193 resultados para Cd2
Resumo:
GSH 1. ; 2. 1868bp 50655.8KD; 3. AsPCSAsPCS; 4. RT-PCRCd2AsPCSAsPCSAsPCS; 5. AsPCS
Resumo:
phytochelatinsPCs-Glu-Cys-Glu-Cysn-Glyn=2-11PCsPCSGSHCynodon dactylon cv GoldensunphytoremediationOryza sativaRNAi 1. RACERapid Amplification of cDNA EndsCdPCS11515 bp505 2. CdPCS1ABDE-1cup1CUP1FD236-6Aacr-3ARC3 3. CdPCS1CdPCS144GFP16T0PCs300mol/L Cd2+11S6K49100mol/LCdSO4PCs2.88300mol/L Cd2+9600mol/L Cd2+2Cd2;50mol/L As3+7100mol/L As3+2As3PC 4. CdPCS1GFPCdPCS1 5. .RNAi3935ZMM1OsPCS1RNAi4UbiquitinRT-PCRZMM1RNAiOsPCS1mRNA
Resumo:
RACE9-(UDMH) CdSRPCdTETH CdASPCdMT2CdTER1CdSRP;CdTETHTRAPP;CdASP;CdMT2Type ;CdTER1TERl-likeAcrAsFD236-6AAsCdMT2CdTER1CdASP RACES-CdGSTFl;CdPCSICdPCSTypeCdMT1CdGSTF1phiGSTNorthern-blottingCdGSTF1Cd2+CdPCSICdPCSPCsCdPCSICdPCSIICd2+cdMT1CdMT2MT 1.63 mmol/L3.26 mmol/L
Resumo:
TRBCTCD2CD3/TCRCD5CD6CD7CD2TRBC, ETRBCE, ETRBC, CD2TRBC1412
Resumo:
, qu(TPBL)A , 20.9%11.1%; (E)20.9%1.1% 4(McAb)(Leu 5,0-275, AICD2.1E_(2)McAb)quA E,, quA , E1222
Resumo:
Granular reactive materials have higher permeability and are therefore desirable for in situ groundwater pollution control. Three granular bentonites were prepared: an Al-pillared bentonite (PBg), an organo-bentonite (OBg) using a quaternary ammonium cation (QAC), and an inorgano-organo-bentonite (IOBg), using both the pillaring agent and the QAC. Powdered IOB (IOBp) was also prepared to test the effect of particle size. The modified bentonites were characterised with X-ray diffraction (XRD), Fourier transform infrared spectrometry (FT-IR), thermal gravimetric analysis (TGA) and uniaxial compression tests. The d-spacing increased only with QAC intercalation. The Young's modulus of IOBg was twice as high as OBg. Batch adsorption tests were performed with aqueous multimetal solutions of Pb2+, Cu2+, Cd2+, Zn2+ and Ni2+ ions, with liquid dodecane and with aqueous dodecane solutions. Metal adsorption fit the Langmuir isotherm. Adsorption occurred within 30min for PBg, while the granular organo-bentonite needed at least 12h to reach equilibrium. IOBp had the maximum adsorption capacity at higher metal concentration and lower adsorbent content (Cu2+: 2.2, Ni2+: 1.7, Zn2+: 1.4, Cd2+: 0.9 and Pb2+: 0.7 all in mmolg-1). The dual pillaring of the QAC and Al hydroxide increased the adsorption. The adsorption of liquid dodecane was in the order IOBg>OBg>PBg (3.2>2.7>1.7mmolg-1). Therefore IOBg has potential for the removal of toxic compounds found in soil, groundwater, storm water and wastewater. 2012 Elsevier B.V.
Resumo:
Hg2+Cd2+,,3d,[Hg2+][Hg2++Cd2+]([Hg2+]/[Cd2+]=1)>5μmol/L,23d;,,;[Hg2+][Hg2++Cd2+]≤2.5μmol/L[Cd2
Resumo:
863(2002AA601021); 973(2002CB412309)
Resumo:
(SCGE),Cd2+Pb2+Zn2+(1—35d)(0.05mg/L0.5mg/L5.0mg/L)(Cd2++Pb2+Cd2++Zn2+Pb2++Zn2+Cd2++Pb2++Zn2+)(0.5mg/L)DNADNA(TL)(D),DNA,,DNA
Resumo:
PODSODHg2+Cd2+.:Hg2+Cd2+;Hg2+20μmol.L-1,Cd2+80μmol.L-1,Hg2++Cd2+50μmol.L-1([Hg2+]/[Cd2+]=1/4),;,.PODSOD,6 h,40μmol.L-1Hg2+160μmol.L
Resumo:
Hg2+Cd2+a/b,.(Hg2+≤2.5μmol/L,Cd2+≤10μmol/L,Hg2++Cd2+≤1.25μmol/LHg2++5μmol/LCd2+),,;a/b,,.Hg2+Cd2+4(
Resumo:
Cd2 + Cu2 + BF5(TetrahymenathermophilaBF5) , :Cd2 + (0 0 .4mgL-1)Cu2 + (0 10mgL-1) ,Cd2 + (0 .8 3.2mgL-1)Cu2 + (2 0 2 0 0mgL-1) ;Cd2 + Cu2 + IC50 2 .0 4mg/L15 5 .5mg/L ;
Resumo:
; ;E :E , 2 5 % 34% 36 % 47% , (T )CD2
Resumo:
The metallothionein-2 (MT-2) gene was isolated from the mandarin fish, one of the most important industrial aquatic animals in China, by using rapid amplification of cDNA ends (RACE). The deduced amino acid sequence of MT-2 comprised 60 amino acids and showed approximately 62.3% identity to human metallothionein. Its promoter region was amplified by thermal asymmetric interlaced polymerase chain reaction (TAIL-PCR). The MT-2 gene consists of 3 exons and 2 introns, extending approximately 900 bp of genomic sequence. Phylogenetic analysis clearly demonstrated that MT-2 formed a clade with fish metallothionein. The promoter region contained 5 putative metal-regulatory elements (MREs) and 1 TATA box. Real-time quantitative RT-PCR analysis revealed that MT-2 transcripts were significantly increased in the brain and gills and were stable in the muscles, liver, and trunk kidney in Cd2+-stimulated fish. Western blotting analysis demonstrated that the protein of the MT-2 gene was expressed mainly in the gills, liver, heart, trunk kidney, muscle, and intestine; it was weakly detected in the brain and head kidney. Moreover, the MT-2 protein was immunohistochemically detected in the cytoplasm in the liver and trunk kidney. All the above results revealed that the mandarin fish MT-2 would be a useful biomarker for metal pollution. (C) 2008 Published by Elsevier Inc.
Resumo:
The effects of cadmium (Cd2+) on growth status, chlorophyll (Chl) content, photochemical efficiency, and photosynthetic intensity were studied on Canna indica Linn. Plant specimens that were produced from a constructed wetland and precultivated hydroponically in 20 L of 1/10 Hoagland solution under greenhouse conditions for I week were exposed to cadmium in concentrations of 0, 0.4, 0.8, 1.6 and 3.2 mg L- Cd2+, respectively. The results show that leaves were injured in the Cd2+ solution by the third day of exposure and the injury became more serious with an increase in the applied heavy metal. Under 3.2 mg L-1 Cd2+ treatment, growth retardation, the decrease of chlorophyll content from 0.70 to 0.43 mg g(-1) FW, and a decrease in Chl a/b ratio from 2.0 to 1.2 were observed. Chl a was more sensitive than Chl b to Cd2+ stress. The decrease was the same with photochemical efficiency. Photosynthetic intensity decreased by 13.3% from 1.5X10(4) mumol m(-2)s(-1) CO2 in control to 1.3x10(4) mumol m(2)s(-1) CO2 in the treatment of 3.2 mg L-1. Because Canna species are used in heavy metal phytoremediation, these results show that C. indica can tolerate 0.4 to 0.8 mg L-1 Cd2+. Therefore, it is a potential species for phytoremediation of cadmium with some limitations only at higher concentrations.
