39 results about "Photorespiration" patented technology

The invention relates to a method for the production of plants with suppressed photo-respiration and improved CO2 fixation. In particular, the invention relates to a re-use of phosphoglycolate produced in photorespiration. The reaction product will be converted to a component that may be reintegrated into the plant assimilatory metabolism inside the chloroplast. This is accomplished by the transfer of genes derived from glycolate-utilizing pathways from bacteria, algae, plants and / or animals including humans into the plant nuclear and / or plastidial genome. The method of the invention leads to a reduction of photorespiration in C3 plants and by this will be of great benefit for food production especially but not exclusively under non-favourable growth conditions.

The invention relates to a preparation method and application of a nano carbon dioxide capturing agent, and the preparation method of the nano carbon dioxide capturing agent comprises the following steps: taking cationic surface active agent modified bentonite as a carrier; the CO2 nano capturing agent prepared from the loaded cationic surface active agent modified chitosan, graphene oxide and loaded organic alkali modified hydrotalcite has the photocatalytic effect of a nano material, captures and combines carbon dioxide in air to be enriched around leaves and stems for crop absorption and utilization, enhances photosynthesis, improves the photosynthetic rate, and inhibits light respiration at night; the chlorophyll is synthesized for crop growth, three elements of carbon, hydrogen and oxygen necessary for crop growth are accumulated, organic components such as nitrogen, phosphorus and potassium in soil are effectively absorbed, synthesized and converted, inoculation, growth and maturity of crops are fully promoted, and yield and income are increased. The CO2 trapping agent can be used for facility crops and field crops, and the CO2 trapping agent at normal temperature and normal pressure has wide application.

Plant transcription factors and genes encoding the transcription factors are disclosed. Methods to enhance characteristics in a plant by downregulating the genes encoding the transcription factors also are disclosed. The enhanced characteristics can include higher photosynthesis rates, reduced photorespiration rates, higher biomass yield or content, higher seed yield, improved harvest index, higher oil content, improved nutritional composition, improved nitrogen use efficiency, drought resistance, flood resistance, disease resistance, faster seed germination and plant emergence, improved seedling vigor, salt tolerance, higher CO2 assimilation rate, and lower transpiration rate. Modified plants in which the genes encoding the transcription factors are downregulated also are disclosed. Compositions of the invention comprise polynucleotide sequences, polypeptide sequences, variants, orthologs, and fragments thereof. Methods comprise introducing into plants systems that reduce or eliminate the expression of transcription factors. Methods and compositions also provide plants with enhanced seed yield and / or seed oil content.

Plants are provided with increased ribulose-1,5-bisphosphate (RuBP) regeneration capacity during the Calvin cycle through increased expression of sedoheptulose 1,7 bisphosphatase, in combination with reduced photo-respiratory losses through expression of glycolate catabolizing enzymes. Such plants have a greater growth rate and / or improved biomass and / or increased carbon fixation compared to untreated plants, or plants comprising only one of the features above.

The present invention provides novel and effective compositions and methods for promoting the growth of green photosynthetic plants, particularly higher plants. The method relies on applying compounds comprising carbon dioxide infused water as a foliar spray to the plant and its leaves, where the compound increases intracellular carbon dioxide levels in an amount sufficient to inhibit photorespiration within the plant cells and thus enhance plant growth.

The invention provides a special fertilizer for maize and a preparation method of the special fertilizer. The special fertilizer for the maize is prepared from components as follows: 35%-45% of urea, 5%-15% of diammonium phosphate, 15%-25% of superphosphate, 10-20% of potassium chloride, 3%-7% of zinc sulfate and 3%-7% organic acid. The special fertilizer for the maize can improve the situation of uneven maize fertilization, has a proper ratio of nitrogen fertilizer to phosphorus fertilizer to potassium fertilizer to zinc fertilizer, helps growth of the maize, can affect synthesis of auxin in plant bodies, catalyzes the photochemical reaction of chlorophyll, and promotes photorespiration of the maize. Meanwhile, the properties of adversity resistance, lodging prevention, low-temperature damage prevention and the like of the maize can also be improved. The special fertilizer for the maize can not only increase maize yield, but also improve the maize quality and economic benefits.

A sulfuric acid of sulfurous acid light rare earth plant growth regulator capable of improving yield and quality of root crop and tuber crop is composed of polynary rare earth complex, wherein the chemical structural formula of the polynary rare earth complex is RE(HSO3)3SN, N being equal to 0 to 8, or RE3(SO3)2SN, N being equal to 0 to 6, wherein, rare earth RE is a trivalent ion of the element optionally selected from La, Ce, Pr, and Nd; HAO3- or SO32- is inorganic ligand; and SN is solvent selected from H2O, CH3OH, C2H5OH, or DMSO. The plant growth regulator is a RE-H-L-S polynary complex, which can be prepared in a short reaction period by simple method. By using the regulator, the growth of the root crop and tuber crop can be promoted, the absorption to organic and inorganic nutrient and the content of chlorophyll can be improved, photorespiration can be inhibited, and the photosynthesis can be improved, thereby improving the yield by 15% to 45% and quality by 1 to 2 levels.

The present invention relates to the field of plant molecular biology and concerns methods for enhancing the abiotic stress tolerance in plants by modulating the expression of the glyoxylate reductase gene. The present invention also provides chimeric constructs useful in the methods in the invention. In addition, the invention provides transgenic plants having an enhanced abiotic stress resistance, in particular an enhanced tolerance to high light conditions and an improved CO2 fixation.

The present invention provides methods of producing biological products or increasing production of such products through expression in a plant of a bacterial or plant glycolate catabolic cycle gene, such as glycolate dehydrogenease (GDH), glycolate oxidase (GO), or malate synthase (MS) in combination with a plant gene, such as farnesyl diphosphate synthase (FPS), squalene synthase (SQS), or PLAS. Also provided are plants, plants parts and compositions produced through methods of the present invention. The invention leads to two to five fold increase of end product yield.

The invention belongs to the field of plant biotechnology, and in particular relates to a compound photorespiration inhibitor and its preparation method and application. The compound photorespiration inhibitor includes sodium bicarbonate with a concentration of 50mg / L to 500mg / L, sodium bisulfite with a concentration of 50mg / L to 500mg / L, and bile chloride with a concentration of 50mg / L to 500mg / L. Alkali, Tween-80 with a concentration of 0.5% to 1.5%. The present invention organically combines three kinds of photorespiration inhibitors, and adds a spreading agent, which is beneficial to the absorption of medicaments, exerts their respective effects of inhibiting photorespiration and the synergistic inhibition between them, and reduces the degree of photorespiration , significantly improving crop yield and quality.

The invention relates to a preparation method and application of a nano-carbon dioxide capture agent. The preparation method of the nano-carbon dioxide capture agent of the present invention uses cationic surfactant-modified bentonite as a carrier, and supports cationic surfactant-modified chitosan and graphene oxide. And loading organic base modified hydrotalcite to prepare CO 2 The nano-capture agent has the photocatalytic effect of nano-materials, captures and aggregates carbon dioxide in the air and enriches around the leaves and stems for absorption and utilization by crops, enhances photosynthesis, increases photosynthetic rate, inhibits photorespiration at night, synthesizes chlorophyll for crop growth, and accumulates crops The three elements of carbon, hydrogen, and oxygen necessary for growth can effectively absorb, synthesize, and transform organic components such as nitrogen, phosphorus, and potassium in the soil, and fully promote the breeding, growth, and maturity of crops to increase production and income; the CO of the present invention 2 The capture agent can be used for facility crops as well as field crops. This kind of CO under normal temperature and pressure 2 Catchers have a wide range of applications.