Cytospora anacardii (Cytosporaceae, Diaporthales): A new endophytic species from Anacardium occidentale of the Brazilian savanna

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Abstract
Cytospora species are mainly found as phytopathogens but are also reported as endophytes and saprophytes in several host plants. During a study of the diversity of endophytic fungi associated with Anacardium occidentale in an area of the Brazilian savanna (Cerrado), isolates of Cytospora were identified and differentiated from other species by morphological and phylogenetic analyses (ITS, act, rpb2, tef1, and tub2). Cytospora anacardii has been proposed as a new endophytic species, and it has pycnidia and conidiogenous cells smaller than those of the phylogenetically related species Cytospora phitsanulokensis. Our data highlight the importance of investigating endophytes as important economic hosts and expand our knowledge of global Cytospora diversity and distribution. To the best of our knowledge, this is the first report of Cytospora being an endophyte of Anacardium occidentale.

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