INDIGENOUS OENOCOCCUS OENI STRAINS SELECTED FROM TYPICAL APULIA WINE BY GENETIC MARKERS

Abstract

Oenococcus oeni is the most important LAB species involved in MLF. Highgenotypic heterogeneity of O. oeni strains and a further divergence within thebacterial strain population has been demonstrated. Genotypic diversityseems to be correlated with different metabolic characteristics of bacteria andthis may affect the organoleptic properties of obtained wines. The aim ofthis work was to detect several genes involved in important metabolic pathways(i.e. citrate, sulphur and arginine metabolisms) in 10 indigenous O. oeni strainsselected from Negroamaro wine, a red table wine (Apulia, Italy).This work revealed several new genetic markers that made possible to use a PCRdetection approach to investigate strain heterogeneity for a large range ofgenes encoding enzymes of oenological relevance.


Tutti gli autori

  • Cappello; M.S.; Mita; G.; Logrieco; A.; Zapparoli; G.

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Anno di pubblicazione

2015

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