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159篇 您的检索式:作者名="Megharaj"
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1Environmental application and ecological significance of nano-zero valent iron显示文摘Toxicity studies considering both the bare and stabilized forms of zero valent iron nanoparticles(nZVI) could be timely, given that ecological risks identified are minimized through modification or with substitution of approaches in the synthesis, development and environmental application of the nanoparticles before succeeding to volume production.This review is focused on the fate, transport and toxicological implications of the bare nZVI and surface modified particles used for environmental applications.Biruck D.Yirsaw Mallavarapu Megharaj Zuliang Chen Ravi Naidu 2016Journal of Environmental Sciences2016,28,6:13
2Mercury remediation potential of a mercury resistant strain Sphingopyxis sp.SE2 isolated from contaminated soil显示文摘A mercury resistant bacterial strain SE2 was isolated from contaminated soil.The 16 s rRNA gene sequencing confirms the strain as Sphingopyxis belongs to the Sphingomonadaceae family of the α-Proteobacteria group.The isolate showed high resistance to mercury with estimated concentrations of Hg that caused 50%reduction in growth(EC_(50)) of 5.97 and 6.22 mg/L and minimum inhibitory concentrations(MICs) of 32.19 and 34.95 mg/L in minimal and rich media,respectively.The qualitative detection of volatilized mercury and the presence of mercuric reductase enzyme proved that the strain SE2 can potentially remediate mercury.ICP-QQQ-MS analysis of the remaining mercury in experimental broths indicated that a maximum of 44%mercury was volatilized within 6 hr by live SE2 culture.Furthermore a small quantity(23%) of mercury was accumulated in live cell pellets.While no volatilization was caused by dead cells,sorption of mercury was confirmed.The mercuric reductase gene merA was amplified and sequenced.Homology was observed among the amino acid sequences of mercuric reductase enzyme of different organisms from a-Proteobacteria and ascomycota groups,Khandaker Rayhan Mahbub Kannan Krishnan Ravi Naidu Mallavarapu Megharaj 2017Journal of Environmental Sciences2017,29,1:10
3Isolation of phosphate solubilizing bacteria and their potential for lead immobilization in soil显示文摘Jin Hee Park Nanthi Bolan Mallavarapu Megharaj Ravi Naidu 2010Journal of Hazardous Materials2010,,2:2
4Toxicity of Hexavalent Chromium and Its Reduction by Bacteria Isolated from Soil Contaminated with Tannery Waste显示文摘M. Megharaj S. Avudainayagam R. Naidu 2003Current Microbiology2003,,1:2
5Sorption of quaternary ammonium compounds in soils: Implications to the soil microbial activities显示文摘Binoy Sarkar Mallavarapu Megharaj Yunfei Xi G.S.R. Krishnamurti Ravi Naidu 2010Journal of Hazardous Materials2010,,1:2
6Microbial activity and diversity in long-term mixed contaminated soils with respect to polyaromatic hydrocarbons and heavy metals显示文摘Palanisami Thavamani Seidu Malik Michael Beer Mallavarapu Megharaj Ravi Naidu 2012Journal of Environmental Management2012,,:2
7Bioavailability and toxicity of cadmium to microorganisms and their activities in soil: a review显示文摘K Vig M Megharaj N Sethunathan R Naidu 1 2002Advances in Environmental Research2002,,1:2
8Synthesis of iron-based nanoparticles by green tea extract and their degradation of malachite显示文摘Xiulan Weng Lanlan Huang Zuliang Chen Mallavarapu Megharaj Ravendra Naidu 2013Industrial Crops & Products2013,,:2
9Bioavail- ability and toxicity of cadmium to microorganisms and their ac- tivities in soil: a review显示文摘VIG K MEGHARAJ M SETHUNATHAN N 2003Advances in Environmental Re- search2003,8,1:1
10Bioavailability an toxicity of cadmium to microorganisms and their activities in soil显示文摘Vig K Megharaj M Sethunathan N 2003Advances in Environmental Research2003,8,:1
11Influence of petroleum hydrocarbon contamination on microalgae and microbial activities in a long-term contaminated soil 显示文摘Megharaj M Singleton I McClure N C 2000Arch Environ Con Tox2000,38,:1
12Concomitant rock phosphate dissolution and lead immobilization by phosphate solubilizing bacteria ( Enterobacter sp.)显示文摘Jin Hee Park Nanthi Bolan Mallavarapu Megharaj Ravi Naidu 2010Journal of Environmental Management2010,,4:1
13Finger printing of mixed contaminants from former manufactured gasplant(MGP)site soil:implication to bioremediation显示文摘THAVAMANI P MEGHARAJ M KRISHNAMURTI GSR 2011EnvironmentInternational2011,37,1:1
14Isolation of phosphate solubilizing bacteria and their potential for lead immobilization in soil显示文摘Jin Hee Park Nanthi Bolan Mallavarapu Megharaj Ravi Naidu 2010Journal of Hazardous Materials2010,,2:1
15Effects of DDT and its metaloolites on soil algae and enzymatic aetiw ity显示文摘Megharaj M Boul H L Thiele J H 1999Biology and Fertility of Soils1999,29,2:1
16Relative value of phosphate compounds in reducing the bioavailability and toxicity of lead in contaminated soils显示文摘Park J.H Bolan N Megharaj M 0,,2:1
17Synthesis and characterisation of novel organopalygorskites for removal of p-nitrophenol from aqueous solution:Isothermal studies显示文摘Sarkar B Xi Y Megharaj M 2010Journal of Colloid and Interface Science2010,350,1:1
18, Evidence that Formation of Protoanemonin from Metabolites of 4-Chlorobiphenyl Degradation Negatively Affects the Survivalof 4-Chlorobiphenyl-Cometabolizing Microorganisms显示文摘Efael Blasco Megharaj Mallavarapu Rolf-Michael Wittich 1997Applied and Environmental Microbiology1997,63,2:1
19Toxicity of hexavalent chromium and its reduction by bacteria isolated from soil contaminated with tannery waste 显示文摘Megharaj M Avudainayagarn S Naidu R 2003Current Microbiology2003,47,1:1
20Changes in microbial properties associated with long-term arsenic and DDT contaminated soils at disused cattle dip sites显示文摘Edvantoro B B Naidu R Megharaj M 2003Ecotoxicology and Environmental Safety2003,55,3:1
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