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Exophiala ellipsoidea 2020

发布日期:2022-01-02 19:12:35   浏览量 :301
发布日期:2022-01-02 19:12:35  
301

Exophiala ellipsoidea W. Sun, L. Su, M.C. Xiang and X.Z. Liu, sp. nov. 2020

MycoBank MB 824208 

Holotype: China: Hebei Province: Zhangjiakou City, 4023N, 11451E, 1011 m a.s.l., from rock,24 October 2013, Lei Su, (HMAS245364 (dried culture)–holotype and CGMCC 3.17348–ex-type culture).

Morphological description


Hyphae septate, hyaline, spirally twisted hyphae frequently observed (Figure 21B,C). Yeast cells absent. Conidiogenous cells, ovoid to elongate, pale brown, 4.7–8.6-µm-long (Figure 21D–F). Conidia, one-celled, thin and smooth-walled, hyaline or pale olivaceous, broadly ellipsoidal to cylindrical with truncate hilum, 2.1–6.4 × 1.1–4.0 µm (x = 5.2 × 3.1 µm, n = 20) (Figure 21E,F).Culture characters: Colony on MEA growing slowly, attaining 23-mm-diam. after four weeks at 25 C. Colony surface velvety with pale olivaceous aerial mycelia at the center with a wide well-defined darker margin; reverse olivaceous black (Figure 21A). No diffusible pigment produced. Minimum 4 C, optimum at 20–25 C, and maximum 33 C.


Habitat: from rock 

Distribution: China

GenBank Accession


Notes: Morphologically, E. ellipsoidea resembles E. campbellii in oval to ellipsoid conidia, but the conidia of E. ellipsoidea (2.1–6.4 × 1.1–4.0 µm (x = 5.2 × 3.1 µm, n = 20)) are longer than that of E. campbellii (3.5 to 5.0 by 2.0 to 3.0 µm) [70].


Reference: Wei Sun , Lei Su , Shun Yang et al.

Exophiala ellipsoidea (CGMCC 3.17348). (A) Forward (left) and reverse (right) of colony on MEA. (B,C) Spirally twisted hyphae. (DF) Conidiophores with branched conidial chains. Scale bars:(BF) = 10 µm.

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