CN105463103A - Method for authenticating Beijing Pantoea - Google Patents

Method for authenticating Beijing Pantoea Download PDF

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Publication number
CN105463103A
CN105463103A CN201610003767.9A CN201610003767A CN105463103A CN 105463103 A CN105463103 A CN 105463103A CN 201610003767 A CN201610003767 A CN 201610003767A CN 105463103 A CN105463103 A CN 105463103A
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China
Prior art keywords
beijing
general bacterium
primer
general
bacterium
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CN201610003767.9A
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Chinese (zh)
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CN105463103B (en
Inventor
马元伟
刘宇
荣成博
许峰
王守现
黄斌
王晶
宋婧祎
李瑞杰
赵爽
王兰青
宋爽
牛玉蓉
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Shanghai Ocean University
Beijing Academy of Agriculture and Forestry Sciences
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Shanghai Ocean University
Beijing Academy of Agriculture and Forestry Sciences
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    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
    • C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
    • C12Q1/6888—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms
    • C12Q1/689—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms for bacteria

Abstract

The invention discloses a method for authenticating Beijing Pantoea. The method includes the steps that the genome DNA of a to-be-detected biological sample serves as a template, PCR amplification is conducted through a Beijing Pantoea special primer pair ADF-ADR to obtain a PCR product, the size of the PCR product is detected, the to-be-detected biological sample is Beijing Pantoea or contains Beijing Pantoea if the PCR product contains DNA segments of 500-700 bp, and the to-be-detected biological sample is not Beijing Pantoea or does not contain Beijing Pantoea if the PCR product does not contain DNA segments of 500-700 bp. By means of the Beijing Pantoea specific primer pair ADF-ADR, specific bands are obtained only from the genome DNA of Beijing Pantoea through amplification, no amplification products are obtained from other strains, and the Beijing Pantoea specific primer pair ADF-ADR can be used for rapidly authenticating Beijing Pantoea.

Description

The method of the general bacterium in qualification Beijing
Technical field
The present invention relates in biological technical field the method identifying the general bacterium in Beijing.
Background technology
China is Pleurotus eryngii large-scale planting from last century the nineties.General Pseudomonas comprises several kinds (Pantoea:insightsintoahighlyversatileanddiversegenuswithi ntheEnterobacteriaceae, FEMSMicrobiologyReviews (2015) 39:968-984) as plant growth-promoting bacteria, biocontrol microorganisms or phytopathogen.It is the serious plant disease occurred in Pleurotus eryngii industrial production at home and abroad in recent years by general microbial Pleurotus eryngii bacterial soft rot, be reported in the pathogenic bacteria of the Pleurotus eryngii soft rot of Beijing area identified and name as the general bacterium in Beijing (Pantoeabeijingensissp.nov., isolatedfromthefruitingbodyofPleurotuseryngii.Liuetal.An tonievanLeeuwenhoek (2013) 104:1039 – 1047).Pleurotus eryngii bacterial soft rot, is just difficult to control once occur at production plant, produces cause serious loss to Pleurotus eryngii industrial.The general bacterium in Beijing is also the malignant bacteria (FirstreportofPantoeabeijingensisinducedsoftrotdiseaseofP leurotusnebrodensisinChina.Xuetal.PlantDisease (2014) 98 (7): 1000) of the Pleurotus nebrodensis soft rot that Beijing area occurs.The exploitation of Beijing general bacterium quick diagnosis technology, significant to effective prevention and control of Pleurotus eryngii soft rot and Pleurotus nebrodensis soft rot.
Summary of the invention
Technical problem to be solved by this invention how to identify or the general bacterium in assistant identification Beijing.
For solving the problems of the technologies described above, the invention provides the general bacterium specific PCR primers pair in Beijing.
The general bacterium specific PCR primers in Beijing provided by the present invention is called ADF-ADR to name, is made up of primer ADF and primer ADR; Described primer ADF is the single strand dna shown in SEQIDNo.1; Described primer ADR is the single strand dna shown in SEQIDNo.2.
Present invention also offers and comprise Beijing general bacterium special primer to the reagent of the general bacterium of the qualification of ADF-ADR or assistant identification Beijing or test kit.
The reagent of the general bacterium of above-mentioned qualification or assistant identification Beijing or test kit also comprise other reagent except primer carried out needed for PCR reaction.
Present invention also offers the general bacterium special primer in Beijing to the preparation method of ADF-ADR, qualification or the reagent of the general bacterium in assistant identification Beijing or the preparation method of test kit.
Beijing provided by the present invention preparation method of general bacterium special primer to ADF-ADR comprises the step of individually being packed by described two single strand dnas of general for Beijing bacterium special primer to ADF-ADR.
The reagent of the general bacterium of qualification provided by the present invention or assistant identification Beijing or the preparation method of test kit, comprise the step of individually being packed by described two single strand dnas of general for Beijing bacterium special primer to ADF-ADR.
Present invention also offers the DNA molecular shown in SEQIDNo.3.
DNA molecular shown in SEQIDNo.3 is the specific DNA fragment of the general bacterium in Beijing.
Beijing general bacterium special primer also belongs to protection scope of the present invention to the application in qualification or the general bacterium in assistant identification Beijing of the application of ADF-ADR in qualification or the general bacterium in assistant identification Beijing, the reagent of the general bacterium of qualification or assistant identification Beijing or test kit and the application of the DNA molecular shown in SEQIDNo.3 in qualification or the general bacterium in assistant identification Beijing.
Above-mentioned application does not all comprise diagnostic method and/or the methods for the treatment of of disease.
Present invention also offers the method for qualification or the general bacterium in assistant identification Beijing.
The method of the general bacterium of qualification provided by the present invention or assistant identification Beijing, comprise with the genomic dna of biological sample to be measured for template, with the general bacterium special primer in Beijing, pcr amplification is carried out to ADF-ADR and obtain PCR primer, detect the size of described PCR primer, if described PCR primer contains the DNA fragmentation (or described PCR primer is the DNA fragmentation of 500-700bp) of 500-700bp, described biological sample to be measured is the general bacterium in Beijing or contains the general bacterium in Beijing, or described biological sample candidate to be measured contains the general bacterium in Beijing for the general bacterium in Beijing or candidate; If the DNA fragmentation (or described PCR primer be not the DNA fragmentation of 500-700bp) of described PCR primer not containing 500-700bp, described biological sample to be measured is not the general bacterium in Beijing or does not contain the general bacterium in Beijing, or described biological sample candidate to be measured is not that the general bacterium in Beijing or candidate do not contain the general bacterium in Beijing.
In the method for the general bacterium of above-mentioned qualification or assistant identification Beijing, the DNA fragmentation of described 500-700bp specifically can be the DNA fragmentation of 627bp.
Experiment proves, Beijing general bacterium special primer has only amplified specific band to ADF-ADR in the genomic dna of the general bacterium in Beijing, and in other bacterial strain, all do not obtain amplified production, Beijing general bacterium special primer can be used for the general bacterium in Rapid identification Beijing to ADF-ADR.The present invention prevents to provide technical support with the contagium and route of transmission that cut off the general microbial Pleurotus eryngii soft rot in Beijing and Pleurotus nebrodensis soft rot in time early, can realize carrying out early prevention and control to the general microbial Pleurotus eryngii soft rot in Beijing and Pleurotus nebrodensis soft rot.
Accompanying drawing explanation
Fig. 1 is the agarose gel electrophoresis figure of primer pair 16sp1-16sp2 to the pcr amplification product of general bacterium.Wherein, M:1kbplusDNAladder; 1. the general bacterium in Beijing (Pantoeabeijingensissp.nov.) JZB2120001 t; 2.PantoeagaviniaeDSM22758; 3.PantoeaeucalyptiDSM23077; 4.PantoeaanthophilaDSM23080; 5.PantoeaagglomeransDSM30072; 6PantoeadispersaDSM30073; 7.PantoeaagglomeransJCM1236; 8.PantoeaagglomeransJCM20143; 9.Pantoeapleurotisp.nov.JZB2120015 t.
Fig. 2 is that Beijing general bacterium special primer is to the agarose gel electrophoresis figure of the pcr amplification product of the general bacterium of ADF-ADR specific detection.Wherein, M:1kbplusDNAladder; 1. the general bacterium in Beijing (Pantoeabeijingensissp.nov.) JZB2120001 t; 2.PantoeagaviniaeDSM22758; 3.PantoeaeucalyptiDSM23077; 4.PantoeaanthophilaDSM23080; 5.PantoeaagglomeransDSM30072; 6PantoeadispersaDSM30073; 7.PantoeaagglomeransJCM1236; 8.PantoeaagglomeransJCM20143; 9.Pantoeapleurotisp.nov.JZB2120015 t.
Embodiment
Below in conjunction with embodiment, the present invention is further described in detail, the embodiment provided only in order to illustrate the present invention, instead of in order to limit the scope of the invention.
Experimental technique in following embodiment, if no special instructions, is ordinary method.
Material used in following embodiment, reagent etc., if no special instructions, all can obtain from commercial channels.
Beijing in following embodiment general bacterium (Pantoeabeijingensissp.nov.) JZB2120001 t(i.e. LMG27579 tor KCTC32406 t) (Pantoeabeijingensissp.nov., isolatedfromthefruitingbodyofPleurotuseryngii.Liuetal.An tonievanLeeuwenhoek (2013) the 104:1039 – 1047) public can obtain this bacterial strain from Beijing City Academy Of Agriculture and Forest Sciences INST OF PLANT PROT & ENVIRONME or Belgian BCCM/LMG DSMZ or KCTC DSMZ of Korea S.
Pantoeapleurotisp.nov.JZB2120015 in following embodiment t(Pantoeapleurotisp.nov., the IsolatedfromtheFruitingBodiesofPleurotuseryngii.Maetal.C urrentMicrobiology.19November2015) public can obtain this bacterial strain from Beijing City Academy Of Agriculture and Forest Sciences INST OF PLANT PROT & ENVIRONME or Belgian BCCM/LMG DSMZ or Chinese CGMCC DSMZ.
PantoeagaviniaeDSM22758, PantoeaeucalyptiDSM23077, PantoeaanthophilaDSM23080, PantoeaagglomeransDSM30072 and PantoeadispersaDSM30073 in following embodiment are the bacterial strain of German DSM DSMZ.
PantoeaagglomeransJCM1236 and PantoeaagglomeransJCM20143 in following embodiment is the bacterial strain of Japanese JCM DSMZ.
Embodiment 1, PCR primer pair ADF-ADR is utilized to identify the general bacterium in Beijing
1, the PCR reagent of the general bacterium in Beijing is identified
The PCR reagent of the general bacterium in qualification Beijing of the present embodiment by the general bacterium special primer in Beijing to ADF-ADR, 2 × TaqPCRMix (Bioeasy) and ddH 2o forms.
Wherein, the general bacterium special primer in Beijing is made up of ADF (upstream primer) and ADR (downstream primer) ADF-ADR, the nucleotide sequence of ADF is 5'CATTACAGAACCAAACCCTTTTTAATTTTG3'(SEQIDNo.1), the nucleotide sequence of ADR is 5'TTAAATTAGACATAACAAAACAGAAAGTCCC3'(SEQIDNo.2).
2, the general bacterium in Beijing is identified
2.1, the DNA of bacterial strain is extracted
From bacterial classification (Beijing general bacterium (Pantoeabeijingensissp.nov.) JZB2120001 that-80 DEG C are preserved t; PantoeagaviniaeDSM22758; PantoeaeucalyptiDSM23077; PantoeaanthophilaDSM23080; PantoeaagglomeransDSM30072; PantoeadispersaDSM30073; PantoeaagglomeransJCM1236; PantoeaagglomeransJCM20143 or Pantoeapleurotisp.nov.JZB2120015 t) rule in solid LB media, cultivate 20h, be connected in the test tube that LB substratum (3mL) is housed, with 200rpm28 DEG C of shaking culture 18h with the single bacterium colony of each bacterial isolates of transfering loop picking for 28 DEG C.The centrifugal 30s of 12000rpm collects thalline, and wash 2 times with sterilized water, add 200 μ L distilled waters, boil 5min, the centrifugal 5min of 12000rpm, supernatant liquor is the DNA of extraction, as next step pcr template.
2.2, pcr amplification
Respectively with 2.1 DNA of each bacterial strains extracted for template, utilize the general bacterium special primer in Beijing of step 1 to carry out PCR to ADF-ADR.PCR reaction system (20 μ L): 10 μm of olL -1upstream and downstream primer each 1 μ L, 2 × TaqPCRMix (Bioeasy) 10 μ L, template DNA 1 μ L, ddH 2o7 μ L.PCR reaction conditions: 95 DEG C, 5min; 95 DEG C, 30s, 66 DEG C, 30s, 72 DEG C of 1min, 30 circulations; 72 DEG C extend 10min.1% agarose gel electrophoresis detects.
Primer pair 16sp1-16sp2PCR is utilized to increase the 16srDNA fragment of each bacterial strain.Primer pair 16sp1-16sp2 is made up of 16sp1 (sequence is 5 ' AGAGTTTGATCCTGGCTCAGAACGAACGCT3 ') and 16sp2 (sequence is 5 ' TACGGCTACCTTGTTACGACTTCACCCC3 ').PCR reaction system (20 μ L): 10 μm of olL -1upstream and downstream primer each 1 μ L, 2 × TaqPCRMix (Bioeasy) 10 μ L, template DNA 1 μ L, ddH 2o7 μ L.PCR reaction conditions: 95 DEG C, 5min; 95 DEG C, 30s, 55 DEG C, 30s, 72 DEG C of 2min, 30 circulations; 72 DEG C extend 10min.1% agarose gel electrophoresis detects.
Result shows that primer pair 16sp1-16sp2 all can amplify object band in 9 bacterial strains for examination, and the DNA extraction of strains tested respond well (Fig. 1) is described.Beijing general bacterium special primer can only with Beijing general bacterium (Pantoeabeijingensissp.nov.) JZB2120001 to ADF-ADR tbe 500-700bp band for template amplification goes out size, other 8 bacterial strains are this 500-700bp band (Fig. 2) not.Reclaim Beijing general bacterium (Pantoeabeijingensissp.nov.) JZB2120001 t500-700bp band, check order, result shows that the size of this 500-700bp band is 627bp, and its sequence is SEQIDNo.3.Illustrate that Beijing general bacterium special primer is the special primer pair of the general bacterium in Beijing to ADF-ADR, can be used for the general bacterium in Rapid identification Beijing.

Claims (10)

1. the general bacterium special primer pair in Beijing, is made up of primer ADF and primer ADR; Described primer ADF is the single strand dna shown in SEQIDNo.1; Described primer ADR is the single strand dna shown in SEQIDNo.2.
2. qualification or the reagent of the general bacterium in assistant identification Beijing or test kit, comprise the general bacterium special primer pair in Beijing according to claim 1.
3. the preparation method that the general bacterium in Beijing according to claim 1 special primer is right, comprises the step of individually being packed by described two single strand dnas right for general for described Beijing bacterium special primer.
4. the preparation method of reagent according to claim 2 or test kit, comprises the step of individually being packed by described two single strand dnas right for general for described Beijing bacterium special primer.
5. the general bacterium in Beijing according to claim 1 special primer is to the application in qualification or the general bacterium in assistant identification Beijing.
6. reagent according to claim 2 or the application of test kit in qualification or the general bacterium in assistant identification Beijing.
7. the method for qualification or the general bacterium in assistant identification Beijing, comprise with the genomic dna of biological sample to be measured for template, PCR primer is obtained to carrying out pcr amplification with the general bacterium special primer in Beijing according to claim 1, detect the size of described PCR primer, if described PCR primer contains the DNA fragmentation of 500-700bp, described biological sample to be measured is the general bacterium in Beijing or contains the general bacterium in Beijing, or described biological sample candidate to be measured contains the general bacterium in Beijing for the general bacterium in Beijing or candidate; If the DNA fragmentation of described PCR primer not containing 500-700bp, described biological sample to be measured is not the general bacterium in Beijing or does not contain the general bacterium in Beijing, or described biological sample candidate to be measured is not that the general bacterium in Beijing or candidate do not contain the general bacterium in Beijing.
8. method according to claim 7, is characterized in that: the DNA fragmentation of described 500-700bp is the DNA fragmentation of 627bp.
DNA molecular shown in 9.SEQIDNo.3.
The application of DNA molecular shown in 10.SEQIDNo.3 in qualification or the general bacterium in assistant identification Beijing.
CN201610003767.9A 2016-01-04 2016-01-04 The method for identifying the general bacterium in Beijing Expired - Fee Related CN105463103B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109988736A (en) * 2019-05-20 2019-07-09 南京林业大学 One plant of pine endosymbiotic bacterium FBS135 and its application

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109988736A (en) * 2019-05-20 2019-07-09 南京林业大学 One plant of pine endosymbiotic bacterium FBS135 and its application
CN109988736B (en) * 2019-05-20 2022-05-13 南京林业大学 Pine endophytic bacterium FBS135 and application thereof

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