Abstract

The reexamination of the fungal genus Botryosphaeria on 12 plant species of 10 families was carried out based on molecular phylogenetic analyses using the regions of translation elongation factor 1-α, β-tubulin, DNA-directed RNA polymerase II subunit, and internal transcribed spacer region of rDNA and morphological characteristics. Japanese isolates were divided into five clades and include Botryosphaeria dothidea, B. qingyuanensis, B. sinensis, and Botryosphaeria spp. Two species, B. qingyuanensis and B. sinensis have been newly added to the Japanese mycoflora, but their host plants are not specified. Botryosphaeria tenuispora isolated from Leucothoe fontanesiana and insect galls on fruits of Aucuba japonica has been proposed as a new species.

 抽象的

利用翻译延伸因子1-α、β-微管蛋白、DNA指导的RNA聚合酶II亚基和内转录间隔区区域进行分子系统发育分析，对10科12种植物的真菌属Botryosphaeria进行了复检rDNA 和形态特征。日本分离株分为五个分支，包括Botryosphaeria dothidea 、 B. qingyuanensis 、 B. sinensis和Botryosphaeria spp。日本分枝菌群中新添加了清原芽孢杆菌和中华芽孢杆菌两个物种，但其寄主植物尚未明确。从Leucothoe fontanesiana和Aucuba japonica果实上的虫瘿中分离出的Botryosphaeria tenuispora已被提议为一个新种。