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Extracting DNA of nematodes communities from Argentine Pampas agricultural soils Anais da ABC (AABC)
Mondino,Eduardo A.; Covacevich,Fernanda; Studdert,Guillermo A.; Pimentel,João P.; Berbara,Ricardo L.L..
We examined four strategies (Tris/EDTA, sodium dodecyl sulfate, Chelex 100 resin and cetyltrimethylammonium bromide -CTAB-) for extracting nucleic acid (DNA) from communities of nematodes. Nematodes were isolated from an agricultural area under different management of long-term crop rotation experiment from Argentina during three seasons. After DNA extraction, Polymerase Chain Reaction-amplifications were performed and considered as indicators of successful DNA extraction. The CTAB combined with proteinase K and phenol-chloroform-isoamyl alcohol was the unique successful method because positive amplifications were obtained by using both eukaryotic and nematode specific primers. This work could contribute to biodiversity studies of nematodes on...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agroecosystems; Nematodes; Nucleic acid extraction; CTAB.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200691
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Methodological variations in the isolation of genomic DNA from Streptococcus bacteria BABT
Moreira,Mônica; Noschang,Juliana; Neiva,Ivana Froede; Carvalho,Yanê; Higuti,llma Hiroko; Vicente,Vânia Aparecida.
In this work, genomic DNA of Streptococcus pyogenes, S. mutans and S. sobrinus was isolated using two methods: either using the detergent cetyltrimethylammonium bromide (CTAB) at 65ºC; or by applying ultrasound to a mixture of silica and celite in CTAB. The composite method that used ultrasound was the more efficient, allowing the straightforward extraction of genomic DNA from Gram-positive bacteria with good quality and reproducibility.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Streptococcus; DNA isolation; CTAB; Ultrasound.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400013
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Assessment of the quality of dna extracted by two techniques from Mycobacterium tuberculosis for fast molecular identification and genotyping BJM
Miyata,Marcelo; Santos,Adolfo Carlos Barreto; Mendes,Natália Helena; Cunha,Eunice Atsuko; Melo,Fernando Augusto Fiúza de; Leite,Clarice Queico Fujimura.
We report a comparative study of two DNA extraction techniques, thermolysis and chemical lysis (CTAB), for molecular identification and genotyping of M. tuberculosis. Forty DNA samples were subjected to PCR and the results demonstrated that with thermolysis it is possible to obtain useful data that enables fast identification and genotyping.
Tipo: Info:eu-repo/semantics/article Palavras-chave: DNA extraction; Mycobacterium tuberculosis; Thermolysis; CTAB.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000200045
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