CAJ | 학술논문

对青岛近海度假区、港口区、养殖区、工业区4类排污口邻近海域异养细菌的组成与分布进行了调查研究，采用海洋异养细菌平板涂布培养法分离细菌，基于16S rDNA的扩增性DNA限制性酶切片段分析(ARDRA)进行聚类筛选并测序鉴定。结果显示，青岛排污口邻近海域可异养培养的菌株分布于变形菌门(Proteobacteria)、厚壁菌门(Firmicutes)、放线菌门(Actinobacteria)和拟杆菌门(Bacteroidetes)4个细菌类群，变形菌门细菌数量占总测序数量的68%，其中γ-变形菌纲的数量在变形菌门中占88%；不同海域中细菌组成与分布有所不同，放线菌门和拟杆菌门的细菌种类较少且各海域分布有所不同，但γ-变形菌纲的弧菌属细菌(Vibrio sp.)在4类海域中均被发现，占总检测量的18.54%，其中溶藻胶弧菌(Vibrio alginolyticus)占弧菌总量的25%。不同海域也检测到V. parahaemolyticus、V. harveyi、V. campbellii、V. parahaemolyticus等水产养殖业的潜在致病菌。根据16S rDNA系统进化关系和细菌门类聚类分析得到的结论推断，工业区与养殖区海域的细菌组成和分布相似度较高，推断各海域的细菌组成与排污口类型有一定相关性。
대청도근해도가구、항구구、양식구、공업구4류배오구린근해역이양세균적조성여분포진행료조사연구，채용해양이양세균평판도포배양법분리세균，기우16S rDNA적확증성DNA한제성매절편단분석(ARDRA)진행취류사선병측서감정。결과현시，청도배오구린근해역가이양배양적균주분포우변형균문(Proteobacteria)、후벽균문(Firmicutes)、방선균문(Actinobacteria)화의간균문(Bacteroidetes)4개세균류군，변형균문세균수량점총측서수량적68%，기중γ-변형균강적수량재변형균문중점88%；불동해역중세균조성여분포유소불동，방선균문화의간균문적세균충류교소차각해역분포유소불동，단γ-변형균강적호균속세균(Vibrio sp.)재4류해역중균피발현，점총검측량적18.54%，기중용조효호균(Vibrio alginolyticus)점호균총량적25%。불동해역야검측도V. parahaemolyticus、V. harveyi、V. campbellii、V. parahaemolyticus등수산양식업적잠재치병균。근거16S rDNA계통진화관계화세균문류취류분석득도적결론추단，공업구여양식구해역적세균조성화분포상사도교고，추단각해역적세균조성여배오구류형유일정상관성。
Three hundred and twelve strains of heterotrophic bacteria were isolated from the seawater of Qingdao land-based drainage discharge outlets. The sampling locations included tourist area, port area, aquaculture area and industrially affected region. Based on the analysis of 16S rDNA and Amplified Ribosomal DNA Restriction Analysis(ARDRA), these strains were clustered and identified. Four phyla including Proteobacteria, Firmicutes, Actinobacteria and Bacteroidetes were identified. Sixty-eight percent of strains belonged to Proteobacteria, and 88% of Proteobacteria were classified into Gammap-roteobacteria. The diversity and distribution of the bacteria among each region were different, and a few of them were Actinobacteria and Bacteroidetes. Vibrio sp. was found in all four regions, and it accounted for more than 18% of strains. Twenty-five percent of Vibrio sp. was V. alginolyticus. Many pathogenic bacteria such as V. parahaemolyticus, V. harveyi, V. campbellii, and V. parahaemolyticus were found in all samples. Based on analysis of 16S rDNA and clustering, the diversity and distributions of bacteria between industrially affected region and aquaculture area were highly similar. These results suggest a close relationship between the environment and the diversity and distribution of bacteria among different regions.