广西北海红树林土壤放线菌的分离与鉴定(摘要)(英文)

Isolation and Identification of Soil Actinobacteria from Mangrove forest in Beihai,Guangxi Province

[目的]鉴定广西北海红树林土壤放线菌的物种多样性。[方法]从广西北海红树林土壤中分离、筛选10株典型放线菌菌株,提取基因组DNA,进行16S rDNA PCR扩增与测序,并构建进化树。[结果]通过Blast比对,10株放线菌属于2个属,其中8株为链霉菌属(80%),2株为拟诺卡氏菌属(20%)。[结论]广西北海红树林土壤蕴藏着种类丰富的放线菌。

[Objective] The aim was to identify the species diversity of Actinomycetes from Mangrove forest in Beihai,Guangxi Province. [Method] 10 strains of typical Actinomycetes were isolated from Mangrove forest soil,and the Actinomycetes genomic DNA was successful extracted. 16S rDNA was amplified by PCR and sequenced by Sanger dideoxy sequencing method. [Result] All the sequences were blasted in genbank,eight strains belonged to the genus of Streptomyces (80%),and two strains belonged to the genus of Nocardiopsis (20%). [Conclusion] There are many different Actinomycetes species in Mangrove forest soil samples in Beihai,Guangxi Province.