Pseudoberkleasmium pandanicola
Pseudoberkleasmium pandanicola Tibpromma & K.D. Hyde, Fungal Diversity 93: 51 (2018)
Index Fungorum number: IF555332 Facesoffungi number: FoF04510
Sexual morph: Undetermined. Asexual morph: Hyphomycetous. Colonies on natural substrate, in small groups, blackish to brown, velvety, glistening, with conidia readily liberated when disturbed. Mycelium immersed in the substrate, composed of branched, septate, smooth, hyaline to subhyaline hyphae. Conidiophores micronematous, mononematous, fasciculate, septate, hyaline or subhyaline. Conidiogenous cells holoblastic, monoblastic, integrated, terminal, determinate, globose, with or without guttules, hyaline to subhyaline. Conidia acrogenous, solitary, broadly ellipsoidal to obovoid, flflat tened, one-cell thick, muriform, brown olivaceous green, with or without guttules.
Known distribution: CHINA, Yunnan Province.
Culture characteristics: Conidia germinating on PDA within 24 h. Colonies on PDA, circular, undulate with dark grey mycelium and raised on surface media. Mycelium superficial, velvety.
Material examined: CHINA, Yunnan Province, Xishuangbanna, on fallen dead and decaying leaf sheath of Pandanus sp., 28 April 2017, R. Phookamsak & N.I. de Silva XTBG14 (HKAS 99622, holotype); ex-type living culture, KUMCC 17-0178 = MFLUCC 17-2264.
GenBank Accession No: LSU: MH260304; ITS: MH275071; SSU: MH260344.
Notes: Pseudoberkleasmium pandanicola is the type species of the genus Pseudoberkleasmium, which can be distinguished morphologically. In the phylogenetic tree the strain formed a separate branch from other species based on combined LSU, SSU, ITS and TEF1 data, thus it is considered as a new genus and species.
Figure X. Pseudoberkleasmium pandanicola (HKAS 99622, holotype). a Colony on dead leaf sheath of Pandanus sp. b–f Conidia attached with conidiogenous cells. g Germinating conidium. h, i Colonies on PDA from above and below. Scale bars: b = 20 μm, c–g = 10 μm.
Reference: Tibpromma S, Hyde KD, Bhat JD, Mortimer PE, Xu JC, Promputtha I, Doilom M, Yang JB, Tang AMC, Karunarathna SC (2018) Identification of endophytic fungi from leaves of Pandanaceae based on their morphotypes and DNA sequence data from southern Thailand. MycoKeys. 33:25-67.
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