نتایج جستجو برای: metalloid stress

تعداد نتایج: 439118  

2017
Xinjin Liang Geoffrey Michael Gadd

Bioleaching is a proven bioprocess for metal recovery by solution from solid matrices, while a bioprecipitation or biomineralization approach is of potential for biorecovery from solution. Fungi can directly and indirectly mediate the formation of many kinds of minerals, including oxides, phosphates, carbonates and oxalates, as well as elemental forms of metals and metalloids such as Ag, Se and...

Journal: :Journal of the Japan Institute of Metals and Materials 1981

Journal: :Crop & Pasture Science 2022

This is the third and last part of special issue on Mineral Biofortification Metal/Metalloid Accumulation in Food Crops. A brief description research articles included this provided.

2009
Sara E. Beese Takahiro Negishi David E. Levin

The yeast Fps1 protein is an aquaglyceroporin that functions as the major facilitator of glycerol transport in response to changes in extracellular osmolarity. Although the High Osmolarity Glycerol pathway is thought to have a function in at least basal control of Fps1 activity, its mode of regulation is not understood. We describe the identification of a pair of positive regulators of the Fps1...

Journal: :Tumori 2012
Marco Vinceti Catherine M Crespi Carlotta Malagoli Ilaria Bottecchi Angela Ferrari Sabina Sieri Vittorio Krogh Dorothea Alber Margherita Bergomi Stefania Seidenari Giovanni Pellacani

AIMS AND BACKGROUND A direct association between exposure to the metalloid selenium and risk of cutaneous melanoma has been suggested by some observational and experimental cohort studies, whereas other studies have yielded inconsistent results. Since some of the inconsistencies may be due to exposure misclassification arising from the use of exposure indicators that do not adequately reflect b...

Journal: :Applied and environmental microbiology 2011
Markus Lenz Boris Kolvenbach Benjamin Gygax Suzette Moes Philippe F X Corvini

Selenium-reducing microorganisms produce elemental selenium nanoparticles with particular physicochemical properties due to an associated organic fraction. This study identified high-affinity proteins associated with such bionanominerals and with nonbiogenic elemental selenium. Proteins with an anticipated functional role in selenium reduction, such as a metalloid reductase, were found to be as...

Journal: :The Analyst 2009
Michelle E Gange Simon C Parratt Philip Jones Paul S Francis Neil W Barnett

Unlike many other metal and metalloid ions, tin(II) elicits intense, analytically useful chemiluminescence upon reaction with tris(2,2'-bipyridyl)ruthenium(III) in acidic aqueous solution. This finding provides new insight into the nature of this widely used reagent and has enabled the first direct, selective determination of a metal ion with tris(2,2'-bipyridyl)ruthenium(III).

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