Pseudocercospora mapelanensis sp. nov., associated with a fruit and leaf disease of Barringtonia racemosa in South Africa
Barringtonia racemosa (Lecythidaceae) is a widely distributed mangrove associate in coastal areas of Africa, Asia and Australia. During routine disease surveys along the east coast of the KwaZulu-Natal Province in South Africa, B. racemosa trees were observed with symptoms of leaf and fruit spot. A novel species of Pseudocercospora was commonly associated with these symptoms. This fungus is described as Pseudocercospora mapelanensis sp. nov., based on multi-gene sequence analyses for the ACT, ITS, LSU and TEF gene regions, as well as morphological characteristics.
KeywordsCapnodiales Lecythidaceae Mangroves Mycosphaerellaceae
This work was financially supported by the Department of Science and Technology (DST) and National Research Foundation (NRF) Center of Excellence in Tree Health Biotechnology (CTHB). We thank Ezemvelo KZN Wildlife and the Isimangaliso Wetland Park for sampling permits and assistance in the field. The material was collected under EKZNW permit no OP 4776. We are also grateful to Prof. dr U. Braun (Martin-Luther-University, Institute of Biology, Halle, Germany), for his assistance in examining the fungal material and for his valuable suggestions regarding the diagnosis of the new Pseudocercospora species. We also acknowledge Ariska Van der Nest, Arista Fourie and James Mehl (FABI, University of Pretoria), for technical assistance.
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