CN108531429A - It is a kind of to produce protease, the Xiamen bacillus of anti-botrytis cinerea and its application - Google Patents
It is a kind of to produce protease, the Xiamen bacillus of anti-botrytis cinerea and its application Download PDFInfo
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Abstract
The invention discloses a kind of production protease, the Bacillus strains of anti-botrytis cinerea, the strain classification is named as Xiamen bacillus (Bacillus xiamenensis) SH183, it is stored in China Committee for Culture Collection of Microorganisms's common micro-organisms center (CGMCC) on April 8th, 2018, deposit number is：CGMCC15564.The bacterial strain, which has, promotes biological growth, produces protease, the effect of anti-graw mold of tomato.The bacterial strain is applied in production, the raising for tomato yield, reduces harm of the pesticide to irrigation water body, and the generation for reducing drug-fast bacteria is significant.
Description
Technical field
The present invention relates to a kind of microbial strains and its applications, and in particular to one kind have anti-graw mold of tomato, lay eggs it is white
The application of Xiamen bacillus (Bacillus xiamenensis) SH183 and its production protease and anti-graw mold of tomato of enzyme.
Background technology
Tomato is planted as one of main economic fruits and vegetables in China in China extensively, but with the popularization of plantation, it is many
Problem also just gradually highlights.For example, orchard worker continuously plants tomato in greenhouse, the environment of warm and moist in greenhouse is easy to cause
The fungal infections such as graw mold of tomato.If using chemicals, easily causes pesticide and remain excessive, the edible wind of increase in fruit surface
Danger.In addition, during irrigation, pesticide is dissolved in water enters natural environment therewith, it is also possible to polluted-water.Another party
Face, the vegetable grower for pursuing high yield may largely use chemical fertilizer, and soil hardening, fertility is caused to decline, and cannot be plant growth supply foot
Enough nutrition.The plant growth-promoting rhizobacteria PGPR types reported both at home and abroad are various, and the growth and breeding of bacterium and activity are not only able to promote
The nutrient in soil is preferably absorbed and utilized in tomato, and the activity of microorganism can also be such that soil loosens, alleviate hardened phenomenon.
PGPR can also enhance the resistance of plant for disease, some bacteriums can more improve by the contaminated soils environment such as heavy metal, pesticide.
Microbe species are various, widely distributed, metabolism reproduction speed is fast, provided for the mass production and extensive use of microbial manure
Good precondition.
Tomato planting is extensive, but susceptible disease, and graw mold of tomato is one of which Common Diseases.Graw mold of tomato pathogen is
The pathogen of Botrytis cinerea of Deuteromycotina, the spore of pathogen can borrow the various ways such as air-flow, rainwater and human production activity into
Row is propagated.The spatial of gray mold is very strong, and susceptible disease under low temperature and high relative humidity weather, tomato leaf, stem, fruit may all be felt
Dye, blade site of pathological change have the mould layer of canescence at taupe " V " font scab, surface；Stem mostly occurs in bifurcation or base
, there are water soaked spots or a filbert big spot in portion, and serious around stem one week, sick branch-breakage is disconnected；Fruit rot, the dense mould layer of grey pass
It is fast to broadcast speed.Once morbidity, causes Severe Reduction, yield can be made to reduce 20%-50%.The plant of present China's production cultivation is all
It is non-disease-resistant gene type, although the chemical agent of market some prevention gray molds on sale, there are heteronuclears for the heredity of gray mold
Phenomenon has the bacterial strain meeting mass propagation of certain drug resistance under chemical agent selection index system, leads to the control effect of various medicaments
It is gradually reduced, finally loses effect.In recent years, lot of domestic and foreign scholar is absorbed in the various medicines for studying anti-graw mold of tomato
Agent, to prevent graw mold of tomato.
Protease is the general name of the class of enzymes of aminosal peptide chain, and energy catalytic proteins and polypeptide hydrolysis are widely present
In pluck, plant stem-leaf, fruit and microorganism.Currently, inhibit the report of graw mold of tomato more about bacillus,
But it is less about having the bacillus of production protease, anti-botrytis cinerea and notable growth-promoting functions to report simultaneously.
Invention content
For the problems of the prior art, the purpose of the present invention is to provide a kind of Xiamen bacillus (Bacillus
Xiamenensis) SH183, for providing protease yield, prevention botrytis cinerea is significant.
In order to realize the above technical purpose, the present invention relates to following technical schemes：
It is an object of the present invention to provide a kind of bacillus, which is named as Xiamen bacillus
(Bacillus xiamenensis) SH183, depositary institution：In China Committee for Culture Collection of Microorganisms's common micro-organisms
The heart (CGMCC), address：Yard 1, BeiChen xi Road, Chaoyang District, Beijing City 3, preservation date：On April 8th, 2018, deposit number：
CGMCC15564.The 16S rRNA gene orders of the bacterial strain are shown in SEQ NO.1.
The physiological and biochemical property of Xiamen bacillus (Bacillus xiamenensis) SH183 is：Starch Hydrolysis is tested
The positive, the general negatives of Fu-, propionate is positive using experiment, and gelatin liquefaction test is positive, and catalase test is positive, indoles production
Raw negative, citrate is positive using experiment, and nitrate reduction test is positive, and mobility test is positive, arabite examination
Feminine gender is tested, dulcitol negative, glucose fermentation experiment is positive, and sucrose fermentation test is positive, and sweet dew sugar fermentating test is positive,
Sandlwood sugar fermentating test is negative, and cottonseed sugar fermentating test is negative, and hydrogen sulfide generates negative, and urease test is negative.
Preferably, through medium optimization, determine that bacterial strain optimum carbon source of the present invention is sucrose, optimum nitrogen source is bean cake powder, most
Good inorganic salts are KH2PO4, using orthogonal test, determine optimal medium formula.Optimal medium：4% glucose, 2% dregs of beans
Powder, 0.3%KH2PO4。
The bacillus of the present invention can obviously inhibit tomato growth period grey mold disease, promote tomato growth.
The second object of the present invention is to provide Xiamen bacillus (Bacillus xiamenensis) culture of SH183
Method, for rear bacterium colony in irregular, white, flat, drying is opaque for 24 hours on LB plating mediums for the bacillus；Thalline
In elongated rod shape, Gram-positive.Preferably, the group of the culture medium becomes 0.5% yeast extract, 1% peptone, 1% chlorination
Sodium, 1.6% agar, distilled water, 121 DEG C of sterilizings 20min, pH7.0.
The third object of the present invention is to provide a kind of microbial bacterial agent, which includes above-mentioned Xiamen gemma bar
The culture of bacterium (Bacillus xiamenensis) SH183.
Preferably, the dosage form of microbial bacterial agent is that wettable powder, water dispersible granules, aqueous suspension agent or dispersible oil suspend
Agent.
Further, further include acceptable auxiliary material in Pesticide Science in microbial bacterial agent, it is acceptable in the Pesticide Science
One kind in dispersant, wetting agent, disintegrant, binder, antifoaming agent, antifreeze, thickener, filler and solvent of auxiliary material or
It is a variety of.The present invention is not particularly limited the source etc. of acceptable auxiliary material in the Pesticide Science, is generally using commercial product
It can.
The fourth object of the present invention is to provide a kind of preparation method of growth-promoting fermented liquid, and steps are as follows：By Xiamen bud
Spore bacillus (Bacillus xiamenensis) SH183 is transferred in the test tube equipped with 5ml fluid nutrient mediums, is placed on constant-temperature table
Middle culture 12-14h, temperature：37 DEG C, rotating speed：180-200rpm；Activated bacterium solution is linked into 100- by 1% inoculum concentration
In 200mL culture mediums, it is put into shaking table culture for 24 hours, temperature：37 DEG C, rotating speed：Zymotic fluid is made in 180-200rpm.Through studying table
It is bright, under condition of pot, with the zymotic fluid of the bacillus for producing protease, anti-botrytis cinerea of the invention in tomato final singling
Root irrigation afterwards can generate protease in the soil, enhance the root activity of tomato, promote the life of tomato plant height, root long, ground diameter
It is long, biomass is improved, tomato stem-leaf dry and wet weight is increased, anti-tomato gray mould disease improves tomato yield.
The five of the object of the invention are that the application method for providing above-mentioned growth-promoting fermented liquid takes preparation after tomato final singling
Root irrigation after good zymotic fluid dilution, every plant of 5mL in pot experiment.
The six of the object of the invention are to provide a kind of pharmaceutical composition, which is characterized in that comprising upper in the pharmaceutical composition
State microbial bacterial agent, one kind in growth-promoting fermented liquid or combination.
The seven of the object of the invention are to protect the egg of above-mentioned bacterial strains, microbial bacterial agent and pharmaceutical composition in decomposing soil
White matter be amino acid to promote plant growth, anti-botrytis cinerea in terms of application.
Beneficial effects of the present invention
The present invention is by providing a kind of new bacterial strain, Xiamen bacillus (Bacillus xiamenensis) SH183.
The bacterial strain of the present invention has the function of improving protease yield, promotes biological growth, anti-graw mold of tomato.The zymotic fluid of the bacterial strain
Root irrigation is carried out at tomato growth initial stage, tomato plant height, root long, ground diameter and cauline leaf dry and wet weight have prodigious compared with control group
Increase, has reached notable or pole significant difference.The generation that pest and disease damage is reduced while effectively improving yield reduces pesticide and is producing
In use, be also of great significance for environmental protection.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
The microscopy photo of Fig. 1 SH183；
The flat-plate bacterial colony characteristic pattern of Fig. 2 SH183；
The production protease of Fig. 3 SH183 can try hard to；
The potted plant experiment growth-promoting effect contrast figure of Fig. 4 SH183；
Fig. 5 SH183 are to botrytis cinerea Antagonism design sketch.
Specific implementation mode
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
In conjunction with specific example, the present invention is further illustrated, and following instance is not right merely to the explanation present invention
Its content is defined.If the experiment actual conditions being not specified in embodiment, usually according to normal condition, or according to reagent public affairs
The recommended condition of department；Reagent as used in the following examples, consumptive material etc., are commercially available unless otherwise specified.
In a kind of specific implementation mode of the present invention, a kind of bacillus is provided, which is named as Xiamen bud
Spore bacillus (Bacillus xiamenensis) SH183, depositary institution：China Committee for Culture Collection of Microorganisms is commonly micro-
Bio-Centers (CGMCC), address：Yard 1, BeiChen xi Road, Chaoyang District, Beijing City 3, preservation date：On April 8th, 2018, preservation
Number：CGMCC15564.The 16S rRNA gene orders of the bacterial strain are shown in SEQ NO.1.
The physiological and biochemical property of Xiamen bacillus (Bacillus xiamenensis) SH183 is：Starch Hydrolysis is tested
The positive, the general negatives of Fu-, propionate is positive using experiment, and gelatin liquefaction test is positive, and catalase test is positive, indoles production
Raw negative, citrate is positive using experiment, and nitrate reduction test is positive, and mobility test is positive, arabite examination
Feminine gender is tested, dulcitol negative, glucose fermentation experiment is positive, and sucrose fermentation test is positive, and sweet dew sugar fermentating test is positive,
Sandlwood sugar fermentating test is negative, and cottonseed sugar fermentating test is negative, and hydrogen sulfide generates negative, and urease test is negative.
The bacterial strain optimum carbon source is sucrose, and optimum nitrogen source is bean cake powder, and optimal inorganic salts are KH2PO4, utilize orthogonal examination
It tests, determines optimal medium formula.Optimal medium：4% glucose, 2% bean cake powder, 0.3%KH2PO4。
In the still another embodiment of invention, Xiamen bacillus (Bacillus xiamenensis) SH183 is provided
Cultural method, the bacillus on LB plating mediums for 24 hours after bacterium colony in irregular, white is flat, dry, impermeable
It is bright；Thalline is in elongated rod shape, Gram-positive.Preferably, the group of the culture medium become 0.5% yeast extract, 1% peptone,
1% sodium chloride, 1.6% agar, distilled water, 121 DEG C of sterilizings 20min, pH7.0.
The still another embodiment of the present invention, provides a kind of microbial bacterial agent, which includes above-mentioned Xiamen
The culture of bacillus (Bacillus xiamenensis) SH183.The dosage form of microbial bacterial agent is wettable powder, moisture
Shot agent, aqueous suspension agent or dispersible oil-suspending agent.
Preferably, further include acceptable auxiliary material in Pesticide Science in microbial bacterial agent, it is acceptable in the Pesticide Science
One kind in dispersant, wetting agent, disintegrant, binder, antifoaming agent, antifreeze, thickener, filler and solvent of auxiliary material or
It is a variety of.The present invention is not particularly limited the source etc. of acceptable auxiliary material in the Pesticide Science, is generally using commercial product
It can.
In the still another embodiment of the present invention, a kind of preparation method of growth-promoting fermented liquid is provided, steps are as follows：By tall building
Door bacillus (Bacillus xiamenensis) SH183 is transferred in the test tube equipped with 5ml fluid nutrient mediums, is placed on constant temperature
12-14h, temperature are cultivated in shaking table：37 DEG C, rotating speed：180-200rpm；Activated bacterium solution is linked by 1% inoculum concentration
In 100-200mL culture mediums, it is put into shaking table culture for 24 hours, temperature：37 DEG C, rotating speed：Zymotic fluid is made in 180-200rpm.Through research
Show under condition of pot, with the zymotic fluid of the bacillus for producing protease, anti-botrytis cinerea of the invention in tomatidine
Root irrigation after seedling can generate protease in the soil, enhance the root activity of tomato, promote tomato plant height, root long, ground diameter
Growth improves biomass, increases tomato stem-leaf dry and wet weight, and anti-tomato gray mould disease improves tomato yield.
In the still another embodiment of the present invention, the application method of above-mentioned growth-promoting fermented liquid is provided, after tomato final singling,
Root irrigation after taking the zymotic fluid for preparing to dilute, every plant of 5mL in pot experiment.
In the still another embodiment of the present invention, a kind of pharmaceutical composition is provided, which is characterized in that in the pharmaceutical composition
Including mentioned microorganism microbial inoculum, one kind in growth-promoting fermented liquid or combination.
In the still another embodiment of the present invention, above-mentioned bacterial strains, microbial bacterial agent and pharmaceutical composition are provided in promotion kind
Application in terms of eggplant growth of seedling, anti-botrytis cinerea.
Embodiment 1SH183 promotes the measurement of plant growth ability
Select CK bacterial strains as a contrast, experiment uses nutrient discs planting patterns, is carried out in soil naturally, in seedling medium
It cultivates to 5-6 piece true leaves, it is spare to choose the uniform tomato seedling of health, growing way.The mode of pouring root handles tomato seedling, and method is as follows：
It waits for that seedling growth is stablized after transplanting seedlings, 5 plants of seedling (1 plant/basin), every plant of application 5mL growth-promoting fermented liquid is handled with microbial inoculum after 7 days
(concentration is about 108Cfu/mL), poured around root system after appropriate dilution, normal management；Control is CK strain cultured solutions.40 days
Plant height, ground diameter, the root long of plant are measured afterwards.Comparing result is as shown in table 1 and Fig. 4.
1 growth-promoting effect of table
Note：* it indicates to reach significant difference in 0.05 level comparing with CK, * * expressions are compared horizontal 0.01 with CK
On reach pole significant difference.
Lay eggs white abilities of embodiment 2SH180 measure
It measures and uses Folin phenol methods, add the casein solution that 2mL mass fractions are 0.5% to be in pH value 1mL original fermentation liquors
7.0,37 DEG C of water-bath 15min, then the trichloroacetic acid for being 10% with mass fraction inactivate, and then take the centrifugation of the above-mentioned reaction solutions of 1mL
Supernatant adds the Na of 1mL Folin phenol and 5mL 0.55mol/L2CO3, in 37 DEG C of water-bath 15min, survey the absorbance under 660nm
Value.To add the reaction system of inactivation enzyme solution as blank control.It defines at this point in the reaction：1 μ g tyrosine institute is generated per 1min
It is an enzyme activity to need enzyme amount.White enzyme effect of laying eggs is as shown in Figure 3.
It is as shown in table 2 below to produce protease testing result：
Table 2 generates protease testing result
3 tablet face-off method of embodiment verifies SH183 botrytis resistant pathogen effect measurings
Tablet face-off method verifies gray mold pathogen antagonistic effect method：On PDA solid plates, it will be activated with tweezers
At gray mold disease fungus picking soya bean as size lawn, be placed on the center of tablet, cultivate 1d under the conditions of 28 DEG C, wait for
It is true from close gray mold cause of disease with the toothpick picking strain to be tested after sterilizing when a diameter of 2cm of gray mold disease fungus or so
1-2d is cultivated under the conditions of being placed in 28 DEG C in the side 2cm of bacterium or so place along the direction streak inoculation intersected with growth of pathogenic bacteria direction
After observe antagonistic effect, effect is as shown in Figure 5.
PDA culture medium preparation method used：200g potatoes filter to take whole filtrates, sucrose 20g, agar after boiling 30min
1.6%, it is settled to 1L, 121 DEG C of sterilizing 20min.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
SEQUENCE LISTING
<110>Shandong Agricultural University
<120>It is a kind of to produce protease, the Xiamen bacillus of anti-botrytis cinerea and its application
<130> 2010
<160> 1
<170> PatentIn version 3.3
<210> 1
<211> 1393
<212> DNA
<213>Xiamen bacillus xiamenensis 16s rDNA
<400> 1
aaaggttacc tcaccgactt cgggtgttgc aaactctcgt ggtgtgacgg gcggtgtgta 60
caaggcccgg gaacgtattc accgcggcat gctgatccgc gattactagc gattccagct 120
tcacgcagtc gagttgcaga ctgcgatccg aactgagaac agatttgtgg gattggctaa 180
accttgcggt ctcgcagccc tttgttctgt ccattgtagc acgtgtgtag cccaggtcat 240
aaggggcatg atgatttgac gtcatcccca ccttcctccg gtttgtcacc ggcagtcacc 300
ttagagtgcc caactgaatg ctggcaacta agatcaaggg ttgcgctcgt tgcgggactt 360
aacccaacat ctcacgacac gagctgacga caaccatgca ccacctgtca ctctgtcccc 420
gaagggaaag ccctatctct agggttgtca gaggatgtca agacctggta aggttcttcg 480
cgttgcttcg aattaaacca catgctccac cgcttgtgcg ggcccccgtc aattcctttg 540
agtttcagtc ttgcgaccgt actccccagg cggagtgctt aatgcgttag ctgcagcact 600
aaggggcgga aaccccctaa cacttagcac tcatcgttta cggcgtggac taccagggta 660
tctaatcctg ttcgctcccc acgctttcgc tcctcagcgt cagttacaga ccagagagtc 720
gccttcgcca ctggtgttcc tccacatctc tacgcatttc accgctacac gtggaattcc 780
actctcctct tctgcactca agtttcccag tttccaatga ccctccccgg ttgagccggg 840
ggctttcaca tcagacttaa gaaaccgcct gcgagccctt tacgcccaat aattccggac 900
aacgcttgcc acctacgtat taccgcggct gctggcacgt agttagccgt ggctttctgg 960
ttaggtaccg tcaaggtgca agcagttact cttgcacttg ttcttcccta acaacagagc 1020
tttacgatcc gaaaaccttc atcactcacg cggcgttgct ccgtcagact ttcgtccatt 1080
gcggaagatt ccctactgct gcctcccgta ggagtctggg ccgtgtctca gtcccagtgt 1140
ggccgatcac cctctcaggt cggctacgca tcgtcgcctt ggtgagccgt tacctcacca 1200
actagctaat gcgccgcggg tccatctgta agtgacagcc gaaaccgtct ttcatccttg 1260
aaccatgcgg ttcaaggaac tatccggtat tagctccggt ttcccggagt tatcccagtc 1320
ttacaggcag gttacccacg tgttactcac ccgtccgccg ctaacatccg ggagcaagct 1380
cccttctgtc cgc 1393
Claims (10)
1. a kind of Xiamen bacillus (Bacillus xiamenensis) SH183, the bacterial strain is in preservation on April 8 in 2018
In China Committee for Culture Collection of Microorganisms's common micro-organisms center, preserving number CGMCC15564.
2. bacterial strain as described in claim 1, which is characterized in that optimum carbon source is sucrose, and optimum nitrogen source is bean cake powder, best nothing
Machine salt is KH2PO4, optimal medium are 4% glucose, 2% bean cake powder, 0.3%KH2PO4。
3. the cultural method of bacterial strain as described in claim 1, which is characterized in that use LB plating medium cultures.
4. cultural method as claimed in claim 3, which is characterized in that the LB plating mediums formula is：0.5% yeast soaks
Cream, 1% peptone, 1% sodium chloride, 1.6% agar, distilled water, 121 DEG C of sterilizings 20min, pH7.0.
5. a kind of microbial bacterial agent, the microbial inoculum includes the culture of bacterial strain described in claim 1.
6. microbial bacterial agent as claimed in claim 5, which is characterized in that the dosage form of the microbial bacterial agent is wettable powder
Agent, water dispersible granules, aqueous suspension agent or dispersible oil-suspending agent；Preferably, further include being subjected in Pesticide Science in the microbial inoculum
Auxiliary material, in the Pesticide Science acceptable auxiliary material be selected from dispersant, wetting agent, disintegrant, binder, antifoaming agent, antifreeze,
It is one or more in thickener, filler and solvent.
7. a kind of preparation method of growth-promoting fermented liquid, it is characterised in that：Bacterial strain switching described in the claim 1 that inclined-plane is preserved
Into the test tube equipped with 5ml fluid nutrient mediums, it is placed in constant-temperature table and cultivates 12-14h, temperature：37 DEG C, rotating speed：180-
200rpm；Activated bacterium solution is linked by 1% inoculum concentration in 100-200mL culture mediums, is put into shaking table culture for 24 hours, temperature：
37 DEG C, rotating speed：Zymotic fluid is made in 180-200rpm.
8. the application method of zymotic fluid as claimed in claim 7, which is characterized in that after tomato final singling, the zymotic fluid is carried out
Root irrigation, every plant of 5mL in pot experiment.
9. a kind of pharmaceutical composition, which is characterized in that include the microbial bacteria described in claim 5 in described pharmaceutical composition
One kind in growth-promoting fermented liquid described in agent, claim 7 or combination.
10. the microbial bacterial agent and claim 9 described pharmaceutical composition described in bacterial strain, claim 5 described in claim 1 exist
Protease is generated, protein in soil is decomposed and promotes plant to the supplying of nitrogen source, the application in terms of anti-botrytis cinerea.
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