Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, South Africa.
Antonie Van Leeuwenhoek. 2010 Oct;98(3):263-78. doi: 10.1007/s10482-010-9467-8. Epub 2010 Jun 18.
Native Terminalia spp. in West Africa provide a popular source of construction timber as well as medical, spiritual and social benefits to rural populations. Very little is, however, known regarding the diseases that affect these trees. During an investigation into possible diseases of Terminalia spp. in Cameroon, orange to yellow fungal fruiting structures, resembling those of fungi in the Cryphonectriaceae, were commonly observed on the bark of native Terminalia ivorensis, and on dead branches of non-native Terminalia mantaly. In this study the fungus was identified based on morphological features as well as DNA sequence data (ITS and beta-tubulin) and its pathogenicity was tested on T. mantaly seedlings. Our results showed that isolates of this fungus represent a previously undescribed genus in the Cryphonectriaceae, which we describe as Aurifilum marmelostoma gen. et sp. nov. Pathogenicity tests revealed that A. marmelostoma is pathogenic on T. mantaly. These tests, and the association of A. marmelostoma with disease symptoms on T. ivorensis, suggest that the fungus is a pathogen of this important tree.
西非本地的Terminalia 属植物不仅为农村地区提供了受欢迎的建筑木材来源，还带来了医疗、精神和社会效益。然而，人们对影响这些树木的疾病知之甚少。在对喀麦隆本地 Terminalia ivorensis 和非本地 Terminalia mantaly 可能存在的疾病进行调查期间，在其树皮上和枯树枝上发现了类似于 Cryphonectriaceae 真菌的橙色到黄色真菌果实结构。在这项研究中，该真菌是根据形态特征以及 DNA 序列数据（ITS 和β-微管蛋白）进行鉴定的，并在 T. mantaly 幼苗上测试了其致病性。研究结果表明，这种真菌的分离物代表了 Cryphonectriaceae 中一个以前未描述的属，我们将其命名为 Aurifilum marmelostoma gen. et sp. nov. 致病性测试表明，A. marmelostoma 对 T. mantaly 具有致病性。这些测试以及 A. marmelostoma 与 T. ivorensis 上疾病症状的关联表明，该真菌是这种重要树木的病原体。
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