Hypocreales » Bionectriaceae » Paracylindrocarpon

Paracylindrocarpon nabanheensis

Paracylindrocarpon nabanheensis Tibpromma & K.D. Hyde, in Tibpromma et al., Fungal Diversity: 10.1007/s13225-018-0408-6, [102] (2018)

Index Fungorum number: IF554529         Facesoffungi number: FoF04541


Sexual morph: Ascomata 214.5–346 × 320–367 lm (= 276.4 × 342.4 μm, n = 5), scattered to gregarious, globose to subglobose, superficial, flat at the base, conspicuous on host surface, easy to remove, orange, solitary, uniloculate, covered with hyaline papilla, with ostiole at the centre. Peridium 43–79 μm wide, composed of several layers, thick-walled hyaline to subhyaline cells of textura prismatica. Hamathecium comprising 7–9 μm wide, ellipsoid, cellular, unbranched, guttulate, septate paraphyses. Asci 58–81 9 9–14 lm (= 64.4 × 10.5 μm, n = 10), (6–)8-spored, unitunicate, cylindrical to cylindricalclavate, with furcate pedicel, with J- apical ring. Ascospores 37–47 × 6–7.5 μm (= 40 × 6.5 μm, n = 10), fusiform, conical at both ends, 6-septate when mature, not constricted at the septa, hyaline to subhyaline, guttulate, without mucilaginous sheath, smooth-walled. Asexual morph: Undetermined.


Culture characteristics: Ascospores germinating on MEA within 12 h. Colonies on MEA, purple at the central and pink at the margin, with irregular, curled, with raised on media surface, dark-purple at the central with white at the margin in reverse.


Habitat: Saprobic on dead leaves of Pandanus sp..


Known distribution: China.


Material examined: CHINA, Yunnan Province, Xishuangbanna, Nabanhe, on Pandanus sp., 27 July 2016, PE Mortimer NBH10 (HKAS 96210, holotype); ex-type living culture, KUMCC 16-0147.


GenBank Accession No: LSU: MH376730; ITS: MH388356; SSU: MH388324; TEF1: MH388392.


Notes: Based on morphology Paracylindrocarpon nabanheensis is similar to P. xishuangbannaensis, which was collected from the same host and same location. Both species are known from only the sexual morph. In a comparison of the 506 ITS (?5.8S) nucleotides of P. nabanheensis and P. xishuangbannaensis reveals 20 (3.95%) nucleotide differences which justifies these two isolates as two distinct taxa and we also comparison ITS nucleotides of Paracylindrocarpon species. In a BLASTn search on NCBI GenBank, the closest matches of ITS sequence of KUMCC 16-0147 is P. aloicola with 97% identity to the strain CPC 27362 (KX228277).