Drechslerella xiaguanensis Fa Zhang, Xiao-Yan Yang, Kevin D. Hyde, 2022

Zhang, Fa, Boonmee, Saranyaphat, Monkai, Jutamart, Yang, Xiao-Yan & Xiao, Wen, 2022, Drechslerella daliensis and D. xiaguanensis (Orbiliales, Orbiliaceae), two new nematode-trapping fungi from Yunnan, China, Biodiversity Data Journal 10, pp. 96642-96642 : 96642

Drechslerella xiaguanensis Fa Zhang, Xiao-Yan Yang, Kevin D. Hyde sp. nov.

Materials

Type status: Holotype. Occurrence: occurrenceRemarks: Isolated from burned forest soil; occurrenceID: 7D732B1B-4091-549C-97B3-64CC0D42FFC0; Taxon: scientificName: Drechslerella xiaguanensis; kingdom: Fungi; phylum: Ascomycota; class: Orbiliomycetes; order: Orbiliales; family: Orbiliaceae; genus: Drechslerella; specificEpithet: xiaguanensis; taxonRank: Species; scientificNameAuthorship: Fa Zhang, Xiao-Yan Yang, Kevin D. Hyde; Location: country: China; countryCode: CHN; stateProvince: Yunnan; county: Dali; locationRemarks: China, Yunnan Province, Dali City, Cangshan Mountain , burned forest soil, 25 July 2017; Identification: identifiedBy: Fa Zhang; Record Level: language: English; collectionID: CGMCC3.20132 Type status: Isotype. Occurrence: occurrenceRemarks: Isolated from burned forest soil; occurrenceID: A14AF229-0901-5266-92D8-8950A34DCCDF; Taxon : scientificName: Drechslerella xiaguanensis; kingdom: Fungi ; phylum: Ascomycota ; class: Orbiliomycetes ; order: Orbiliales ; family: Orbiliaceae ; genus: Drechslerella ; specificEpithet: xiaguanensis; taxonRank: Species ; Location : country: China; countryCode: CHN; stateProvince: Yunnan Province; county: Dali ; locationRemarks: China, Yunnan Province, Dali City , Cangshan Mountain , burned forest soil; Identification : identifiedBy: Fa Zhang ; Record Level : language: English ; collectionID: DLU23-1

Description

Colonies white, cottony, slow-growing on PDA medium, reaching 50 mm diameter after 15 days at 26°C. Mycelium hyaline, smooth, septate, branched. Conidiophores 145-315 µm (x̅ = 208.5 µm, n = 50) long, 3-6 µm (x̅ = 4 µm, n = 50) wide at the base, 2-3 µm (x̅ = 2.5 µm, n = 50) wide at the apex, hyaline, erect, septate, unbranched, bearing a single conidium at the apex. Conidia 33-52 × 9.5-28 µm (x̅ = 42.5-15.5 µm, n = 50), hyaline, smooth, fusiform, spindle-shaped, rounded and swollen at the both ends, 2-4-septate, mostly 3-septate, germinating tubes produced from both ends. Chlamydospores not observed. Capturing nematodes with three-celled constricting rings, in the non-constricted state, the outer diameter is 19-27.5 µm (x̅ = 24 µm, n = 50), the inner diameter is 12.5-20.5 µm (x̅ = 17 µm, n = 50), stalks 5-11.5 µm (x̅ = 9 µm, n = 50) long and 4.5-6 µm (x̅ = 5 µm, n = 50) wide (Fig. 2 ).

Diagnosis

D. xiaguanensis differs from D. aphrobrocha by its smaller conidia and swollen cells at both ends of conidia.

Etymology

The species name " Drechslerella xiaguanensis " refers to the locality (Xiaguan) of the type specimen.

Distribution

China, Yunnan Province, Dali City, Cangshan Mountain, from burned forest soil.

Figures

Figure 2. Drechslerella xiaguanensis (holotype, CGMCC 3.20132). a Culture colony; b, c Conidia; d Germinating conidia; e Constricting rings; f, g Conidiophore. Scale bars: a = 1 cm; b-g = 10 µm.