Abstract The Dallol geothermal area in the northern part of Danakil Depression (up to 124–155 meter below sea level) is deemed one most extreme environments on Earth. notable for being Afar Depression, an incipient seafloor-spreading center located at triple junction, between Nubian, Somali and Arabian plates, hosting very edge natural physical-chemical extremities. dominated by Assale salt plain (an accumulation marine evaporite deposits) hosts volcano. Here, interaction evaporitic deposit...

Southwest Spain’s Río Tinto is a stressful acidic microbial habitat with noticeably high concentration of toxic heavy metals. Nevertheless, it has an unexpected degree eukaryotic diversity in its basin, fungal saprotrophs. Although some studies on the Rio have been published, none them used molecular methodologies to describe and taxonomic affiliations that emerge along river different seasons. The aim present study was isolate seasonal community basin correlation physicochemical parameters...

Salar de Uyuni (SdU) is the largest hypersaline salt flat and highest lithium reservoir on Earth. In addition to extreme temperatures high UV irradiance, SdU has concentrations of chaotropic salts which can be important factors in controlling microbial diversity. Here, for first time we characterize viral diversity this environment during two seasons, as well physicochemical characteristics prokaryotic communities analysed samples. Most selected samples showed a peculiar composition...

The mangrove ecosystems of the Department Atlántico (Colombian Caribbean) are seriously threatened by problems hypersalinization and contamination, especially heavy metals from Magdalena River. plants have developed various mechanisms to adapt these stressful conditions, as well associated microbial populations that favor their growth. In present work, tolerance detoxification capacity metals, mercury, a halotolerant endophytic bacterium isolated species Avicennia germinans located in Balboa...

Despite being considered an extreme environment, several studies have shown that life in the deep subsurface is abundant and diverse. Microorganisms inhabiting these systems live within rock pores and, therefore, geochemical geohydrological characteristics of this matrix may influence distribution underground biodiversity. In study, correlative fluorescence Raman microscopy (Raman-FISH) was used to analyze mineralogy associated with presence members genus Acidovorax , iron oxidizing...

Abstract The arsenic species present in samples of the crayfish Procambarus clarkii caught area affected by toxic mine‐tailing spill at Aznalcóllar (Seville, Southern Spain) were analyzed. total contents ranged between 1.2 and 8.5 µg g −1 dry mass (DM). With regard to different arsenic, highest concentrations for inorganic (0.34–5.4 DM), whereas arsenobetaine, unlike situation found marine fish products, was not major (0.16 ± 0.09 DM). Smaller arsenosugars 1a (0.18 0.11 1b (0.077 0.049 1c...

Salar de Uyuni (SdU) is the biggest athalosaline environment on Earth, holding a high percentage of known world Li reserves. Due to its hypersalinity, temperature and humidity fluctuations, exposure UV radiation, elevated concentration chaotropic agents like MgCl2 , LiCl NaBr, SdU considered polyextreme environment. Here, we report prokaryotic abundance diversity 46 samples obtained in different seasons geographical areas. The identified bacterial community was found be more heterogeneous...

ABSTRACT T2.26MG-112.2 is a Ciceribacter strain that has been isolated from the deep subsurface of Iberian Pyrite Belt. We report its draft genome consisting chromosome ≈4.9 Mb and plasmid 357 kb. The annotation reveals 4,824 coding sequences, 48 tRNA genes, 1 rRNA operon.

The Iberian Pyrite Belt (IPB) is one of the largest deposits sulphidic minerals on Earth. Río Tinto raises from its core, presenting low a pH and high metal concentration. Several drilling cores were extracted IPB's subsurface, strain T2.3D-1.1 was isolated core at 121.8 m depth. We aimed to characterize this subterranean microorganism, revealing phylogenomic affiliation (Average Nucleotide Identity, digital DNA-DNA Hybridization) inferring physiology through genome annotation, backed with...

Dalangtan Playa is the second largest salt playa in Qaidam Basin, north-western China. The hyper saline deposition, extremely arid climate and high UV radiation make a Mars analogue both for geomorphology life preservation. To better understand microbial at Dalangtan, culture-dependent culture-independent methods were examined simultaneously, environment conditions evaporitic mineral assemblages investigated. Ten thirteen subsurface samples collected along 595-cm deep profile (P1) 685-cm...

Rhodoplanes sp. strain T2.26MG-98 was isolated from the deep subsurface of Iberian Pyrite Belt. We report its draft genome, consisting 214 contigs with a chromosome ∼5.6 Mb and 53.7-kb plasmid. The annotation identified 4,994 coding DNA sequences, 1 rRNA operon, 57 tRNA genes.

Rhizobium sp. strain T2.30D-1.1 was isolated from the deep subsurface of Iberian Pyrite Belt.

Abstract The concentrations of total arsenic and species in the complete organism crayfish Procambarus clarkii its various parts (hepatopancreas, tail, remaining parts) were analyzed order to discover distribution species. With this information it will be possible establish where chemical forms metalloid tend accumulate what risks may derive from contents present edible crustacean. content ranged 2.5 12 µg g −1 dry mass (DM), with inorganic representing 18 34% arsenic. arsenical composition...

We report the draft genome of Pseudomonas sp. strain T2.31D-1, which was isolated from a drilling core sample obtained 414 m below surface in Iberian Pyrite Belt. The consists 4.7-Mb chromosome, with 4,428 coding sequences, one rRNA operon, and 59 tRNA genes, 31.8-kb plasmid.

This report describes acidic microbial mats containing cyanobacteria that are strongly associated to precipitated minerals in the source area of Río Tinto. Tinto (Huelva, Southwestern Spain) is an extreme environment where iron and sulfur cycles play a fundamental role sustaining extremely low pH high concentration heavy metals, while maintaining level diversity. These multi-layered mineral deposits stable all year round characterized by succession thick greenish-blue brownish layers mainly...

The draft genome of Brevundimonas sp. strain T2.26MG-97, isolated at a depth 492.6 m in the subsurface Iberian Pyrite Belt, is reported here. It consists 262 scaffolds with total length 3.68 Mbp, where 3,549 coding DNA sequences have been annotated.

Shewanella sp. strain T2.3D-1.1 was isolated from the deep subsurface of Iberian Pyrite Belt. We report its draft genome sequence, consisting 49 scaffolds, with a chromosome ≈4.6 Mb and 23.8-kb plasmid. The annotation identified 4,068 coding DNA sequences, 1 rRNA operon, 108 tRNA genes.

Vitamin B12 is an enzymatic cofactor that essential for both eukaryotes and prokaryotes. The development of life in extreme environments depends on cofactors such as vitamin well. genomes twelve microorganisms isolated from the deep subsurface Iberian Pyrite Belt have been analyzed search activities require or are involved its synthesis import. Results revealed needed by these several enzymes ribonucleotide reductase, methionine synthase epoxyqueosine reductase. Isolate Desulfosporosinus sp....