Summary of the invention
The present invention screens one plant of rapid wild strain of growth from ooze, identified to be named as Vibrio natriegen Vibrio
Natriegens SK42.001 is preserved in China typical culture collection center CCTCC, deposit number on January 5th, 2017
For CCTCC M2017011.
Vibrio natriegen Vibrio natriegens SK42.001 of the present invention has characteristics that
(1) growth is nearly twice of reference strain E. coli BL21 rapidly;It is 3% in NaCl concentration
In LB culture medium, the culture Dai Shiwei 16.2min of Vibrio natriegen SK42.001, and E.coli BL21 is for Shi Zewei 31.4min;
SK42.001 grows single colonie after the culture of LB plate streaking 5 hours, and E.coli BL21 then needs 10 hours;
(2) contain itself natural plasmid, size is about 3000bp;
(3) starch, maltose can be utilized with gelatin hydrolysate;
(4) aerobic growth;
(5) containing the base for encoding the gene (SEQ ID NO.2) of algin catenase, containing the few algin catenase of coding
Because of (SEQ ID NO.3);
(6) encoding gene of some albumen contained is different from other Vibrio natriegen strains, such as Xanthan lyase, pili
Albumen TadC, TadE, CpaB etc..
Vibrio natriegen Vibrio natriegens SK42.001 of the present invention, can be dense in LB culture medium or NaCl
It grows, or is being formulated in the LB culture medium that degree is 3% are as follows: sodium alginate 5g, (NH4)2SO4 5g、NaCl 30g、MgS04·
7H2O 1g、K2HPO4 2g、FeSO4·7H2O 0.01g, 1 000mL of distilled water are grown in the culture medium of pH 7.2.
Vibrio natriegen V.natriegens SK42.001 growth provided by the invention rapidly, carries natural plasmid and energy
Enough expression alien genes, have the Development volue and application potential as new ant algorithms biology.Meanwhile the bacterial strain contain coding it is brown
The gene of phycocolloid lyases, the gene for encoding few algin catenase, it may also be used for production prepares brown alga oligose Related product.
Biomaterial preservation
Vibrio natriegen Vibrio natriegens SK42.001 is preserved in Chinese Typical Representative culture on January 5th, 2017
Collection CCTCC, preservation address are the Wuhan Wuhan University, China, and deposit number is CCTCC NO:M2017011.
The identification of 2 Vibrio natriegen Vibrio natriegens of embodiment
(1) flat-plate bacterial colony form
As shown in Fig. 2, the flat-plate bacterial colony form of Vibrio natriegen SK42.001: it lines and is mushroomed out on plating medium,
28 DEG C of cultures grow single colonie afterwards for 24 hours, the rounded protrusion of bacterium colony, milky, it is wet slightly stick, surface is smooth, flush edge, diameter
About 0.6~0.8cm.
(2) the thallus feature under Electronic Speculum
As shown in figure 3, thallus feature of the Vibrio natriegen SK42.001 under Electronic Speculum: thallus is short and small, and both ends blunt circle is bent to
Arcuation, size are 1.2~1.4 μm of 0.6~0.8 μ m.
(3) physiological and biochemical property
The physiological and biochemical property of Vibrio natriegen SK42.001: as shown in Fig. 1, table 1, table 2, Vibrio natriegen is Gram's staining
Feminine gender, aerobic growth, indole reaction is negative, and hydrolyzable gelatin and weakly hydrolyse aesculin cannot hydrolyze arginine, urea and β-
Galactoside cannot utilize fructose, maltose, synanthrin, wood using glucose, sucrose, starch, arabinose, mannose
Sugar, galactolipin, sorbose, xylitol.Specifically, Vibrio natriegen provided by the invention can with gelatin hydrolysate, can using starch,
Maltose.
The 16S rDNA (SEQ ID NO.1) of Vibrio natriegen SK42.001 is compared with the data in ncbi database,
The result shows that high with Vibrio natriegen homology.
1 bacterial strain SK42.001 physio-biochemical characteristics of table-enzyme activity, carbon source oxidation
+: positive reaction;: negative reaction
2 bacterial strain SK42.001 physio-biochemical characteristics of table-produce acid using carbon source
+: positive reaction;: negative reaction;W: weakly positive reaction
The genetic characteristics of 4 Vibrio natriegen Vibrio natriegens of embodiment
Vibrio natriegen SK42.001 and Daniel Gibson seminar, California Synthetic Genomics company it is used its
In one plant of bacterial strain V.natriegens CCUG16374 consistency be 100%;Vibrio natriegen SK42.001 and Harvard University
George Church seminar and common bacterial strain V.natriegens ATCC14048 (or DSM759) consistency of Gibson are
99%.But V.natriegens SK42.001 is not identical with V.natriegens CCUG16374 full-length genome.
(1) SK42.001 contains the encoding gene that some CCUG16374 do not have.Such as:
I SK42.001 contains the gene (SEQ ID NO.2) of coding algin catenase;
II SK42.001 contains the gene (SEQ ID NO.3) for encoding few algin catenase.
(2) SK42.001 and CCUG16374 have the encoding gene of some albumen different, such as:
I as shown in figure 8, the gene of SK42.001 coding Xanthan lyase and the coding xanthan gum of CCUG16374 crack
The similitude of the gene of enzyme is 98%, there is 69 base differences, 18 Gap.
II some pilins related with bacterial pilli is constituted have larger difference
A. as shown in figure 9, pili assembling albumen TadC similitude is 77%, there are 201 base differences, 6 Gap.
B. as shown in Figure 10, pili synthetic proteins TadE similitude is 82%, there is 79 base differences, 6 Gap.
C. as shown in figure 11, it is 79% that pili Flp type, which assembles PROTEIN C paB similitude, there is 154 base differences, 10
Gap。
(3) V.natriegens SK42.001 itself is there are natural plasmid, and reported other V.natreigens plants
There is no natural plasmids for system.
Picking V.natriegens SK42.001 single colonie is inoculated in 50mL fluid nutrient medium, 28 DEG C, 200rpm culture
2 days, extract the plasmid of SK42.001 wild strains using a small amount of extraction agent boxes of SanPrep pillar Plasmid DNA, and with 1% fine jade
Lipolysaccharide gel electrophoresis detects (such as Fig. 7).It was found that SK42.001 wild strain contains itself natural plasmid, size is 3000bp or so.
Superhelix is presented in plasmid in figure, and band is in the position of actual size 1/2.
Although the present invention has been described by way of example and in terms of the preferred embodiments, it is not intended to limit the invention, any to be familiar with this skill
The people of art can do various change and modification, therefore protection model of the invention without departing from the spirit and scope of the present invention
Enclosing subject to the definition of the claims.
SEQUENCE LISTING
<110>Southern Yangtze University
<120>a kind of Vibrio natriegen and its application
<160> 3
<170> PatentIn version 3.3
<210> 1
<211> 1401
<212> DNA
<213>vibrio marinopraesens SK42.001
<400> 1
caagtcgagc ggaaacgagt taactgaacc ttcgggggac gttaacggcg tcgagcggcg 60
gacgggtgag taatgcctag gaaattgccc tgatgtgggg gataaccatt ggaaacgatg 120
gctaataccg catgatgcct acgggccaaa gagggggacc ttcgggcctc tcgcgtcagg 180
atatgcctag gtgggattag ctagttggtg aggtaagggc tcaccaaggc gacgatccct 240
agctggtctg agaggatgat cagccacact ggaactgaga cacggtccag actcctacgg 300
gaggcagcag tggggaatat tgcacaatgg gcgcaagcct gatgcagcca tgccgcgtgt 360
gtgaagaagg ccttcgggtt gtaaagcact ttcagtcgtg aggaaggttt atgcgttaat 420
agcgtataga tttgacgtta gcgacagaag aagcaccggc taactccgtg ccagcagccg 480
cggtaatacg gagggtgcga gcgttaatcg gaattactgg gcgtaaagcg catgcaggtg 540
gtttgttaag tcagatgtga aagcccgggg ctcaacctcg gaatagcatt tgaaactggc 600
agactagagt actgtagagg ggggtagaat ttcaggtgta gcggtgaaat gcgtagagat 660
ctgaaggaat accggtggcg aaggcggccc cctggacaga tactgacact cagatgcgaa 720
agcgtgggga gcaaacagga ttagataccc tggtagtcca cgccgtaaac gatgtctact 780
tggaggttgt ggccttgagc cgtggctttc ggagctaacg cgttaagtag accgcctggg 840
gagtacggtc gcaagattaa aactcaaatg aattgacggg ggcccgcaca agcggtggag 900
catgtggttt aattcgatgc aacgcgaaga accttaccta ctcttgacat ccagagaact 960
ttccagagat ggattggtgc cttcgggaac tctgagacag gtgctgcatg gctgtcgtca 1020
gctcgtgttg tgaaatgttg ggttaagtcc cgcaacgagc gcaaccctta tccttgtttg 1080
ccagcgagta atgtcgggaa ctccagggag actgccggtg ataaaccgga ggaaggtggg 1140
gacgacgtca agtcatcatg gcccttacga gtagggctac acacgtgcta caatggcgca 1200
tacagagggc ggccaacttg cgaaagtgag cgaatcccaa aaagtgcgtc gtagtccgga 1260
ttggagtctg caactcgact ccatgaagtc ggaatcgcta gtaatcgtgg atcagaatgc 1320
cacggtgaat acgttcccgg gccttgtaca caccgcccgt cacaccatgg gagtgggctg 1380
caaaagaagt aggtagttta a 1401
<210> 2
<211> 1566
<212> DNA
<213>vibrio marinopraesens SK42.001
<400> 2
atgaagcata ttttcttcaa aagcttgtta gcttcttcaa tcctattggc tgttggttgt 60
aacagcactg caactgcgaa ggctgatttc ccaaacaatc aagaaaccgg cgttgacatt 120
ctaactcctg ttgcaatcac ggcgagtagc catgatggta atgtgcctga gaacttactt 180
gaccaagata ttatgactcg ctgggcagcg aacggtgacg gtgagtgggc aatgttggat 240
tacggctcag tttatgggtt cgatgcaatc caagcgtcgt ttagtaaagg taatgaacgt 300
gtcacgtcat ttgatgttca gttcagcaca gatggtgaaa actgggtaac ggttattgaa 360
ggtgcacaaa gctctggtcg tgctcttggt ctggaacgct tccagttcga gcctgcggta 420
aaagctcgtt atgtacgtta cgttggccac ggcaatacca aaaaccaatg gaacgctgtt 480
actgaaatgg ccgcggttaa ctgtggaatc aatgcgtgcc cggcaagcca tgtcattacc 540
gatgatgttg ttaaagctga agcgactatg attgctgcaa tgaaggctaa ggaaaaagcg 600
caaaaggaac tccttaaaaa taatcgcaaa ggtgatttcg gagaaccaat cgtccgtcct 660
tgcgggacga cagtgacgtg tgacctaact aaagcaatgc catccccaac gctaccggct 720
gttccactag ctaagaatgc accaggccaa aactttgacc tgacgcgctg gaaactgaca 780
acgcctttcg atcacgacaa agacggccgc gctgatgata ttgatgagtg ggatatggca 840
aacggcttcc agcacccaga tatcttctac acagctgatg atggcggcat ggttttcaag 900
agctatgtaa aaggtgcacg tacctctaaa aatactaagt acgcacgtac agagttgcgc 960
actatgctgc gtgcgggtga gaagtctcac agtacaaaag gtgtaaatcc aaataactgg 1020
gtattcagct cagcgccggt agaagatcag aaagcagcgg gtggggtaga tggcacgctt 1080
gaggcaactc tgaagattga ccatgcaacc acaacgggtc agtcacacga agttggccgt 1140
ttcattatcg gtcagattca tgacaaagat gatgagccaa ttcgccttta ctaccgtaag 1200
ctaccagacc agccaacagg tacggtttac ttcgctcacg aaaaaaccaa aacaggtact 1260
gaagattact acagcctggt tggtgatatg actggtgaaa tcggtaacga tggtatcgcg 1320
ctaggtgaaa aattcagcta catcattgat gtaaaaggca acacgatgac agttacggta 1380
aaacgtgacg gtaaagatga tgttgtacaa gtcgtagata tgagtgacag tggttatgat 1440
gagggtggcc gatacatgta cttcaaggcc ggtgtttata accagaatat gtacggcaat 1500
ccagatgatt acgctcaagc aactttctac aagctagatc aatcttttgg taagtaccaa 1560
ggctag 1566
<210> 3
<211> 2082
<212> DNA
<213>vibrio marinopraesens SK42.001
<400> 3
atgagcaacc aaaagtctct tgacgctatt agaaagataa agctggagaa tgatacatca 60
gctggaaacc ttgttgactt attgcctatc gaagtacaaa aacgcgactt cgatctgtca 120
tttctagata ccttgagtga agctcgtcca cgcctgctag tccaagctga gcagcttgaa 180
gaattcaaag cgaaagtaca ggctgatgag tcttactgta tgttcgacga tttctacaat 240
aactcgacgg ttaagtttct tgaaactgaa ccttatgaag agccgaagcc ttacccggaa 300
gagacagttg gaaaagcttc tctatggcgt ccttactggc gtcaaatgta tgttgattgc 360
cagatggcgc ttaacgcgac acgtaacttg gctattgccg gaatcgttaa agaagatgaa 420
gcgctgattg ctaaagccaa agcatggact ctgaagctgt cgacttatga tcctgaaggc 480
gtcacgtctc gtggttacaa tgacgaagct gcgtttcgtg ttattgcggc tatggcatgg 540
ggttacgatt ggttacatgc ttactttacc gatgaagagc ggcagcaagt tcaaaatgca 600
ttagtgaccc gcctggacga aatcatgcac cacctgaaag tgacggttga cctacttagc 660
aacccgctga acagtcacgg tgttcgttct atttcttcag ctatcatccc aacatgtatc 720
gcgctttatc acgatcaccc gaaagcgggt gagtacatcg catacgcgtt agaatattat 780
gcagtgcact acccaccatg gggcggagaa gatggcggct gggcagaagg tcctgattac 840
tggaatacgc aaacggcttt cctaggtgaa gctttcgacc tattaaaagc gtactgtggc 900
gtagacatgt tcaataaaac gttctacgaa aacaccggcg atttcccact atactgtatg 960
cccgttcact ctaagcgtgc gagtttctgt gaccagtcat cgatcggtga tttccctggt 1020
ctgaagctgg cttacaatat caagcattac gcaggtgtta accagaagcc agagtacgtt 1080
tggtattaca atcaactaaa aggtcgtgat acagaagctc acactaaatt ctacaactat 1140
ggctggtggg attttggcta cgacgatctt cgtttcaaca ttctttggga tgcgcctgag 1200
gagcaagcgc cgtcaaatga cccgttgttg aaagtattcc cgattacagg ttgggctgca 1260
ttccacaata agatgactga acgtgataac cacatccata tggtgttcaa gtgctctccg 1320
tttggttcta tcagtcattc acatggtgac cagaacgcat ttacgctaca tgccttcggt 1380
gaaactttag cggcgatcac cggctattac ggcggcttcg gcgtagatat gcacacgaaa 1440
tggcgtcgcc aaacgttctc taaaaacttg cctctatttg gtggtaaagg ccaatatggc 1500
gagaacaaaa atacaggcta cgaaaaccac caagaccgtt tctgtattga agcgggcggt 1560
aatatcacag actacgatac tgaatctgat gtgaagatgg tagaaggtga tgcaactgca 1620
tcttataagt acttcgttcc tgagatcgaa tcttacaagc gtaagatctg gtttgttcaa 1680
ggcaaagttt ttgtaatgca agacaaggcg acgctttctg aagagaaaga catgacgtgg 1740
ttgatgcata ccacgtttgc taacgaagtg gcggataagt cattcactgt ccggggtgaa 1800
gtcgcgcacc tagacgtgaa ctttattaac gaatccgctg gtaatatcgc ttctgttaag 1860
aacgttgaag gcttcggtga agttgatccg tatgaataca aagagttaga aatccaccgt 1920
catgttgaag tggaattcaa gccatccaac gagcacaaca tcttaactct tctggttcct 1980
aataagaacg agggtgagca agttgaagtt tcttataagc tggaaggtaa cgtcttactt 2040
ctgacagtag atggtgaagc cgtagaaatt gatttgtctt aa 2082