نتایج جستجو برای: hypersalinity

تعداد نتایج: 73  

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2011
Janet Genz M Danielle McDonald Martin Grosell

Marine teleosts constantly lose water to their surrounding environment, a problem exacerbated in fish exposed to salinity higher than normal seawater. Some fish undergo hypersaline exposures in their natural environments, such as short- and long-term increases in salinity occurring in small tidal pools and other isolated basins, lakes, or entire estuaries. Regardless of the degree of hypersalin...

Journal: :Ambio 2003
Hans W Paerl Timothy F Steppe Kenneth C Buchan Malcolm Potts

The Atlantic hurricanes of 1999 caused widespread environmental damage throughout the Caribbean and US mid-Atlantic coastal regions. However, these storms also proved beneficial to certain microbial habitats; specifically, cyanobacteria-dominated mats. Modern mats represent the oldest known biological communities on earth, stromatolites. Contemporary mats are dominant biological communities in ...

2014
Zhengjun Li Eei Yin Lui Jonathan M. Wilson Yuen Kwong Ip Qingsong Lin Toong Jin Lam Siew Hong Lam

The ability of euryhaline Mozambique tilapia to tolerate extreme environmental salinities makes it an excellent model for investigating iono-regulation. This study aimed to characterize and fill important information gap of the expression levels of key ion transporters for Na(+) and Cl(-) in the gill and esophageal-gastrointestinal tract of Mozambique tilapia acclimated to freshwater (0 ppt), s...

Journal: :Research in microbiology 2010
Beate Averhoff Volker Müller

Extremophilic prokaryotes inhabit ecosystems that are, from a human perspective, extreme, and life in these environments requires far-reaching cellular adaptations. Here, we will describe, for two examples (Thermus thermophilus, Halobacillus halophilus), how thermophilic or halophilic bacteria adapt to their environment; we will describe the molecular basis of sensing and responding to hypersal...

Journal: :Estuarine Coastal and Shelf Science 2021

Macroclimatic changes are expected to radically alter coastal wetland ecosystems in the coming century. The trajectory of response climate warming may differ based on other concomitantly changing abiotic variables such as soil salinity and relative humidity. Thus, understanding plant responses multiple interacting stressors is required accurately predict shifts under change. ongoing poleward sh...

Journal: :Toxicology and applied pharmacology 2009
Ramon Lavado John M Rimoldi Daniel Schlenk

Previous studies in rainbow trout have shown that acclimation to hypersaline environments enhances the toxicity to thioether organophosphate and carbamate pesticides. In order to determine the role of biotransformation in this process, the metabolism of the thioether organophosphate biocide, fenthion was evaluated in microsomes from gills, liver and olfactory tissues in rainbow trout (Oncorhync...

2010
Janet Genz M. Danielle McDonald Martin Grosell

acute hypersalinity stress limits osmoregulation in response to Opsanus beta in the intestinal lumen of 4 Concentration of MgSO You might find this additional info useful... ranging from molecules to humans, including clinical investigations. It is published 12 times a year (monthly) by the American illuminate normal or abnormal regulation and integration of physiological mechanisms at all leve...

Journal: :Molecular Systems Biology 2008
Victor Kunin Jeroen Raes J Kirk Harris John R Spear Jeffrey J Walker Natalia Ivanova Christian von Mering Brad M Bebout Norman R Pace Peer Bork Philip Hugenholtz

To investigate the extent of genetic stratification in structured microbial communities, we compared the metagenomes of 10 successive layers of a phylogenetically complex hypersaline mat from Guerrero Negro, Mexico. We found pronounced millimeter-scale genetic gradients that were consistent with the physicochemical profile of the mat. Despite these gradients, all layers displayed near-identical...

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