Analysis of antimicrobial resistance and genetic correlations of Escherichia coli in dairy cow mastitis
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04 nov 2022
INFORMAZIONI SU QUESTO ARTICOLO
Pubblicato online: 04 nov 2022
Pagine: 571 - 579
Ricevuto: 23 mar 2022
Accettato: 28 set 2022
DOI: https://doi.org/10.2478/jvetres-2022-0055
Parole chiave
© 2022 K. Li et al. published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Fig. 1

Fig. 2

Pearson’s correlation coefficients (r) of resistance genes and corresponding antibiotics
Resistance gene | Antimicrobials |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AMP | AMX | CRO | CFZ | GEN | STR | NER | AMI | EM | DOX | SXT | CIP | ENR | |
0.231 | 0.317 | 0.333 | 0.053 | - | - | - | - | - | - | - | - | - | |
−0.114 | 0.248 | 0.124 | −0.059 | - | - | - | - | - | - | - | - | - | |
- | - | - | - | −0.27 3 | −0.12 5 | −0.083 | 0.035 | - | - | - | - | - | |
- | - | - | - | 0.331 | 0.035 | 0.281 | −0.053 | - | - | - | - | - | |
- | - | - | - | 0.427 | 0.353 | 0.105 | −0.059 | - | - | - | - | - | |
- | - | - | - | - | - | - | - | −0.04 7 | - | - | - | - | |
- | - | - | - | - | - | - | - | - | −0.156 | - | - | - | |
- | - | - | - | - | - | - | - | - | −0.347 | - | - | - | |
- | - | - | - | - | - | - | - | - | - | - 0.174 | - | - | |
- | - | - | - | - | - | - | - | - | - | - 0.343 | - | - | |
- | - | - | - | - | - | - | - | - | - | - | −0.106 | 0.035 |
Susceptibility of 40 E_ coli strains to 13 antibiotics commonly used in China
Antibiotic | Distribution of |
Decision criteria/Diameter of inhibitory zone (mm) | ||||
---|---|---|---|---|---|---|
R1 | I | S | R | I | S | |
Ampicillin | 21/52.5% | 6/15.0% | 13/32.5% | ≤13 | 14–16 | ≥17 |
Amoxicillin | 18/45.0% | 3/7.5% | 19/47.5% | ≤13 | 14–17 | ≥18 |
Ceftriaxone | 19/47.5% | 1/2.5% | 20/50.0% | ≤19 | 20–23 | ≥24 |
Cefazolin | 31/77.5% | 8/20.0% | 1/2.5% | ≤19 | 20–22 | ≥23 |
Gentamicin | 13/32.5% | 0 | 27/67.5% | ≤12 | 13–14 | ≥15 |
Streptomycin | 12/30.0% | 5/12.5% | 23/57.5% | ≤11 | 12–14 | ≥15 |
Neomycin | 1/2.5% | 15/37.5% | 24/60.0% | ≤11 | 12–16 | ≥17 |
Amikacin | 1/2.5% | 1/2.5% | 38/95.0% | ≤14 | 15–16 | ≥17 |
Erythromycin | 17/42.5% | 21/52.5% | 2/5.0% | ≤13 | 14–22 | ≥23 |
Doxycycline | 14/35.0% | 5/12.5% | 21/52.5% | ≤10 | 11–13 | ≥14 |
Trimethoprim- sulfamethoxazole | 22/55.0% | 0 | 18/45.0% | ≤12 | 13–16 | ≥17 |
Ciprofloxacin | 7/17.5% | 0 | 33/82.5% | ≤15 | 16–20 | ≥21 |
Enrofloxacin | 6/5.0% | 11/27.5% | 23/57.5% | ≤15 | 16–23 | ≥24 |
Primer sequences, product sizes, annealing temperature and references used for the PCR in the study
Gene | Primer sequence (5′–3′) | Product size (bp) | Annealing temperature (℃) | Reference or GenBank accession no. |
---|---|---|---|---|
ATAAAATTCTTGAAGACGAAA GACAGTTACCAATGCTTAATC | 643 | 53 | ( |
|
TTTGTCGCTTCTTTACTCGCCTTTA GCCAGATCCATTTCTATCATGCCTA | 198 | 56 | DQ247972 | |
TCAACTTTCAAGATCGCA GTGTGTTTAGAATGGTGA | 591 | 53 | ( |
|
ACTGTGATGGGATACGCGTC CTCCGTCAGCGTTTCAGCTA | 482 | 54 | ( |
|
CTTCAGGATGGCAAGTTGGT TCATCTCGTTCTCCGCTCAT | 286 | 55 | ( |
|
CTGGAGGTCACTGTCGTGC CCGTGGATTGCCAAAGGTC | 274 | 55 | X68089 | |
AAAACTTACCCGCCATACCA TTTGGCGTGTTTCATTGCTT | 126 | 53 | MN461246 | |
GCTCGTGTCATTTCTGGGAGT AGCCTAGCAGCCATTTCTATC | 375 | 53 | GQ483470 | |
CGGAGCAGAAACAAGAAAGCG GGATCAGGACCGGATACACCAT | 345 | 57 | ( |
|
CATTAATAGGCGCATCGCTG TGAAGGTCATCGATAGCAGG | 391 | 53 | ( |
|
GCCTGGAACTGCTGCTGATGC TCGCCTGCCAAACCGAACTCT | 314 | 59 | ( |
|
GCGCTCAAGGCAGATGGCATT GCGTTTGATACCGGCACCCGT | 793 | 57 | ( |
|
GATCGTGAAAGCCAGAAAGG ACGATGCCTGGTAGTTGTCC | 513 | 55 | ( |
|
ATTCTGCTTGGCGCTCCGGG CCGTCAACTTTCGCGTATTT | 583 | 54 | ( |
|
TCACAGGTCGCCAGCGCTTC GTACGCAGCGAAAAAGATTC | 806 | 54 | ( |
|
TCGGCGACACGGATGACGGC ATCAGGCCTTCACGCGCATC | 911 | 60 | ( |
|
ATGGAAAGTAAAGTAGTTGTTCCGGCACA GGACGCAGCAGGATCTGTT | 878 | 54 | ( |
|
ATGAAAGTCGCAGTCCTCGGCGCTGCTGGCGG TTAACGAACTCCTGCCCCAGAGCGATATCTTTCTT | 932 | 60 | ( |
|
CGCGCTGATGAAAGAGATGA CATACGGTAAGCCACGCAGA | 816 | 54 | ( |
|
CGCATTCGCTTTACCCTGACC TCGTCGAAATCTACGGACCGGA | 780 | 58 | ( |
Sequence types, resistance phenotypes and resistance genes in 40 E_ coli strains
ID | Location | MLST | Resistance phenotypes | Resistance genes |
---|---|---|---|---|
1 | Xushui | ST10 | AMP-AMX-CRO-CFZ-GEN-STR-EM-DOX-SXT-ENR | |
2 | Xushui | ST10 | AMP-AMX-CRO-CFZ-GEN-STR-NER-EM-DOX-SXT-CIP-ENR | |
3 | Xushui | ST359 | AMP-AMX-CRO-CFZ-GEN-STR-NER-EM-DOX-SXT-CIP-ENR | |
4 | Xushui | ST10 | CFZ-EM | |
5 | Xushui | ST10 | AMP-AMX-CRO-CFZ-STR-NER-EM-DOX-SXT-CIP-ENR | |
6 | Xushui | ST1585 | AMP-AMX-CRO-CFZ-GEN-STR-NER-EM-DOX-SXT-CIP-ENR | |
7 | Xushui | ST359 | AMP-AMX-CRO-CFZ-GEN-STR-NER-AMI-EM-DOX-SXT-CIP-ENR | |
8 | Xushui | ST359 | AMP-AMX-CRO-CFZ-GEN-NER-EM-DOX-SXT-ENR | |
9 | Xushui | ST359 | AMP-AMX-CRO-CFZ-GEN-STR-EM-DOX-SXT-CIP-ENR | |
10 | Xushui | ST10 | CFZ-EM | |
11 | Xushui | ST10 | CFZ-EM | |
12 | Xushui | ST359 | AMP-AMX-CRO-CFZ-GEN-NER-EM-SXT-ENR | |
13 | Xushui | ST1125 | AMP-AMX-CRO-CFZ-STR-SXT | |
14 | Xushui | ST1585 | AMP-AMX-CRO-CFZ-EM-DOX-SXT-ENR | |
15 | Xushui | ST327 | AMP-AMX-CRO-CFZ-EM-DOX-ENR | |
16 | Xushui | ST937 | AMP-AMX-CRO-CFZ-STR-EM-SXT-ENR | |
17 | Qingyuan | ST10717 | AMP-CFZ-STR-NER-EM-DOX-SXT | |
18 | Qingyuan | ST942 | CFZ-NER-EM-DOX | |
19 | Qingyuan | ST446 | AMP-CFZ-GEN-STR-NER-EM-DOX-SXT | |
20 | Qingyuan | ST1310 | AMP-AMX-CRO-CFZ-GEN-STR-NER-AMI-EM | |
21 | Qingyuan | ST515 | AMP-AMX-CRO-CFZ-STR-EM-DOX-SXT-ENR | |
22 | Qingyuan | ST48 | AMP-CFZ-NER-EM | |
23 | Qingyuan | ST10 | CFZ-NER-EM | |
24 | Quyang | ST1252 | AMP-AMX-CRO-CFZ-STR-EM-SXT-ENR | |
25 | Quyang | ST1079 | AMP-CFZ-EM | |
26 | Quyang | ST154 | CFZ | |
27 | Quyang | ST1585 | AMP-AMX-CRO-CFZ-GEN-STR-NER-EM-DOX-SXT-CIP-ENR | |
28 | Quyang | ST1167 | AMP-AMX-CRO-CFZ-STR-NER-EM-DOX-SXT | |
29 | Mancheng | ST1610 | AMP-CFZ-EM | |
30 | Mancheng | ST10 | NER-EM | |
31 | Mancheng | ST2741 | CFZ-EM | |
32 | Mancheng | ST2741 | CFZ-EM | |
33 | Mancheng | ST48 | AMP-CFZ-GEN-STR-EM-DOX-SXT-ENR | |
34 | Mancheng | ST10 | AMP-AMX-CRO-CFZ-EM-DOX-SXT-ENR | |
35 | Mancheng | ST906 | AMP-AMX-CRO-CFZ-EM-SXT | |
36 | Mancheng | ST48 | CFZ-EM | |
37 | Mancheng | ST48 | CFZ-EM | |
38 | Mancheng | ST48 | CFZ-EM | |
39 | Mancheng | ST906 | CFZ-EM | |
40 | Mancheng | ST48 | AMP-AMX-CFZ-GEN-EM-DOX-SXT |