CN105861334B - One plant of endogenetic fungus that acacia confusa biomass can be promoted to increase - Google Patents

One plant of endogenetic fungus that acacia confusa biomass can be promoted to increase Download PDF

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CN105861334B
CN105861334B CN201610452938.6A CN201610452938A CN105861334B CN 105861334 B CN105861334 B CN 105861334B CN 201610452938 A CN201610452938 A CN 201610452938A CN 105861334 B CN105861334 B CN 105861334B
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biomass
acacia confusa
plant
endogenetic fungus
bacterium solution
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CN105861334A (en
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李键
林晗
周艳芬
陈灿
谢安强
范海兰
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Fujian Agriculture and Forestry University
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    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
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    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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    • A01N63/00Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
    • A01N63/30Microbial fungi; Substances produced thereby or obtained therefrom
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    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/14Fungi; Culture media therefor

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Abstract

The endogenetic fungus that acacia confusa biomass can be promoted to increase the present invention relates to one plant.The endogenetic fungus be silk Ustilago (Filobasidium) B, preservation is registered in China Committee for Culture Collection of Microorganisms's common micro-organisms center on January 27th, 2016, deposit number is CGMCC No.11910.Acacia confusa endogenetic fungus B is inoculated in acacia confusa earth culture seedling, the biomass of acacia confusa after measurement inoculation 60 days, plant handled by acacia confusa endogenetic fungus B and the biomass difference compareed are extremely significant, biomass compares display, the bacterial strain works well compared with the growth-promoting of control group, and biomass is 1.4 times of control group;Root/shoot ratio compares display, and the root/shoot ratio of the bacterial strain is 1.5 times of control, shows that the bacterial strain has apparent facilitation to the growth of acacia confusa biomass.

Description

One plant of endogenetic fungus that acacia confusa biomass can be promoted to increase
Technical field
The endogenetic fungus that acacia confusa biomass can be promoted to increase the present invention relates to one plant.
Background technique
The research of endophyte of plant starts from the end of the 19th century, and Vogl divides from rye grass Lolium temulentum L. seed Separate out first plant of endophyte.But the endophyte really started in numerous studies plant originates in last century the eighties, mainly It conducts a research in the vegetation of Temperate Region in China, subtropical zone and torrid areas.
The distribution of plant endogenesis epiphyte is wide, type is more, and forefathers out of most plants research shows that can separate To endogenetic fungus, it can be seen that endogenetic fungus is prevalent in plant.At least belong to 290 at more than 80 in worldwide Endophyte is had found in a variety of gramineae farm crops.The unique function that the endo-mycorrhiza separated from plant at present has according to it Can be divided into: nitrogen-fixing bacteria consolidate plant growth-promoting bacterias, the biocontrol microorganisms with disease and insect resistance such as potassium bacterium, solid phosphorus bacterium and have promotion plant To the resistance bacterium of the repair ability of poor environment.
In relation to endogenetic fungus, to the influence research that acacia confusa is grown, there is also blank.
Summary of the invention
The purpose of the present invention is to provide the endogenetic fungus that one plant of bacterial strain can promote acacia confusa biomass to increase, the fungies For silk Ustilago (Filobasidium) B, it is general in China Committee for Culture Collection of Microorganisms on January 27th, 2016 Preservation is registered at logical microorganism center, and address is Yard 1, BeiChen xi Road, Chaoyang District, Beijing City 3, and deposit number is CGMCC No. 11910。
To achieve the above object, the present invention adopts the following technical scheme:
The separation of the bacterium, purifying include:
A, material: being divided into three parts for the root for collecting different year, branch stem, leaf, cleaned up with tap water, point It is attached in valve bag, is saved in 4 DEG C of refrigerators;
B, sterilize: 75% alcohol rinses 30s → aseptic water washing 3-4 times → 15% sodium hypochlorite and rinses (root 10min, stem 5min, leaf 2min) → aseptic water washing 4-5 times.In the small beaker that water after sample last time is embathed is contained in sterilizing, flat Whether lining out is used as control, thorough with the disinfection of sample survey, generates behind several days if any bacterium colony, then shows sample surfaces Disinfection is not thorough, and need to continue to adjust sterilization method;
C, the selection of inoculation position: blade: leaf tip, leaf central part and leaf base 3 processing;Branch stem: upper, middle and lower is divided into 3 Position, wherein the 3rd position is branch stem junction;Root: it is divided into 2 parts of the tip of a root and foundation;
D, it is inoculated with: the explant after disinfection being cut with vaccinating lancet, is laid in media surface, in 28 DEG C of constant temperature incubations Bacterium colony upgrowth situation is observed after culture 5-7 days in case.Rapidly, the bacterial strain that can be first generated is separated for some bacterial strain breedings Purifying;The bacterial strain of slow growth and negligible amounts can extend observing time, purify after its growth is stablized;
Solid culture: using improvement Martin's solid medium, be formulated for peptone 5.0g/L, yeast extract powder 2.0g/L, Glucose 20.0g/L, dipotassium hydrogen phosphate 1.0g/L, magnesium sulfate 0.5g/L, agar 14.0g/L, it is other be sterile water, pH value 6.4 ± 0.2, cultivation temperature is 28 DEG C, and training method is plate culture, incubation time 48h;
E, different types of endogenetic fungus access plating medium that separation is bred is purified, by 2-3 point The above-mentioned of single culture is respectively obtained after connecing purifying, switchingFilobasidiumFunction stem;
A kind of preparation method of above-mentioned endogenetic fungus application bacterium solution that acacia confusa biomass can be promoted to increase, being will be upper The bacterial strain access fluid nutrient medium stated, shaking table shaken cultivation, cultivation temperature is 28 DEG C, and 48~72h of incubation time utilizes hemocytometer Number plate calculates bacterial concentration, and bacterium solution is diluted to 1.0-9.0 × 10 with ultrapure water6Cfu/ml is that finished product is spare;Liquid Culture Base: to improve Martin's culture medium, wherein peptone 5.0g/L, yeast extract powder 2.0g/L, glucose 20.0g/L, phosphoric acid hydrogen two Potassium 1.0g/L, magnesium sulfate 0.5g/L, it is other be sterile water, pH value 6.4 ± 0.2.
A kind of application method of above-mentioned endogenetic fungus application bacterium solution that acacia confusa biomass can be promoted to increase, is application The bacterium solution of the bacterial strain, which is poured, imposes on acacia confusa Seedling rhizosphere soil or nursery stock is directly inoculated with.
A kind of application method of above-mentioned endogenetic fungus application bacterium solution that acacia confusa biomass can be promoted to increase, is to use 5.5×106Cfu/ml bacterium solution is poured in forest land in the rhizosphere of every plant of acacia confusa by every plant of 100ml.
Bacterial strain of the present invention is isolated and purified from acacia confusa plant, and acacia confusa earth culture is inoculated in Seedling further confirms that it has the work for promoting acacia confusa biomass to increase to plant strain growth according to indices Comprehensive Evaluation With search out can be applied to produce to the beneficial function endogenetic fungus for promoting biomass to increase.
The method applied is poured by bacterium solution and is inoculated in acacia confusa seedling, is measured when being just inoculated with April and when the 60 day June of inoculation Biomass, the root/shoot ratio of acacia confusa.Plant handled by acacia confusa endogenetic fungus B and the biomass, root/shoot ratio that compare are poor It is different significant.Biomass compares display, and bacterial strain B processing works well compared with the growth-promoting of control group, and biomass is the 1.4 of control group Times.Root/shoot ratio compares display, and the root/shoot ratio of bacterial strain B is 1.5 times of control.Show growth of the bacterial strain B to acacia confusa biomass With apparent facilitation.
Detailed description of the invention
Fig. 1 is influence of the different disposal to acacia confusa Seedling Biomass;
Fig. 2 is influence of the different disposal to acacia confusa seedling root/shoot ratio.
Specific embodiment
Rhizosphere soil, which pours, grants nursery stock and is directly inoculated with application
This test uses earth culture pot experiment, and test material therefor is the Taiwan phase that Municipal Forestry Bureau, Zhangzhou City, Fujian Province provides Think one year seedling.Select the consistent acacia confusa seedling planting of growing way in diameter 15cm, the plastic tub of high 10cm.Soil used It is the stringent yellow soil Jing Guo fumigation.It is weighed by mixing, every basin is put into the 3kg soil of equivalent.It is extensive by one month After renaturation growth, it is 5.5 × 10 that continuous three days, which apply concentration in acacia confusa rhizosphere,6The 100mL bacterium solution of cfu/ml, uses distilled water Solution is as blank control.
Bacterium solution preparation: by the fluid nutrient medium of strains tested access 40mL, culture medium is improvement Martin's culture medium, wherein egg It is white peptone 5.0g/L, yeast extract powder 2.0g/L, glucose 20.0g/L, dipotassium hydrogen phosphate 1.0g/L, magnesium sulfate 0.5g/L, other For sterile water, pH value 6.4 ± 0.2, the culture of 72h is passed through in constant-temperature shaking incubator.It is dilute by ten times with sterile saline Interpretation of the law dilutes bacterium solution, calculates bacterial concentration using blood counting chamber and is configured to 5.5 × 106cfu/mL.Inoculation carries out after 60 days The measurement of the indexs such as height of seedling, ground diameter, detection method are as follows:
The measurement of biomass
The different parts of plant are respectively put into envelope and are put signs on, 105 DEG C of drying half an hour (passivation of baking oven are put into Enzyme), it dries, after 12h, is placed into baking oven after weighing, replication is until constant weight at 60 DEG C.Claim to obtain sample Weight (W), as sample dry weight, the biomass of plant is indicated with this, is accurate to 0.01g.
As a result with analysis
Influence of the different disposal to acacia confusa biomass and root/shoot ratio
Biomass is the important indicator for reflecting nursery stock production power level, and there is very close for the growth and development of it and nursery stock Relationship.As shown in Figure 1, the biomass of the seedling of inoculating strain B is bigger than control group by 37.12%, and in extremely significant between control group Otherness (sig=0.008, the level of signifiance 0.01), thus, growth of the bacterial strain to the biomass of acacia confusa seedling With extremely significant facilitation.Shown in Fig. 2, the root/shoot ratio control group of the seedling of inoculating strain B is big by 46.89%, and and control group Between extremely significant otherness (sig=0.005, the level of signifiance 0.01), illustrate increasing of the bacterial strain B to acacia confusa seedling root/shoot ratio There is greatly extremely significant facilitation.
Present invention discover that the endogenetic fungus that two plants of hybrid bacterial strains can promote acacia confusa seedling biomass to increase, by this plant of Taiwan Yearning between lovers endogenetic fungal bacterial strain is inoculated in acacia confusa seedling using the method for pouring root.Pass through biomass to plant, root/shoot ratio Measurement show that the biomass for being inoculated with the processing of the bacterial strain, root/shoot ratio increase and is largely higher than control, shows it for promoting The growth of biomass has very big function, to further confirm that obtaining this plant of endogenetic fungus can promote acacia confusa biological The growth of amount.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with Modification, is all covered by the present invention.

Claims (3)

1. one plant of endogenetic fungus that acacia confusa biomass can be promoted to increase, it is characterised in that: the fungi is silk Ustilago (Filobasidium) B, on January 27th, 2016 in China Committee for Culture Collection of Microorganisms's common micro-organisms center Preservation is registered, deposit number is CGMCC No. 11910.
2. a kind of application bacterium solution of the one plant as described in claim 1 endogenetic fungus that acacia confusa biomass can be promoted to increase, It is characterized by: the preparation method using bacterium solution, by the silk Ustilago (Filobasidium) B bacterial strain access liquid Body culture medium, shaking table shaken cultivation, cultivation temperature are 28 DEG C, 48~72h of incubation time, and it is dense to calculate bacterium solution using blood counting chamber Degree, is diluted to 1.0 × 10 with ultrapure water for bacterium solution6-9.0×106Cfu/ml, it is spare;Fluid nutrient medium: for improvement Martin's culture Base, wherein peptone 5.0g/L, yeast extract powder 2.0g/L, glucose 20.0g/L, dipotassium hydrogen phosphate 1.0g/L, magnesium sulfate 0.5g/L, it is other be sterile water, pH value 6.4 ± 0.2.
3. a kind of purposes for applying bacterium solution as claimed in claim 2, it is characterised in that: the application bacterium solution is used for acacia confusa Seedling rhizosphere soil, which pours, to be applied or nursery stock is directly inoculated with.
CN201610452938.6A 2016-06-22 2016-06-22 One plant of endogenetic fungus that acacia confusa biomass can be promoted to increase Expired - Fee Related CN105861334B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014165174A2 (en) * 2013-03-12 2014-10-09 Strobel Gary A Microorganisms for producing volatile organic compounds and methods using same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014165174A2 (en) * 2013-03-12 2014-10-09 Strobel Gary A Microorganisms for producing volatile organic compounds and methods using same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Identification and bioactive properties of endophytic fungi isolated from phyllodes of Acacia species;H.B.Q. Tran,et al;《Resrarchgate》;20141010;全文 *
喀斯特生境台湾相思根瘤菌的生物学特性研究;吕成群等;《微生物学通报》;20080220(第02期);全文 *

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