CN107018983A - A kind of natural angle-pyrancoumarins compound as agricultural bacteriocide purposes - Google Patents
A kind of natural angle-pyrancoumarins compound as agricultural bacteriocide purposes Download PDFInfo
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- CN107018983A CN107018983A CN201710385269.XA CN201710385269A CN107018983A CN 107018983 A CN107018983 A CN 107018983A CN 201710385269 A CN201710385269 A CN 201710385269A CN 107018983 A CN107018983 A CN 107018983A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
Abstract
The invention discloses purposes of the one of 8,8 dimethyl of a kind of natural 9,10 dihydroxy of angle-pyrancoumarins compound 9,10 dihydro 2H, 8H pyrano [2,3 f] chromen 2 as agricultural bacteriocide.The compound is used to prevent and treat agricultural fungal evil as bactericide, can effectively prevent and treat the corps diseases such as sclerotinia sclerotiorum, rice sheath blight disease, grey mould fruit rot of strawberry.Compound 9; 10 dihydroxy 8; 8 dimethyl 9; 10 dihydro 2H; 8H pyrano [2; 3 f] chromen 2 the agricultural bacteriocides that are made as active component of one have prevention effect good, broad spectrum activity and low toxicity, noresidue, pollution-free, non-harmful feature are particularly conducive to environmental protection.
Description
Technical field
The invention belongs to agricultural technology field, and in particular to a kind of natural pyranocoumarin compound 9,10-
Dihydroxy-8,8-dimethyl-9,10-dihydro-2H, 8H-pyrano [2,3-f] chromen-2-one is used as activity
Composition prepares the purposes of agricultural bacteriocide.
Background technology
The disease of crops due to easily being discovered in time unlike insect and weeds by people, so often resulting in preventing and treating
On ignorance and difficulty, thus its harm just it is even more serious.It is reported that whole world list is the plant disease as caused by disease fungus
Just up to 10,000 kinds, caused loss accounts for the 10%~30% of crop year total losses.If virus, bacterium and nematode etc. are drawn
Including the plant disease risen is also calculated, its loss is just more considerable.
In order to meet people it is growing to grain and other living materials the need for, it has to chemicals is used to protect
Crop is not attacked by harmful organism, and wherein bactericide plays an important role.Natural products with agricultural bactericidal activity, typically
Easily it is absorbed by plants and conducts, it is small to phyto toxicity or pay attention to without poisoning, therefore extremely.
Compound 9,10- dihydroxy-8,8-dimethyl-9,10-dihydro-2H, 8H-pyrano [2,3-f]
Chromen-2-one, molecular formula：C14H14O5, molecular weight:262.258, CAS No：24144-61-4, molecular structure：
The compound is dissolved in the organic solvents such as methanol, ethanol, acetone, ethyl acetate, chloroform.Less is studied to its active function,
So far not as agricultural bacteriocide in the pertinent literature or report agriculturally applied.
The content of the invention
The purpose of the present invention is to explore compound 9,10-dihydroxy-8,8-dimethyl-9,10-dihydro- 2H,
8H-pyrano [2,3-f] chromen-2-one are preparing the application of agricultural bacteriocide as active component.
The present invention proves that the agricultural bacteriocide that this compound is prepared as active component has excellent by numerous studies
Different bactericidal activity, can be applicable to the fungal disease prevented and treated on various crops, such as：Sclerotinia sclerotiorum, rice sheath blight disease, grass
Certain kind of berries gray mold.
Compound 9,10-dihydroxy-8,8-dimethyl-9,10-dihydro-2H, 8H-pyrano [2,3-f]
Chromen -2-one can be isolated and purified from natural plants and obtained, and can also be obtained by chemical synthesis process.It is used as activity
Composition and insecticides adjuvant, excipients are configured to any one formulation allowed on agricultural chemicals.It can also with other agriculture chemical compoundings, with
Insecticides adjuvant, excipients are mixed and made into any one formulation allowed on agricultural chemicals.Described formulation can be missible oil, suspending agent,
Aqueous emulsion, wettable powder, microemulsion or water dispersion granule etc..Auxiliary agent used can using calcium dodecyl benzene sulfonate,
Pyrrolidones, polyoxyethylene polyoxy propylene block compound, NPE etc., excipient can be cyclohexanone, solvent
Oil, solvent naphtha, water, propane diols, deionized water etc..Compounding other agricultural chemicals used can be organic bactericide class, and such as triazole type is killed
Microbial inoculum Triadimenol；Botanical fungicide, such as allicin.
Beneficial effects of the present invention compared with the prior art：Compound 9,10-dihydroxy-8,8-dimethyl- 9,
10-dihydro -2H, 8H-pyrano [2,3-f] chromen-2-one are as bactericide, and antimicrobial spectrum is wide, and the lasting period is long, is agriculture
The bactericide of industry coideal.Learned to farm medicine phases ratio with vague generalization, due to the extract from natural plants, for various grains,
The industrial crops such as melon fruits and vegetables have low toxicity, noresidue, pollution-free, non-harmful feature, the protection of more favorable environment.
Embodiment
Effect of the present invention is described further below by way of embodiment：
Embodiment 1：Compound 9,10-dihydroxy-8,8-dimethyl-9,10-dihydro-2H, 8H-pyrano [2,3-
F] preventing and treatings of the chromen-2-one to agricultural disease
Strains tested sclerotinite (Sclerotioia selerotiorum) isolated from sclerotinia sclerotiorum bacterial strain；Found withered silk
Pyrenomycetes (Thanatephorus cucumeris)Separated from the sick leaf of rice sheath blight disease；Botrytis cinerea (Botrytis cinerea),
Also known as the pathogen of Botrytis cinerea is isolated from grey mould fruit rot of strawberry.
Test compound 9,10-dihydroxy-8,8-dimethyl-9,10-dihydro-2H, 8H-pyrano [2,3-
F] chromen-2-one, it is dissolved in methanol and 1000 μ g/mL mother liquors is made, 4 DEG C saves backup.PDA culture medium:200g is gone
Skin potato is cut into block, boils after 10min, takes juice, adds 20g agar, is heated to fusing, adds 20g glucose, fixed with water
Hold to 1000mL.
The suppression of mycelial growth is determined using mycelial growth rate determination method, preculture supplies examination bacterium from PDA plate
Edge, which is beaten, takes bacterium dish (diameter 5mm), and reagent agent mother liquor is uniformly mixed with culture medium, makes the reagent agent ultimate density be
30ppm, mixed liquor is poured into a diameter of 9cm sterilizing culture dish and flat board is made, and a bacterium dish is inoculated with per ware, and mycelia is face-up, often
Processing is repeated 3 times.When 25 DEG C of cultures to control bacterium colony is covered with culture dish more than 2/3rds, crossing method measurement bacterium colony increases
Diameter.Growth inhibition ratio is calculated by colony diameter average value (mm).
Using Osthole Osthol as positive reference substance, compound 9,10-dihydroxy-8 as can be seen from the results,
8-dimethyl- 9,10-dihydro-2H, 8H-pyrano [2,3-f] chromen-2-one can effectively prevent and treat rape sclerotium
Disease, rice sheath blight disease, grey mould fruit rot of strawberry, specific experiment the results are shown in Table 1；The notable of agricultural chemicals of the present invention has been fully demonstrated by experiment
Effect.
Bacteriostasis rate of the compound of table 1 to agricultural disease
Embodiment 2：
The customary adjuvants such as the compound and lignin, diatomite are weighed according to common process, it is 2% that effective constituent concentration, which is made,
Wettable powder.
Embodiment 3：
The customary adjuvants such as the compound and calcium dodecyl benzene sulfonate, phenethyl phenol polyethenoxy ether, solvent naphtha are weighed according to normal
Rule technique, is made the missible oil that effective constituent concentration is 2%.
Embodiment 4：
The customary adjuvants such as the compound and wooden sodium sulfonate, kaolin are weighed according to common process, effective constituent concentration, which is made, is
2% water dispersible granules.
Embodiment 5：
Weigh the compound and solvent naphtha, pyrrolidones, according to common process active ingredient is made dense in the customary adjuvant such as xanthans
Spend the aqueous emulsion for 1%.
Embodiment 6：
The customary adjuvants such as the compound and calcium dodecyl benzene sulfonate, pyrrolidones are weighed according to common process, be made effectively into
Divide the microemulsion that concentration is 1%.
Embodiment 7：
Compare 1 according to weight：5 ratio weighs the compound and Triadimenol, and with solvent naphtha, pyrrolidones, xanthans etc. is conventional auxiliary
The aqueous emulsion that effective constituent concentration is 5% is made according to common process in material.
Embodiment 8：
Compare 6 according to weight：1 ratio weighs the compound and allicin, and with solvent naphtha, pyrrolidones, xanthans etc. is conventional auxiliary
The aqueous emulsion that effective constituent concentration is 5% is made according to common process in material.
Claims (5)
1. natural angle-pyrancoumarins compound 9,10-dihydroxy-8,8-dimethyl-9,10-dihydro-2H, 8H-
Purposes of pyrano [2,3-f] chromen-2-one as active component in agricultural bacteriocide is prepared.
2. purposes according to claim 1, it is characterised in that this compound is used as active component and insecticides adjuvant, excipients
It is configured to any one formulation allowed on agricultural chemicals；Or this compound is helped as active component and other agricultural chemicals and agricultural chemicals
Agent, excipients are configured to any one formulation allowed on agricultural chemicals.
3. purposes according to claim 2, it is characterised in that described formulation is missible oil, suspending agent, aqueous emulsion, wettable
Pulvis, microemulsion or water dispersion granule；Other described agricultural chemicals are that triazole bactericidal agent Triadimenol or botanical fungicide are big
Allicin.
4. purposes according to claim 1, it is characterised in that described bactericide is used to prevent and treat agricultural fungal evil.
5. purposes according to claim 4, it is characterised in that described agricultural fungal evil is sclerotinia sclerotiorum, paddy rice
Banded sclerotial blight, grey mould fruit rot of strawberry etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385269.XA CN107018983A (en) | 2017-05-26 | 2017-05-26 | A kind of natural angle-pyrancoumarins compound as agricultural bacteriocide purposes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710385269.XA CN107018983A (en) | 2017-05-26 | 2017-05-26 | A kind of natural angle-pyrancoumarins compound as agricultural bacteriocide purposes |
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| CN107018983A true CN107018983A (en) | 2017-08-08 |
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| CN201710385269.XA Withdrawn CN107018983A (en) | 2017-05-26 | 2017-05-26 | A kind of natural angle-pyrancoumarins compound as agricultural bacteriocide purposes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113632799A (en) * | 2020-04-27 | 2021-11-12 | 兰州大学 | Application of praeruptorin A in preventing and treating agricultural diseases |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105213364A (en) * | 2015-11-12 | 2016-01-06 | 江苏康缘药业股份有限公司 | The application of khellactone |
-
2017
- 2017-05-26 CN CN201710385269.XA patent/CN107018983A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105213364A (en) * | 2015-11-12 | 2016-01-06 | 江苏康缘药业股份有限公司 | The application of khellactone |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113632799A (en) * | 2020-04-27 | 2021-11-12 | 兰州大学 | Application of praeruptorin A in preventing and treating agricultural diseases |
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Application publication date: 20170808 |
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