ABSTRACT During surveys of insect-associated mycobiomes in Norway, Poland, and Russia, isolates with affinity to Graphilbum (Ophiostomatales, Ascomycota) were recovered. In this study, eight known Graphilbum species as well as the newly collected isolates were compared based on morphology and DNA sequence data for four gene regions. The results revealed seven new species, described here as G. acuminatum, G. carpaticum, G. curvidentis, G. furuicola, G. gorcense, G. interstitiale, and G. sexdentatum. In addition to these species, G. crescericum and G. sparsum were commonly found in Norway. All new species were recovered from conifers in association with bark beetles, cerambycid beetles, and weevils and were morphologically similar, predominantly with pesotum-like asexual morphs. Where sexual morphs were present, these were small ascomata with short necks and rod-shaped ascospores having hyaline sheaths. The results suggest that Graphilbum species are common members of the Ophiostomatales in conifer ecosystems.

中文翻译：

---

挪威、波兰和俄罗斯的七种针叶树新种

摘要 在挪威、波兰和俄罗斯对昆虫相关菌群的调查中，发现了对 Graphilbum（Ophiostomatales、Ascomycota）具有亲和力的分离株。在这项研究中，基于四个基因区域的形态学和 DNA 序列数据比较了八种已知的 Graphibum 物种以及新收集的分离株。结果揭示了七个新物种，在此描述为 G. acuminatum、G. carpaticum、G. curvidentis、G. furuicola、G. gorcense、G. interstiale 和 G. sexdentatum。除了这些物种，G. crescericum 和 G. sparsum 在挪威也很常见。所有新物种都是从与树皮甲虫、天牛甲虫和象鼻虫相关的针叶树中发现的，并且在形态上相似，主要是类似比索图姆的无性变体。在有性变体的地方，这些是具有短颈和具有透明鞘的杆状子囊孢子的小子囊。结果表明，Graphilbum 物种是针叶树生态系统中 Ophiostomatales 的常见成员。