A callus of sugar cane was inoculated with smut crude toxin (Ustiagoscitaminea syd).

• 甘蔗黑穗病菌（UstiagoScitamimeaSyd）的粗毒素处理三个甘蔗品种（新台糖10号、CP65/375和桂糖12号）的愈伤组织。