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Odpornost ocetnokislinskih bakterij proti izbranim antibiotikom in šibkim organskim kislinam : magistrsko deloKlanfar, LoraV okviru magistrskega dela smo pri 34 izbranih sevih ocetnokislinskih baterij iz rodov Komagataeibacter in Acetobacter preučevali odpornost proti naslednjim antibiotikom: ampicilinu, kloramfenikolu, ... ciprofloksacinu, eritromicinu, gentamicinu in trimetoprimu. Odpornost smo ocenili s pregledovanjem rasti okrog diskov, prepojenih z znanimi koncentracijami antibiotikov. Šest sevov je bilo odpornih proti vsem testiranim antibiotikom, 16 sevov proti petim antibiotikom, 11 sevov proti štirim antibiotikom in en sev proti trem antibiotikom. V nadaljevanju smo v genomskih sekvencah preiskanih referenčnih sevov poiskali gene, ki potencialno kodirajo proteine za odpornost proti testiranim antibiotikom. Pri tem smo uporabili bazo CARD s poznanimi geni za odpornost proti antibiotikom. Najpogostejša funkcija genov, ki smo jih identificirali, je bila črpalka za transport antibiotikov iz celice. Poleg odpornosti proti antibiotikom smo pri štirih sevih iz rodu Komagataeibacter in štirih sevih iz rodu Acetobacter preiskali tudi odpornost proti ocetni in citronski kislini s testiranjem sposobnosti rasti v tekočem gojišču v prisotnosti 1 % etanola in različnih koncentracij ene izmed obeh kislin. Najvišjo odpornost proti ocetni kislini (4,5 %) smo ugotovili pri sevu Acetobacter pomorum LMG 18848T in Acetobacter pasteurianus T6K1, najmanjšo (1,5 %) pa za sev Acetobacter aceti LMG 1504T. Največjo odpornost proti citronski kislini (3,5 %) smo ugotovili za sev Komagataeibacter sp. AV429, najmanjšo (0,69 %) pa za seve Acetobacter pomorum LMG 18848T, Acetobacter pasteurianus LMG 1262T in Acetobacter pasteurianus T6K1. Z namenom, da bi ugotovili stabilnost genoma seva Komagataeibacter sp. AV382 po precepljanju na gojišču RAE v prisotnosti 1 % etanola in 1 % ocetne kisline, smo po šestih mesecih precepljanja (dvakrat tedensko) po sekvencirali genom in ga primerjali z genomsko sekvenco tega seva pred precepljanjem. Z bioinformatskim orodjem MAUVE smo identificirali regijo, za katero se je zdelo, da se je prestavila, a z uporabljenimi začetnimi oligonukleotidi v reakciji PCR, tega nismo uspeli dokazati.Type of material - master's thesis ; adult, seriousPublication and manufacture - Maribor : [L. Klanfar], 2020Language - slovenianCOBISS.SI-ID - 24976387
Author
Klanfar, Lora
Other authors
Trček, Janja |
Škraban, Jure
Topics
magistrska dela |
ocetnokislinske bakterije |
odpornost proti antibiotikom |
odpornost proti šibkim organskim kislinam |
stabilnost genoma |
master theses |
acetic acid bacteria |
antibiotic resistance |
weak organic acid resistance |
genome stability
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Library | Call number – location, accession no. ... | Copy status |
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Miklošič Library FPNM, Maribor | D MAG 57/59 KLANFAR L. Odpornost IN: 920200034 |
available - reading room |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Klanfar, Lora | ![]() |
Trček, Janja | 14279 |
Škraban, Jure | 33271 |
Source: Personal bibliographies
and: SICRIS
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