Fermentation characteristics of Fusarium oxysporum grown on acetate
Artikel i vetenskaplig tidskrift, 2008

In this study, the growth characteristics of Fusarium oxysporum were evaluated in minimal medium using acetate or different mixtures of acetate and glucose as carbon source. The minimum inhibitory concentration (MIC) of acetic acid that F. oxysporum cells could tolerate was 0.8% w/v while glucose was consumed preferentially to acetate. The activity of isocitrate lyase was high when cells were grown on acetate and acetate plus glucose indicating an activation of the glyoxylate cycle. Investigation of the metabolic fingerprinting and footprinting revealed higher levels of intracellular and extracellular TCA cycle intermediates when F. oxysporum cells were grown on mixtures of acetate and glucose compared to growth on only glycose. Our data support the hypothesis that a higher flux through TCA cycle during acetate consumption could significantly increase the pool of NADH, resulting in the activation of succinate-propionate pathway which consumes reducing power (NADH) via conversion of succinate to propionyl-CoA and produce propionate.

Acetate metabolism

Fusarium oxysporum

Acetate-glucose co-metabolism

Intracellular metabolites

Extracellular metabolites

Författare

Gianni Panagiotou

Fotini Pachidou

Dimitris Petroutsos

Paul Christakopoulos

Bioresource Technology

0960-8524 (ISSN)

99 7397-7401

Ämneskategorier

Industriell bioteknik

Mer information

Skapat

2017-10-10