Consulta: creatorFacets:"Valdameri,G."
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A simple and efficient method for poly-3-hydroxybutyrate quantification in diazotrophic bacteria within 5 minutes using flow cytometry
Provedor de dados: 56
Autores: Alves,L.P.S.; Almeida,A.T.; Cruz,L.M.; Pedrosa,F.O.; de Souza,E.M.; Chubatsu,L.S.; Müller-Santos,M.; Valdameri,G.
The conventional method for quantification of polyhydroxyalkanoates based on whole-cell methanolysis and gas chromatography (GC) is laborious and time-consuming. In this work, a method based on flow cytometry of Nile red stained bacterial cells was established to quantify poly-3-hydroxybutyrate (PHB) production by the diazotrophic and plant-associated bacteria, Herbaspirillum seropedicae and Azospirillum brasilense. The method consists of three steps: i) cell permeabilization, ii) Nile red staining, and iii) analysis by flow cytometry. The method was optimized step-by-step and can be carried out in less than 5 min. The final results indicated a high correlation coefficient (R2=0.99) compared to a standard method based on methanolysis and GC. This method...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flow cytometry; Nile red; Poly-3-hydroxybutyrate; Herbaspirillum seropedicae; Azospirillum brasilense.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000100606