Collodiscula japonica I. Hino &amp; Katum., Bull. Faculty Agricult.
Creators: name: Wu, You-Peng
name: Pi, Yin-Hui
name: Long, Si-Han
name: Lin, Yan
name: Long, Qing-De
name: Kang, Ji-Chuan
name: Kang, Ying-Qian
name: Shen, Xiang-Chun
name: Wijayawardene, Nalin N.
name: Zhang, Xu
name: Li, Qi-Rui
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Sordariomycetes
Xylariales
Xylariaceae
Collodiscula
Collodiscula japonica

description: <i>Collodiscula japonica</i> I. Hino &amp; Katum., Bull. Faculty Agricult., Yamaguchi University 6: 55 (1955) (Fig. 3) ≡ <i>Acanthodochium collodisculae</i> Samuels, J.D. Rogers &amp; Nagas., Mycotaxon 28(2): 457 (1987) MycoBank: MB295371 Saprobic on dead bamboo culms, arising from the center of the base and perpendicular to the surface of the substrate. <b>Sexual morph</b>: <i>Stromata</i> scattered, superficial, pulvinate, 0.8–1 mm diam., 0.3–0.6 mm high, containing 1(–3) ascomata, coronate with the outer stroma remaining as a ‘crown’ around the inner stroma, black, carbonaceous, the combined outer and inner stromal layers fused to form a single layer, easily stripped from the inner stroma. <i>Perithecia</i> semiglobose, 0.4–0.6 mm diam., 0.3–0.6 mm high. <i>Asci</i> 120–148 × 7.0–11.4 μm (mean 132 × 8.3 μm, n = 30), 8-spored, unitunicate, short-stipitate, apically rounded with a J+, funnel-shaped apical apparatus, blue staining in Melzer’s reagent. <i>Ascospores</i> 19–26 × 4.5–5.5 μm (mean 22.5 × 4.8 μm, n = 30), fusiform to narrowly fusiform, brown to dark brown, 1-septate, not or slightly constricted at septum, inaequilateral, with rounded ends, smooth- walled, lacking germ slits or appendages. <b>Asexual morph</b>: <i>Acanthodochium collodisculae</i>. <b>Specimens examined</b>: <b>—</b> CHINA. Guizhou Province: Tongren City, Fanjingshan Nature Reserve (27.533842°N, 108.454326°E), elev. 920 m, on dead bamboo culms, 10 October 2020, Q.R. Li 2020 FJS37 (GMB0035, KUN-HKAS 112692; living culture, GMBC0035). <b>Culture characteristics:—</b> Ascospores germinated on PDA within 24 hours at 25 °C, colonies, dense but thinning towards the edge, edge irregular, white from above, reverse similar in colour. No conidia were observed on PDA and OA media. <b>Habitat/Distribution:—</b> Known to inhabit dead bamboo, China, Japan, Russia. <b>Other specimens examined:—</b> CHINA. Guizhou Province: Tongren City, Fanjingshan Nature Reserve (27.544283°N, 108.42908°E), elev. 1037 m, on dead bamboo culms, 10 October 2020, Q.R. Li, collection number: 2020 FJS29 (GMB0034, KUN-HKAS 112690; living culture, GMBC0034). <b>Notes:—</b> The genus <i>Collodiscula</i> was introduced and typified by <i>C. japonica</i> from bamboo culms in Japan. Subsequently, <i>C. japonica</i> has been reported from Russia (Vasilyeva 1998), Taiwan (Ju &amp; Rogers 1999), and Zhejiang province, China (Jaklitsch &amp; Voglmayr 2012). Phylogenetic analyses of the combined ITS, RPB 2, β-tubulin and α-actin sequences dataset shows that our strains, GMB0034 and GMB0035, clade with <i>C. japonica</i> (CBS124266) with high support (95% ML, 0.98 BYPP; Fig. 1). The new collections are morphologically the same as <i>C. japonica.</i> Interestingly, all collections of <i>C. japonica</i> were found on the surface of bamboo culms.
description: Published as part of <i>Wu, You-Peng, Pi, Yin-Hui, Long, Si-Han, Lin, Yan, Long, Qing-De, Kang, Ji-Chuan, Kang, Ying-Qian, Shen, Xiang-Chun, Wijayawardene, Nalin N., Zhang, Xu &amp; Li, Qi-Rui, 2021, Morphological and phylogenetic study of five species of Astrocystis and Collodiscula on bamboo, pp. 265-284 in Phytotaxa 522 (4)</i> on page 273, DOI: 10.11646/phytotaxa.522.4.1, http://zenodo.org/record/5565846
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