Pleosporales » Parabambusicolaceae » Parabambusicola

Parabambusicola thysanolaenae

Parabambusicola thysanolaenae Goonas., Jayasiri, Phookamsak & K.D. Hyde, in Phookamsak et al., Fungal Diversity Notes: 10.1007/s13225-019-00421-w, [43] (2019)

Index Fungorum number: IF555596         Facesoffungi number: FoF04964


Sexual morph: Ascomata 130–170 µm high, 430–600 µm wide, mostly clustered together, sometimes solitary, immersed under host epidermis, raised, becoming semi-immersed, globose in surface view, hemispherical with a flattened base in cross section, uni-loculate, glabrous, ostiole central, with pore-like opening. Peridium 25–60 µm wide, lateral walls composed of numerous layers of inner, hyaline, flattened cells to outer, pale brown to brown, textura angularis cells and pale brown to brown, globular or polygonal cells showing no conspicuous layers at the base, intermixed with host tissue. Hamathecium composed of numerous, 1.5–3 µm wide, filamentous, septate pseudoparaphyses, anastomosing above the asci, embedded in a hyaline gelatinous matrix. Asci (50–)80–120 ×  (10–) 25–33 µm (x̄ = 107 ×  28 µm, n = 30), 8-spored, bitunicate, fissitunicate, broadly cylindrical to cylindric-clavate, subsessile, rounded at the apex, with inconspicuous ocular chamber, clearly visible when young. Ascospores 45–55 ×  7.5–11 µm (x̄ = 46.5 × 9 9 µm, n = 35), overlapping 2–3-seriate, hyaline, fusiform to vermiform, narrower towards the lower cell, enlarged at the 4th cell from apex, slightly curved, 5–(6–7)-septate, primary septum mostly median, constricted at the septa, smooth-walled, with an entire sheath, large guttules present when immature. Asexual morph: Undetermined.


Culture characteristics: Colonies on PDA reaching 30–32 mm diam. after 3 weeks at room temperature (20–30 °C). Colony dense, circular, flattened, surface smooth, with entire edge, velvety to floccose; from above greenish grey to dark green, paler at the edge; from below, black; produced dark brown pigmentation around colony on agar medium. Colonies on MEA reaching 28–30 diam. after 3 weeks at room temperature (20–30 °C). Colony dense, circular, flattened, surface smooth, with entire edge, floccose to cottony; from above cream to pale yellowish; from below, yellowish brown, paler at the edge; not producing pigmentation on agar medium.


Habitat: -


Known hosts: -


Known distribution: -


Material examined: CHINA, Yunnan Province, Xishuangbanna, Mengla County, Xishuangbanna Tropical Botanical Garden (XTBG), on dead stems of Thysanolaena maxima (Roxb.) Kuntze (Poaceae), 22 April 2017, R. Phookamsak, IS003 (KUN-HKAS 102222, holotype), extype living culture, KUMCC 18-0147 (IS003A), KUMCC 18-0148 (IS003B).


GenBank Accession No: ITS: MK098190, LSU: MK098199, SSU: MK098205, TEF1-a: MK098209 (KUMCC 18-0147); ITS: MK098193, LSU: MK098198, SSU: MK098202, TEF1-a: MK098211 (KUMCC 18-0148).


Notes: Parabambusicola thysanolaenae shares similar peridial and ascal characters with P. bambusina (Teng) Kaz. Tanaka & K. Hiray. but can be distinguished by having larger ascomata (300–500 × 150–300 µm in P. bambusina), absence of a beak-like structure and wider peridium (10–20 µm in P. bambusina). Ascospores of P. thysanolaenae are 5-septate and shorter than the 3–5-septate

ascospores of P. bambusina (54.7 × 8.4 µm, Tanaka and Harada 2003b). Phylogenetically P. thysanolaenae clusters with P. bambusina forming a well-separated lineage (100% ML and 1.00 BYPP).

Figure X. Parabambusicola thysanolaenae (KUN-HKAS 102222, holotype). a Appearance of ascomata on host substrate. b Section through ascoma. c Section through peridium. d Ostiole. e Asci immersed in hyaline, cellular pseudoparaphyses, stained in Indian ink.f Ascus. g–i Ascospores. j, k Ascospores stained in Indian ink. Scale bars a = 500 μm, b = 100 μm, c, d = 50 μm, e–k = 20 μm.


Phookamsak R, Hyde KD, Jeewon R, Bhat DJ, et al. (2019) Fungal diversity notes 929–1035: taxonomic and phylogenetic contributions on genera and species of fungi. Fungal Diversity (2019) 95:1–273


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.