关键词: 斑叶露兜树, 串珠镰刀菌, 鉴定, 体内菌量

Abstract: The objectives of this study were to isolate and identify the pathogen which caused stem rot of Pandanus veitchii, and to determine the amount of this pathogen inside the plant. The diseased plants of P. veitchii showing symptoms of stem rot were collected from Jianxin, Fujian province, PR China. 10 isolates of microorganism were obtained and identified as Fusarium verticillioides by Booth's method and sequence of rDNA-ITS. And, the results of pathogenicity testing confirmed that these isolates were pathogen of P. veitchii. Meanwhile, comparative investigation was conducted on the amount of F. verticillioides inside the symptomatic and asymptomatic plants of P. veitchii. It was found that the amounts of the pathogen in the stem were higher than those of in the root and in the leaves. The pathogens in the symptomatic plants were significantly more than those in the asymptomatic plants.

Key words: Pandanus veitchii, Fusarium verticillioides, identification, distribution inside plant