نتایج جستجو برای: cadmium accumulation

تعداد نتایج: 171074  

Journal: :محیط زیست طبیعی 0
معصومه آریایی کارشناس ارشد محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه تهران، ایران امیرحسین حمیدیان استادیار گروه محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه تهران، ایران سهیل ایگدری استادیار گروه شیلات، دانشکدۀ منابع طبیعی، دانشگاه تهران، ایران سهراب اشرفی استادیار گروه محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه تهران، ایران

abstractthe purpose of this study was to compare the heavy metal uptake of cd in liver tissue of endemic fish aphanius sophiae in the saltwater eshtehard of karaj and fresh water in laboratory conditions, the relationship between cadmium accumulation in the liver, the effect of salinity and different concentrations of cd uptake. sampling did randomly from salt river in the spring and summer 201...

2013
Tessa M. Henson Wendy Cory Matthew T. Rutter

Plant populations may vary substantially in their tolerance for and accumulation of heavy metals, and assessment of this variability is important when selecting species to use in restoration or phytoremediation projects. We examined the population variation in cadmium tolerance and accumulation in a leguminous pioneer species native to the eastern United States, the partridge pea (Chamaecrista ...

2010
Bita Rahimi Parisa Nejatkhah Manavi

The effect of salinity on cadmium uptake and elimination by brine shrimp Artemia urmiana which lives only in Urumieh Lake, Iran, was studied for the first time. Brine Shrimp were acclimated to different salinities and exposed to the metal in solution at differing salinities and composition. Experimental salinities ranged from 50 to 125 gL and the concentrations for cadmium added to the solution...

Journal: :Antimicrobial agents and chemotherapy 1978
A A Weiss S Silver T G Kinscherf

Plasmid-determined resistance to cadmium has only been found with plasmids from Staphylococcus aureus. Resistance to cadmium was associated with a lower accumulation of Cd(2+) ions by the plasmid-bearing resistant cells. Cadmium accumulation by susceptible cells was energy dependent and had those characteristics usually associated with a transmembrane active transport system. There was a specif...

Journal: :iranian j. of fisheries science 2016
o.g inan h akgul m dogan h zeren

in the present study, cadmium (cd) accumulation capabilities of aquatic macrophytes ceratophyllum demersum, bacopa monnieri and rotala rotundifolia were determined after treating both individual and triple macrophytes. the macrophytes were treated with cd at 0, 0.1, 1 and 10 mg/l concentrations in a controlled chamber for 12-days. cadmium accumulations increased with increasing cd concentration...

Journal: :Canadian Journal of Plant Science 1998

Journal: :Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene) 1973

Journal: :Journal of environmental biology 2010
N M Rolli S S Suvarnakhandi G S Mulgund R H Ratageri T C Taranath

The present study focused on biochemical responses of Spirodela polyrhiza to cadmium stresses and its accumulation. The laboratory experiments were conducted for the assessment of biochemical responses and accumulation of cadmium in plants at its various concentrations (0.1, 0.5, 1.5 and 2.0 ppm) at the regular interval for twelve days exposure. Spirodela showed visible symptoms like withering ...

2016
Mi Young Kim Woo-Jeong Shon Mi-Na Park Yeon-Sook Lee Dong-Mi Shin

BACKGROUND/OBJECTIVES Cadmium is a toxic metal that is an occupational and environmental concern especially because of its human carcinogenicity; it induces serious adverse effects in various organs and tissues. Even low levels of exposure to cadmium could be harmful owing to its extremely long half-life in the body. Cadmium intoxication may be prevented by the consumption of dietary components...

Journal: :The British journal of ophthalmology 1998
O Cekic

AIM To identify cigarette smoking as a risk factor for development of cataract, to determine the importance of copper, lead, and cadmium in cataractogenesis, and to learn about any relation between those elements. METHODS Copper, lead, and cadmium concentrations were measured by atomic absorption spectrophotometry in 37 cataractous and nine normal human lenses. RESULTS All three element acc...

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