Cylindromonium dirinariae sp. nov. (Ascomycota, Hypocreales), a new nectrioid lichenicolous species on Dirinaria applanata in Japan

A Ohmaki; I Okane; P W Crous; G J M Verkley

doi:10.3114/fuse.2023.11.01

Cylindromonium dirinariae sp. nov. (Ascomycota, Hypocreales), a new nectrioid lichenicolous species on Dirinaria applanata in Japan

Fungal Syst Evol. 2023 Jan:11:1-10. doi: 10.3114/fuse.2023.11.01. Epub 2023 Jan 23.

Authors

A Ohmaki¹, I Okane², P W Crous³, G J M Verkley³

Affiliations

¹ Agro-Bioresources Science and Technology, Univ. of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.
² Faculty of Life and Environmental Sciences, Univ. of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.
³ Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, Netherlands.

Abstract

A nectrioid fungus forming a pinkish colony with mainly solitary phialides producing ellipsoid, aseptate conidia in mucoid packets was isolated from Dirinaria applanata. Our taxonomic study based on morphology and phylogenetic analysis using ITS rDNA sequences revealed that the isolates represented a member of the genus Cylindromonium. Based on further morphological examination, nucleotide sequence comparison, and phylogenetic analysis based on LSU rDNA, tef1, and rpb2 in addition to the phylogenetic analysis using the ITS rDNA sequences, the fungus from Dirinaria represents a new species, which is described here as Cylindromonium dirinariae sp. nov. Furthermore, inoculation experiments revealed that this species can also produce perithecia when inoculated on the host lichen in laboratory environments. Citation: Ohmaki A, Okane I, Crous PW, Verkley GJM (2023). Cylindromonium dirinariae sp. nov. (Ascomycota, Hypocreales), a new nectrioid lichenicolous species on Dirinaria applanata in Japan. Fungal Systematics and Evolution 11: 1-10. doi: 10.3114/fuse.2023.11.01.

Keywords: Nectriaceae; culture; inoculation; lichenicolous fungi; new taxon; phylogeny.