81 results about "Strigolactone" patented technology

The present invention discloses a rice tillering associated protein, the encoding gene and the use thereof. The protein is selected from the following proteins (a) and (b): (a) a protein which is composed of the amino acid sequence represented by the sequence 4 in the sequence table; (b) a protein which is associated with the plant tillering and is derivate from the protein (a) through substituting and/or deleting and/or adding one or a plurality of amino-acid residues to the amino acid sequence represented by the sequence 4 in the sequence table. The transgene complementation test proves that the protein D27 coded by the gene participates in the synthesizing of the strigolactone and regulates the plant tillering or the branch stem developing. Therefore, the genetic engineering technology can be used for regulating the tillering trait of the rice, regulating the nutrition using efficiency of the plant and effectively controlling the destructive parasitic weed. The D27 gene has important application value in the aspect of researching the beneficial fungus association and the destructive parasitic weed in the agriculture and natural ecosystem.

The invention relates to the field of medicine chemistry, and specific discloses application of a strigolactone analog in preparation of an anti inflammatory medicine. The anti-inflammatory activity of the strigolactone analog is found for the first time, and anti-inflammatory activity of two GR24 optical isomers are especially significant.

The invention discloses an application of strigolactone in alleviating cadmium toxicity of cadmium stress to plants and belongs to the field of governance of heavy metal pollution in soil in environmental protection and safety of agricultural products. The invention provides an agent for reducing cadmium accumulation in barley. The active component of the agent is strigolactone GR24, and the effective action concentration is 0.1 [mu]M. The invention also provides a method of reducing cadmium accumulation in barley in a condition of cadmium stress. The method comprises the following steps: transplanting barley seedlings cultured to a two-leaf stage to a plant growth medium with the strigolactone GR24; and culturing the seedlings till being harvested. The application finds that strigolactonecan alleviate cadmium toxicity of plants in the cadmium stress condition for the first time, and is applied to production of crops to control and reduce cadmium pollution of the crops, so that influence of heavy metal pollution of soil in safe production of quality of agricultural products is avoided.

The invention discloses a method for promoting single-needle algae accumulated grease by nitrogen deficiency combined with strigolactones. Single-needle algae is cultivated through two stages. The method for promoting the single-needle algae accumulated grease by the nitrogen deficiency combined with the strigolactones comprises the following steps that firstly glucose is used as an organic carbonsource to heterotrophically cultivate the single-needle algae to a logarithmic phase later period to collect algae cells; then autotrophy anazotic BG-11 is used as an inducing culture medium of a second stage to renewedly suspend the algae cells to be used as inducing algae liquid; 1mmol/L strigolactones (SLs) mother solutions are prepared by acetone, the strigolactones (SLs) mother solutions areadded into the inducing algae liquid to dilute the strigolactones (SLs) mother solutions to the concentration of 1[mu]mol/L, and the algae liquid is placed in a shaking table for lighting cultivating; and the algae cells cultivated to a stable phase are enriched by a centrifugal separation method, grease is extracted, and methyl esterification is carried out to prepare biodiesel. The method for promoting the single-needle algae accumulated grease by the nitrogen deficiency combined with the strigolactones is simple and practicable, can greatly shorten the cultivated time of the oil-producingsingle-needle algae, obviously increases the grease yield, and thus, greatly improves the efficiency of microalgae for producing the biodiesel.

The invention discloses a method for inhibiting growth and development of tomato lateral branches. The method comprises the steps of performing exogenous coating treatment on tomato plants by use of a strigolactone solution having the concentration of 7.5-10.0Mumol.L-1, or performing exogenous injection treatment on the tomato plants by use of a strigolactone solution having the concentration of 2.5-5.0Mumol.L-1, or soaking the root system of the tomato seedlings into a strigolactone solution having the concentration of 10-20Mumol.L-1 for 20-24 hours 1-2 days before seedling field planting. The exogenous coating treatment and the exogenous injection treatment both are performed on the axils of the main steam branch parts of the tomato, and the dosage is 10MuL. The method is capable of remarkably inhibiting the growth and development of the tomato lateral branches, reducing the labor consumption and the propagation of plant diseases and insect pests, promoting the growth of plants and improving the yield and the quality, has the characteristics of simple operations and no pollution, and is suitable for cultivating open field tomatoes and facility tomatoes.

A pesticide composition containing the forchlorfenuron, Strigolactone and gamma-aminobutyric acid comprises the following components in percentage by weight: 0.05 to 10% of the forchlorfenuron, 0.001to 1% of the Strigolactone, 0.05 to 5% of the gamma-aminobutyric acid, 0.5 to 10% of an auxiliary agent, 10 to 40% of a solvent and the balance of water. The pesticide composition can obviously improve the average single fruit weight of kiwifruit, obviously increases the economic value of per mu yield, obviously improves the storage stability at normal temperature, and can be sprayed.

The invention provides a beauveria bassiana dispersible oil suspending agent and an efficient use method thereof. Strigolactones are added into the beauveria bassiana Bb455 dispersible oil suspending agent, and spore germination of the beauveria bassiana can be effectively promoted. A special auxiliary agent for the beauveria bassiana Bb455 can be completely compatible with beauveria bassiana Bb455 spores, has no influence on spore germination, improves the wetting performance and the adhesion performance of the beauveria bassiana Bb455 dispersible oil suspending agent on a target when the beauveria bassiana Bb455 dispersible oil suspending agent is applied, and improves the adhesion rate and the infection rate of the beauveria bassiana Bb455 on target pests, so that the pest killing speed and the prevention and treatment effect are improved.

The invention relates to the technical field of planting, and particularly discloses an alkali stress treatment agent and a preparation method and application thereof. The alkali stress treatment agent is prepared from brassinolide, melatonin and strigolactones, damage of alkali stress to plants can be effectively relieved through cooperative use of the brassinolide, melatonin and strigolactones, the problems that most of existing methods for relieving damage of alkali stress to plants are achieved by improving soil, the environment is easily polluted, and soil hardening is caused are solved. The provided preparation method is simple, the prepared alkali stress treatment agent can adapt to local conditions and efficiently solve the influence of soil alkalization on plant growth, the alkali stress resistance of plants can be improved when the alkali stress treatment agent is applied to leaf surfaces and/or roots of the plants, and the alkali stress treatment agent has wide market prospects.

The invention discloses a melon water culture formula, which comprises the following steps that in the water culture formula, per 1000 kg of water contains 500 to 600 g of calcium nitrate, 400 to 500g of potassium nitrate, 250 to 350 g of magnesium sulfate, 50 to 150 g of ammonium dihydrogen phosphate, 20 to 40 g of chelate iron, 3 to 5 g of boracic acid, 1 to 3 g of manganese sulfate, 0.1 to 0.3g of zinc sulfate, 0.05 to 0.15 g of copper sulfate, 0.01 to 0.05 g of ammonium molybdate, 0.01 to 0.1 g of strigolactone, 0.01 to 0.1 g of brassinolide, 0.1 to 0.3 g of wood vinegar, 0.2 to 0.4 g ofcopper hydroxide, 0.01 to 0.1 g of iturin, 0.1 to 0.3 g of microbial agents and 0.1 to 0.5 g of chitosan. The formula is applied to melon culture, and has the advantages of high fertilizer absorptionspeed, good disease resistant performance, good growth condition, high yield and low cost.

The invention discloses an application method of a novel compound in improvement of soil acid stress resistance of plants, and relates to the technical field of novel compounds of soil acid stress resistance of plants, and the effective component of the compound is a mixed solution of BR and strigolactones. According to the novel compound for improving soil acid stress resistance of plants and thepreparation method thereof, a product with a certain concentration of BR and strigolactones as effective components is sprayed to roots of plant seedlings or to leaves of the seedlings, plant growthcan be promoted, the acid stress resistance of the plant is enhanced, the growth condition of the plant under acid toxicity stress can be obviously improved, and the acid stress resistance of the plant is obviously improved so that the problem that the yield and quality of crops are reduced due to acid stress is effectively solved.

The invention discloses to a method of screening mutants being insensitive to strigolactone. The method includes the steps of: 1) processing of wile-type arabidopsis thaliana seeds: A) weighing seeds and washing the seeds in distilled water; B) adding ethylmethane sulfonate and uniformly mixing the components in a fume cupboard; C) pouring processed ethylmethane sulfonate in NaOH and cleaning the seeds; D) placing the cleaned seeds in an agar solution and moving the seeds into soil by means of a pipette gun for growth; 2) screening of the mutants being insensitive to strigolactone: A) when the seeds are matured, harvesting the seeds and placing the seeds in a centrifugal tube, and disinfecting the seeds with a bleaching agent solution and placing the seeds in a refrigerator; B) sowing the seeds on an AT culture medium containing the strigolactone by means of the pipette gun; C) irradiating the culture dish, and placing the culture dish in a dark place so that the seeds are germinated; and D) selecting a long-root-system arabidopsis thaliana mutant single plant and transplanting the single plant in soil. The method has simple operations and short screening period, and can quickly and high-effectively screen the arabidopsis thaliana mutants being insensitive to the strigolactone.