Pleosporales » Pseudoberkleasmiaceae » Pseudoberkleasmium

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.


About GMS Microfungi

The webpage provides an account of GMS microfungi.


Supported by 

Thailand Science Research and Innovation (TSRI),

project entitled:

"The future of specialist fungi in a changing climate: baseline data for generalist and specialist fungi associated with ants Rhododendron species and Dracaena species"

(Grant No. DBG6080013)

"Impact of climate change on fungal diversity and biogeography in the Greater Mekong Sub-region"

(Grant No. RDG6130001)


  • Email:
  • Addresses:
    1 Center of Excellence in Fungal Research
  • Mae Fah Luang University Chiang Rai
    57100 Thailand
  • 2 Kunming Institute of Botany
  • Chinese Academy of Sciences,
  • Honghe County 654400, Yunnan, China

Published by the Mushroom Research Foundation 
Copyright © The copyright belongs to the Mushroom Research Foundation. All Rights Reserved.