469 results about "Hevea brasiliensis" patented technology

The present disclosure provides for a formula and process for making elastomeric rubber thin film articles. In particular, the formula and process is a system which produces non-Hevea or Guayule natural rubber latex (GNRL) thin film articles which have a thickness of 30-80 microns (0.03-0.08 mm), and preferably less than 40 microns (0.04 mm). These thin film articles exhibit physical strength properties similar to that of Hevea brazilensis natural rubber latex (NRL). More specifically, the disclosed thin rubber thin film articles exhibit unaged tensile strength of at least 24 MPa (about 3500 psi) and aged tensile strength of at least 19 MPa (about 2800 psi).

The invention provides application of rubber tree seed oil and a preparation method of the rubber tree seed oil, and in particular relates to the application of the rubber tree seed oil which is used as base oil in skin care products. The rubber tree seed oil is prepared through the steps of raw material screening, drying, shelling, cold pressing, filtering, water vapor stripping and the like. Utilization of the rubber tree seed oil as the base oil has the advantages of refreshing, easiness in absorption, good stability, obvious skin protection effects, low price, long storage and quality guarantee period and the like. The preparation method of the rubber tree seed oil, provided by the invention, has the advantages that the oil extraction rate is high, the nutritional substances in the oil cannot be damaged, the production cost is low, and no unboiled oil flavor exists. If the rubber tree seed oil is used as the base oil and pure essential oil is also added, various essential oil skin care products which are refreshing, non-greasy and easy to absorb, have specific effects of the pure essential oil, contain no chemical additive and are 100 percent purely natural can also be developed.

The invention relates to a preparation for preventing and treating tapping panel dryness of rubber trees, which comprises the following components. The invention further relates to a preparation method and the application of the preparation. The preparation provided by the invention is a major breakthrough at home and abroad in the field of resurrection of tapping panel dryness of rubber trees currently. The preparation aims to blend nutrition of rubber trees, so that after the rubber trees absorb nutrition, antibodies are strengthened and dead skin is gradually recovered, and thus, rubber is normally discharged and yield of the rubber trees in China is improved.

The present invention refers to a topical formulation containing natural latex or fraction thereof, for topical application, aiming to provide skin regeneration. It particularly refers to a formulation comprising latex from plants of the families Euphorbiaceae, such as Hevea brasiliensis, Apocinaceae, such as guava and sorb, Compositae such as guayule, Caricaceae such as papaya, or one of its fractions, whose topical application provides the skin with regeneration benefits, such as whitening or elimination of senile spots, increase in turgor, improved texture, shine and resilience

The present invention cloned a cDNA clone encoding isopentenyl diphosphate (hereafter "IPP") isomerase (EC 5.3.3.2) from a cDNA library of Hevea brasiliensis latex. The clone has a continuous open reading frame encoding a peptide of 234 amino acids with a predicted molecular mass of 26.7 kDa. The deduced protein is acidic with an isoelectric point of 4.7 and shows high sequence identity with other IPP isomerases. The recombinant protein expressed in Escherichia coli showed IPP isomerase activity. In vitro rubber biosynthesis assays using washed rubber particle (WRP) deprived of initiating allylic diphosphates were performed with the addition of IPP isomerase in the reaction mixture. Results revealed that the recombinant IPP isomerase is catalytically active in catalyzing the conversion of IPP to DMAPP, a key activation step of the basic five-carbon isoprene unit in rubber biosynthesis. Southern analysis indicated that the IPP isomerase is encoded by two genes in Hevea rubber tree. In Northern blot analysis, two different sizes of transcripts (1.2 and 0.6 kb) were detected from leaf tissues while only one hybridizing band (1.0 kb) was detected from latex. Analyses of RNA extracted from extruded latex and leaf tissues of the trees wounded with nails showed that wounding did not change the transcript level of IPP isomerase.

The invention relates to a special slow release water soluble fertilizer for a rubber tree and a preparation method of the fertilizer. The fertilizer comprises the following raw materials in parts: 100-120 parts of urea, 40-60 parts of diammonium phosphate, 40-60 parts of calcium superphosphate, 60-80 parts of potassium nitrate, 60-90 parts of potassium chloride, 15-20 parts of chelated medium trace elements, 4-8 parts of sodium borate, 5-10 parts of soluble organic matters and 6-10 parts of small molecular hydrogel material. The invention further relates to the preparation method of the water soluble fertilizer. The special slow release water soluble fertilizer provided by the invention is complete in nutrition. Potassium nutrient has a slow release property. The fertilizer contains amino acid chelated medium trace elements and further contains 1.52-2.18% of organic matters, so that the fertilizer meets the nutrient cycling rule and the nutrient adsorption rule of the ecological system of a rubber forest, has promoting and adjusting effects on growth and latex production of rubber trees, can be used for effectively reducing the morbidity of dead skin of the rubber trees and improving the planting benefit of the rubber trees, and the utilization of the fertilizer efficiency of the water soluble fertilizer is improved.

The invention relates to a nutrition agent for healing of a rubber tree. The adopted technical scheme for solving the technical problems is as follows: the nutrition agent is composed of 1g-10g marine algae, 1g-12g sorbic acid, 50-80 ml alcohol, 10g-30g sodium benzoate, 1g-22g sodium metasilicate, 1g-25g sodium pyrosulfite, 3g-36g boric acid and 1g-23g citric acid. The nutrition agent for healingof the rubber tree has the following beneficial effects: after tapping off the rubber from the rubber tree, the tapped part is coated with the nutrition agent for healing of the rubber tree, so that the rubber tree is protected from invasion of noxious bacteria and pathogenic mycete, various fungi are killed, and nutrition is supplemented for the rubber tree, and the tapped part can be healed quickly. In this way, the yield of the rubber tree is improved, and simultaneously, the growth cycle of the rubber tree is prolonged. Many tests prove that the nutrition agent has very obvious effect.

The invention provides a cutting mechanism and method for collecting natural rubber at a high position. The cutting mechanism for collecting the natural rubber at the high position is arranged on a trunk part, higher than the normal body height, of a rubber tree. The cutting mechanism comprises a cutting mechanism body and a fixing assembly. The rubber tree is sleeved with the fixing assembly, andthe cutting mechanism is arranged on the fixing assembly. The cutting mechanism body comprises a spiral sliding way, a scraper, a sliding block, a connecting rod, a threaded rod, a fixing sleeve, a handle and a connecting block. According to the cutting mechanism and method for collecting the natural rubber at the high position, through cooperation of the spiral sliding way, the scraper, the sliding block, the connecting rod, the threaded rod, the fixing sleeve, the handle and the connecting block, the selection range of the rubber tapping position can be expanded; meanwhile, a certain periodof time can be reserved for self-repairing of bark tissues damaged after rubber tapping at a low position originally, so that the growth efficiency of the rubber tree is improved, and meanwhile, thehealth state of the rubber tree is guaranteed; and therefore, the rubber production efficiency is indirectly improved.

The invention discloses a trichoderma harzianum strain and application thereof. The trichoderma strain is a trichoderma harzianum strain Hb13-3-2 CGMCC No. 13163. The strain and metabolites thereof have broad-spectrum activities of inhibiting pathogenic fungi. The contrast growth experiment proves that the trichoderma harzianum strain has the capacity of resisting red root pathogenic bacteria of rubber trees, colletotrichum gloeosporioides and other pathogenic bacteria, and further has the effects of controlling multiple other pollution microbes and promoting growth of rubber seedlings. Therefore, the trichoderma harzianum strain can be immediately applied to the cultivation process of the rubber trees at the seedling stage, healthy growth of the rubber seedlings is promoted, and occurrence of rubber tree root diseases can be shielded or inhibited.

The invention belongs to the field of biotech, and relates to an efficient genetic transformation method for embryogenic callus of cotyledon embryo of rubber tree. The method comprises the following steps: conducting the tissue culture of the anther or the internal integument of rubber trees, using the cotyledon embryo as explant and carrying out induction and genetic transformation; then, inducing the transformed embryogenic callus into embryo and inducing the selected mature embryos into sprouts. The invention provides a simple-flow, extra-high efficiency, low-cost transformation method which overcomes the serious defects like low frequency of embryo production rate in rubber tree genetic transformation system and the long induction time of the embryogenic callus. Meanwhile, the invention also compensates the defect that the obtainment of transformed rubber tree acceptor materials is prone to natural conditions limitations and greatly shortens the transformation circle, thus making it a high-efficient genetic transformation method for rubber free. The invention is of great scientific as well as using value, and also provides a new technical route for the formation of transformation systems for rubber tree.

The invention discloses a long-lasting special fertilizer for a rubber tree and a preparation method thereof. The special fertilizer comprises the following effective components in parts by mass: 15-22 parts of nitrogen, 5-10 parts of phosphorus pentoxide, 10-15 parts of potassium oxide, 0.1-0.3 part of zinc, 0.4-0.6 part of magnesium, 0.2-0.3 part of molybdenum, 1-2 parts of dicyandiamide and 5-10 parts of humic acid. The long-lasting special fertilizer for the rubber tree disclosed by the invention is reasonable in formula and high in service efficiency; overall nutrition required for growth of the rubber tree is met; the disease resistance of the rubber tree is improved; diseases are reduced; a long-lasting effect is achieved; the application number can be reduced; time and labor are saved; meanwhile, soil can be improved; nutrient balance of the soil is ensured; the growth speed of the rubber tree is quickened by the application of fertilizer of which the dosage is best for growth of the rubber tree; the yield of dry rubber is improved; and sustainable production of rubber is achieved.

The invention provides an ARF gene of rubber trees. The ARF gene is a rubber tree growth inhibition factor HbARF2 gene, and the nucleotide sequence of the ARF gene is shown as SEQ ID NO:1. The invention also provides a protein coded by the HbARF2 gene and application of the protein. The HbARF2 gene is cloned from the rubber trees for the first time and is a transcriptive gene. It is verified by transgenic plants that the HbARF2 gene can delay the growth and development of stems, and it is indicated that the HbARF2 gene plays an important role in regulating and controlling the stems and the like of the rubber trees. Serving as a main source of natural rubber, the Brazilian rubber trees have a non-productive growth period which can last for 6-8 years; thus, by studying the molecular mechanism of HbARF2, knocking out genes and carrying out genetic improvement, the growth of the rubber trees is promoted, shortening of the non-productive growth period of the rubber trees is facilitated, theeconomic benefits of the rubber trees are increased, and meanwhile, a great basis is provided for other target breeding setting.

The invention discloses an electric rubber cutting machine. The electric rubber cutting machine comprises a handle, a machine base, a motor, a rubber cutting tool bit and a waterline tool bit. The electric rubber cutting machine is characterized in that the rubber cutting tool bit and the waterline tool bit are connected with the motor through a well-known power transmission method, the motor, the rubber cutting tool bit and the waterline tool bit are fixed to the machine base, and a switch and a power supply plug are arranged on the handle. In the rubber cutting process, a waterline can be formed for a newly-cut rubber tree through the waterline tool bit, or dry rubber dried on the bark can be taken out and then cut through the rubber cutting tool bit. Due to the work efficiency of the electric cutting machine, work conducted by 2 to 3 skilled rubber cutting workers can be conducted through the electric rubber cutting machine, and people without work experience can easily operate the machine to cut rubber.

The invention discloses a rubber tapping method and system based on a rubber tapping mechanical arm. The rubber tapping method includes: utilizing a depth camera to acquire a label on a rubber tree and a position of the label, wherein the label is number information; according to the position of the label, controlling the rubber tapping mechanical arm to move to a rubber tapping position; at the rubber tapping position, utilizing the depth camera to extract cut mark coordinates on the rubber tree; establishing cutting trails according to the cut mark coordinates and the label; performing rubber tapping according to the cutting trails. By adopting the rubber tapping method and system, labor intensity of artificial rubber tapping can be lowered, and rubber tapping productivity can be improved.

The invention discloses an automatic latex draining device and an automatic latex draining method. The automatic latex draining device comprises a latex draining unit; the latex draining unit comprises a latex draining tube and an anticoagulation output part; an front end of the latex draining tube can be inserted in rubber tree barks to extract latex; the latex anticoagulation output by the anticoagulation output part can flow to a latex outlet in the rubber tree bark corresponding to the latex draining tube when latex extraction is stopped. According to the device and method of the invention, after the collection of latex is completed, the latex at the front end (which is inserted in the bark) of the latex draining tube is kept non-solidified and the latex draining tube is kept at the position for collecting latex; when latex is collected the next time, the latex in the rubber tree bark latex vessels can be directly collected through the latex at the front end of the latex draining tube to the latex draining tube without cutting again or inserting latex draining tubes again. Therefore, by means of the device and method, without repeatedly cutting tree barks, the difficulty of latex collecting is reduced and labor cost is saved. The more important thing is that the damage to rubber trees is reduced and long term benefit is guaranteed.

The invention discloses a rubber plant translationally controlled tumor protein, an encoding gene thereof and an application of the rubber plant translationally controlled tumor protein. The translationally controlled tumor protein named HbTCTP (Hevea brasiliensis translationally controlled tumor protein) comes from Hevea brasiliensis which belongs to euphorbiaceae rubber category. The translationally controlled tumor protein is a protein (a) or a protein (b). The protein (a) is a protein which is composed of amino acid sequences showed in a second sequence of a sequence table. The protein (b) is a derivative protein, which is provided with antioxidant activity, of the second sequence by using one or more amino acid residues to substitute and/or delete and/or add the amino acid sequences. Experiments show that the rubber plant translationally controlled tumor protein can inhibit active oxygen cutting supercoiled plasmid DNA (deoxyribonucleic acid) generated by a metal catalytic oxidation system, so that the rubber plant translationally controlled tumor protein has antioxidant activity and can eliminate active oxygen in rubber plants.

The invention discloses a dangling cultivation method for rubber tree container seedlings. The dangling cultivation method includes the steps: placing a seedling raising container on a support and keeping the seedling raising container in a dangling state, wherein a culture medium is filled in the seedling raising container; transplanting rubber tree seedlings to the seedling raising container and subjecting the rubber tree seedlings to water and fertilizer management till the seedlings grow to two canopies of stable canopies, wherein the seedling raising container is provided with an opening in the bottom. Since main seedling roots are in nearly vertical state, curing and winding are avoided, none or only a few main seedling roots extend out of the bottom of the container, and tips of the main seedling roots are actively kept in the downward growth state; length of the main seedling roots reaches or exceeds relevant national standard requirements. By the dangling cultivation method, field planting survival of the seedlings is benefited, grown plants are developed in the roots which are deeply plunged into the ground, and the plants are high in capabilities of wind resistance, drought resistance and the like.

The invention discloses a rubber nutrient promoter, which is prepared by mixing and stirring ethephon, Mo compound, B compound, Na compound, adhesive, and distilled water to form a paste-shape formulation. Compared to prior rubber promoter, more than 30% yield can be improved at the same concentration of ethephon. The rubber nutrient promoter in the invention is suitable for high frequency rubber cutting manner and can regulate physiological equilibrium of the rubber tree, thereby promoting the growth of the renewed bark of the rubber tree, and reducing dead bark phenomenon of rubber tree caused by late dripping.

The invention provides a flowering regulatory protein HbTFL1-3 of a rubber tree and an encoding gene and application thereof. An amino acid sequence of the flowering regulatory protein HbTFL1-3 is as shown in SEQ ID No.9, the encoding gene of the flowering regulatory protein HbTFL1-3 is transformed for a plant, and a transgenic plant of which a flowering period is delayed can be obtained.