Graphilbum kesiyae
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Ordo: Ophiostomatales
Familia: Ophiostomataceae
Genus: Graphilbum
Name
Graphilbum kesiyae R. Chang & Z. W. de Beer – Wikispecies link – Pensoft Profile
- Graphilbum kesiyae Chang, Runlei, 2017, MycoKeys 28: 32-32.
Etymology
Etymology. The epithet kesiyae refers to the tree host of all beetles and mites from which the 12 isolates of this species were collected.
Description
Description. Sexual state not observed. Pesotum -like macronematal asexual states predominant. Synnemata simple, dark brown at the base, (85.5-) 112.5-173 (-203) μm long including conidiogenous apparatus, (9-) 14-45.5 (-65.5) μm wide at base; cells (8.5-) 10-18.5 (-25.5) μm long; conidia hyaline, 1-celled, smooth, oblong, (3.5-) 4-5 (-5.5) x (1.5-) 1.5-2 (-2.5) μm. Hyalorhinocladiella-like asexual state: conidiophores (22-) 38-101.5 (-166) μm long; cells arising directly from the hyphae, (10-) 12-27(-40) x (1.2-) 1.5-2 (-2.5) μm; conidia hyaline, smooth, obovoid, (3.5-) 4-5.5 (-8.5) x (1-) 1.5-2 (-3) μm.
Description
Culture characteristics. Colonies hyaline. Mycelium superficial on the 3% OA. Colony margin smooth. Colonies on 2% MEA flat, reaching 85 mm diam in 10 d at 25 °C. No growth observed at 5 and 35 °C. Optimal temperature for growth 25 °C.
Materials Examined
Additional specimens examined. CHINA, Yunnan Province, Puer City, from Insectolaelaps sp. 1 in Polygraphus szemaoensis gallery on Pinus kesiya bark, 10 Aug. 2010, S.J.Taerum, CMW41691 = CBS139642; CHINA, Yunnan Province, Puer City, from Proctolaelaps nr. hystrix in Polygraphus szemaoensis gallery on Pinus kesiya bark, 11 Aug. 2010, S.J.Taerum, PREM 61542, CMW41716 = CBS139657.
Distribution
Distribution. At present known only from Yunnan, China.
Taxon Treatment
- Chang, Runlei; Duong, Tuan A.; Taerum, Stephen J.; Wingfield, Michael J.; Zhou, Xudong; Beer, Z. Wilhelm de; 2017: Ophiostomatoid fungi associated with conifer-infesting beetles and their phoretic mites in Yunnan, China, MycoKeys 28: 32-32. doi
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