<Emphasis Type="Italic">Aurifilum,</Emphasis> a new fungal genus in the Cryphonectriaceae from <Emphasis Type="Italic">Terminalia</Emphasis> species in Cameroon |
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Authors: | Aime Didier B Begoude Marieka Gryzenhout Michael J Wingfield Jolanda Roux |
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Institution: | 1.Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI),University of Pretoria,Pretoria,South Africa;2.Laboratoire Régional de Lutte Biologique et de Microbiologie Appliquée, Institut de la Recherche Agricole pour le Développement (IRAD),Yaounde,Cameroun |
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Abstract: | 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 β-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. |
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