The ultrastructure of conidia produced by the mycelia of Polyporus umbellatus was studied by use of scanning and transmission electron microscopy. The results suggested that only clamped (dikaryotic) mycelia produced ...The ultrastructure of conidia produced by the mycelia of Polyporus umbellatus was studied by use of scanning and transmission electron microscopy. The results suggested that only clamped (dikaryotic) mycelia produced aerial conidiophores with ovoid to rod-shaped conidia. There was a distinctive bulge near the top of the conidium. The contents of the conidia were dense. This type of conidium could be regarded as arthroconidia.展开更多
手参Gymnadenia conopsea是一种地生兰科植物,也是中国传统中药材之一。研究以ITS1为目标序列,应用Illumina Mi Seq高通量测序技术对北京地区松山和百花山的手参内生真菌区系组成进行测定分析。结果表明,从手参的根中获得有效序列50 420...手参Gymnadenia conopsea是一种地生兰科植物,也是中国传统中药材之一。研究以ITS1为目标序列,应用Illumina Mi Seq高通量测序技术对北京地区松山和百花山的手参内生真菌区系组成进行测定分析。结果表明,从手参的根中获得有效序列50 420条,209个可操作分类单元(OTUs),分属于3门9纲28目54科,包括盘菌纲Pezizomycetes(3个OTU)、伞菌纲Agaricomycetes(21个OTU)、锤舌菌纲Leotiomycetes(18个OTU)、粪壳菌纲Sordariomycetes(51个OTU)、接合菌纲Zygomycetes(18个OTU)、银耳纲Tremellomycetes(19个OTU)、散囊菌纲Eurotiomycetes(22个OTU)、酵母纲Saccharomycetes(8个OTU)、座囊菌纲Dothideomycetes(14个OTU)。其中,百花山手参根中内生真菌优势类群是鸡油菌目Cantharellales(38.62%)和柔膜菌目Helotiales(24.64%)真菌;松山手参的优势内生菌类群是盘菌目Pezizales(66.19%)和鸡油菌目Cantharellales(29.75%)真菌。这些结果利于系统了解手参根部内生真菌区系组成以及优势内生真菌类群,为今后开展相关内生真菌在手参人工繁育中的应用奠定了基础。展开更多
基金the Chinese National Science Fund for Outstanding Youths (No. 30325047)
文摘The ultrastructure of conidia produced by the mycelia of Polyporus umbellatus was studied by use of scanning and transmission electron microscopy. The results suggested that only clamped (dikaryotic) mycelia produced aerial conidiophores with ovoid to rod-shaped conidia. There was a distinctive bulge near the top of the conidium. The contents of the conidia were dense. This type of conidium could be regarded as arthroconidia.
文摘手参Gymnadenia conopsea是一种地生兰科植物,也是中国传统中药材之一。研究以ITS1为目标序列,应用Illumina Mi Seq高通量测序技术对北京地区松山和百花山的手参内生真菌区系组成进行测定分析。结果表明,从手参的根中获得有效序列50 420条,209个可操作分类单元(OTUs),分属于3门9纲28目54科,包括盘菌纲Pezizomycetes(3个OTU)、伞菌纲Agaricomycetes(21个OTU)、锤舌菌纲Leotiomycetes(18个OTU)、粪壳菌纲Sordariomycetes(51个OTU)、接合菌纲Zygomycetes(18个OTU)、银耳纲Tremellomycetes(19个OTU)、散囊菌纲Eurotiomycetes(22个OTU)、酵母纲Saccharomycetes(8个OTU)、座囊菌纲Dothideomycetes(14个OTU)。其中,百花山手参根中内生真菌优势类群是鸡油菌目Cantharellales(38.62%)和柔膜菌目Helotiales(24.64%)真菌;松山手参的优势内生菌类群是盘菌目Pezizales(66.19%)和鸡油菌目Cantharellales(29.75%)真菌。这些结果利于系统了解手参根部内生真菌区系组成以及优势内生真菌类群,为今后开展相关内生真菌在手参人工繁育中的应用奠定了基础。