微生物学杂志
微生物學雜誌
미생물학잡지
Journal of Microbiology
2015年
5期
73-78
,共6页
潘田扬%殷照青%李仙杰%韦然%管清莹%蒋欢%张汉波
潘田颺%慇照青%李仙傑%韋然%管清瑩%蔣歡%張漢波
반전양%은조청%리선걸%위연%관청형%장환%장한파
紫茎泽兰%入侵植物%内生真菌多样性%过夜冰冻组织法( ONFIT)%麦芽汁琼脂平板培养法( MEA)
紫莖澤蘭%入侵植物%內生真菌多樣性%過夜冰凍組織法( ONFIT)%麥芽汁瓊脂平闆培養法( MEA)
자경택란%입침식물%내생진균다양성%과야빙동조직법( ONFIT)%맥아즙경지평판배양법( MEA)
Eupatorium adenophorum%invasive plant%diversity of endophytic fungi%overnight freeze incubation tech-nique( ONFIT)%MEA method
外来入侵植物通常要和当地的生物发生相互关系并对当地生态系统产生影响。为表明叶内生真菌是否有利于紫茎泽兰( Eupatorium adenophorum)的入侵力,首次调查了其叶内生真菌多样性。利用过夜冰冻组织法和常规的麦芽汁琼脂平板培养法,分别于3、6月份从昆明西山、金殿种群分离得到312个菌株,根据其ITS基因差异,分为77个可操作分类单元( OTUs),系统发育地位分布在Agaricomycetes、Dothideomycetes、Sor-dariomycetes和 Pezizomycetes 4个纲。在低阶分类上这些真菌可分为19个属,优势属为链格孢属( Alternaria)(25.09%)和炭疽菌属( Colletotrichum)(10.80%)。有2.09%的菌株属于未知真菌。相比较,6月份的紫茎泽兰种群比3月份具有较高的内生真菌多样性。结果表明,入侵植物紫茎泽兰叶内生真菌非常丰富,这些真菌是否对紫茎泽兰的入侵力具有影响值得今后深入研究。
外來入侵植物通常要和噹地的生物髮生相互關繫併對噹地生態繫統產生影響。為錶明葉內生真菌是否有利于紫莖澤蘭( Eupatorium adenophorum)的入侵力,首次調查瞭其葉內生真菌多樣性。利用過夜冰凍組織法和常規的麥芽汁瓊脂平闆培養法,分彆于3、6月份從昆明西山、金殿種群分離得到312箇菌株,根據其ITS基因差異,分為77箇可操作分類單元( OTUs),繫統髮育地位分佈在Agaricomycetes、Dothideomycetes、Sor-dariomycetes和 Pezizomycetes 4箇綱。在低階分類上這些真菌可分為19箇屬,優勢屬為鏈格孢屬( Alternaria)(25.09%)和炭疽菌屬( Colletotrichum)(10.80%)。有2.09%的菌株屬于未知真菌。相比較,6月份的紫莖澤蘭種群比3月份具有較高的內生真菌多樣性。結果錶明,入侵植物紫莖澤蘭葉內生真菌非常豐富,這些真菌是否對紫莖澤蘭的入侵力具有影響值得今後深入研究。
외래입침식물통상요화당지적생물발생상호관계병대당지생태계통산생영향。위표명협내생진균시부유리우자경택란( Eupatorium adenophorum)적입침력,수차조사료기협내생진균다양성。이용과야빙동조직법화상규적맥아즙경지평판배양법,분별우3、6월빈종곤명서산、금전충군분리득도312개균주,근거기ITS기인차이,분위77개가조작분류단원( OTUs),계통발육지위분포재Agaricomycetes、Dothideomycetes、Sor-dariomycetes화 Pezizomycetes 4개강。재저계분류상저사진균가분위19개속,우세속위련격포속( Alternaria)(25.09%)화탄저균속( Colletotrichum)(10.80%)。유2.09%적균주속우미지진균。상비교,6월빈적자경택란충군비3월빈구유교고적내생진균다양성。결과표명,입침식물자경택란협내생진균비상봉부,저사진균시부대자경택란적입침력구유영향치득금후심입연구。
Anexoticinvasiveplantusuallyhasmutualrelationwithlocalorganismsandtheywillaffectlocaleco-sys-tem. In order to show whether the foliar endophytic fungi( FEF)of purpurstem Eupatorium( PE)conduce to the in-vasion,the diversity of FEF of PE was investigated for the first time in this study. Fresh and healthy leaves of PE pop-ulations from Mt. Xishan and Golden Temple were collected in March and June,and a total of 312 fungal strains were isolated using routine MEA( malt-extract agar)and ONFIT( overnight freeze incubation technique). Based on the differences of ITS gene,these fungi were divided into 77 operational taxonomic units( OTUs),phylogenetically be-longing to the Class of Agaricomycetes,Dothideomycetes,Sordariomycetes,and Pezizomycetes. At lower taxonomy level,they were divided into 19 genera,and the dominant fungi include Alternaria sp.(25. 09%)and Colletotrichum sp.(10. 80%). There were 2. 09% strains belonging to unknown fungi. Relatively,higher diversity of endophytes from PE was found in June than those in March. The results showed that FEF in invasive PE was rich,whether these fungi has any influences on the invasion of PE is worth to study deeper in the future.