Abdel-Hafez S I, el-Kady I A, Mazen M B, el-Maghraby O M
Botany Department, Faculty of Science, Assiut University, Egypt.
Mycopathologia. 1987 Nov;100(2):103-12. doi: 10.1007/BF00467102.
120 species and 38 genera were collected from 64 samples of paddy grains on glucose- and cellulose-Czapek's agar at 28 degrees C. The total count of glycophilic and cellulose-decomposing fungi fluctuated between 216-29760; and 124-11320 colonies/g paddy grains on the two media, respectively. On glucose agar, the most common species were Aspergillus niger, A. flavus, A. sydowi, A. terreus, A. fumigatus, A. ochraceus, Penicillium chrysogenum, P. corylophilum, Fusarium oxysporum, Alternaria alternata, Cladosporium cladosporioides, Trichoderma viride and Mucor racemosus. On cellulose agar with pH 5.5 & 8.0, the most prevalent fungi were Stachybotrys chartarum, S. bisybi, Aspergillus niger, A. flavus, Fusarium oxysporum, Alternaria alternata, Drechslera sativus and Acremonium strictum. Extracts from 64 paddy samples were tested against brine shrimp larvae (Artemis salina). Of these 9 displayed varying degrees of toxicity. Trichothecene-toxins were detected in the extracts of three paddy samples only. Diacetoxyscirpenol and T-2 toxin were detected in two samples and only T-2 toxin in the other.
在28摄氏度下，从64份稻谷样本中，在葡萄糖和纤维素察氏琼脂培养基上共采集到38个属的120种真菌。嗜糖和纤维素分解真菌的总数在两种培养基上分别波动于216 - 29760个菌落/克稻谷和124 - 11320个菌落/克稻谷之间。在葡萄糖琼脂上，最常见的菌种有黑曲霉、黄曲霉、杂色曲霉、土曲霉、烟曲霉、赭曲霉、产黄青霉、嗜棒青霉、尖孢镰刀菌、链格孢、枝孢、绿色木霉和总状毛霉。在pH值为5.5和8.0的纤维素琼脂上，最常见的真菌是炭疽菌、双孢炭疽菌、黑曲霉、黄曲霉、尖孢镰刀菌、链格孢、禾谷镰刀菌和细交链孢。对64份稻谷样本的提取物进行了卤虫幼虫（卤虫）毒性测试。其中9份显示出不同程度的毒性。仅在3份稻谷样本的提取物中检测到单端孢霉烯毒素。在两份样本中检测到二醋酸藨草镰刀菌烯醇和T - 2毒素，在另一份样本中仅检测到T - 2毒素。
