Four new species and three new records of helicosporous hyphomycetes from China and their multi-gene phylogenies

Abstract

Helicosporous hyphomycetes have the potential to produce a variety of bioactive compounds. However, the strain resources of this fungal group are relatively scarce, which limits their further exploitation and utilization. In this study, based on phylogenetic analyses of combined ITS, LSU, RPB2, and TEF1α sequence data and the morphology from 11 isolates, we introduce four new species of helicosporous hyphomycetes, viz. Helicoma wuzhishanense, Helicosporium hainanense, H. viridisporum, and Neohelicomyces hainanensis, as well as three new records, viz. Helicoma guttulatum, H. longisporum, and Helicosporium sexuale. Detailed morphological comparisons of the four new species that distinguish them are provided.

Neogrisphenol A, a Potential Ovarian Cancer Inhibitor from a New Record Fungus Neohelicosporium griseum

“…Notes: Using morphological and phylogenetic evidence, Lu et al [ 12 ] synonymized Helicosporium griseum , H. lumbricoides, and H. bellus as Neohelicosporium griseum . Based on the results of a multilocus phylogenetic analysis, a new isolate collected from a terrestrial habitat was determined to be Neohelicosporium griseum in this study ( Figure 2 ).…”

“…What must be emphasized is that the morphological characteristics of the new isolate differ from those of previously described specimens due to its larger conidia (27–32 μm diam., 2–4.5 μm wide vs. 12–15 μm diam., 1–2.5 μm wide) [ 15 ] than Helicosporium griseum . According to the suggestions for helicosporous hyphomycetes species identification by Lu et al [ 12 ], the size of conidia is an essential factor in identifying helicosporous fungi. However, we cannot compare the morphology of the new isolate with the morphology of the other strains that provided molecular data due to the absence of morphological characteristics in the previously described strains.…”

“…Decaying wood samples were collected randomly from sites in Guiyang Forest Park, China. The specimen examination, micromorphological study, DNA extraction, PCR amplification, sequencing, and phylogenetic analysis were conducted using the method described in Lu et al [ 12 ].…”

Morphological and phylogenetic analyses reveal three new species and one new record of Tubeufia (Tubeufiales, Tubeufiaceae) from southern China

“… Tubeufia was introduced by Penzig and Saccardo (1897) with the type species T. javanica and two other species ( T. anceps and T. coronata ). Tubeufia species are widely distributed in tropical and temperate regions, including freshwater and terrestrial habitats, occurring primarily on well-rotted wood ( Barr 1979 ; Rossman 1987 ; Ho et al 2002 ; Tsui and Berbee 2006 ; Tsui et al 2007 ; Zhao et al 2007 ; Boonmee et al 2011 , 2014 ; Chaiwan et al 2017 ; Dai et al 2017 ; Doilom et al 2017 ; Lu et al 2017 , 2018a , 2018b , 2022 , 2023 ; Tian et al 2022 ). There are currently 56 accepted species in Tubeufia , as listed in Table 1 .…”

Editorial: Insights on fungal diversity of ascomycetes and basidiomycetes: taxonomy and interaction with their host

“…However, the knowledge of both phyla remains significantly missing and awaiting further research. Some of them are similar in morphology but have a far phylogenetic relationship, while others are closely related but have great morphological differences (Lu et al, 2018(Lu et al, , 2022. Understanding the diversity and taxonomy of fungi in the Ascomycetes and Basidiomycetes are essential for unraveling their ecological roles, evolutionary relationships, and potential applications.…”