Neodendryphiella, a novel genus of the Dictyosporiaceae (Pleosporales)

By

Iturrieta - González, Isabel
Gené, Josepa
Guarro, Josep
Castañeda Ruiz, Rafael F.
García, Dania

Type

Article

Date of Publication

2018-7-26

Original Publication

NeoBiota : advancing research on alien species and biological invasions

Volume

37

Pages

19--38

Subjects

Ascomycota , Dendryphiella , Phylogeny , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sophia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/mycokeys.37.27275

 

Abstract

In a survey of soil and herbivore dung microfungi in Mexico and Spain, several dendryphiella-like species were found. Phylogenetic analyses based on ITS and LSU sequences showed that these fungi belonged to the family Dictyosporiaceae (Pleosporales) and represent an undescribed monophyletic lineage distant fromDendryphiella. Therefore, the genusNeodendryphiellais proposed to accommodate three new species,N.mali,N.michoacanensisandN.tarraconensis. The novel genus shares morphological features withDendryphiellasuch as differentiated conidiophores and polytretic integrated conidiogenous cells, that produce acropetal branched chains of conidia.Neodendryphielladiffers in the absence of nodulose conidiophores bearing conidiogenous cells with pores surrounded by a thickened and darkened wall, typical features in the conidiogenous apparatus ofDendryphiella. In addition, the phylogenetic and morphological analysis of several reference strains of differentDendryphiellaspecies, available for comparison, support the proposal ofD.variabilissp. nov., which mainly differs from the other species of the genus by having conidia up to 7 septa and highlight thatD.vinosaandD.infuscansare obscure species that require further taxonomic review.