13 results about "Striga asiatica" patented technology

The present application belongs to the technical field of tobacco leaf fertilizer, and provides a tobacco leaf fertilizer for improving oil content and anti-epidemic ability of tobacco leaves, which comprises water and active ingredients, wherein the active ingredients comprise the following components in parts by weight: 240-300 parts of sodium humate, 40-60 parts of potassium nitrate, 15-30 parts of magnesium sulfate heptahydrate, 1-2 parts of striga lactone, 5-8 parts of N-succinylated chitosan, and 1000-1400 parts of tobacco stem enzymolysis fermentation product. The leaf fertilizer can significantly improve the oil content of tobacco leaves, and the required content of active ingredients is low when the leaf fertilizer is applied, thereby reducing the application cost. Meanwhile, the leaf fertilizer can also significantly improve the disease control ability of tobacco, and has good popularization and application value.

The application discloses strigasiaticaside A and an extraction method and application thereof, and finds, through chemical component research on the whole grass of striga asiatica, a new synbinaphthyl tetrahydrofuran lignan glycoside, that is, strigasiaticaside A, identifies the chemical structure of the new compound through nuclear magnetic resonance, mass spectrometry, ultraviolet, infrared and circular dichroism spectrum technology.The structure of the new compound is identified as (-) sesamin-5-O-beta-D-glucopyranoside.The anti-hepatitis activity of the new natural product is evaluated by using LPS stimulated HepG2 cells.The results show that when the concentration is 100 muM, the compound has a significant inhibitory effect on the production of inflammatory factors IL-10 and NF-kappa B protein, and has no cytotoxicity, indicating that the compound may have potential anti-hepatitis activity.

The invention belongs to the technical field of traditional Chinese medicine, and particularly relates to a traditional Chinese medicine composition for treating children spleen and stomach weakness and a preparation method and application thereof. The traditional Chinese medicine formula provided by the invention is good in taste, and effectively solves the problem that children are difficult to take traditional Chinese medicines; the traditional Chinese medicine composition is prepared from Xiaojianzhong decoction, striga asiatica and fructus amomi, is high in clinical application safety and has a remarkable treatment effect on various diseases caused by weakness of the spleen and the stomach of children.

The invention belongs to the technical field of tobacco leaf fertilizer. The invention provides a tobacco leaf fertilizer for improving oil content and epidemic disease resistance of tobacco leaves, the tobacco leaf fertilizer comprises water and active components, the active components comprise the following components in parts by weight: 240-300 parts of sodium humate, 40-60 parts of potassium nitrate, 15-30 parts of magnesium sulfate heptahydrate, 1-2 parts of strigolactone, 5-8 parts of N-succinylated chitosan, and 1000-1400 parts of tobacco stem enzymolysis leavening. The leaf fertilizer provided by the invention can obviously increase the oil content of tobacco leaves; when the foliar fertilizer is applied, the content of required active ingredients is low, and the application cost is low. Meanwhile, the foliar fertilizer disclosed by the invention can also be used for remarkably improving the prevention and treatment capability of tobacco on diseases, and has relatively good popularization and application values.

The invention discloses a growth regulation composition for relieving continuous cropping obstacles of cucumbers and application of the growth regulation composition, and belongs to the technical field of plant growth regulation. The growth regulation composition is prepared from a chelating dopamine solution and a strigolactones solution, the chelated dopamine solution is a double-ligand chelated dopamine solution, and the preparation method comprises the following steps: uniformly mixing a zinc ion solution and an ethylenediamine tetraacetic acid salt solution, and then adding a dopamine solution, thereby obtaining the zinc ion / ethylenediamine tetraacetic acid complex. The striga lactone is dissolved in acetone, and deionized water is added for dilution to obtain a striga lactone solution. A 50 [mu] mol.L <-1 > chelated dopamine solution is applied to roots and a 1.0 [mu] mol.L <-1 > strigolactones solution is sprayed to leaf surfaces for cooperative treatment, so that the absorption rate of cucumbers to moisture and nutrient substances in soil can be remarkably improved, dry substances can be accumulated, and the tolerance of cucumber bodies to a continuous cropping mode is enhanced. The composition is small in dosage, low in cost and suitable for green prevention and control of continuous cropping obstacles of greenhouse cucumbers.

Aspects of the present disclosure relate to methods of cultivating genetically altered plants with increased activity of one or more of a NODULATION SIGNALING PATHWAY 1 (NSP1) protein or a NODULATION SIGNALING PATHWAY 2 (NSP2) protein that have increased mycorrhization and / or promoted symbiotic responses under high phosphate and / or high nitrate conditions. Further aspects of the present disclosure relate to methods of cultivating genetically altered plants with increased activity of a C-TERMINALLY ENCODED PEPTIDE (CEP peptide) that have increased mycorrhization and / or promoted symbiotic responses under high phosphate and / or high nitrate conditions. In addition, aspects of the present disclosure relate to methods of cultivating these plants that include exogenous application of strigolactones, karrikins, and / or CEP peptides to increase mycorrhization and / or promote symbiotic responses under specific nutrient conditions.

The invention belongs to the technical field of artificial cultivation of plants, and particularly relates to a simple, convenient and efficient seedling raising method for boea cavaleriei and application thereof. The seedling culture method comprises the following steps: adding disinfected boea cavaleriei seeds and strigolactones analogue solution into a 1 / 2 MS culture medium for seed culture to obtain boea cavaleriei seedlings; the concentration of the striga lactone analogue solution is 0.1 to 10 [mu] mol / L; the volume ratio of the strigolactone analogue solution to the 1 / 2 MS culture medium is (1-3): 15; placing the black boea cavaleriei seedlings in a new 1 / 2MS culture medium, and performing seedling culture to obtain black boea cavaleriei seedlings; in the 1 / 2MS culture medium, the mass volume concentration of the cane sugar is 0.5%-2%. The seedling raising method is easy to operate and low in cost, the germination rate and the seedling rate of the black boea mellea seeds can be greatly increased, the seedling raising period is shortened, and a solid foundation is laid for breaking through the technical bottleneck of artificial cultivation and production of black boea mellea and achieving industrial development of the black boea mellea.

The invention belongs to the technical field of plant growth regulators, and particularly relates to a five-membered azacycloindole compound and application thereof in preparation of strigolactone inhibitors. The synthesized five-membered azacyclo-indole compound can be applied to preparation of strigolactones inhibitors, can significantly promote tillering of rice, and has an obvious inhibition effect on germination of various parasitic weed seeds induced by strigolactones, including striga formosana, Orobanche cucurbitae, Orobanche helianthi and the like. The characteristics show that the five-membered azacycloindole compound can be used as a potential plant growth regulator and has a wide prospect in agricultural application.

The application belongs to the technical field of plant genetic engineering, and particularly relates to application of GhDWARF27 gene in regulation of plant verticillium wilt resistance and breeding of verticillium wilt resistant plants. The application discloses that application of GR24, an artificial synthetic analogue of strigolactone (SLs), or overexpression of a SLs biosynthesis gene GhDWARF27 can improve the resistance of plants to verticillium wilt, and silencing of the GhDWARF27 gene can result in reduction of SLs content in roots of the plants and reduction of the resistance of the plants to verticillium wilt. SLs can activate expression of JA response related genes through JA and ABA biosynthesis and signal pathways, and can enhance the resistance of the plants to verticillium wilt in an ABA dependent manner by enhancing the activity of antioxidant enzymes. The technical scheme and molecular mechanism of SLs for enhancing the resistance of cotton to verticillium wilt will provide a new approach for cotton breeding and prevention of cotton verticillium wilt.

Disclosed herein are compounds and methods for regulating plant growth and / or combating root parasitic plants. Formulations containing one or more disclosed compounds or salts thereof, and one or more excipients are disclosed. Methods for regulating plant growth typically includes applying one or more formulations to a plant, a plant part, or a growing site of plant, where the one or more compounds or salts thereof can be in an effective amount to inhibit tillering, trigger senescence, and / or cause stunted growth of the plant. The plant can be a cereal, grain, or vegetable plant. Methods for combating root parasitic plants typically includes applying one or more formulations to a root parasitic plant, a plant part of root parasitic plant, or a growing site of root parasitic plant, where the one or more compounds or salts thereof can be in an effective amount to induce parasitic seed germination.

The application provides a method for regulating the aroma of grape fruits by an exogenous plant growth regulator, and utilizes methyl jasmonate, phenylalanine and strigolactone to spray 'Hanxiangmi' grape fruits with rich rose fragrance, and analyzes the aroma composition and content of the treated grape fruits. The results show that the rose fragrance intensity of 'Hanxiangmi' grape is enhanced after methyl jasmonate treatment; after strigolactone treatment, the components such as alpha-terpineol, beta-ionone, nonanoic acid and geraniol in the grape fruits are prominent, so that the treated grape is changed into mixed type grape with flower fragrance, fruit fragrance and grass fragrance, and the aroma is rich in layers; and the treatment effect of phenylalanine is not obvious. The application provides a reference for the research of strigolactone on fruit quality.

The invention discloses a strigolactones-based formula for promoting symbiosis of arbuscular mycorrhizal fungi, and relates to the technical field of agricultural biology.The strigolactones-based formula comprises an active composition composed of the following components and an agriculturally acceptable carrier, the strigolactones signal substance comprises ent-5-deoxystrigool stereoisomers with biological activity, and the content of the ent-5-deoxystrigool stereoisomers accounts for more than 80% of the total mass of the signal substance; the biological surface active agent is one or more of rhamnolipid, sophorolipid and tea saponin; according to the strigolactones-based formula for promoting symbiosis of arbuscular mycorrhizal fungi, the lowest content (gt; gt) of high-activity ent-5-deoxystrigolactones stereoisomers in strigolactones signal substances is limited; 80%) of the core signal molecules, and a specific type of biosurfactant (rhamnolipid, sophorolipid or tea saponin) is cooperatively used, so that the transmission efficiency and the interface contact effect of the core signal molecules are improved.

The invention discloses an application of strigolactone in promoting symbiosis of arbuscular mycorrhizal fungi, and relates to the field of agricultural microorganisms, and an effective amount of strigolactone or a derivative thereof is combined with at least one arbuscular mycorrhizal fungi propagule for use; wherein the use concentration of the striga asiatica lactone is 0.01 nM to 10 M; according to the application of strigolactone in promoting symbiosis of arbuscular mycorrhizal fungi, through a Tween-20-containing solution carrier and a combined application mode, the activity of strigolactone is effectively protected, the action time of strigolactone is prolonged, the defect that strigolactone is easy to degrade is overcome, and the stability and repeatability of a field application effect are guaranteed.