桂西南喀斯特地区木材腐朽真菌四个中国新记录种  

Four Chinese new records of wood decaying fungi from karst areas in southwest of Guangxi

作　　者：黄海思 邵元元 丁承培 郑海富 韦秋路 黄福常[1] 刘斌[1] HUANG Haisi;SHAO Yuanyuan;DING Chengpei;ZHENG Haifu;WEI Qiulu;HUANG Fuchang;LIU Bin(Institute of Applied Microbiology,College of Agriculture,Guangxi University,Nanning 530004,Guangxi,China;Key Laboratory of Environment Change and Resources Use in Beibu Gulf,Ministry of Education,Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation,Nanning Normal University,Nanning 530001,Guangxi,China;Guangxi Forest Inventory&Planning Institute,Nanning 530011,Guangxi,China)

机构地区：[1]广西大学农学院应用微生物研究所,广西南宁530004 [2]南宁师范大学北部湾环境演变与资源利用教育部重点实验室、广西地表过程与智能模拟重点实验室,广西南宁530001 [3]广西壮族自治区林业勘测设计院,广西南宁530011

出　　处：《菌物学报》2024年第3期250-262,共13页Mycosystema

基　　金：国家自然科学基金(31960006);广西自然科学基金(2022GXNSFBA035457);广西自筹经费林业科技项目(桂林科研[2022ZC]第54号)。

摘　　要：采用形态学和分子系统学方法,对采集于桂西南喀斯特地区的木材腐朽菌进行系统分类研究,报道4个中国新记录种:有根刺革菌Rhizochaete radicata、拟白边干皮孔菌Skeletocutis subalbomarginata、卵孢嗜蓝孢孔菌Fomitiporia ovoidospora和肿丝大孔菌Megasporoporia inflata。R.radicata的主要特征为担子果膜质、有裂纹;菌丝系统单系型,囊状体呈纺锤形,担孢子近卵形至椭圆形。S.subalbomarginata新鲜子实体呈红棕色;囊状体近纺锤形,具隔膜,担孢子窄腊肠形。F.ovoidospora硬木质,多年生;囊状体纺锤形,担孢子卵圆形或圆形。M.inflata一年生,菌丝在KOH试剂中变得肿大。本研究提供了4个新记录种的形态特征描述和图示;另外,采用ITS或nLSU序列进行系统发育分析,为形态学鉴定提供分子依据。Morphological and molecular phylogenetic methods were employed to systematically identify wood-decaying fungi collected in karst areas of southwest Guangxi,and four newly recorded species of China,Rhizochaete radicata,Skeletocutis subalbomarginata,Fomitiporia ovoidospora and Megasporoporia inflata were reported.The basidiomata of R.radicata are membranous and cracked;the cystidia are fusiform and the spore is subovate to oval.The fresh fruiting bodies of S.subalbomarginata is reddish brown,with subfusiform and septate cystidium,and the spore is narrowly sausage-shaped.Basidiomata of F.ovoidospora is perennial,woody,with spindle-shaped cystidia and ovoid or rounded basidiospores.Basidiomata of M.inflata is annual and the skeletal hyphae become strongly swollen in KOH.ITS or nLSU sequences were phylogenetically analysed to provide molecular side witness of morphological identification.

关 键 词：物种多样性 分类学 系统发育 大型真菌 

分 类 号：Q949.32[生物学—植物学]