Diversity of filamentous fungi in organic layers of two forests in Zijin Mountain

编号 zgly0000339186

文献类型 期刊论文

文献题名 Diversity of filamentous fungi in organic layers of two forests in Zijin Mountain

学科分类 220.10;林业基础学科

作者 SONGFu-qiang  TIANXing-Jun  LIZhong-Qi  YANGChang-Lin  CHENBin  HAOJie-jie  ZHUJing 

作者单位 SchoolofLifeScience  NanjingUniversity  Nanjing210093  P.R.China 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2004,15(4)

页码 273-279

年份 2004 

分类号 S718.81 

关键词 丝状真菌  多样性  栓皮栎林  马尾松-枫香林  有机物层  分离  鉴定  凋落物  紫金山 

文摘内容 A study was conducted to evaluate the cultivable filamentous fungal diversity in organic layers (L, F, and H layers) and A1 layer of two main forest types, Pinus massoniana and Liguidambar formasana mixed forest and Quercus variabilis forest, in Zijin Mountain(32°5' N, 118°48'E), Nanjing, China. A total of 67 taxa comprising 56 Deuteromycetes, 3 Zygomycetes, 5 Ascomycetes and 3 unidentified fungi were recognized from samples from the forest floor of the two forest types. The most abundant group was Deuteromycetes. The dominant genera in both forests were Alternaria sp., Aspergillus sp., Cladosporium sp., Mucor sp., Penicillium sp., Rhizopus sp., Gliocladium sp. and Trichoderma spp. The fungal diversity was higher in the mixed forest than that in Q. variabilis forest. For both forest types, the maximum fungal diversity was found in layer F and there existed significantly different in fungal diversity between layer F and layer L In the mixed forest, richness of fungi isolated from needle litter (P.massoniana) was lower than that from leaf litter (L. formasana). The richness of fungi from needle litter increased with the increase of forest floor depth, but for leaf litter, the fungal diversity decreased with the depth of forest floor. The co-species of fungi from the two forest types, as well as from two kinds of litters in mixed forest, increased with the depth of the forest floor. The succession of fungi along with the process of decomposition was discussed here. The results also showed that litter quality was a cdtical factor affecting fungal diversity。