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Development of a transformation system for Penicillium brevicompactum based on the Fusarium oxysporum nitrate reductase gene BJM
Varavallo,Maurílio Antônio; Queiroz,Marisa Vieira de; Pereira,Jorge Fernando; Ribeiro,Ronney Adriano; Soares,Marcos Antônio; Ribeiro,João Batista; Araújo,Elza Fernandes de.
Penicillium brevicompactum is a filamentous fungus that presents a potential for industrial use due its efficient pectinase production. A heterologous transformation system was developed for P. brevicompactum based on the complementation of a nitrate reductase mutant. Nitrate reductase mutants were obtained by resistance to chlorate in a rate of 23.24% when compared to other mutations that lead to the chlorate resistance. One mutant named 4457-18X was chosen for the transformation experiments with the pNH24 vector containing de Fusarium oxysporum nitrate reductase gene. A frequency of approximately 3 transformants/µg DNA was obtained using the circular vector pNH24. This frequency was multiplied about 10 fold using the linearized vector with the Xba I...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nitrate reductase; Penicillium brevicompactum; Heterologous transformation.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822005000200015
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