Neoarthrinium brasiliense, sp. nov. (Apiosporaceae, Sordariomycetes), a new endophytic fungal species from Lafoensia pacari tree

Deyse Viana dos Santos, Thays Gabrielle Lins de Oliveira, Rejane Maria Ferreira da Silva, Gladstone Alves da Silva, Cristina Maria de Souza-Motta, José Luiz Bezerra & Rafael José Vilela de Oliveira

Sydowia 76: 179-185

Published online on May 7th, 2024

A new species of Neoarthrinium is described from Brazil based on morphological and molecular analyses. During endophyte collection in the cocoa area of the agroecosystem (Cabruca), Neoarthrinium brasiliense was obtained from the leaves of Lafoensia pacari. Morphological characteristics and multi-gene phylogenetic analyses based on the DNA sequences of the internal transcribed spacer (ITS), 28S rDNA region (LSU), and tubulin (TUB2) showed that N. brasiliense was distinct from other species of the genus. The new species is morphologically characterized by its ampulliform, doliiform, or cylindrical conidiogenous cells, by conidia acroperogens singly or in chains forming clusters, with varied shapes and longitudinal germ slit. A key to the Neoarthrinium species is also provided.

Keywords: Atlantic Forest, Brazilian ecosystems, endophytic fungi, phylogeny, taxonomy.

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