Kinetics of fumonisin B₁formation in maize ears inoculated withFusarium verticillioides

Abstract

The kinetics of fumonisin B₁ (FB₁) biosynthesis have been examined in ears of four botanical varieties Zea mays var. indentata, Zea mays var. indurata, Zea mays var. saccharata and Zea mays var. everta inoculated with F. verticillioides isolates at silking stage. The level of mycotoxin accumulated in kernels was correlated with sample harvest time (r = 0.73) and ergosterol content (r = 0.70). FB₁ biosynthesis was influenced by amylose, starch and moisture contents, which undergo dynamic changes during grain formation. A comparative analysis of ear infection rates and efficiency of FB₁ biosynthesis showed that these are separate characters and their expression could be independent.

Fusariotoxins in asparagus – their biosynthesis and migration

“…ERG is a specific component of the fungal cell membrane, and it is either absent or a negligible constituent of higher plants and insects (Parsi & Gorecki 2006). A good positive correlation has been established between ERG content and fungal growth (Janardhana et al 1999;Bankole et al 2010;Waśkiewicz, Wit, et al 2012).…”

“…After 3 min, the reaction mixture (10 μL) was injected onto an HPLC column. The detailed procedure for the determination of FB 1 was presented in previous research (Waśkiewicz, Wit, et al 2012).…”

Fumonisins and related Fusarium species in pre-harvest maize ear rot in Poland

“…The procedure of extraction and purification of FBs was reported in detail previously (Waśkiewicz et al 2012). Purified FBs were quantitatively determined by the HPLC/FLD method.…”

The effect of fertiliser treatments on the severity of Fusarium head blight and mycotoxin biosynthesis in winter rye

“…These fungi are transmitted through soil and crop residues, compromising plant health as the infection spreads (5). Their pathogens attack plants from the early stages of development (BBCH 30) to maturity (BBCH 77 (3,(7)(8)(9)(10). Fusarium culmorum and F. avenaceum are the most common in Europe, including Poland (2-3, 11).…”

“…in cereal grains are zearalenone (ZEA), type B trichothecenes [deoxynivalenol (DON) and nivalenol (NIV)], and fumonisins (FBs) (30)(31). Fusarium graminearum and F. culmorum are important producers of DON and NIV (2-3, 9, 32), whereas F. verticillioides and F. proliferatum are responsible for the biosynthesis of fumonisins (10,31,(33)(34). These compounds exhibit a broad spectrum of toxic effects, including the nephrotoxic, hepatotoxic, teratogenic, carcinogenic, and hyperoestrogenic effects (2,29,(35)(36)(37).…”