Relationship between poly-β-hydroxybutyrate production and δ-endotoxin for bacillus thuringiensis var. kurstaki

A. Karin Navarro, Reynold R. Farrera, Ruth López, Fermín Pérez-Guevara

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15 Scopus citations

Abstract

A linear relationship between total solid concentration (TSC), δ-endotoxin production [Cry = 0.2795(TSC)-0.2472, R 2 = 0.8644] and poly-β-hydroxybutyrate (PHB) accumulation [PHB = 0.1327(TSC) + 0.3974, R 2 = 0.9877] in Bacillus thuringiensis var. kurstaki HD-73 was observed. A similar correlation between δ-endotoxin and PHB accumulation [Cry = 2.1573(PHB)-1.1248, R 2 = 0.9181] was found. A minimum PHB accumulation of 0.52 mg l-1 was required before the onset of δ-endotoxin production.

Original languageEnglish
Pages (from-to)641-644
Number of pages4
JournalBiotechnology Letters
Volume28
Issue number9
DOIs
StatePublished - May 2006

Keywords

  • Bacillus thuringiensis
  • Cry protein
  • Poly-β- hydroxybutyrate
  • δ-endotoxin

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