Fusarium pallidoroseum in maize samples of three agro-ecological zones of Cameroon
A. Tagne, O. Kongsdal, Z. Ngoko, C. The and S. B. Mathur
Journal of Stored Products Research Volume 39, Issue 4 , 2003, Pages 367-374
2003
บทคัดย่อ
Fusarium pallidoroseum in maize samples of three agro-ecological zones of Cameroon
Investigations were conducted to determine the presence of mycotoxigenic fungi in maize samples from Cameroon. The deep freezing blotter method, and the medium DG-18, with and without 1% sodium hypochlorite surface sterilization pre-treatment, were used. The plated grains were incubated for 7 days under a cycle of 12 h (NUV) daylight and 12 h darkness. Fusariumpallidoroseum was found infecting 1–2% of the tested grains. Eleven samples out of 65 tested were found infected, 2 samples from the locality of Melong in the humid forest agro-ecological zone with monomodal rainfall, 1 from Foumbot and 2 from Bamenda in the highlands agro-ecological zone, and 6 from Yaounde, in the humid forest with bimodal rainfall agro-ecological zone. An infection rate of 2% of the grains was found on blotter paper while only 1% was recorded on the reduced water activity medium DG-18, with or without surface sterilization. F. pallidoroseum is reported here for the first time from maize samples of Cameroon. This underlines the need for detailed research on toxigenic fungi and the improvement of common storage practices to avoid mycotoxin contamination and the resulting human and animal health problems.