CN109706257B - 一种快速检测奶牛子宫内膜炎中病原菌的方法 - Google Patents
一种快速检测奶牛子宫内膜炎中病原菌的方法 Download PDFInfo
- Publication number
- CN109706257B CN109706257B CN201910186379.2A CN201910186379A CN109706257B CN 109706257 B CN109706257 B CN 109706257B CN 201910186379 A CN201910186379 A CN 201910186379A CN 109706257 B CN109706257 B CN 109706257B
- Authority
- CN
- China
- Prior art keywords
- seq
- pathogenic bacteria
- gly
- pcr
- bacteria
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 208000004145 Endometritis Diseases 0.000 title claims abstract description 18
- 244000052616 bacterial pathogen Species 0.000 title claims abstract description 16
- 241000588770 Proteus mirabilis Species 0.000 claims abstract description 18
- 241000588724 Escherichia coli Species 0.000 claims abstract description 16
- 241000194054 Streptococcus uberis Species 0.000 claims abstract description 16
- 241000191967 Staphylococcus aureus Species 0.000 claims abstract description 15
- 241000589517 Pseudomonas aeruginosa Species 0.000 claims abstract description 14
- 230000001580 bacterial effect Effects 0.000 claims abstract description 13
- 108020004414 DNA Proteins 0.000 claims abstract description 11
- 229940115922 streptococcus uberis Drugs 0.000 claims abstract description 11
- 238000003384 imaging method Methods 0.000 claims abstract description 8
- 230000003321 amplification Effects 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 7
- 108020000946 Bacterial DNA Proteins 0.000 claims abstract description 5
- 239000011543 agarose gel Substances 0.000 claims abstract description 5
- 238000001502 gel electrophoresis Methods 0.000 claims abstract description 5
- 230000028327 secretion Effects 0.000 claims abstract description 4
- 239000008267 milk Substances 0.000 claims description 11
- 235000013336 milk Nutrition 0.000 claims description 11
- 210000004080 milk Anatomy 0.000 claims description 11
- 238000007403 mPCR Methods 0.000 claims description 10
- 241001337994 Cryptococcus <scale insect> Species 0.000 claims description 7
- 239000003153 chemical reaction reagent Substances 0.000 claims description 4
- 241000186064 Trueperella pyogenes Species 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 14
- 241000894006 Bacteria Species 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 238000003752 polymerase chain reaction Methods 0.000 abstract 1
- 238000012163 sequencing technique Methods 0.000 abstract 1
- 241000269331 Ambystoma Species 0.000 description 24
- 241000283690 Bos taurus Species 0.000 description 18
- 241000205573 Jeffersonia Species 0.000 description 12
- 239000004816 latex Substances 0.000 description 12
- 229920000126 latex Polymers 0.000 description 12
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 8
- HYKFOHGZGLOCAY-ZLUOBGJFSA-N Cys-Cys-Ala Chemical compound [H]N[C@@H](CS)C(=O)N[C@@H](CS)C(=O)N[C@@H](C)C(O)=O HYKFOHGZGLOCAY-ZLUOBGJFSA-N 0.000 description 6
- 201000010099 disease Diseases 0.000 description 6
- 238000001962 electrophoresis Methods 0.000 description 6
- VPZXBVLAVMBEQI-UHFFFAOYSA-N glycyl-DL-alpha-alanine Natural products OC(=O)C(C)NC(=O)CN VPZXBVLAVMBEQI-UHFFFAOYSA-N 0.000 description 6
- 239000013642 negative control Substances 0.000 description 6
- 108090000623 proteins and genes Proteins 0.000 description 6
- 108010061238 threonyl-glycine Proteins 0.000 description 6
- WNHNMKOFKCHKKD-BFHQHQDPSA-N Ala-Thr-Gly Chemical compound [H]N[C@@H](C)C(=O)N[C@@H]([C@@H](C)O)C(=O)NCC(O)=O WNHNMKOFKCHKKD-BFHQHQDPSA-N 0.000 description 5
- 235000013365 dairy product Nutrition 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- UQCNIMDPYICBTR-KYNKHSRBSA-N Thr-Thr-Gly Chemical compound [H]N[C@@H]([C@@H](C)O)C(=O)N[C@@H]([C@@H](C)O)C(=O)NCC(O)=O UQCNIMDPYICBTR-KYNKHSRBSA-N 0.000 description 4
- 108010047495 alanylglycine Proteins 0.000 description 4
- 238000000137 annealing Methods 0.000 description 4
- 239000003550 marker Substances 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- RLMISHABBKUNFO-WHFBIAKZSA-N Ala-Ala-Gly Chemical compound C[C@H](N)C(=O)N[C@@H](C)C(=O)NCC(O)=O RLMISHABBKUNFO-WHFBIAKZSA-N 0.000 description 3
- NMROINAYXCACKF-WHFBIAKZSA-N Gly-Cys-Cys Chemical compound NCC(=O)N[C@@H](CS)C(=O)N[C@@H](CS)C(O)=O NMROINAYXCACKF-WHFBIAKZSA-N 0.000 description 3
- 241001480238 Steinernema Species 0.000 description 3
- 108010076324 alanyl-glycyl-glycine Proteins 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000012165 high-throughput sequencing Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- VGPWRRFOPXVGOH-BYPYZUCNSA-N Ala-Gly-Gly Chemical compound C[C@H](N)C(=O)NCC(=O)NCC(O)=O VGPWRRFOPXVGOH-BYPYZUCNSA-N 0.000 description 2
- URDUGPGPLNXXES-WHFBIAKZSA-N Cys-Gly-Cys Chemical compound SC[C@H](N)C(=O)NCC(=O)N[C@@H](CS)C(O)=O URDUGPGPLNXXES-WHFBIAKZSA-N 0.000 description 2
- DZLQXIFVQFTFJY-BYPYZUCNSA-N Cys-Gly-Gly Chemical compound SC[C@H](N)C(=O)NCC(=O)NCC(O)=O DZLQXIFVQFTFJY-BYPYZUCNSA-N 0.000 description 2
- OXOQBEVULIBOSH-ZDLURKLDSA-N Cys-Gly-Thr Chemical compound [H]N[C@@H](CS)C(=O)NCC(=O)N[C@@H]([C@@H](C)O)C(O)=O OXOQBEVULIBOSH-ZDLURKLDSA-N 0.000 description 2
- 206010013801 Duchenne Muscular Dystrophy Diseases 0.000 description 2
- PYTZFYUXZZHOAD-WHFBIAKZSA-N Gly-Ala-Ala Chemical compound OC(=O)[C@H](C)NC(=O)[C@H](C)NC(=O)CN PYTZFYUXZZHOAD-WHFBIAKZSA-N 0.000 description 2
- QSDKBRMVXSWAQE-BFHQHQDPSA-N Gly-Ala-Thr Chemical compound C[C@@H](O)[C@@H](C(O)=O)NC(=O)[C@H](C)NC(=O)CN QSDKBRMVXSWAQE-BFHQHQDPSA-N 0.000 description 2
- CEXINUGNTZFNRY-BYPYZUCNSA-N Gly-Cys-Gly Chemical compound [NH3+]CC(=O)N[C@@H](CS)C(=O)NCC([O-])=O CEXINUGNTZFNRY-BYPYZUCNSA-N 0.000 description 2
- CCQOOWAONKGYKQ-BYPYZUCNSA-N Gly-Gly-Ala Chemical compound OC(=O)[C@H](C)NC(=O)CNC(=O)CN CCQOOWAONKGYKQ-BYPYZUCNSA-N 0.000 description 2
- 108010006464 Hemolysin Proteins Proteins 0.000 description 2
- 108010059724 Micrococcal Nuclease Proteins 0.000 description 2
- 108091000080 Phosphotransferase Proteins 0.000 description 2
- 102000013566 Plasminogen Human genes 0.000 description 2
- 108010051456 Plasminogen Proteins 0.000 description 2
- 101150090155 R gene Proteins 0.000 description 2
- TYVAWPFQYFPSBR-BFHQHQDPSA-N Thr-Ala-Gly Chemical compound [H]N[C@@H]([C@@H](C)O)C(=O)N[C@@H](C)C(=O)NCC(O)=O TYVAWPFQYFPSBR-BFHQHQDPSA-N 0.000 description 2
- 108010046334 Urease Proteins 0.000 description 2
- 108020002494 acetyltransferase Proteins 0.000 description 2
- 239000000427 antigen Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003935 denaturing gradient gel electrophoresis Methods 0.000 description 2
- 210000004696 endometrium Anatomy 0.000 description 2
- XKUKSGPZAADMRA-UHFFFAOYSA-N glycyl-glycyl-glycine Natural products NCC(=O)NCC(=O)NCC(O)=O XKUKSGPZAADMRA-UHFFFAOYSA-N 0.000 description 2
- 239000003228 hemolysin Substances 0.000 description 2
- 208000000509 infertility Diseases 0.000 description 2
- 230000036512 infertility Effects 0.000 description 2
- 231100000535 infertility Toxicity 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 244000000010 microbial pathogen Species 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000007481 next generation sequencing Methods 0.000 description 2
- 230000001717 pathogenic effect Effects 0.000 description 2
- 102000020233 phosphotransferase Human genes 0.000 description 2
- 239000013641 positive control Substances 0.000 description 2
- 238000003753 real-time PCR Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910021642 ultra pure water Inorganic materials 0.000 description 2
- 239000012498 ultrapure water Substances 0.000 description 2
- 101150017526 ureR gene Proteins 0.000 description 2
- 108700026215 vpr Genes Proteins 0.000 description 2
- 101150041873 ycjM gene Proteins 0.000 description 2
- UWQJHXKARZWDIJ-ZLUOBGJFSA-N Ala-Ala-Cys Chemical compound C[C@H](N)C(=O)N[C@@H](C)C(=O)N[C@@H](CS)C(O)=O UWQJHXKARZWDIJ-ZLUOBGJFSA-N 0.000 description 1
- JBVSSSZFNTXJDX-YTLHQDLWSA-N Ala-Ala-Thr Chemical compound C[C@@H](O)[C@@H](C(O)=O)NC(=O)[C@H](C)NC(=O)[C@H](C)N JBVSSSZFNTXJDX-YTLHQDLWSA-N 0.000 description 1
- KRHRBKYBJXMYBB-WHFBIAKZSA-N Ala-Cys-Gly Chemical compound C[C@H](N)C(=O)N[C@@H](CS)C(=O)NCC(O)=O KRHRBKYBJXMYBB-WHFBIAKZSA-N 0.000 description 1
- ZVFVBBGVOILKPO-WHFBIAKZSA-N Ala-Gly-Ala Chemical compound C[C@H](N)C(=O)NCC(=O)N[C@@H](C)C(O)=O ZVFVBBGVOILKPO-WHFBIAKZSA-N 0.000 description 1
- OBVSBEYOMDWLRJ-BFHQHQDPSA-N Ala-Gly-Thr Chemical compound C[C@@H](O)[C@@H](C(O)=O)NC(=O)CNC(=O)[C@H](C)N OBVSBEYOMDWLRJ-BFHQHQDPSA-N 0.000 description 1
- OEVCHROQUIVQFZ-YTLHQDLWSA-N Ala-Thr-Ala Chemical compound C[C@H](N)C(=O)N[C@@H]([C@H](O)C)C(=O)N[C@@H](C)C(O)=O OEVCHROQUIVQFZ-YTLHQDLWSA-N 0.000 description 1
- KUFVXLQLDHJVOG-SHGPDSBTSA-N Ala-Thr-Thr Chemical compound C[C@H]([C@@H](C(=O)N[C@@H]([C@@H](C)O)C(=O)O)NC(=O)[C@H](C)N)O KUFVXLQLDHJVOG-SHGPDSBTSA-N 0.000 description 1
- 241000193755 Bacillus cereus Species 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 241001657377 Cryptobacterium Species 0.000 description 1
- TVYMKYUSZSVOAG-ZLUOBGJFSA-N Cys-Ala-Ala Chemical compound [H]N[C@@H](CS)C(=O)N[C@@H](C)C(=O)N[C@@H](C)C(O)=O TVYMKYUSZSVOAG-ZLUOBGJFSA-N 0.000 description 1
- ZJBWJHQDOIMVLM-WHFBIAKZSA-N Cys-Cys-Gly Chemical compound SC[C@H](N)C(=O)N[C@@H](CS)C(=O)NCC(O)=O ZJBWJHQDOIMVLM-WHFBIAKZSA-N 0.000 description 1
- KOHBWQDSVCARMI-BWBBJGPYSA-N Cys-Cys-Thr Chemical compound [H]N[C@@H](CS)C(=O)N[C@@H](CS)C(=O)N[C@@H]([C@@H](C)O)C(O)=O KOHBWQDSVCARMI-BWBBJGPYSA-N 0.000 description 1
- CVLIHKBUPSFRQP-WHFBIAKZSA-N Cys-Gly-Ala Chemical compound [H]N[C@@H](CS)C(=O)NCC(=O)N[C@@H](C)C(O)=O CVLIHKBUPSFRQP-WHFBIAKZSA-N 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- GVVKYKCOFMMTKZ-WHFBIAKZSA-N Gly-Cys-Ala Chemical compound OC(=O)[C@H](C)NC(=O)[C@H](CS)NC(=O)CN GVVKYKCOFMMTKZ-WHFBIAKZSA-N 0.000 description 1
- FFJQHWKSGAWSTJ-BFHQHQDPSA-N Gly-Thr-Ala Chemical compound [H]NCC(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](C)C(O)=O FFJQHWKSGAWSTJ-BFHQHQDPSA-N 0.000 description 1
- ZKJZBRHRWKLVSJ-ZDLURKLDSA-N Gly-Thr-Cys Chemical compound C[C@H]([C@@H](C(=O)N[C@@H](CS)C(=O)O)NC(=O)CN)O ZKJZBRHRWKLVSJ-ZDLURKLDSA-N 0.000 description 1
- JQFILXICXLDTRR-FBCQKBJTSA-N Gly-Thr-Gly Chemical compound NCC(=O)N[C@@H]([C@H](O)C)C(=O)NCC(O)=O JQFILXICXLDTRR-FBCQKBJTSA-N 0.000 description 1
- TVTZEOHWHUVYCG-KYNKHSRBSA-N Gly-Thr-Thr Chemical compound [H]NCC(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H]([C@@H](C)O)C(O)=O TVTZEOHWHUVYCG-KYNKHSRBSA-N 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- ZUKPVRWZDMRIEO-VKHMYHEASA-N L-cysteinylglycine Chemical compound SC[C@H]([NH3+])C(=O)NCC([O-])=O ZUKPVRWZDMRIEO-VKHMYHEASA-N 0.000 description 1
- 108010079364 N-glycylalanine Proteins 0.000 description 1
- 108091028043 Nucleic acid sequence Proteins 0.000 description 1
- 241000191940 Staphylococcus Species 0.000 description 1
- 241000194017 Streptococcus Species 0.000 description 1
- 241000193985 Streptococcus agalactiae Species 0.000 description 1
- IGROJMCBGRFRGI-YTLHQDLWSA-N Thr-Ala-Ala Chemical compound C[C@@H](O)[C@H](N)C(=O)N[C@@H](C)C(=O)N[C@@H](C)C(O)=O IGROJMCBGRFRGI-YTLHQDLWSA-N 0.000 description 1
- YRNBANYVJJBGDI-VZFHVOOUSA-N Thr-Ala-Cys Chemical compound C[C@H]([C@@H](C(=O)N[C@@H](C)C(=O)N[C@@H](CS)C(=O)O)N)O YRNBANYVJJBGDI-VZFHVOOUSA-N 0.000 description 1
- DGOJNGCGEYOBKN-BWBBJGPYSA-N Thr-Cys-Cys Chemical compound C[C@H]([C@@H](C(=O)N[C@@H](CS)C(=O)N[C@@H](CS)C(=O)O)N)O DGOJNGCGEYOBKN-BWBBJGPYSA-N 0.000 description 1
- LYGKYFKSZTUXGZ-ZDLURKLDSA-N Thr-Cys-Gly Chemical compound [H]N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CS)C(=O)NCC(O)=O LYGKYFKSZTUXGZ-ZDLURKLDSA-N 0.000 description 1
- KBBRNEDOYWMIJP-KYNKHSRBSA-N Thr-Gly-Thr Chemical compound C[C@H]([C@@H](C(=O)NCC(=O)N[C@@H]([C@@H](C)O)C(=O)O)N)O KBBRNEDOYWMIJP-KYNKHSRBSA-N 0.000 description 1
- NDZYTIMDOZMECO-SHGPDSBTSA-N Thr-Thr-Ala Chemical compound [H]N[C@@H]([C@@H](C)O)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](C)C(O)=O NDZYTIMDOZMECO-SHGPDSBTSA-N 0.000 description 1
- COYHRQWNJDJCNA-NUJDXYNKSA-N Thr-Thr-Thr Chemical compound C[C@@H](O)[C@H](N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H]([C@@H](C)O)C(O)=O COYHRQWNJDJCNA-NUJDXYNKSA-N 0.000 description 1
- 230000000735 allogeneic effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 108010016616 cysteinylglycine Proteins 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003398 denaturant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000004700 fetal blood Anatomy 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 108010067216 glycyl-glycyl-glycine Proteins 0.000 description 1
- 108010089804 glycyl-threonine Proteins 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000021267 infertility disease Diseases 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 210000004994 reproductive system Anatomy 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000004767 rumen Anatomy 0.000 description 1
- 238000011476 stem cell transplantation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
Images
Landscapes
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
本发明公开了一种快速检测奶牛子宫内膜炎中病原菌的方法,包括下列步骤:1)采用试剂盒方法提取培养过夜的子宫分泌物中6种常见病原菌的DNA;2)在含有上述细菌DNA的反应体系中,加入一种可以同时检测6种细菌特异性序列的PCR引物系统进行扩增;3)配制2%琼脂糖凝胶进行凝胶电泳,电压:120V,时间:45min,随后进行电泳紫外成像。该方法基于多重聚合酶链式反应技术,可实现同时检测大肠杆菌、金黄色葡萄球菌、化脓隐秘杆菌、乳房链球菌、奇异变形杆菌和绿脓杆菌6种细菌,较测序、单重PCR等技术操作更简便、成本更低、且有较高的灵敏度和特异性,极大的缩短了临床细菌检测鉴定周期。
Description
技术领域
本发明属于微生物检测领域,具体涉及一种快速检测奶牛子宫内膜炎中病原菌的方法。
背景技术
奶牛子宫内膜炎(endometritis)是奶牛由于病原微生物感染等因素引起子宫内膜发生炎症反应,从而造成子宫内膜层出现病理变化的一种疾病。此病大多数发生在奶牛分娩或产后期间,是奶牛最为常见的繁殖障碍性疾病,由子宫内膜炎引起的不孕症可占疾病性不孕的60.0%-70.0%。该病可导致患牛屡配不孕,甚至死亡,对奶牛生殖系统带来长期不可逆转的影响,由此带来的饲养成本增加、泌乳量下降甚至淘汰率升高等问题,给奶牛场带来严重的经济损失。因此实现快速灵敏的分析鉴定,是控制疾病的首要选择。
研究调查表明奶牛子宫内膜炎感染菌株中,细菌占有大部分的比例。在这些病原菌中,大肠埃希菌、化脓隐秘杆菌和链球菌占绝大多数,其次为葡萄球菌、奇异变形杆菌和铜绿假单胞菌。
目前临床上奶牛子宫内膜炎细菌感染状况,主要依靠实验室传统细菌分离方法,通常情况下,进行样品采集后,先将样品转种于血平板,进行细菌分离纯化,然后做鉴定和药敏试验,一般细菌的分离鉴定结果需要一周左右,不能满足临床细菌快速检测需求,不利于指导临床治疗。
综上所述,传统细菌分离鉴定方法耗时长,操作复杂,不能满足临床大规模细菌快速检测。目前很多检测技术应用于细菌检测,但是也存在着局限性。
例如荧光定量PCR利用荧光信号,对PCR进程进行实时检测。完成了从普通PCR的定性检测到定量检测的突破,不需要PCR后续处理,且具有更强的特异性。但荧光定量PCR所用仪器设备以及使用的探针价格较为高昂,不利于生产实践应用。高通量测序可一次性检测几十万到几百万条DNA序列,因此有人称其为下一代测序技术(next generationsequencing)。在奶牛的子宫、瘤胃和肠道等大量微生物种群存在的地方,高通量测序起到至关重要的作用。但在由于目前高通量测序成本高昂,且灵敏度较低。变性梯度凝胶电泳技术(Denaturing Gradient Gel Electrophoresis,DGGE)基于DNA在不同浓度变性剂中解链行为的差异,而使得泳迁移率产生显著变化,从而将碱基组成不同但片段大小相同的DNA片段分离。PCR-DGGE技术可同时分析大量样品、快速准确地鉴定微生物个体,具有分辨率高和样本需求量小等优点,但该技术也有一定的局限性:该技术只能检测到500bp以下的DNA片段,且很难检测出含量低于1%的微生物,电泳时易出现共迁移现象。
相比较上述技术,多重PCR技术具有特异、灵敏和快捷的特点,能同时进行多种病原微生物的鉴定,对于流行病的检测与预防,具有不可替代的作用。自1988年首次报道采用多重PCR技术诊断异基因脐带血干细胞移植治疗假肥大型肌营养不良症(DMD)以来,多重PCR方法已被广泛用于对多个目的基因的同时检测。
发明内容
针对上述现有技术中存在的问题与缺陷,本发明的目的在于提供一种快速检测奶牛子宫内膜炎中病原菌的方法,该方法不仅能够实现6种细菌的同时检测,使得奶牛子宫内膜炎的病原菌检测更为快捷、简便,而且操作简单,结果灵敏准确,成本低廉。
实现上述发明目的所采用的技术方案是:一种快速检测奶牛子宫内膜炎中病原菌的方法,具体包括下列步骤:
1)细菌基因组DNA的提取:采用试剂盒方法提取培养过夜的子宫分泌物中的大肠埃希菌(E.coli)、金黄色葡萄球菌(S.aureus)、化脓隐秘杆菌(T.pyogenes)、乳房链球菌(S.uberis)、奇异变形杆菌(P.mirabilis)、铜绿假单胞菌(P.aeruginosa)的DNA;
2)多重PCR:使用特异性的PCR引物,在含有上述细菌DNA的反应体系中,加入6对不同的细菌引物进行扩增;
3)电泳紫外成像:配制2%琼脂糖凝胶进行凝胶电泳,电压:120V,时间:45min,随后进行电泳紫外成像。
根据大肠杆菌的ycjM基因、金黄色葡萄球菌的耐热核酸酶基因nuc、致病性化脓隐秘杆菌的溶血素plo基因、乳房链球菌的纤溶酶原激酶pauA基因、奇异变形杆菌的尿素酶合成的正向调节因子R基因(ureR)和绿脓杆菌的O抗原乙酰基转移酶基因设计引物。提供一种可以同时检测6种细菌特异性序列的PCR引物系统或引物组。所述PCR引物系统包含选自如下引物:
1)扩增大肠埃希菌(E.coli)特异性序列的引物SEQ ID No:1和SEQ ID No:2;
2)扩增金黄色葡萄球菌(S.aureus)特异性序列的引物SEQ ID No:3和SEQ ID No:4;
3)扩增化脓隐秘杆菌(T.pyogenes)特异性序列的引物SEQ ID No:5和SEQ ID No:6;
4)扩增乳房链球菌(S.uberis)特异性序列的引物SEQ ID No:7和SEQ ID No:8;
5)扩增奇异变形杆菌(P.mirabilis)特异性序列的引物SEQ ID No:9和SEQ IDNo:10;
6)扩增铜绿假单胞菌(P.aeruginosa)特异性序列的引物SEQ ID No:11和SEQ IDNo:12。
本发明的一种快速检测奶牛子宫内膜炎中病原菌的方法与现有技术相比较,具有以下特点:
1)本发明能够实现6种细菌的同时检测,使得奶牛子宫内膜炎的病原菌检测更为快捷、简便。
2)相比传统的细菌分离鉴定方法,本发明操作简单,结果灵敏准确,成本低廉,可快速检测细菌菌种。
附图说明
图1为单重PCR特异性验证电泳图;
图2为多重PCR特异性验证电泳图;
图3为多重PCR模板浓度梯度图;
图4为多重PCR退火温度梯度图。
具体实施方式
实施例1一种快速检测奶牛子宫内膜炎中病原菌的方法,具体包括下列步骤:
1)细菌基因组DNA的提取:采用试剂盒方法提取培养过夜的子宫分泌物中的大肠埃希菌(E.coli)、金黄色葡萄球菌(S.aureus)、化脓隐秘杆菌(T.pyogenes)、乳房链球菌(S.uberis)、奇异变形杆菌(P.mirabilis)、铜绿假单胞菌(P.aeruginosa)的DNA。
2)多重PCR:在含有上述细菌DNA的反应体系中,加入一种可以同时检测6种细菌特异性序列的PCR引物系统进行扩增。
根据大肠杆菌的ycjM基因、金黄色葡萄球菌的耐热核酸酶基因nuc、致病性化脓隐秘杆菌的溶血素plo基因、乳房链球菌的纤溶酶原激酶pauA基因、奇异变形杆菌的尿素酶合成的正向调节因子R基因(ureR)和绿脓杆菌的O抗原乙酰基转移酶基因设计引物。
设计的6对特异性引物序列如下:
将6种细菌引物按以下比例加入PCR管中,实验使用25μL 2倍预混酶(PremixTaq),6μL细菌DNA模板,其余使用无菌超纯水补齐至50μL。具体数据如下表。每次实验应设置阳性对照和阴性对照,阴性对照中细菌模板使用无菌超纯水代替,以检测实验试剂是否污染;阳性对照中六种细菌模板(浓度50ng/μL)各加入1μL,以检测操作是否正确,试剂是否有效。
随后将加好的反应体系按以下程序进行,反应参数如下表。
3)电泳紫外成像:配制2%琼脂糖凝胶进行凝胶电泳,电压:120V,时间:45min,随后进行电泳紫外成像。
紫外凝胶电泳检测:取10μL PCR产物进行2%琼脂糖凝胶120V,40min电泳,1000LDDNALadder作参照,紫外凝胶成像系统观察结果。
图1为单重PCR特异性验证电泳图,图中M:marker;1:化脓隐秘杆菌;2:金黄色葡萄球菌;3:大肠杆菌;4:绿脓杆菌;5:奇异变形杆菌;6:乳房链球菌;7:蜡样芽胞杆菌;8:无乳链球菌;9:阴性对照。结果显示各引物特异性良好,目的条带明显,无非特异性杂带存在,其他菌株对引物无阳性反应。
图2为多重PCR特异性验证电泳图,图中M:marker;1:化脓隐秘杆菌;2:金黄色葡萄球菌;3:大肠杆菌;4:绿脓杆菌;5:奇异变形杆菌;6:乳房链球菌;7:6种目标菌混合;8:化脓隐秘杆菌;9:化脓隐秘杆菌和金黄色葡萄球菌;10:化脓隐秘杆菌、金黄色葡萄球菌和大肠杆菌;11:化脓隐秘杆菌、金黄色葡萄球菌、大肠杆菌和绿脓杆菌;12:化脓隐秘杆菌、金黄色葡萄球菌、大肠杆菌、绿脓杆菌和奇异变形杆菌;13:化脓隐秘杆菌、金黄色葡萄球菌、大肠杆菌、绿脓杆菌、奇异变形杆菌和乳房链球菌;14:阴性对照。结果显示多重PCR结果良好,各引物之间无交叉反应,引物只与其目的菌株DNA产生反应,对其他引物无影响,目的条带明显,无非特异性杂带存在。
图3为多重PCR模板浓度梯度图,图中M:marker;1:1ng/μL;2:0.1ng/μL;3:10pg/μL;4:1pg/μL;5:0.1pg/μL;6:10fg/μL;7:1fg/μL;8:0.1fg/μL;9:阴性对照。结果表明模板敏感度可达10pg/μL,各条带亮度均一明显。
图4为多重PCR退火温度梯度图,图中M:marker;1:50℃;2:52℃;3:54℃;4:56℃;5:58℃;6:60℃;7:62℃;8:阴性对照。结果表明反应体系在退火温度≤54℃时其目的基因条带清晰,无明显杂带,因此将退火温度设置在54℃以保证其结果清晰,特异性良好。
序列表
<110> 西北农林科技大学
<120> 一种快速检测奶牛子宫内膜炎中病原菌的方法
<141> 2019-03-12
<160> 12
<170> SIPOSequenceListing 1.0
<210> 1
<211> 19
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 1
Gly Cys Cys Ala Ala Ala Gly Cys Cys Ala Gly Thr Ala Ala Ala Gly
1 5 10 15
Thr Ala Gly
<210> 2
<211> 17
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 2
Cys Cys Ala Thr Thr Thr Gly Ala Ala Gly Cys Cys Gly Ala Thr Gly
1 5 10 15
Thr
<210> 3
<211> 19
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 3
Gly Ala Ala Ala Gly Gly Gly Cys Ala Ala Thr Ala Cys Gly Cys Ala
1 5 10 15
Ala Ala Gly
<210> 4
<211> 17
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 4
Cys Gly Cys Thr Ala Ala Gly Cys Cys Ala Cys Gly Thr Cys Cys Ala
1 5 10 15
Thr
<210> 5
<211> 21
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 5
Gly Ala Thr Ala Ala Gly Thr Ala Cys Ala Thr Thr Cys Gly Thr Gly
1 5 10 15
Gly Thr Cys Thr Gly
20
<210> 6
<211> 18
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 6
Gly Thr Gly Gly Gly Ala Thr Thr Gly Thr Thr Gly Ala Thr Gly Ala
1 5 10 15
Cys Gly
<210> 7
<211> 17
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 7
Cys Cys Gly Thr Thr Ala Ala Thr Gly Cys Gly Gly Ala Thr Gly Ala
1 5 10 15
Cys
<210> 8
<211> 17
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 8
Thr Gly Thr Gly Gly Ala Cys Cys Ala Ala Thr Gly Cys Cys Thr Ala
1 5 10 15
Thr
<210> 9
<211> 16
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 9
Gly Cys Gly Gly Thr Thr Thr Cys Gly Cys Ala Ala Thr Ala Gly Gly
1 5 10 15
<210> 10
<211> 17
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 10
Thr Thr Gly Gly Cys Gly Ala Gly Ala Thr Thr Gly Ala Gly Thr Gly
1 5 10 15
Cys
<210> 11
<211> 17
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 11
Cys Gly Gly Cys Gly Ala Ala Ala Cys Ala Ala Thr Cys Cys Ala Gly
1 5 10 15
Gly
<210> 12
<211> 17
<212> PRT
<213> 人工序列(2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 12
Ala Thr Gly Cys Cys Ala Ala Gly Gly Cys Gly Thr Cys Cys Ala Ala
1 5 10 15
Gly
Claims (2)
1.PCR引物系统在制备检测奶牛子宫内膜炎致病菌试剂中的用途,其特征在于,所述PCR引物系统包括:
1)扩增大肠埃希菌(E.coli)特异性序列的引物SEQ ID No:1和SEQ ID No:2;
2)扩增金黄色葡萄球菌(S.aureus)特异性序列的引物SEQ ID No:3和SEQ ID No:4;
3)扩增化脓隐秘杆菌(T.pyogenes)特异性序列的引物SEQ ID No:5和SEQ ID No:6;
4)扩增乳房链球菌(S.uberis)特异性序列的引物SEQ ID No:7和SEQ ID No:8;
5)扩增奇异变形杆菌(P.mirabilis)特异性序列的引物SEQ ID No:9和SEQ ID No:10;
6)扩增铜绿假单胞菌(P.aeruginosa)特异性序列的引物SEQ ID No:11和SEQ ID No:12;
检测奶牛子宫内膜炎致病菌的方法步骤为:
1)细菌基因组DNA的提取:采用试剂盒方法提取培养过夜的子宫分泌物中的大肠埃希菌(E.coli)、金黄色葡萄球菌(S.aureus)、化脓隐秘杆菌(T.pyogenes)、乳房链球菌(S.uberis)、奇异变形杆菌(P.mirabilis)、铜绿假单胞菌(P.aeruginosa)的DNA;
2)多重PCR:在含有上述细菌DNA的反应体系中,加入上述的PCR引物系统进行扩增;
3)电泳紫外成像:配制2%琼脂糖凝胶进行凝胶电泳,电压:120V,时间:45min,随后进行电泳紫外成像。
2.根据权利要求1所述的PCR引物系统在制备检测奶牛子宫内膜炎致病菌试剂中的用途,其特征在于,所述PCR引物系统进行扩增的条件为: 94℃5min;94℃30s,54℃30s,72℃80s,30个循环;72℃10min。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910186379.2A CN109706257B (zh) | 2019-03-12 | 2019-03-12 | 一种快速检测奶牛子宫内膜炎中病原菌的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910186379.2A CN109706257B (zh) | 2019-03-12 | 2019-03-12 | 一种快速检测奶牛子宫内膜炎中病原菌的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109706257A CN109706257A (zh) | 2019-05-03 |
CN109706257B true CN109706257B (zh) | 2022-05-27 |
Family
ID=66265775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910186379.2A Expired - Fee Related CN109706257B (zh) | 2019-03-12 | 2019-03-12 | 一种快速检测奶牛子宫内膜炎中病原菌的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109706257B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110295241A (zh) * | 2019-07-11 | 2019-10-01 | 深圳易致生物科技有限公司 | 用于检测尿路感染的引物组和包含该引物组的试剂盒 |
CN112080561A (zh) * | 2020-08-18 | 2020-12-15 | 安徽农业大学 | 一种牛子宫内膜炎的微生物标志物及其应用 |
CN116814486A (zh) * | 2023-06-26 | 2023-09-29 | 青岛农业大学 | 一种促进化脓隐秘杆菌生长的细菌培养基 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103627812B (zh) * | 2013-12-11 | 2015-08-19 | 广西大学 | 奶牛乳房炎主要致病菌四重pcr快速检测试剂盒 |
CN107022629A (zh) * | 2017-05-16 | 2017-08-08 | 广东海大畜牧兽医研究院有限公司 | 一种奶牛乳房炎病原菌的多重pcr检测引物组及其应用 |
-
2019
- 2019-03-12 CN CN201910186379.2A patent/CN109706257B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN109706257A (zh) | 2019-05-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109706257B (zh) | 一种快速检测奶牛子宫内膜炎中病原菌的方法 | |
Wang et al. | Comparison of vaginal microbial community structure in healthy and endometritis dairy cows by PCR-DGGE and real-time PCR | |
Moustafa et al. | Molecular typing of haemorrhagic septicaemia-associated Pasteurella multocida isolates from Pakistan and Thailand using multilocus sequence typing and pulsed-field gel electrophoresis | |
CN102134590A (zh) | 产气荚膜梭菌的快速检测方法及检测引物组和检测试剂盒 | |
NL2031171B1 (en) | Primer, Probe and Application for Identifying Brucella Vaccine Strain A 19 and Wild Strain | |
CN112725478A (zh) | 同时检测志贺菌、沙门氏菌、魏氏梭菌、大肠杆菌的四重pcr检测引物组及试剂盒 | |
CN109439781A (zh) | 用于检测艰难梭菌基因的引物组合物、试剂盒及试剂盒的应用 | |
CN106148548B (zh) | 一种能同时检测产气荚膜梭菌、溶血梭菌和b型诺维氏梭菌的多重pcr检测试剂盒及其应用 | |
CN111518931A (zh) | 牛奶中3种致病菌多重pcr诊断试剂盒 | |
CN111763717A (zh) | 一种检测猪传染性胸膜肺炎杆菌感染的纳米pcr方法 | |
CN110029179B (zh) | 一组核苷酸分子及在纹带棒状杆菌鉴定中的应用 | |
CN102936621A (zh) | 蜡样芽孢杆菌的检测方法及试剂盒 | |
CN114410771B (zh) | 基于一代测序平台检测新生儿遗传病基因的引物库组合、试剂盒和方法 | |
CN118186118B (zh) | 一种实验动物微生物多重pcr快速检测试剂盒及快速检测方法 | |
CN110358851B (zh) | 用于检测蜡样芽孢杆菌的核酸序列、引物及方法和试剂盒 | |
CN114657273B (zh) | 一种检测多种牛乳腺炎病原的引物对和探针组合及其应用 | |
CN110184370B (zh) | 一种检测约翰逊不动杆菌特异性引物及方法和应用 | |
CN111424102B (zh) | 一种化妆品特定菌多重pcr快速检测试剂盒及其检测方法 | |
CN118147341B (zh) | 一种向日葵黑茎病菌特异性检测靶标及快速检测应用 | |
CN110373486B (zh) | 用于检测科氏葡萄球菌的pcr引物、pcr方法及其试剂盒 | |
CN113512600B (zh) | 一种检测恶臭假单胞菌的引物和方法及其应用 | |
CN114164296B (zh) | 一种用于检测寡雄腐霉菌的引物探针组合物、试剂盒及应用和检测方法 | |
CN110184368B (zh) | 一种检测towneri不动杆菌的特异性引物及方法和应用 | |
Ahmed et al. | Development of a loop-mediated isothermal amplification (LAMP) assay for molecular identification of Trueperella abortisuis isolated from pigs | |
CN117965771A (zh) | 一种多重荧光定量pcr检测奶牛乳房炎病原菌的引物探针组和检测方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220527 |
|
CF01 | Termination of patent right due to non-payment of annual fee |