Trechispora bambusicola 2021

Trechispora bambusicola C.L. Zhao, sp. nov.2021

MycoBank no: MB 838612

Holotype: China, Yunnan Province, Pu’er, Laiyanghe National Forest Park, on dead bamboo, 30 September 2017, CLZhao 3305 (SWFC).

Morphological description

Sexual morph: Undetermined

Asexual morph: 

Basidiomata 

Annual, adnate, soft, and fragile, without odor or taste when fresh, becoming granulose upon drying, up to 15 cm long and 5 cm wide, 50–300μm thick. Hymenial surface odontioid, aculei cylindrical to conical, blunt, 0.3–0.5 mm long, white to cream when fresh, turn to cream to buff upon drying. Margin white to cream.

Hyphal structure

Monomitic, generative hyphae with clamp connections, hyaline, thick-walled, up to 0.7μm, richly branched, 2–3μm in diameter, IKI-,CB-;hyphae unchanged in KOH.

Hymenium

Cystidia and cystidioles absent; basidia shortly cylindrical to subclavate with median constriction, with 4-sterigmata and a basal clamp connection, 9–13 ×2.5-5μm, basidioles dominant, in shape similar to basidia, but slightly smaller.

Basidiospores

Ellipsoid, hyaline, thick-walled, ornamented, sparse aculei, sharp, IKI-, CB-, (2.6 )2.9–3.5( 3.9) 2–2.7μm, L = 3.18μm, W=2.41μm,Q=1.26–1.38(n=60/2).

Culture characteristics:

Habitat:

Distribution: China

GenBank Accession: ITS MW544021; nLSU MW520171

ITS MW544022; nLSU MW520172

Notes:

Reference: [1] Zhao, W. , &  Zhao, C. L. . (2021). The phylogenetic relationship revealed three new wood-inhabiting fungal species from genus trechispora. Frontiers in Microbiology, 12, 650195.

Basidiomata of Trechispora bambusicola (holotype): Bars: (A) 2 cm; (B) 1 mm.

Microscopic structures of Trechispora bambusicola (drawn from the holotype): (A) Section of hymenium. (B) Basidiospores. (C) Basidia and basidioles. Bars: (A,C) 10μm; (B) 5μm.