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77 results about "Betula platyphylla" patented technology

Betula platyphylla, the Japanese white birch or Siberian silver birch, is a tree species belonging to the genus Betula. It can be found in temperate or subarctic places of Asia: Japan, China, Korea and Siberia. The Japanese White Birch can grow to be 20 m to 30 m tall.

Method for promoting accumulation of triterpene in betula platyphylla suk. suspension cell by utilizing endophytic fungi elicitor

The invention provides a method for promoting accumulation of triterpene in betula platyphylla suk. Suspension cell by utilizing endophytic fungi elicitor. The method utilizes endophytic fungi separated from betula latyphylla suk. bark, the endophytic fungi is prepared into fungi elicitor, appropriate concentration of fungi elicitor is added in appropriate stage of betula platyphylla suk. suspension cell growth, after induction is carried out for a period of time, cells are collected, and endophytic fungi capable of effectively improving accumulation of triterpene is screened out as phomopsis sp. On the basis, induction effect of polysaccharide elicitor and protein elicitor prepared by the fungi is further optimized; 40Mug/ml of polysaccharide elicitor is added on the eighth day of betula platyphylla suk. cell culture, triterpene content in cell after induction for one day reaches up to 29.47mg/g, being 1.78 times that of the control group; 80Mug/ml of fungus protein elicitor is added on the eighth day of betula platyphylla suk. cell culture, induction culture is carried out for four days, and triterpene content in cell reaches up to 34.49mg/g, being 2.47 times that of the control group. In the invention, the type and concentration of the added elicitor, growth stage of betula platyphylla suk. suspension cell added with appropriate elicitor and induction time of elicitor are determined, induction technology of effectively improving accumulation of triterpene in betula platyphylla suk. suspension cell is formed, and important theory and technical basis are laid for betula platyphylla suk. triterpene production by utilizing cell engineering technology, thus the invention has wide application potential and promotion prospect.
Owner:NORTHEAST FORESTRY UNIVERSITY +2

Method suitable for treating plateau stony desertification under photovoltaic panels

The invention discloses a method suitable for treating plateau stony desertification under photovoltaic panels. Festuca ovina l. is planted within the scope 10m away from the photovoltaic panels and under the photovoltaic panels; the plantation mode of festuca ovina l. is seed sowing; sweet osmanthus or tea trees are planted in the scope from 10 to 20m away from the photovoltaic panels, wherein the plantation mode of sweet osmanthus or tea trees is seedling planting, and Betula platyphylla is planted at the place 20m beyond the photovoltaic panels; before seed sowing or seedling growing, 80 to 600g/m2 fertilizer is applied on the soil surface; before seed sowing or seedling growing, the seed sowing and seedling growing areas are watered. According to the method of the invention, fertilizer is applied before planting, well-adapted and drought tolerant sweet osmanthus or tea trees, festuca ovina l. and Betula platyphylla are selected and forestation modes of directed seeding or seedling growing are adopted to recover the land surface vegetation, reduce soil loss and land degeneration, increase survival rate of seedlings, and block fierce wind and severe cold; multiple tree species three-dimensional mixed pattern is formed to treat the plateau stony desertification under photovoltaic panels; the method is suitable for large-scale promotion.
Owner:云南云创数字生态科技有限公司

A BpSPL9 gene of betula platyphylla Suk., an encoding protein thereof and applications of the gene

InactiveCN106868018AImprove the ability to resist adversity and stressHigh activityPlant peptidesGenetic engineeringHalotoleranceBetula platyphylla
The invention relates to a BpSPL9 gene of betula platyphylla Suk., an encoding protein thereof and applications of the gene and discloses the BpSPL9 gene of betula platyphylla Suk., the encoding protein thereof and the applications of the gene. The objective of the invention is to provide the BpSPL9 gene of betula platyphylla Suk., the encoding protein thereof and the applications of the gene. The nucleotide sequence of the gene is shown as SEQ ID NO:1 in a sequence table, and an amino sequence is shown as SEQ ID NO:2 in the sequence table. The gene can enhance adversity stress resistance of plants. An agrobacterium-tumefaciens-mediated leaf disc transformation method is utilized to perform genetic transformation of the betula platyphylla Suk., obtained transgenic betula platyphylla Suk. plants are subjected to salt resistance and drought tolerance analysis, and results show that the gene can enhance salt resistance and drought tolerance of the betula platyphylla Suk.. Through the gene, the encoding protein and the applications, a novel BpSPL9-transgenic betula platyphylla Suk. variety that is salt-resistant and drought-tolerant can be cultivated. The gene, the encoding protein and the applications are applied in the field of forest tree molecular breeding.
Owner:NORTHEAST FORESTRY UNIVERSITY

Conditioning cream prepared by Chinese herb medicine extract superfine powder and with functions of acne removing and whitening and preparation method of conditioning cream

The invention discloses a conditioning cream prepared by Chinese herb medicine extract superfine powder and with functions of acne removing and whitening and a preparation method of the conditioning cream. The effective constituents of the conditioning cream comprise, by weight, 20-65 parts of azalea leaf extract, 18-60 parts of hamamelis virginiana extract, 15-55 parts of fructus rubi extract, 10-40 parts of white willow bark extract, 10-45 parts of betula platyphylla bark extract, 10-35 parts of centella asiatica extract, 8-30 parts of herba leonuri extract, 8-30 parts of radix glycyrrhizae extract, 6-20 parts of bletilla striata extract, 6-20 parts of radix ampelopsis extract, 5-15 parts of tribulus terrestris extract, 4-15 parts of salviae miltiorrhizae extract, 4-15 parts of fructus gardeniae and 5-12 parts of pearl powder. The conditioning cream prepared by the Chinese herb medicine extract superfine powder and with the functions of acne removing and whitening has the advantages that the conditioning cream is good in effect, safe and practical, raw material particle size is decreased evidently to allow the particle size to be 3.1-12.5 micrometers, namely 400-1000 mesh by performing superfine grinding on the coarse powder of Chinese herbal medicine extract, sufficient percutaneous absorption is achieved, and an ideal effect is brought into play.
Owner:金建文

Rapid propagation method of wild betula platyphylla suk

The invention provides a rapid propagation method of wild betula platyphylla suk. The rapid propagation method comprises the following steps: 1) obtainment of the stem explant of the wild betula platyphylla suk; 2) inducing culture of the stem explant of the wild betula platyphylla suk; 3) enrichment culture of clustered shoots of the wild betula platyphylla suk; 4) rooting culture of the wild betula platyphylla suk: at the first stage, firstly culturing single shoots cut from the clustered shoots in a first rooting culture medium, putting the single shoots under 2800-3000Lux and illuminating the single shoots for 20 hours everyday to culture the single shoots until the single shoots root for 8-10 days; at the second stage, transferring the single shoots to a second rooting culture medium to be cultured for 20-30 days until good root systems grow; 5) hardening and transplanting of wild betula platyphylla suk tissue culture seedlings: carrying out hardening under normal temperature for 7-10 days and then transplanting the seedlings to a substrate to be cultured for 30-35 days, thus obtaining rapid propagation seedlings of the wild betula platyphylla suk; 6) transplanting: transplanting the seedlings to planting sites. The problems that the wild betula platyphylla suk is difficult in tissue culture and rooting and has low rooting rate are solved by adopting the rapid propagation method.
Owner:LIAONING UNIVERSITY

Potted cultivation method for centella asiatica

The invention relates to the technical field of planting industry and particularly relates to a potted cultivation method for centella asiatica. The method comprises the steps of scissoring creeping stems of wild centella asiatica in March every year, adding 2-5 parts of glucose, 0.01-0.03 part of magnesium sulfate and 3-5 parts of aspirin into every 100 parts of silver birch juice so as to obtain a rooting solution, soaking cuts of the creeping stems of the wild centella asiatica in the rooting solution for 10-15 days, mixing garden soil, coarse sand, sawdust, humus soil, egg-shell meal, feather meal and plant ash according to the weight ratio of 5: 1: 1: 3: 1: 1: 1 so as to obtain soil for cultivation, spreading the soil for cultivation and sphagnum moss, which are in the volume ratio of 4: 0.5, into each cultivation pot in a layered manner from bottom to top sequentially, planting the creeping stems of the wild centella asiatica in cultivation pots according to a ring shape in a manner that the spacing among rings is 5-7cm and 5-10 creeping stems of the wild centella asiatica are subjected to stem planting per 0.01 square meter, and placing the cultivation pots at a shady place with the cultivation shade rating of 50-70% after stem planting.
Owner:QUANJIAO TAOHUAWAN FRUIT & VEGETABLE PLANTATION SPECIALIZED COOP

Correction method for measuring leaf area index by use of plant canopy analyzer

The invention provides a correction method for measuring a leaf area index by use of a plant canopy analyzer, relates to a correction method for measuring the leaf area index and aims at solving the problem that the existing measuring method by use of the LAI-2000 plant canopy analyzer is limited and low in leaf area index estimation accuracy. The correction method is used for obtaining an LAI value by use of the LAI-2000 plant canopy analyzer; correction is based on a formula as shown in the description; in the formula, L represents the LAI numerical value after correction and Le represents the LAI numerical value before correction; alpha, omega E and gamma E in the formula are correction coefficients, wherein alpha is the proportion of a lignin index in the total LAI, and the values of alpha of an artificial Korean pine forest and a betula platyphylla secondary forest are 0.03 and 0.04, respectively; omega E is a crowding index, and the values of omega E of the artificial Korean pine forest and the betula platyphylla secondary forest are 0.95 and 0.87, respectively; gamma E is a needle-cluster ratio. The correction method for measuring the leaf area index by use of the plant canopy analyzer takes the influence of the crowding effect into account and is comprehensive in the range of consideration, and the obtained data are true and reliable.
Owner:NORTHEAST FORESTRY UNIVERSITY

Efficient betula platyphylla root transgenic method

The invention relates to an efficient betula platyphylla root transgenosis method, and belongs to the technical field of plant transgenosis. In order to solve the problems of long culture period, long transformation period and low efficiency of explants of an existing betula platyphylla transgenosis system, the invention provides an efficient betula platyphylla root transgenosis method which comprises the following steps: selecting betula platyphylla roots with root tiller reproductive capacity as a transgenosis material; the method comprises the following steps: culture of white birch roots, genetic transformation of agrobacterium carrying a target gene, induction of callus formation through co-culture, induction of adventitious bud formation through resistance screening, and finally formation of a complete plant through induction. Compared with an existing betula platyphylla transgenosis method, the method has the advantages that the transformation period is shortened, the transformation efficiency is improved, the difficulty in explant selection is avoided, the genetic background of transgenic offspring plants is unified, the utilization rate of materials is improved, and the problem of difficulty in degerming is further solved. The efficient betula platyphylla root transgenic method provided by the invention is simple to operate and easy to master.
Owner:NORTHEAST FORESTRY UNIVERSITY
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