Figure 1.Trends in the accumulative number of species of Xylodon recorded in the world and China.
Figure 2.Maximum Parsimony strict consensus tree illustrating the phylogeny of four new species and related species in Xylodon within Schizoporaceae, based on ITS+nLSU sequences. Branches are labelled with Maximum Likelihood bootstrap values ≥70%, parsimony bootstrap values ≥ 50% and Bayesian posterior probabilities ≥ 0.95, respectively.
Figure 4.Basidiomata and microscopic structures of Xylodon cremeoparinaceus (holotype, CLZhao 23388, holotype) basidiomata on the substrate (A), macroscopic characteristics of hymenophore (B). Bars: (A) = 1 cm and (B) = 2 mm.
Figure 5.Microscopic structures of Xylodon cremeoparinaceus (holotype, CLZhao 23388) basidiospores (A), basidia (B), basidioles (C), capitate cystidia (D), a section of the hymenium (E). Bars: (A–E) = 20 µm.
Figure 6.Basidiomata and microscopic structures of Xylodon luteodontioides(holotype, CLZhao 3207, holotype) basidiomata on the substrate (A), macroscopic characteristics of hymenophore (B). Bars: (A) = 1 cm and (B) = 2 mm.
Figure 7. Microscopic structures of Xylodon luteodontioides (holotype, CLZhao 3207, holotype) basidiospores (A), basidia (B), basidioles (C), schizopapillate cystidia (D), capitate cystidia (E), a section of the hymenium (F). Bars: (A–F) = 20 µm.
本研究聚焦的木腐菌4个新物种均发现于云南省内,其中Xylodon cremeoparinaceus的模式标本 (Holotype) CLZhao 23388 (SWFC) 发现于云南省昭通市凤凰山森林公园内的阔叶树落枝上;Xylodon luteodontioides的模式标本 (Holotype) CLZhao 3207 (SWFC) 发现于云南省普洱市莱阳河国家森林公园内的阔叶树落枝上;Xylodon poroides的模式标本(Holotype) CLZhao 17845 (SWFC) 发现于云南省红河州大围山国家级自然保护区内的阔叶树落枝上;Xylodon wumengshanensis模式标本(Holotype) CLZhao 32517 (SWFC) 发现于云南省昭通市乌蒙山国家级自然保护区内的阔叶树落枝上。
Figure 8.Basidiomata and microscopic structures of Xylodon poroides (holotype, CLZhao 17845, holotype) basidiomata on the substrate (A), macroscopic characteristics of hymenophore (B). Bars: (A) = 1 cm and (B) = 2 mm.
Figure 9.Microscopic structures of Xylodon poroides (holotype, CLZhao 17845, holotype) basidiospores (A), basidia (B), basidioles (C), fusoid cystidia (D), capitate cystidia (E), a section of the hymenium (F). Bars: (A) = 10 µm, (B–F)=20 μm.
云南地区木生真菌资源极为丰富,但木腐菌资源情况调查还不全面,缺乏系统研究。因此,本研究聚焦云南地区木腐菌物种资源、多样性与分子系统学研究,发现了木腐菌新物种,丰富了云南地区菌物种多样性,揭示了木腐菌类群物种系统发育关系,强调了保护区保护成效和真菌资源价值,建议提升对保护区的指导、技术支持和资金支撑,进而提升保护区新物种的保护和惠益共享。
随后,研究团队从分子生物学视角,开展了系统发育树构建、基因差异比较、物种划界、等分析,所有结果都支持这一新发现的类群是不同于该属其他物种的新物种。
Figure 10.Basidiomata and microscopic structures of Xylodon wumengshanensis (holotype, CLZhao 32517) basidiomata on the substrate (A), macroscopic characteristics of hymenophore (B). Bars: (A) = 1 cm and (B) = 2 mm.
Figure 11.Microscopic structures of Xylodon wumengshanensis (holotype, CLZhao 32517) basidiospores (A), basidia (B), basidioles (C), fusoid cystidia (D), capitate cystidia (E), a section of the hymenium (F). Bars: (A–F) = 20 µm.
第一作者袁琦同学
原文链接:https://mycokeys.pensoft.net/article/128223/
课题组网站:http://www.fungitaxonomy.com/charlie/imgart.asp?classid=2.html
文字: 袁琦
图片: 袁琦
校对: 杨新
初审: 顾子蕊 杨新
终审: 赵长林