?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=TOKSISITAS+METABOLIT+SEKUNDER+ISOLAT+STREPTOMYCES+SP.%0D%0ASTRAIN+AB8+DAN+SERRATIA+MARCESCENS+STRAIN+MBC1%0D%0ATERHADAP+KEMATIAN+LARVA+ANOPHELES+SP.&rft.creator=MESY+MIRANDA+AR+%2C+NPM+1717021002&rft.subject=570+Biologi&rft.description=ABSTRAK%0D%0A%0D%0ATOKSISITAS+METABOLIT+SEKUNDER+ISOLAT+STREPTOMYCES+SP.%0D%0ASTRAIN+AB8+DAN+SERRATIA+MARCESCENS+STRAIN+MBC1%0D%0ATERHADAP+KEMATIAN+LARVA+ANOPHELES+SP.%0D%0A%0D%0AOleh%0D%0AMesy+Miranda+AR%0D%0A%0D%0AMalaria+merupakan+penyakit+yang+disebabkan+oleh+parasit+Plasmodium+melalui%0D%0Aperantara+vektor+nyamuk+Anopheles+sp.+betina.+Upaya+dalam+mengurangi+kasus%0D%0Amalaria+ialah+dengan+cara+pengendalian+vektor+menggunakan+mikroorganisme.%0D%0AStreptomyces+sp.+dan+Serratia+marcescens+adalah+kandidat+mikroorganisme+yang%0D%0Amemiliki+potensi+dijadikan+sebagai+larvasida.+Tujuan+penelitian+ini+adalah+untuk%0D%0Amengetahui+pengaruh+ekstrak+metabolit+sekunder+Streptomyces+sp.+strain+AB8+dan%0D%0AS.+marcescens+strain+MBC1+pada+berbagai+konsentrasi+(125%2C+250%2C+500%2C+1000+ppm)%0D%0Adan+nilai+toksisitas+ekstrak+metabolit+sekunder+Streptomyces+sp.+strain+AB8+dan+S.%0D%0Amarcescens+strain+MBC1+sebagai+larvasida+Anopheles+sp..+Penelitian+dilakukan%0D%0Asecara+eksperimental+dengan+rancangan+penelitian+Faktorial+Blok+(2x6)+terdiri+dari%0D%0Adua+faktor+yaitu+2+jenis+bakteri+dan+6+perlakuan.+Konsentrasi+yang+digunakan+yaitu%0D%0A125%2C+250%2C+500%2C+dan+1.000+ppm+ekstrak+metabolit+sekunder+Streptomyces+sp.+strain%0D%0AAB8+dan+S.+marcescens+strain+MBC1+dengan+kontrol+positif+menggunakan+1+%25%0D%0ATemefos+(Abate)+serta+kontrol+negatif+menggunakan+air+yang+diperoleh+dari%0D%0Atempat+perindukan.+Setiap+perlakuan+diulang+sebanyak+4+kali+dan+setiap+unit%0D%0Apercobaan+membutuhkan+20+ekor+larva+Anopheles+sp.+instar+III.+Pengamatan%0D%0Aterhadap+jumlah+kematian+larva+selama+3-72+jam.+Data+dikoreksi+menggunakan%0D%0Arumus+Abbot%2C+kemudian+dianalisis+menggunakan+Analysis+of+Variance+(ANOVA)%0D%0Adengan+uji+lanjut+BNT%2C+%CE%B1+%3D+5%25+serta+analisis+probit+untuk+mengetahui+nilai+LC50%0D%0Adan+LC90.+Hasil+analisis+ANOVA+menunjukan+Ekstrak+metabolit+sekunder+S.%0D%0Amarcescens+strain+MBC1+pada+konsentrasi+250+dan+500+ppm+dan+Streptomyces+sp.%0D%0Astrain+AB8+pada+konsentrasi+1.000+ppm+memiliki+pengaruh+yang+sama%2C+sehingga%0D%0Alebih+baik+digunakan+Ekstrak+S.+marcescens+strain+MBC1+dengan+konsentrasi+250%0D%0Appm.+Hasil+analisis+probit+diketahui+ekstrak+S.+marcescens+strain+MBC1+memiliki%0D%0Adaya+toksik+yang+lebih+tinggi+pada+nilai+LC50+(1%2C304+ppm)+dan+LC90+(138%2C147%0D%0Appm)+dibandingkan+Streptomyces+sp.+strain+AB8+dengan+nilai+LC50+(327%2C806+ppm)%0D%0Adan+LC90+(654%2C328+ppm)%2C+sehingga+pada+penelitian+ini+ekstrak+S.+marcescens+strain%0D%0AMBC1+lebih+efektif+dijadikan+sebagai+larvasida+Anopheles+sp.+instar+III.%0D%0AKata+Kunci%3A+Larvasida%2C+Larva+Anopheles+sp.%2C+Malaria%2C+Serratia+marcescens%2C%0D%0A%0D%0AStreptomyces+sp.%0D%0A%0D%0Aiii%0D%0A%0D%0AABSTRACT%0D%0A%0D%0ATOXICITY+OF+SECONDARY+METABOLITES+OF+STREPTOMYCES+SP.%0D%0ASTRAIN+AB8+AND+SERRATIA+MARCESCENS+STRAIN+MBC1%0D%0A%0D%0AAGAINST+ANOPHELES+SP.%0D%0A%0D%0ABy%0D%0A%0D%0AMesy+Miranda+AR%0D%0A%0D%0AMalaria+is+a+disease+caused+by+the+Plasmodium+parasite+through+the+Anopheles+sp.%0D%0Afemale.+Efforts+to+reduce+malaria+cases+are+vector+control+using+microorganisms.%0D%0AStreptomyces+sp.+and+Serratia+marcescens+are+candidate+microorganisms+that+have%0D%0Athe+potential+to+be+used+as+larvicides.+The+purpose+of+this+study+was+to+determine%0D%0Athe+effect+of+the+secondary+metabolite+extract+of+Streptomyces+sp.+strains+AB8+and%0D%0AS.+marcescens+strain+MBC1+at+various+concentrations+(125%2C+250%2C+500%2C+1000+ppm)%0D%0Aand+the+toxicity+value+of+the+secondary+metabolite+extract+of+Streptomyces+sp.%0D%0Astrain+AB8+and+S.+marcescens+strain+MBC1+as+larvicides+of+Anopheles+sp.+The%0D%0Aconcentrations+used+were+125%2C+250%2C+500%2C+and+1%2C000+ppm+secondary+metabolite%0D%0Aextract+of+Streptomyces+sp.+strain+AB8+and+S.+marcescens+strain+MBC1+with%0D%0Apositive+control+using+1%25+Temefos+(Abate)+and+negative+control+using+water%0D%0Aobtained+from+the+broodstock.+Each+treatment+was+repeated+4+times+and+each%0D%0Aexperimental+unit+required+20+larvae+of+Anopheles+sp.+instar+III.+Observation+of%0D%0Athe+number+of+larval+deaths+for+3-72+hours.+The+data+were+corrected+using+Abbot's%0D%0Aformula%2C+then+analyzed+using+Analysis+of+Variance+(ANOVA)+with+further+test+of%0D%0ABNT%2C+%3D+5%25+and+probit+analysis+to+determine+the+values+of+LC50+and+LC90.+The%0D%0Aresults+of+ANOVA+analysis+showed+that+the+secondary+metabolite+extract+of+S.%0D%0Amarcescens+strain+MBC1+at+concentrations+of+250+and+500+ppm+and+Streptomyces%0D%0Asp.+strain+AB8+at+a+concentration+of+1%2C000+ppm+had+the+same+effect%2C+so+it+is+better%0D%0Ato+use+the+extract+of+S.+marcescens+strain+MBC1+with+a+concentration+of+250+ppm.%0D%0AThe+results+of+probit+analysis+showed+that+the+extract+of+S.+marcescens+strain%0D%0AMBC1+had+a+higher+toxicity+at+the+values+of+LC50+(1%2C304+ppm)+and+LC90+(138%2C147%0D%0Appm)+than+Streptomyces+sp.+strain+AB8+with+values+of+LC50+(327.806+ppm)+and%0D%0ALC90+(654.328+ppm)%2C+so+that+in+this+study+the+extract+of+S.+marcescens+strain%0D%0AMBC1+was+more+effective+as+a+larvacide+of+Anopheles+sp.+instar+III.%0D%0A%0D%0AKeywords%3A+Larvicides%2C+Anopheles+sp.+larvae%2C+Malaria%2C+Serratia+marcescens%2C%0D%0A%0D%0AStreptomyces+sp.&rft.publisher=FAKULTAS+MIPA&rft.date=2021&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F62135%2F2%2FABSTRAK%2520-%2520Mesy%2520Miranda%2520ar.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F62135%2F1%2FSKRIPSI%2520FULL%2520-%2520Mesy%2520Miranda%2520ar.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F62135%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN%2520-%2520Mesy%2520Miranda%2520ar.pdf&rft.identifier=++MESY+MIRANDA+AR+%2C+NPM+1717021002++(2021)+TOKSISITAS+METABOLIT+SEKUNDER+ISOLAT+STREPTOMYCES+SP.+STRAIN+AB8+DAN+SERRATIA+MARCESCENS+STRAIN+MBC1+TERHADAP+KEMATIAN+LARVA+ANOPHELES+SP.++FAKULTAS+MIPA%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F62135%2F