The toxigenic potential of Fusarium poae originated from wheat

Eleven isolates of Fusarium poae, originated from wheat grain at 9 locations mainly in Vojvodina (Serbia) were encompassed by the present study. In order to determine toxicological potential of this species, cultures of the selected isolates were grown in liquid media (GPY and SPY) on a rotary shaker (180 revolutions/min), at room temperature (21-26 deg C) for three days. The obtained results show that Fusarium poae, in contrast to Fusarium graminearum, has no potential for the zearalenone biosynthesis. The presence of DAS (diacetoxyscirpenol) was determined only in one isolate of Fusarium poae (MRIZP-666), and in the control isolate of Fusarium sporotrichioides (KF-38/1/R), that were grown in the GPY liquid medium. The T-2 toxin was detected in the isolate MRIZP-666, grown in both media, and in the isolates MRIZP-37 and MRIZP-860, cultured in the GPY and SPY liquid medium, respectively. The control culture KF-38/1/R (Fusarium sporotrichioides) produced the T-2 toxin at the concentration of 4,000 microgram/L. According to the gained information, it can be concluded that the potential of Fusarium poae for the type-A trichothecene biosynthesis was low, as the concentration of DAS or T-2 toxin did not exceed 80 microgram/L or 240 microgram/L, respectively.