Springs
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181 s. : il.
Microbial mats in hot springs form a dynamic ecosystem and support the growth of diverse communities with broad-ranging metabolic capacity. In this study, we used 16S rRNA gene amplicon sequencing to analyse microbial communities in mat samples from two hot springs in Al Aridhah, Saudi Arabia. Putative metabolic pathways of the microbial communities were identified using phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt). Filamentous anoxygenic phototrophic bacteria associated with phylum Chloroflexi were abundant (> 50 %) in both hot springs at 48 °C. Chloroflexi were mainly represented by taxa Chloroflexus followed by Roseiflexus. Cyanobacteria of genus Arthrospira constituted 3.4 % of microbial mats. Heterotrophic microorganisms were mainly represented by Proteobacteria, Actinobacteria, Bacteroidetes, and Firmicutes. Archaea were detected at a lower relative abundance (< 1 %). Metabolic pathways associated with membrane transport, carbon fixation, methane metabolism, amino acid biosynthesis, and degradation of aromatic compounds were commonly found in microbial mats of both hot springs. In addition, pathways for production of secondary metabolites and antimicrobial compounds were predicted to be present in microbial mats. In conclusion, microbial communities in the hot springs of Al Aridhah were composed of diverse bacteria, with taxa of Chloroflexus being dominant.
- MeSH
- Bacteria klasifikace MeSH
- biodiverzita * MeSH
- fylogeneze * MeSH
- horké prameny mikrobiologie MeSH
- metabolické sítě a dráhy MeSH
- RNA ribozomální 16S genetika MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Saudská Arábie MeSH
1 složený list : fotografie, mapa ; 21 cm
- Klíčová slova
- Františkovy Lázně (Česko),
- MeSH
- balneologie MeSH
- lázně MeSH
- Konspekt
- Fyzioterapie. Psychoterapie. Alternativní lékařství
- NLK Obory
- balneologie
- NLK Publikační typ
- informační publikace
- informační publikace
Monographs on atherosclerosis ; Vol. 15
[1st ed.] VII, 288 s. : obr., tab. ; 22 cm
- MeSH
- arterie MeSH
- arterioskleróza MeSH
- vnitřní lékařství MeSH
- Publikační typ
- kongresy MeSH
- sborníky MeSH
- Konspekt
- Lékařské vědy. Lékařství
- NLK Obory
- vnitřní lékařství
- kardiologie
- patologie
- angiologie
- fyziologie
Four bacterial isolates, which produced polyunsaturated fatty acids (PUFA), were isolated from water samples of radioactive springs collected from Jáchymov spa. Jáchymov (Sankt Joachimsthal) is a city in northwestern Bohemia, where Marie and Pierre Curie isolated radium in 1898 from the mineral uraninite. To date, four springs (Agricola, Behounek, C1, and Curie) have been used for spa purposes, that is for the treatment of nervous and rheumatic disorders by constantly produced radioactive gas radon (222 Rn) dissolved in the water. The radioactivity reaches 24 kBq/L. Using 16S rRNA gene sequence analysis, all four isolates were identified as members of the genus Kocuria, with two isolates designated 208 and 401 affiliated with Kocuria kristinae, while isolates 101 and 301 most likely with K. rhizophila. The content of fatty acids in polar lipids was determined by gas chromatography-mass spectrometry (GC-MS) and two PUFA, that is arachidonic and eicosapentaenoic, were identified. The position of double bonds was confirmed by GC-MS of 3-pyridylcarbinol (formerly picolinyl) esters. We assume that all four isolates of Kocuria produce PUFA to increase the stability of cell membranes, which may be impaired by the reaction of the reactive oxygen species. These can arise, for example, because of α radiation during 222 Rn decay.
Annals of thoracic surgery, ISSN 0003-4975 Supplement Vol. 61. 2
34 s. : il. ; 30 cm
- MeSH
- koronární bypass komplikace ekonomika MeSH
- náklady na zdravotní péči MeSH
- Publikační typ
- kongresy MeSH
- Konspekt
- Lékařské vědy. Lékařství
- NLK Obory
- chirurgie
- management, organizace a řízení zdravotnictví
Lung cancer, ISSN 0169-5002 Vol. 11, Supplement 1 June 1994
193 stran : ilustrace, tabulky ; 26 cm
Journal of chronic diseases, ISSN 0021-9681 vol. 40, suppl. 1, 1987
193 s. : tab. ; 28 cm
- MeSH
- výsledky a postupy - zhodnocení (zdravotní péče) MeSH
- zdraví MeSH
- Publikační typ
- kongresy MeSH
- Geografické názvy
- Spojené státy americké MeSH
- Konspekt
- Veřejné zdraví a hygiena
- NLK Obory
- veřejné zdravotnictví