نتایج جستجو برای: hypersaline

تعداد نتایج: 1366  

Journal: :Minerals 2021

Hypersaline environments are among the most vulnerable coastal ecosystems and extremely noteworthy for a variety of ecological reasons. Comprehensive assessment metal(oid) contamination in hypersaline sediments from Sečovlje (Northern Adriatic, Slovenia) was addressed by introducing detrital diagenetic mineralogy geochemical properties within solid sediment material. Close associations between ...

2018
Kaihui Liu Xiaowei Ding Xiaofei Tang Jianjun Wang Wenjun Li Qingyun Yan Zhenghua Liu

Understanding the effects of environmental factors on microbial communities is critical for microbial ecology, but it remains challenging. In this study, we examined the diversity (alpha diversity) and community compositions (beta diversity) of prokaryotes and fungi in hypersaline sediments and salinized soils from northern China. Environmental variables were highly correlated, but they differe...

2018
Dina M. Al-Mailem Mohamed Eliyas Samir S. Radwan

The aim of this study was to explore the heavy-metal resistance and hydrocarbonoclastic potential of microorganisms in a hypersaline soil. For this, hydrocarbonoclastic microorganisms were counted on a mineral medium with oil vapor as a sole carbon source in the presence of increasing concentrations of ZnSO4, HgCl2, CdSO4, PbNO3, CuSO4, and Na2HAsO4. The colony-forming units counted decreased i...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2003
Tamar Kis-Papo Valery Kirzhner Solomon P Wasser Eviatar Nevo

We have found that genomic diversity is generally positively correlated with abiotic and biotic stress levels (1-3). However, beyond a high-threshold level of stress, the diversity declines to a few adapted genotypes. The Dead Sea is the harshest planetary hypersaline environment (340 g.liter-1 total dissolved salts, approximately 10 times sea water). Hence, the Dead Sea is an excellent natural...

2017
Clara Pañella Quim Castellví Xavier Moll Rita Quesada Alberto Villanueva Mar Iglesias Dolores Naranjo Patricia Sánchez-Velázquez Anna Andaluz Luís Grande Antoni Ivorra Fernando Burdío

Background Spread hepatic tumours are not suitable for treatment either by surgery or conventional ablation methods. The aim of this study was to evaluate feasibility and safety of selectively increasing the healthy hepatic conductivity by the hypersaline infusion (HI) through the portal vein. We hypothesize this will allow simultaneous safe treatment of all nodules by irreversible electroporat...

2017
Daniel L. Jones Bonnie K. Baxter

Halophilic archaea push the limits of life at several extremes. In particular, they are noted for their biochemical strategies in dealing with osmotic stress, low water activity and cycles of desiccation in their hypersaline environments. Another feature common to their habitats is intense ultraviolet (UV) radiation, which is a challenge that microorganisms must overcome. The consequences of hi...

2015
Salvador Mirete Merit R. Mora-Ruiz María Lamprecht-Grandío Carolina G. de Figueras Ramon Rosselló-Móra José E. González-Pastor

Hypersaline environments are considered one of the most extreme habitats on earth and microorganisms have developed diverse molecular mechanisms of adaptation to withstand these conditions. The present study was aimed at identifying novel genes from the microbial communities of a moderate-salinity rhizosphere and brine from the Es Trenc saltern (Mallorca, Spain), which could confer increased sa...

Journal: :Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 1997
C U Meteyer R R Dubielzig F J Dein L A Baeten M K Moore J R Jehl K Wesenberg

Cause of mortality was studied in waterfowl in hypersaline playa lakes of southeast New Mexico during spring and fall migration. Mortality was not common in wild ducks resting on the playas during good weather. However, when birds remained on the lakes for prolonged periods of time, such as during experimental trials and stormy weather, a heavy layer of salt precipitated on their feathers. Sodi...

Journal: :The Biological bulletin 2003
John R Spear Ruth E Ley Alicia B Berger Norman R Pace

The goal of this project is to describe and understand the organismal composition, structure, and physiology of microbial ecosystems from hypersaline environments. One collection of such ecosystems occurs at North America's largest saltworks, the Exportadora de Sal, in Guerrero Negro, Baja California Sur. There, seawater flows through a series of evaporative basins with an increase in salinity ...

Journal: :Water 2021

Hypersaline ecosystems—aquatic environments where concentration of salt exceeds 35 g L−1—host microbial communities that are highly specialised to cope with these extreme conditions. However, our knowledge on the taxonomic diversity and functional metabolisms characterising in water columns hypersaline ecosystems is still limited, this may compromise future preservation unique environments. DNA...

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