以广西凭祥红锥-马尾松混交林中红锥和马尾松为研究对象,采集林下外生菌根和根际土壤,利用高通量测序分析该混交林下的菌根际微生物群落结构。结果表明,红锥、马尾松菌根际优势真菌为红菇属Russula、被孢霉属Mortierella、乳菇属Lactar...以广西凭祥红锥-马尾松混交林中红锥和马尾松为研究对象,采集林下外生菌根和根际土壤,利用高通量测序分析该混交林下的菌根际微生物群落结构。结果表明,红锥、马尾松菌根际优势真菌为红菇属Russula、被孢霉属Mortierella、乳菇属Lactarius、鹅膏属Amanita、拟锁瑚菌属Clavulinopsis、丝盖伞属Inocybe、锁瑚菌属Clavulina和木霉属Trichoderma,其中,Russula为绝对优势类群,菌根和根际中共生真菌均以外生菌根真菌为主。而优势细菌主要为常见菌根辅助细菌,如伯克霍尔德氏菌属Burkholderia、假单细胞菌属Pseudomonas、慢生根瘤菌属Bradyrhizobium、根瘤菌属Rhizobium和土壤杆菌属Agrobacterium,除芽孢杆菌属Bacillus外,菌根内菌根辅助细菌均高于根际。PICRUST功能分析表明红锥和马尾松菌根中部分膜运输通路(ABC transporters、transporters和secretion system ABC)和信号转导通路(two-component system)的丰度高于根际。α多样性分析表明,菌根和根际微生物多样性存在显著差异,马尾松菌根、根际真菌群落多样性显著高于红锥;β多样性分析表明两树种菌根和根际分别具有相似的微生物群落结构。优势菌群和土壤环境因子的RDA分析表明,土壤pH、全磷和全钾是影响菌根际菌群结构的主要环境因子。展开更多
记述了中国乳菇属真菌的1个新记录种:紫色乳菇Lactarius purpureus R.Heim ex R.Heim,标本采自中国广东省韶关市曲江区小坑林场。该种的鉴别特征是菌盖表面具橙褐色同心环样轮纹和大量紧贴盖表的橙褐色小鳞片,担孢子圆形至宽椭圆形,具...记述了中国乳菇属真菌的1个新记录种:紫色乳菇Lactarius purpureus R.Heim ex R.Heim,标本采自中国广东省韶关市曲江区小坑林场。该种的鉴别特征是菌盖表面具橙褐色同心环样轮纹和大量紧贴盖表的橙褐色小鳞片,担孢子圆形至宽椭圆形,具黑色脊纹或疣点;侧生囊状体近纺锤状至近柱锥状,顶部尖锐或呈小泡;褶缘囊状体纺锤状;盖表菌丝平伏排列。展开更多
Based on field investigation,the diversity of macrofungi in Shangri-La County,Northwest in Yunnan Province of China is reported.There are approximately 200 species belonging to about 80 genera and 36 families of macro...Based on field investigation,the diversity of macrofungi in Shangri-La County,Northwest in Yunnan Province of China is reported.There are approximately 200 species belonging to about 80 genera and 36 families of macrofungi,among them,nearly 80 species are edible and 50 species are medicinal.Besides,the utilization situation of macrofungi resources are analyzed and suggestions about its sustainable utilization and conservation are put forward.展开更多
文摘以广西凭祥红锥-马尾松混交林中红锥和马尾松为研究对象,采集林下外生菌根和根际土壤,利用高通量测序分析该混交林下的菌根际微生物群落结构。结果表明,红锥、马尾松菌根际优势真菌为红菇属Russula、被孢霉属Mortierella、乳菇属Lactarius、鹅膏属Amanita、拟锁瑚菌属Clavulinopsis、丝盖伞属Inocybe、锁瑚菌属Clavulina和木霉属Trichoderma,其中,Russula为绝对优势类群,菌根和根际中共生真菌均以外生菌根真菌为主。而优势细菌主要为常见菌根辅助细菌,如伯克霍尔德氏菌属Burkholderia、假单细胞菌属Pseudomonas、慢生根瘤菌属Bradyrhizobium、根瘤菌属Rhizobium和土壤杆菌属Agrobacterium,除芽孢杆菌属Bacillus外,菌根内菌根辅助细菌均高于根际。PICRUST功能分析表明红锥和马尾松菌根中部分膜运输通路(ABC transporters、transporters和secretion system ABC)和信号转导通路(two-component system)的丰度高于根际。α多样性分析表明,菌根和根际微生物多样性存在显著差异,马尾松菌根、根际真菌群落多样性显著高于红锥;β多样性分析表明两树种菌根和根际分别具有相似的微生物群落结构。优势菌群和土壤环境因子的RDA分析表明,土壤pH、全磷和全钾是影响菌根际菌群结构的主要环境因子。
文摘记述了中国乳菇属真菌的1个新记录种:紫色乳菇Lactarius purpureus R.Heim ex R.Heim,标本采自中国广东省韶关市曲江区小坑林场。该种的鉴别特征是菌盖表面具橙褐色同心环样轮纹和大量紧贴盖表的橙褐色小鳞片,担孢子圆形至宽椭圆形,具黑色脊纹或疣点;侧生囊状体近纺锤状至近柱锥状,顶部尖锐或呈小泡;褶缘囊状体纺锤状;盖表菌丝平伏排列。
文摘Based on field investigation,the diversity of macrofungi in Shangri-La County,Northwest in Yunnan Province of China is reported.There are approximately 200 species belonging to about 80 genera and 36 families of macrofungi,among them,nearly 80 species are edible and 50 species are medicinal.Besides,the utilization situation of macrofungi resources are analyzed and suggestions about its sustainable utilization and conservation are put forward.
