噬藻體PP的時(shí)空分布研究.pdf

1、華中師范大學(xué)碩士學(xué)位論文噬藻體PP的時(shí)空分布研究姓名：鄧鳳霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：微生物學(xué)指導(dǎo)教師：趙以軍20060501⑧碩士聿強(qiáng)論炙MASTEⅣS丁HESISAbstracthlvestigationwasc刪edouttostudythedist抽utionofcyaIlophagePPinseveraI￡reshwaterlakesofdifEbrenttropMcStatIls，Wealsoanalyzedmerelatio

2、nsllipbetweentlledis【ribuⅡ0Ⅱofcyan叩hagePPandseveralenViID衄entalfacloISWbalsostudiedtlledyllaIIlicsofdaily廿ternuctIlationofcy柚ophagePPbymamematicmodelThe潞Illtsare硒foⅡow：cyanophagePPwidelydistributedinmesotrophjcaⅡdeutroph

3、iclakes(egDonghulal【eofwuhan)，butwasnotobseⅣedjnoliotmphic1ake(egLjangzjlal(eofwuhan)’remporately，cyanophagePPtendedtoexistinwamseasons：nstiterwouldreachitsmaximuminSeptembeLandwasalmostzeroinwinteLseveralenvironmentalfa

4、ctorscouldinnuencethedistributionofcyanophageP舢thou曲theIewasnosignificantcorrelationbetweentropllicstatusandmetitcrofcyanophagePP，thereexistedasignificantpos“ivecoⅡelationbetweenthet“erofcyanophagePPandChlaconcentrationT

5、Ileresultimpliesthat咖phicstatusmayinnuencethedistributionofcyanophagePPbyinfluencingtheliVingconditioⅡofthehostcell，ramermanbyiIlfluencingthedensityofthehostcell111fact，ourdatapr0VedthataltllougllthereexjstedathreshoIdco

6、ncentratjonofhostcellforthemaintcnaIlceofcyanophagePP’spopulation，therewasn0sigIlifjcantcoⅡelati0ⅡbetweenthetiterofcyanophagePPaIlditshost’scelldensityInIheyea卜mundinvest培ation，wealsofoundoutthatthedensityofhostcellwasmu

7、chgreaterthanthetiterofcyanophagePP，whichwasunusualtootherreportedPHSandneededtobestudiedfUrtherTheresultOfanalysisonthedailynuctuationofcyallophagePPindicatedthatalthoughthetiter鏟eatlychangedinaday’ittendedtecoveritsori

8、ginalValueattheendofthedayByestablishingamathcmaticmodel，wefoundomthattherewereatleasttwokeyfactorsthatmaycontributetothephenomenaonewasthatthePHSworkeddifferently舶mdaytonjghtTheotheristhatcyallophagePPwashyper—sens“ivet

9、otheUVcomponentsofsllnradiatjon(IhedecayrateofcyanophagePPbysllllradiationwouldbeashi曲asO62h“)Abovea11，itwassuggestedthatsunradiationcaIlbefhekeyfactortoinfluencethefIuctuationofcyanophagePP’stiteLKeywords：cyanophagePP；t