Yeast Polysaccharide Affects Fusaric Acid Content in Maize Root Rot

Abstract

Protective action of sulfoethyl glucan (SEG), a derivative of the cell wall glucan prepared from the baker's yeast Saccharomyces cerevisiae, was investigated in the maize seedlings infected by a plant pathogen Fusarium verticillioides (Sacc.). Several markers were assayed with the SEG addition and in the control experiments. Two evaluations were performed on the 7th and the 14th days. Addition of SEG led to the increased productivity parameters of the infected plants and maintained them at the level of non-infected plants during the 14 days of experiment. After seven days of cultivation, concentration of fusaric acid (=5-butylpyridine-2-carboxylic acid; FA) decreased in all infected plants cultivated in the presence of SEG when compared to that detected in the infected plants grown in the absence of SEG. After 14 days of cultivation, polysaccharide addition resulted in the reduction of FA concentration almost to 75% in comparison to the infected plants grown without polysaccharide addition. In the experiment, when exogenous FA was added to the growth medium, its concentration decreased up to 60% in the presence of SEG. Thus, it is feasible to assume that SEG binds and adsorbs FA, and, in this way, reduces its content and exerts protective action in plants against its toxic effect.

Role of yeast cell wall polysaccharides in pig nutrition and health protection

“…Besides stimulating mucosal immunity at oral application and preventing oxidative stress due to their antioxidant and radical scavenging activity, yeast β-Dglucan was also shown to adsorb various mycotoxins (Šrobárová et al, 2005;Yiannikouris et al, 2004a,b) and therefore its admixture to the animal feed may lead to suppression of the toxic effect of these substances. Another yeast cell wall polysaccharide, α-D-mannan, suppressed toxic activity of mycotoxins probably by interacting with their toxic radical metabolites (Madrigal-Bujaidar, 2002).…”

Yeast-Derived Products: The Role of Hydrolyzed Yeast and Yeast Culture in Poultry Nutrition—A Review

“…Goblet cells are cellular structures that keep the mucous barrier layers intact so that enteric infections can be removed effectively [ 36 ]. Moreover, one of the most important characteristics of yeast β- d -glucans is their ability to adsorb several mycotoxins [ 37 , 38 , 39 ], and, thus, their inclusion in animal feed may lead to the suppression of these compounds’ hazardous effects. Among the numerous beneficial effects associated with β-glucan administration, the most significant results have been found with β-glucan obtained from the yeast Saccharomyces cerevisiae [ 40 ].…”

Insight into Yeast–Mycotoxin Relations

“…The cell wall preparations originated from Saccharomyces cerevisae or Candida utilis bound the ochratoxins (OTs) or deoxynivalenol (DON) [72,115]. Additionally, sulfoethylglucan, a derivative of the cell wall glucan prepared from S. cerevisiae, resulted in the reduction in the level of fusaric acid [116], another fungal toxic compound. Binding of these compounds is mostly linked to the high adsorption capacity of the cell wall material [115,[117][118][119].…”