structure and composition of their genomes. This cosmopolitan bacterial genus includes species of biotechnological, medical and environmental importance.

Complete Genome Sequence of Strain ABC1, Isolated from Soil.

Here, we report the complete genome sequence of strain ABC1, which was isolated from a soil interstitial water sample collected at the University Adolfo Ibañez, Valparaiso, Chile. We assembled PacBio reads into a single closed contig with 209× mean coverage, yielding a 4,035,896-bp sequence with 62% GC content and 3,555 predicted genes.

Novel system configuration with activated sludge like-geometry to develop aerobic granular biomass under continuous flow.

A novel continuous flow system with "flat geometry" composed by two completely mixed aerobic tanks in series and a settler was used to promote the formation of aerobic granular sludge. Making similarities of this system with a typical sequencing batch reactor (SBR), for aerobic granules cultivation, the value of the tank 1/tank 2 vol ratio and the biomass recirculation rate would correspond with the feast/famine length ratio and the length of the operational cycle, respectively, while the settler upflow liquid velocity imposed would be related to the settling time. From the three experiments performed the best results were obtained when the tank 1/tank 2 vol ratio was of 0.

Composition dynamics of epilithic intertidal bacterial communities exposed to high copper levels.

Copper has a dual role for organisms, both as micronutrient and toxic element. Copper mining activities have an enormous ecological impact because of the extraction process and the consequent release of copper-containing waste materials to the environment. In northern Chile, mainly in the Chañaral coastal area, this phenomenon is clearly evident.