نتایج جستجو برای: metal accumulation

تعداد نتایج: 342701  

2008
Shaon Raychaudhuri Ray Chaudhuri

The present paper put forth the isolation and complete characterization of three bacterial isolates from different sites of East Calcutta Wetland (ECW). These isolates show tolerance to heavy metals like Ag, Al, Cu, Cr, Co, Ni, Pb and were found to be efficient metal accumulators as evident from Energy Dispersive X Ray Fluorescence (EDXRF) analysis and Transmission Electron Microscopy (TEM). Be...

2015
Stephanie L Begg Bart A Eijkelkamp Zhenyao Luo Rafael M Couñago Jacqueline R Morey Megan J Maher Cheryl-Lynn Y Ong Alastair G McEwan Bostjan Kobe Megan L O'Mara James C Paton Christopher A McDevitt

Cadmium is a transition metal ion that is highly toxic in biological systems. Although relatively rare in the Earth's crust, anthropogenic release of cadmium since industrialization has increased biogeochemical cycling and the abundance of the ion in the biosphere. Despite this, the molecular basis of its toxicity remains unclear. Here we combine metal-accumulation assays, high-resolution struc...

Journal: :International Journal of Environmental Pollution and Remediation 2017

2005
B. B. Maruthi Sridhar S. V. Diehl F. X. Han D. L. Monts Y. Su

Anatomical and physiological changes in Indian mustard (Brassica juncea) plants due to uptake and accumulation of Zn and Cd were investigated. Potted plants were exposed to metal treatments of Zn and Cd for 15 and 16 days, respectively. Leaves, stems and roots were harvested for studying anatomy and analyzing metal accumulation. Anatomical changes were documented using light microscopy, scannin...

2017
Ali Mekki Sami Sayadi

The effects of phosphate processing wastewater (PPWW) on heavy metal accumulation in a Mediterranean soil (Tunisia, North Africa) were investigated. Moreover, the residual toxicities of PPWW-irrigated soils extracts were assessed. Results showed that heavy metal accumulation was significantly higher in PPWW-irrigated soil extracts than in control soil. The heavy metal accumulation increased ove...

2015
Kahraman Selvi Hasan Kaya Mehmet Akbulut Alkan Öztekin Fikret Çakir

This study was conducted in September 2014 to determine the effects of metal accumulation on the Odanata larvae which is a freshwater macroinvertebrate. Polluted area in the lower part of the mine founded on Umurbey Stream (Çanakkale, Turkey) and unpolluted area in the upper part of it are defined as the sampling stations. In this study, GSH (Glutathione), TBARS levels and Na, K -ATPase activit...

Journal: :Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 2013
J R Brock G K Bielmyer

The marine environment is subjected to contamination by a complex mixture of metals from various anthropogenic sources. Measuring the biological responses of organisms to a complex mixture of metals allows for examination of metal-specific responses in an environmentally realistic exposure scenario. To address this issue, the sea anemone, Aiptasia pallida was exposed to a control and a metal mi...

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