贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
7期
88-92
,共5页
邵美云%李园园%岳昌武%王苗
邵美雲%李園園%嶽昌武%王苗
소미운%리완완%악창무%왕묘
病原微生物%分离%鉴定%16SrRNA%抗菌活性
病原微生物%分離%鑒定%16SrRNA%抗菌活性
병원미생물%분리%감정%16SrRNA%항균활성
pathogenic microorganism%isolation%identification%16S rRNA%antimicrobial activity
为畜牧养殖业新型抗生素药物的研究和开发利用提供优良菌株,采用分离纯化、形态学、分子生物学和超高压液相-紫外二极管阵列-高分辨率质谱联用(UPLC-DAD-HRMS)方法对贵州赤水丹霞地貌区300份土样中的菌株进行分离鉴定。结果表明:1)在分离纯化获得的31株菌株中,有21株菌株对耐万古霉素金黄色葡萄球菌、耐甲氧西林金黄色葡萄球菌、枯草芽胞杆菌和藤黄微球菌表现出不同的抗菌活性。其中,有8株菌株表现出抗2种测试菌生物活性,1株菌株(S.sp.CSDX435)表现出抗3种测试菌生物活性,1株菌株(S.sp.CSDX416)表现出抗4种测试菌生物活性。2)有20株分离菌株与Stenotrophomonas sp . A18嗜麦芽窄食单胞菌的16S rRNA同源性达99%,为嗜麦芽窄食单胞菌(Stenotrophononas maltophil-ia);11株菌株与S.sp.A18的16S rRNA同源性达78%~97%。其中,S.sp.CSDX58菌株与S.sp.A18的16S rRNA同源性最低,为78%,可能为嗜麦芽窄食单胞菌的新类群。3)从S.sp.CSDX252菌株的发酵代谢产物中发现了可能为聚醚类的新化合物 B,分子式为 C47 H78 O14,且产量较高。因此,在分离得到的31株菌株中,有21株菌株对1种或多种病原微生物表现出不同的抗菌活性,可作为畜禽新型抗生素菌株进行深入研究和开发利用。
為畜牧養殖業新型抗生素藥物的研究和開髮利用提供優良菌株,採用分離純化、形態學、分子生物學和超高壓液相-紫外二極管陣列-高分辨率質譜聯用(UPLC-DAD-HRMS)方法對貴州赤水丹霞地貌區300份土樣中的菌株進行分離鑒定。結果錶明:1)在分離純化穫得的31株菌株中,有21株菌株對耐萬古黴素金黃色葡萄毬菌、耐甲氧西林金黃色葡萄毬菌、枯草芽胞桿菌和籐黃微毬菌錶現齣不同的抗菌活性。其中,有8株菌株錶現齣抗2種測試菌生物活性,1株菌株(S.sp.CSDX435)錶現齣抗3種測試菌生物活性,1株菌株(S.sp.CSDX416)錶現齣抗4種測試菌生物活性。2)有20株分離菌株與Stenotrophomonas sp . A18嗜麥芽窄食單胞菌的16S rRNA同源性達99%,為嗜麥芽窄食單胞菌(Stenotrophononas maltophil-ia);11株菌株與S.sp.A18的16S rRNA同源性達78%~97%。其中,S.sp.CSDX58菌株與S.sp.A18的16S rRNA同源性最低,為78%,可能為嗜麥芽窄食單胞菌的新類群。3)從S.sp.CSDX252菌株的髮酵代謝產物中髮現瞭可能為聚醚類的新化閤物 B,分子式為 C47 H78 O14,且產量較高。因此,在分離得到的31株菌株中,有21株菌株對1種或多種病原微生物錶現齣不同的抗菌活性,可作為畜禽新型抗生素菌株進行深入研究和開髮利用。
위축목양식업신형항생소약물적연구화개발이용제공우량균주,채용분리순화、형태학、분자생물학화초고압액상-자외이겁관진렬-고분변솔질보련용(UPLC-DAD-HRMS)방법대귀주적수단하지모구300빈토양중적균주진행분리감정。결과표명:1)재분리순화획득적31주균주중,유21주균주대내만고매소금황색포도구균、내갑양서림금황색포도구균、고초아포간균화등황미구균표현출불동적항균활성。기중,유8주균주표현출항2충측시균생물활성,1주균주(S.sp.CSDX435)표현출항3충측시균생물활성,1주균주(S.sp.CSDX416)표현출항4충측시균생물활성。2)유20주분리균주여Stenotrophomonas sp . A18기맥아착식단포균적16S rRNA동원성체99%,위기맥아착식단포균(Stenotrophononas maltophil-ia);11주균주여S.sp.A18적16S rRNA동원성체78%~97%。기중,S.sp.CSDX58균주여S.sp.A18적16S rRNA동원성최저,위78%,가능위기맥아착식단포균적신류군。3)종S.sp.CSDX252균주적발효대사산물중발현료가능위취미류적신화합물 B,분자식위 C47 H78 O14,차산량교고。인차,재분리득도적31주균주중,유21주균주대1충혹다충병원미생물표현출불동적항균활성,가작위축금신형항생소균주진행심입연구화개발이용。
In order to provide excellent fine strains for research,exploitation and utilization of new antibiotics in livestock breeding industry,bacterial strains in 300 soil samples from Danxia landform area in Guizhou Chishui were isolated and identified by UPLC-DAD-HRMS method.Results:1)31 strains were isolated including 2 1 strains showing various antimicrobial activity to vancomycin-resistant Staphylococcus aureus(VRSA),methicillin-resistant Staphylococcus aureus (MRSA),Bacillus subtillis and Micrococcus luteus.Eight strains were resistant to two test bacteria,one resistant to three test bacteria and one resistant to four test bacteria.2)20 isolated strains had 99% 16S rRNA homology with Stenotrophomonas sp.A18,which were identified as Stenotrophononas maltophilia;11 strains had 78%~97% 16S rRNA homology with S.sp.A18.S.sp.CSDX58 had the lowest homology with S.sp.A18,merely 78%,which might be a new population of Stenotrophomonas sp.A new compound B which might be of polyether type was found in the metabolite of S.sp.CSDX252.The molecular formula was C47H78O14,and the yield was high.Consequently,2 1 strains in the 3 1 isolated strains could be treated as novel antibiotic agents and made further study,development and utilization on them.