中国农业科技导报 ›› 2023, Vol. 25 ›› Issue (11): 123-131.DOI: 10.13304/j.nykjdb.2022.0268
• 动植物健康 • 上一篇
李宏博1(), 陈月月2, 杨玉洁1, 徐琦琦1, 秦蕾1, 蔡鑫1, 夏利宁1(
)
收稿日期:
2022-04-05
接受日期:
2022-08-29
出版日期:
2023-11-15
发布日期:
2023-11-20
通讯作者:
夏利宁
作者简介:
李宏博 E-mail:1518957065@qq.com;
基金资助:
Hongbo LI1(), Yueyue CHEN2, Yujie YANG1, Qiqi XU1, Lei QIN1, Xin CAI1, Lining XIA1(
)
Received:
2022-04-05
Accepted:
2022-08-29
Online:
2023-11-15
Published:
2023-11-20
Contact:
Lining XIA
摘要:
为了解新疆伊犁昭苏地区鸡源大肠杆菌耐药性和耐药基因携带情况,并有针对性地指导用药,从伊犁昭苏克马克加尔村、森塔斯村、乌克勒加尔村3个村落采集300份鸡肛拭子样品,从中分离试验用大肠杆菌。利用琼脂稀释法测定其对6大类9种抗菌药物的耐药性,并利用PCR技术检测相应的耐药基因。结果表明,300份样品共分离大肠杆菌289株,森塔斯村、克马克加尔村和乌克勒加尔村的分离率分别为100.0%、97.0%和93.8%。药敏结果显示,289株大肠杆菌对氨苄西林、氟苯尼考、四环素的耐药率较高,分别为31.5%、26.0%、20.1%。不同村落之间耐药严重程度由高至低依次为森塔斯村、克马克加尔村、乌克勒加尔村,其中森塔斯村鸡源大肠杆菌对氨苄西林、头孢唑啉、氟苯尼考、恩诺沙星和硫酸粘菌素的耐药率分别为40.0%、35.0%、45.0%、40.0%和30.0%;乌克勒加尔村鸡源大肠杆菌对所有被检抗菌药物的耐药率均未超过20.0%。不同村落大肠杆菌耐药谱型丰富度不同,其中克马克加尔村鸡源大肠杆菌耐药谱型最多,有32种谱型,另2个村落的耐药谱型也超过10种。基因检测结果显示,3个村落共检出9种耐药基因,其中floR、tet(A)和blaTEM基因的检出率分别为25.6%、18.0%和18.0%。克马克加尔村鸡源大肠杆菌中检出blaTEM、blaCTX-M、floR、oqxA、oqxB、tet(A)、tet(M)、ant(3'')-Ⅰa、mcr-1共9种耐药基因;乌克勒加尔村鸡源大肠杆菌中检出blaTEM、blaCTX-M、floR、oqxA、oqxB、tet(A)共6种耐药基因;而森塔斯村鸡源大肠杆菌只检出tet(A)、floR、blaCTX-M和blaTEM共4种耐药基因。综上,新疆伊犁昭苏鸡源大肠杆菌的耐药率较高,耐药谱型丰富,在加强对抗菌药物使用监管的同时,应结合药敏试验结果对养殖场采取不同的用药方案。
中图分类号:
李宏博, 陈月月, 杨玉洁, 徐琦琦, 秦蕾, 蔡鑫, 夏利宁. 新疆伊犁昭苏健康鸡源大肠杆菌耐药性及耐药基因分析[J]. 中国农业科技导报, 2023, 25(11): 123-131.
Hongbo LI, Yueyue CHEN, Yujie YANG, Qiqi XU, Lei QIN, Xin CAI, Lining XIA. Drug Resistance and Genotype Analysis of Escherichia coli in Healthy Chickens from Zhaosu, Yili, Xinjiang[J]. Journal of Agricultural Science and Technology, 2023, 25(11): 123-131.
基因名称 | 引物序列 | 片段长度 | 退火温度 | 参考文献 |
---|---|---|---|---|
Gene name | Primer sequence (5’-3’) | Fragment length/bp | Annealing temperature/℃ | Reference |
blaTEM | F: CATTTCCGTGTCGCCCTTATTC | 800 | 56 | [ |
R: CGTTCATCCATAGTTGCCTGAC | ||||
blaCTX-M | F: TTTGCGATGTGCAGTACCAGTAA | 544 | 56 | [ |
R: CGATATCGTTGGTGGTGGCCATA | ||||
blaOXA | F: AAGAAACGCTACTCGCCTGC | 564 | 56 | [ |
R: CCACTCAACCCATCCTACCC | ||||
floR | F: CACGTTGAGCCTCTATAT | 868 | 55 | [ |
R: ATGCAGAAGTAGAACGCG | ||||
fexA | F: CTCTTCTGGACAGGCTGGAA | 332 | 57 | |
R: CCAGTTCCTGCTCCAAGGTA | ||||
fexB | F: ACTCGACACGCACGCTTAAT | 320 | 57 | |
R: CCTCCCCCAAGATACATTGC | ||||
pexA | F: CTTCCAGTTGAGAAGCGAGC | 320 | 59 | |
R: AGAAGCATACCCGTGAACATG | ||||
estDL136 | F: ATGCCGTTAAACCCCCATGTCGAAG | 933 | 55 | |
R: TCAAGCGACGTCTCTTTTAAGATT | ||||
qnrD | F: TTACGGGGAATAGAGTTA | 468 | 55 | [ |
R: AATCAGCCAAAGACCAAT | ||||
qnrS | F: GCAAGTTCATTGAACAGGGT | 619 | 55 | [ |
R: TCTAAACCGTCGAGTTCGGCG | ||||
oqxA | F: CTCGGCGCGATGATGCT | 392 | 68 | [ |
R: CCACTCTTCACGGGAGACGA | ||||
oqxB | F: TTCTCCCCCGGCGGGAAGTAC | 512 | 65 | [ |
R: CTCGGCCATTTTGGCGCGTA | ||||
tet(A) | F: GCGCCTTTCCTTTGGGTTCT | 831 | 53 | [ |
R: CCACCCGTTCCACGTTGTTA |
表1 引物序列及片段大小
Table 1 Length of fragment and primer sequence
基因名称 | 引物序列 | 片段长度 | 退火温度 | 参考文献 |
---|---|---|---|---|
Gene name | Primer sequence (5’-3’) | Fragment length/bp | Annealing temperature/℃ | Reference |
blaTEM | F: CATTTCCGTGTCGCCCTTATTC | 800 | 56 | [ |
R: CGTTCATCCATAGTTGCCTGAC | ||||
blaCTX-M | F: TTTGCGATGTGCAGTACCAGTAA | 544 | 56 | [ |
R: CGATATCGTTGGTGGTGGCCATA | ||||
blaOXA | F: AAGAAACGCTACTCGCCTGC | 564 | 56 | [ |
R: CCACTCAACCCATCCTACCC | ||||
floR | F: CACGTTGAGCCTCTATAT | 868 | 55 | [ |
R: ATGCAGAAGTAGAACGCG | ||||
fexA | F: CTCTTCTGGACAGGCTGGAA | 332 | 57 | |
R: CCAGTTCCTGCTCCAAGGTA | ||||
fexB | F: ACTCGACACGCACGCTTAAT | 320 | 57 | |
R: CCTCCCCCAAGATACATTGC | ||||
pexA | F: CTTCCAGTTGAGAAGCGAGC | 320 | 59 | |
R: AGAAGCATACCCGTGAACATG | ||||
estDL136 | F: ATGCCGTTAAACCCCCATGTCGAAG | 933 | 55 | |
R: TCAAGCGACGTCTCTTTTAAGATT | ||||
qnrD | F: TTACGGGGAATAGAGTTA | 468 | 55 | [ |
R: AATCAGCCAAAGACCAAT | ||||
qnrS | F: GCAAGTTCATTGAACAGGGT | 619 | 55 | [ |
R: TCTAAACCGTCGAGTTCGGCG | ||||
oqxA | F: CTCGGCGCGATGATGCT | 392 | 68 | [ |
R: CCACTCTTCACGGGAGACGA | ||||
oqxB | F: TTCTCCCCCGGCGGGAAGTAC | 512 | 65 | [ |
R: CTCGGCCATTTTGGCGCGTA | ||||
tet(A) | F: GCGCCTTTCCTTTGGGTTCT | 831 | 53 | [ |
R: CCACCCGTTCCACGTTGTTA |
基因名称 | 引物序列 | 片段长度 | 退火温度 | 参考文献 |
---|---|---|---|---|
Gene name | Primer sequences (5’-3’) | Fragment length/bp | Annealing temperature/℃ | Reference |
tet(B) | F: TTGGTTAGGGGCAAGTTTTG | 659 | 55 | [ |
R: GTAATGGGCCAATAACACCG | ||||
tet(M) | F: GTGTGACGAACTTTACCGAA | 501 | 46 | [ |
R: GCTTTGTATCTCCAAGAACAC | ||||
tet(K) | F: GTAGTGACAATAAACCTCCTA | 360 | 55 | [ |
R: CCAAGCATCGGCATCTCATA | ||||
acc(6')/aph-(2'') | F: CCAAGAGCAATAAGGGCATA | 220 | 55 | [ |
R: CACTATCATAACCACTACCG | ||||
aph(3')-Ⅲ | F: GCCGATGTGGATTGCGAAAA | 292 | 55 | |
R: GCTTGATCCCCAGTAAGTCA | ||||
ant(3'')-Ⅰa | F: ATCTGGCTATCTTGCTGACA | 284 | 54 | [ |
R: TATGACGGGCTGATACTGG | ||||
aac6'-Ⅰb | F: ATGACCTTGCGATGCTCTAGA | 486 | 54 | [ |
R: CGAATGCCTGGCGTGTTT | ||||
ant(4',4'') | F: GCAAGGACCGACAACATTTC | 165 | 55 | [ |
R: TGGCACAGATGGTCATAACC | ||||
mcr-1 | F: CGGTCAGTCCGTTTGTTC | 309 | 55 | [ |
R: CTTGGTCGGTCTGTAGGG |
表1 引物序列及片段大小 (续表Continued)
Table 1 Length of fragment and primer sequence
基因名称 | 引物序列 | 片段长度 | 退火温度 | 参考文献 |
---|---|---|---|---|
Gene name | Primer sequences (5’-3’) | Fragment length/bp | Annealing temperature/℃ | Reference |
tet(B) | F: TTGGTTAGGGGCAAGTTTTG | 659 | 55 | [ |
R: GTAATGGGCCAATAACACCG | ||||
tet(M) | F: GTGTGACGAACTTTACCGAA | 501 | 46 | [ |
R: GCTTTGTATCTCCAAGAACAC | ||||
tet(K) | F: GTAGTGACAATAAACCTCCTA | 360 | 55 | [ |
R: CCAAGCATCGGCATCTCATA | ||||
acc(6')/aph-(2'') | F: CCAAGAGCAATAAGGGCATA | 220 | 55 | [ |
R: CACTATCATAACCACTACCG | ||||
aph(3')-Ⅲ | F: GCCGATGTGGATTGCGAAAA | 292 | 55 | |
R: GCTTGATCCCCAGTAAGTCA | ||||
ant(3'')-Ⅰa | F: ATCTGGCTATCTTGCTGACA | 284 | 54 | [ |
R: TATGACGGGCTGATACTGG | ||||
aac6'-Ⅰb | F: ATGACCTTGCGATGCTCTAGA | 486 | 54 | [ |
R: CGAATGCCTGGCGTGTTT | ||||
ant(4',4'') | F: GCAAGGACCGACAACATTTC | 165 | 55 | [ |
R: TGGCACAGATGGTCATAACC | ||||
mcr-1 | F: CGGTCAGTCCGTTTGTTC | 309 | 55 | [ |
R: CTTGGTCGGTCTGTAGGG |
来源 Source | 样品数 Number of samples | 检出数 Number of isolates | 分离率 Isolation rate/% |
---|---|---|---|
克马克加尔村Kemakgar village | 200 | 194 | 97.0 |
森塔斯村 Sentas village | 20 | 20 | 100.0 |
乌克勒加尔村 Uklegar village | 80 | 75 | 93.8 |
总计 Total | 300 | 289 | 96.3 |
表2 伊犁昭苏县鸡源大肠杆菌的分离
Table 2 Isolation of Escherichia coli from chicken in Zhaosu, Yili
来源 Source | 样品数 Number of samples | 检出数 Number of isolates | 分离率 Isolation rate/% |
---|---|---|---|
克马克加尔村Kemakgar village | 200 | 194 | 97.0 |
森塔斯村 Sentas village | 20 | 20 | 100.0 |
乌克勒加尔村 Uklegar village | 80 | 75 | 93.8 |
总计 Total | 300 | 289 | 96.3 |
抗菌药物 Antibiotics | 耐药率 Resistance rate/% | |||
---|---|---|---|---|
克马克加尔村 Kemakgar village | 森塔斯村 Sentas village | 乌克勒加尔村 Uklegar village | 总计 Total | |
氨苄西林AMP | 37.6 Bb | 40.0 Aa | 13.3 Cc | 31.5 |
头孢唑啉CFZ | 21.6 Bb | 35.0 Aa | 8.0 Cc | 19.0 |
头孢噻呋TIO | 11.3 Ab | 20.0 Aa | 4.0 Ac | 10.4 |
氟苯尼考FFC | 27.8 Ab | 45.0 Aa | 16.0 Ac | 26.0 |
四环素TET | 25.8 Aa | 5.0 Cc | 9.3 Bb | 20.1 |
恩诺沙星ENR | 14.9 Bb | 40.0 Aa | 2.7 Cc | 13.5 |
庆大霉素GEN | 1.7 Ab | 10.0 Aa | 0.0 Ac | 2.4 |
阿米卡星AMK | 0.0 | 0.0 | 0.0 | 0.0 |
硫酸粘菌素COL | 6.2 Bb | 30.0 Aa | 0.0 Cc | 6.2 |
表3 大肠杆菌对10种抗菌药物的耐药率
Table 3 Resistant rate of Escherichia coli on ten kinds of antimicrobial agents
抗菌药物 Antibiotics | 耐药率 Resistance rate/% | |||
---|---|---|---|---|
克马克加尔村 Kemakgar village | 森塔斯村 Sentas village | 乌克勒加尔村 Uklegar village | 总计 Total | |
氨苄西林AMP | 37.6 Bb | 40.0 Aa | 13.3 Cc | 31.5 |
头孢唑啉CFZ | 21.6 Bb | 35.0 Aa | 8.0 Cc | 19.0 |
头孢噻呋TIO | 11.3 Ab | 20.0 Aa | 4.0 Ac | 10.4 |
氟苯尼考FFC | 27.8 Ab | 45.0 Aa | 16.0 Ac | 26.0 |
四环素TET | 25.8 Aa | 5.0 Cc | 9.3 Bb | 20.1 |
恩诺沙星ENR | 14.9 Bb | 40.0 Aa | 2.7 Cc | 13.5 |
庆大霉素GEN | 1.7 Ab | 10.0 Aa | 0.0 Ac | 2.4 |
阿米卡星AMK | 0.0 | 0.0 | 0.0 | 0.0 |
硫酸粘菌素COL | 6.2 Bb | 30.0 Aa | 0.0 Cc | 6.2 |
来源 Source | 百分比Percentage/% | |||||||
---|---|---|---|---|---|---|---|---|
1耐 1 resistance | 2耐 2 resistance | 3耐 3 resistance | 4耐 4 resistance | 5耐 5 resistance | 6耐 6 resistance | 7耐 7 resistance | 合计 Total | |
克马克加尔村 Kemakgar village | 42.6 | 25.4 | 12.3 | 4.1 | 7.4 | 5.7 | 2.5 | 62.9 |
森塔斯村 Sentas village | 0.0 | 35.7 | 21.4 | 14.3 | 21.4 | 7.1 | 0.0 | 70.0 |
乌克勒加尔村 Uklegar village | 45.0 | 30.0 | 5.0 | 20.0 | 0.0 | 0.0 | 0.0 | 26.6 |
合计 Total | 39.1 | 26.9 | 12.2 | 7.1 | 7.7 | 5.1 | 1.9 | 54.0 |
表4 大肠杆菌的耐药谱型
Table 4 Multidrug resistant condition of Escherichia coli
来源 Source | 百分比Percentage/% | |||||||
---|---|---|---|---|---|---|---|---|
1耐 1 resistance | 2耐 2 resistance | 3耐 3 resistance | 4耐 4 resistance | 5耐 5 resistance | 6耐 6 resistance | 7耐 7 resistance | 合计 Total | |
克马克加尔村 Kemakgar village | 42.6 | 25.4 | 12.3 | 4.1 | 7.4 | 5.7 | 2.5 | 62.9 |
森塔斯村 Sentas village | 0.0 | 35.7 | 21.4 | 14.3 | 21.4 | 7.1 | 0.0 | 70.0 |
乌克勒加尔村 Uklegar village | 45.0 | 30.0 | 5.0 | 20.0 | 0.0 | 0.0 | 0.0 | 26.6 |
合计 Total | 39.1 | 26.9 | 12.2 | 7.1 | 7.7 | 5.1 | 1.9 | 54.0 |
基因 Gene | 检出率Detection rate/% | |||
---|---|---|---|---|
克马克加尔村 Kemakgar village | 森塔斯村 Sentas village | 乌克勒加尔村 Uklegar village | 总计 Total | |
blaTEM | 22.7 Aa | 20.0 Aa | 5.3 Bb | 18.0 |
blaCTX-M | 7.7 Aa | 15.0 Aa | 6.7 Aa | 8.0 |
floR | 25.8 Aa | 50.0 Aa | 18.7 Aa | 25.6 |
oqxA | 3.1 Aa | 0.0 Aa | 1.3 Aa | 2.4 |
oqxB | 2.6 Aa | 0.0 Aa | 2.7 Aa | 2.4 |
tet(A) | 21.1 Aa | 20.0 Aa | 9.3 Aa | 18.0 |
tet(M) | 1.0 Aa | 0.0 Aa | 0.0 Aa | 0.7 |
ant(3″)-Ⅰa | 1.0 Aa | 0.0 Aa | 0.0 Aa | 0.7 |
mcr-1 | 0.5 Aa | 0.0 Aa | 0.0 Aa | 0.3 |
表5 大肠杆菌耐药基因的检出率
Table 5 Detection rate of drug resistance genes in Escherichia coli
基因 Gene | 检出率Detection rate/% | |||
---|---|---|---|---|
克马克加尔村 Kemakgar village | 森塔斯村 Sentas village | 乌克勒加尔村 Uklegar village | 总计 Total | |
blaTEM | 22.7 Aa | 20.0 Aa | 5.3 Bb | 18.0 |
blaCTX-M | 7.7 Aa | 15.0 Aa | 6.7 Aa | 8.0 |
floR | 25.8 Aa | 50.0 Aa | 18.7 Aa | 25.6 |
oqxA | 3.1 Aa | 0.0 Aa | 1.3 Aa | 2.4 |
oqxB | 2.6 Aa | 0.0 Aa | 2.7 Aa | 2.4 |
tet(A) | 21.1 Aa | 20.0 Aa | 9.3 Aa | 18.0 |
tet(M) | 1.0 Aa | 0.0 Aa | 0.0 Aa | 0.7 |
ant(3″)-Ⅰa | 1.0 Aa | 0.0 Aa | 0.0 Aa | 0.7 |
mcr-1 | 0.5 Aa | 0.0 Aa | 0.0 Aa | 0.3 |
耐药基因 Drug resistance gene | 耐药基因检出率 Detection rate of drug resistance gene/% | 耐药率/% Drug resistance rate/% | 耐药种类 Type of drug resistance |
---|---|---|---|
blaTEM blaCTX-M blaTEM+blaCTX-M | 9.3 | 36.0 | β-内酰胺类 β-lactams |
floR | 25.6 | 26.0 | 酰胺醇类 Amide alcohols |
tet(A) tet(M) | 18.7 | 20.1 | 四环素类 Tetracyclines |
oqxa oqxb oqxa+oqxb | 2.8 | 13.8 | 喹诺酮类 Quinolones |
ant(3'')-Ⅰa | 0.7 | 2.4 | 氨基糖苷类 Aminoglycosides |
mcr-1 | 0.3 | 6.2 | 多肽类 Polypeptides |
表6 耐药基因检出率与耐药表型结果对比
Table 6 Comparison of detection rate of drug resistance gene and drug resistance phenotype
耐药基因 Drug resistance gene | 耐药基因检出率 Detection rate of drug resistance gene/% | 耐药率/% Drug resistance rate/% | 耐药种类 Type of drug resistance |
---|---|---|---|
blaTEM blaCTX-M blaTEM+blaCTX-M | 9.3 | 36.0 | β-内酰胺类 β-lactams |
floR | 25.6 | 26.0 | 酰胺醇类 Amide alcohols |
tet(A) tet(M) | 18.7 | 20.1 | 四环素类 Tetracyclines |
oqxa oqxb oqxa+oqxb | 2.8 | 13.8 | 喹诺酮类 Quinolones |
ant(3'')-Ⅰa | 0.7 | 2.4 | 氨基糖苷类 Aminoglycosides |
mcr-1 | 0.3 | 6.2 | 多肽类 Polypeptides |
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