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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 6
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Biodegradation of cypermethrin by immobilized cells of Micrococcus sp. strain CPN 1 BJM
Tallur,Preeti N.; Mulla,Sikandar I.; Megadi,Veena B.; Talwar,Manjunatha P.; Ninnekar,Harichandra Z..
Pyrethroid pesticide cypermethrin is a environmental pollutant because of its widespread use, toxicity and persistence. Biodegradation of such chemicals by microorganisms may provide an cost-effective method for their detoxification. We have investigated the degradation of cypermethrin by immobilized cells of Micrococcus sp. strain CPN 1 in various matrices such as, polyurethane foam (PUF), polyacrylamide, sodium alginate and agar. The optimum temperature and pH for the degradation of cypermethrin by immobilized cells of Micrococcus sp. were found to be 30 °C and 7.0, respectively. The rate of degradation of 10 and 20 mM of cypermethrin by freely suspended cells were compared with that of immobilized cells in batches and semi-continuous with shaken...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Degradation; Immobilization; Cypermethrin; Polyurethane foam; Micrococcus sp. strain CPN 1.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300667
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CAS role in the brain apoptosis of Bufo arenarum induced by Cypermethrin Biocell
Izaguirre,M. F.; Vergara,M. N.; Casco,V. H..
CAS might have a key role in the apoptosis induced by toxins, acting as anti-apoptotic factor, stimulating the cellular proliferation and the cell contact stabilization. To start to elucidate their role in the brain apoptosis of Bufo arenarum induced by cypermethrin (CY), the expression patterns of CAS and several cell adhesion molecules (CAMs) were established. Bufo arenarum tadpoles of the control and acute bioassay survival at different doses (39, 156, 625 and 2,500 µg CY/L) and times (24, 48, 72 and 96 h) of CY treatment were fixed in Carnoy, embedded in paraffin and sectioned. CAS and CAMs expression was determined by immunofluorescence and immunohistochemistry, respectively. When the bioassay starts, CAS increases suggesting a proliferative or...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apoptosis; Brain; Cypermethrin; CAS; Cams.
Ano: 2006 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452006000200007
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Efficacy of cypermethrin on the control of Struthiolipeurus spp. (Phthiraptera: Philopteridae) in ostrich Arq. Bras. Med. Vet. Zootec.
Verocai,G.G.; Lopes,L.N.; Burlini,L.; Cruz-Vieira,V.P.; Melo,R.M.P.S.; Coumendouros,K..
Duzentos e quarenta avestruzes, com idades entre 12 e 24 meses, foram examinados quanto ao parasitismo por Struthiolipeurus spp. Destes, 168 apresentavam-se infestados por piolhos (70%). Todas as aves foram tratadas com solução de cipermetrina a 15%, na diluição de 1ml/l, por pulverização com auxílio de uma bomba costal. Os animais positivos foram reexaminados nos dias 7, 14 e 21 após o tratamento, e não foram mais encontrados piolhos. A cipermetrina apresentou 100% de eficácia no controle de piolhos do gênero Struthiolipeurus em avestruz.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Ostrich; Struthio camelus; Lice; Struthiolipeurus spp.; Cypermethrin.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000500036
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Efficacy of insecticides in controlling the corn borer, Ostrinia furnacalis (Guenee) and their effects on natural enemies Thai Agricultural
Watchara Choonhawong; Auranuj Kongkanjana; Boonsom Meksongsee.
2 tables
Palavras-chave: Corn; Maize; Borers; Insecticides; Ostrinia furnacalis; Natural enemies; Sweet corn; Triflumuron; Carbofuran; Kumiphor; Teflubenzuron; Chlorfluazuron; Cypermethrin; Trichogramma; Hatchability; ข้าวโพด; หนอนเจาะลำต้น; สารฆ่าแมลง; แมลงศัตรูธรรมชาติ.
Ano: 1985 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4573
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Evaluation of QuEChERS Method for Analysis of Cypermethrin Residue in Cow?s Milk. Repositório Alice
BRONDI, S. H. G.; MACEDO, A. N.; NOGUEIRA, A. R. de A..
The presence of veterinary drug residues in food, especially of pesticides used for cattle disease control, can affect public health and international trading of food products if maximum residue levels are above those stipulated by FAO and WHO. Milk is one of the most complete food for humans, because it contains nutrients required for growth and development of newborns. However, milk quality can be endangered due to the presence of contaminants, especially of cypermethrin pesticide, which is widely used in Brazil to treat lactating dairy cows, mainly against ticks, flies, lice and dermatobia. Methods for monitoring veterinary drugs, for example pesticide residues, should be rapid, have small number of analytical steps, use few reagents in small amounts,...
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: QuEChERS; Cypermethrin; Method for Analysis.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/578791
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Hepatic Cytochrome P450 as Biomarkers of Cypermethrin Toxicity in Freshwater Teleost, Channa punctatus (Bloch) BABT
Bhutia,Dawa; Rai,Benoy Kishore; Pal,Joydeb.
In this study, Channa punctatus was treated with sub-lethal concentration of cypermethrin (6.6 µg/L) for 5, 10 and 15 days and its effect on total CYP 450 and the activity of hepatic CYP450 isoforms measured. Total CYP450 content and CYP1A mediated EROD activity was significantly induced (p<0.05) in all three treated groups compared to control whereas only 15 days treated group showed significant induction in CYP2B mediated N,Ndimethylaniline demethylase activity. CYP2E1 mediated aniline hydroxylase activity showed only a marginal increase while there was inhibition of CYP3A4 mediated erythromycin demethylase activity. Liver somatic index (LSI) also showed a marginal increase in all the treated groups. Results showed differential induction of CYP1A,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cypermethrin; Cytochrome P450; Fish; Channa punctatus; Biomarker.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000100131
Registros recuperados: 6
Primeira ... 1 ... Última
 

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