29 results about "Chlorophyll synthesis" patented technology

The invention discloses a polypeptide fertilizer beneficial to cold resistance of crops and a preparation method thereof, and belongs to the technical field of agricultural fertilizers, the fertilizer is prepared by taking livestock and poultry blood (preferably pig blood) as a raw material, preparing high iron protein peptide through a compound protease hydrolysis process, and matching with a trace element compound, humic acid and a carrier. The preparation process comprises the steps of enzymolysis preparation of the ferritin peptide, fertilizer mixing, granulation, drying and the like. The polypeptide fertilizer disclosed by the invention takes the high-iron protein peptide as a core, the contained small-molecular amino acid polypeptide can enhance the antioxidant enzyme activity of crops at low temperature and reduce malonaldehyde accumulation, the porphyrin iron can promote chlorophyll synthesis and energy metabolism, and the high-iron protein peptide and the porphyrin iron cooperate to remarkably improve the cold resistance of the crops. Meanwhile, by cooperating with trace elements and humic acid, the cold resistance is enhanced, nutrient absorption of crops is promoted, the yield and quality are improved, multiple effects of resisting cold, improving quality, increasing yield and the like are achieved, the raw materials are wide in source, the cost is low, the preparation process is simple, and large-scale production and application are facilitated.

The invention discloses a composite agent for preventing and treating forest diseases and insect pests and a preparation method thereof, and relates to the technical field of forest disease and insect pest prevention and treatment. The composite agent is composed of a natural active extract, a synergistic auxiliary agent and a repair conditioning agent, the natural active extract comprises a melia azedarach fruit-leaf extract, a camellia seed meal extract, a pinus massoniana needle leaf extract and a camphor tree bark extract, and the composite agent has broad-spectrum insecticidal and bacteriostatic effects; a tea residue modified penetrant and early indica rice starch sustained-release microspheres are adopted as the synergistic auxiliaries, so that the adhesiveness and infiltration capacity of the pesticide on waxy leaves are remarkably improved, and long-acting sustained release of active ingredients is realized; the restoration regulator is moso bamboo vinegar, can promote the growth of new shoots of trees and the synthesis of chlorophyll, and enhances the stress resistance of the trees. All the components are synergistically prepared through a green process, the combined effect of multiple components is fully played, insect and disease prevention, long lasting period and ecological restoration integration are achieved, and an efficient and ecologically compatible novel plant protection technical scheme is provided for forest health management and sustainable development.

This invention belongs to the field of functional food processing technology, specifically relating to a method for improving the flavor of a chlorophyll-deficient Chlorella proteoglycan mutant. The method includes the following steps: S1, obtaining a Chlorella proteoglycan mutant strain; S2, centrifuging the Chlorella proteoglycan mutant strain and collecting the algal sludge, then pulverizing the collected algal sludge and dispersing it in water to obtain an algal powder suspension, then adding a compound enzyme to the algal powder suspension, and inactivating the enzyme after the reaction; S3, cooling the system to room temperature, adding glucose and stirring to dissolve, sterilizing, inoculating with a compound bacterial strain and fermenting, and sterilizing again after fermentation; S4, cooling the fermented system to room temperature, then adding β-cyclodextrin and stirring, and drying the system after stirring to obtain the algal protein product. This invention employs a synergistic process of compound enzymatic hydrolysis, compound bacterial fermentation, and β-cyclodextrin encapsulation to remove the off-flavor of the mutant algae from the source, significantly improving the flavor and enhancing the product's storage stability.

The present application relates to the field of microorganism, and particularly to a strain of Buttiauxella agrestis 33, a vegetable fresh-keeping agent and application thereof.The present application provides a strain of Buttiauxella agrestis 33, and the preservation number of the strain is CGMCC No.34251.After the strain is used to treat green flower, the yellowing of the green flower after harvesting can be significantly inhibited.Then, the expression of genes related to chlorophyll metabolic pathway and antioxidant enzyme in the green flower treated by the Buttiauxella agrestis 33 is detected by real-time fluorescent quantitative reverse transcription PCR, and the result shows that the Buttiauxella agrestis 33 can inhibit the yellowing of the green flower after harvesting and improve the antioxidant capacity of the green flower by activating the expression of genes related to chlorophyll synthesis and antioxidant enzyme.

The invention provides an application of a potato StCRY1 gene in regulation and control of potato tuber solanine and chlorophyll accumulation, cDNA of a cultivated species Hubei potato No.3 leaf is taken as a template, StCRY1a and StCRY1b genes are cloned, a double interference vector is constructed, genetic transformation of Hubei potato No.3 is carried out for transgenic function verification, and the potato StCRY1 gene can be applied to regulation and control of potato tuber solanine and chlorophyll accumulation. It is found that interference of the StCRY1 gene can significantly inhibit synthesis of solanine and chlorophyll in potato tubers, and downstream StHY5 of the StCRY1 gene also has the same function as that of the StCRY1 gene and can regulate two channels of solanine and chlorophyll synthesis. Application of the potato StCRY1 gene to regulation and control of tuber solanine and chlorophyll accumulation can be used for molecular marker development and low solanine variety breeding.

The invention provides a fusion strain RH-0203 and application of the fusion strain RH-0203 to prevention and treatment of tomato brown wrinkled fruit virus diseases, and belongs to the technical field of microorganisms. The fusion strain is named as RH-0203 and is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No. 33388. The fusion strain is used for preparing a microbial agent, and the microbial agent is obtained by inoculating the fusion strain RH-0203 into a photosynthetic bacterium liquid culture medium and culturing at 30 DEG C under anaerobic illumination conditions. By means of microbial control, the tomato brown wrinkled fruit virus disease is effectively controlled, chlorophyll synthesis is promoted and defensive enzyme activity is enhanced while crop disease resistance is improved, and good application prospects and popularization value are achieved.

The invention relates to the technical field of genetic engineering, in particular to a method for identifying pineapple peel coloring and application. According to the method disclosed by the invention, the AcGLK gene is used as a candidate gene for determining chlorophyll synthesis of the pineapple, and specific primers are designed through molecular markers in the AcGLK gene, so that genotypes of segregation population single plants under a specific genetic background are accurately distinguished, and leaf color / peel color phenotypes are judged; the method is used in breeding practice of pineapple leaf color diversity, and the improvement process of pineapple leaf color and fruit color characters is accelerated.

A rice white leaf and panicle gene wlp3 is provided. The cDNA sequence of the white leaf and panicle gene wlp3 is shown in SEQ ID NO: 1, and the encoded amino acid sequence of the protein is shown in SEQ ID NO: 2. The rice white leaf and panicle gene wlp3 is applied to rice stress resistance and yield increase. The white leaf and panicle gene wlp3 is configured to improve cold tolerance of plants, enhance photosynthetic rate, increase plant height, leaf albinism at seedling stage, panicle albinism at heading stage, and increase panicle length at low temperature. The present disclosure obtains the rice white leaf and panicle gene wlp3 through screening and mutagenesis, which is related to the stress resistance and chlorophyll synthesis of rice. Therefore, the present disclosure provides a foundation for rice breeding.

The application discloses a single-cell green alga chlorophyll synthesis-defective mutant strain and application thereof. The mutant strain includes Parachlorella kessleri SCUT-ACB 4 and SCUT-ACB 4-65, and the preservation numbers are CCTCC NO: M 2022518 and CCTCC NO: M 2022519, which are preserved in the China Center for Type Culture Collection of Wuhan University in Wuhan, China on April 28, 2022. Compared with wild-type algae strains, the mutant strain in the application fundamentally cuts off non-light-dependent chlorophyll synthesis, and the content of chlorophyll a is reduced by more than 98%, and the content of chlorophyll b is reduced by 100%, and the algal body is golden yellow, and the mutant strain can be used for producing protein, and provides high-yield and high-quality fermentation algae for replacing protein in precise fermentation production.

The invention discloses a preparation method of a liquor-making wastewater liquid organic fertilizer for sorghum, which comprises the following steps: S1, concentrating liquor-making wastewater to obtain a concentrated solution; s2, adjusting the pH value of the concentrated solution to 6-7; s3, adjusting the concentrated solution obtained in the step S2 to enable the nutrient content of a single element to be greater than or equal to 20g / L to obtain the wine brewing wastewater liquid organic fertilizer. The wine brewing wastewater organic liquid fertilizer prepared by the method is applied to sorghum and can improve the plant height, chlorophyll synthesis and biomass accumulation in the seedling stage of the sorghum and increase the yield of the sorghum; meanwhile, resource utilization of the wine brewing wastewater is realized.

The invention provides a special green Chinese onion nutrient solution prepared based on animal enzymes and a preparation process thereof, and relates to the field of preparation of green Chinese onion nutrient solutions. The special green Chinese onion nutrient solution prepared based on the animal enzyme is prepared from the following raw material components in parts by mass: 60 parts of animal internal organs, 15 parts of eggshell powder, 10 parts of animal blood, 25 parts of green Chinese onion leaves, 3 parts of urea, 6 parts of livestock manure, 5 parts of brown sugar and 4 parts of EM bacterial powder. Urea and livestock manure are added in the preparation process of the nutrient solution, ammoniacal nitrogen generated by decomposition of urea can be combined with carbohydrate to generate amino acid, the protein content of the nutrient solution is remarkably increased, and growth of stems and leaves of green Chinese onions and synthesis of chlorophyll are promoted; the requirements of the green Chinese onions on various nutrients can be synchronously met, so that full decomposition of raw material fermentation can be accelerated, and the fermentation efficiency is improved.

The invention discloses methylobacterium extorquens 01 and application thereof, and belongs to the technical field of microorganisms. The preservation number of the methylobacterium extorquens 01 screened by the invention is CGMCC (China General Microbiological Culture Collection Center) No.35585. After the screened strain is sprayed on the broccoli, the methylobacterium extorquens 01 is found to be capable of effectively inhibiting the yellowing of the broccoli after being picked, and meanwhile, the methylobacterium extorquens 01 is found to be capable of inhibiting the yellowing of the broccoli after being picked by further detecting the chlorophyll metabolic pathway and the antioxidant enzyme related gene expression level. The methylobacterium extorquens 01 can obviously up-regulate the expression of genes chIG and hemA in a chlorophyll metabolic pathway and antioxidant enzyme related genes LOX, POD, APX and SOD. In conclusion, the methylobacterium extorquens 01 inhibits the postharvest yellowing of the broccoli and improves the oxidation resistance by activating chlorophyll synthesis and the expression of antioxidant enzyme related genes.

The invention relates to the technical field of fertilizers, in particular to a humic acid-containing medium trace element fertilizer for improving poor growth of blueberries and a preparation method of the humic acid-containing medium trace element fertilizer. According to the fertilizer, potassium fulvate and citric acid are used as main complexing frameworks, and an internal and external gradient release structure is formed by adopting a fractional iron supplementing process: the mass ratio of stable complexing iron to weak complexing iron is (8-19): 1, so that quick-acting and long-acting combination is realized. According to the formula, polydopamine nanoparticles are introduced and modified to form a core-shell structure, so that flocculation and pipeline scaling induced by calcium and magnesium ions in hard water are effectively prevented. Zinc, manganese, magnesium and boron cooperate to promote chlorophyll synthesis. Field trials show that the SPAD value of leaves is increased by 21-35%, available iron in soil is increased to 7.6 mg / kg, the irrigation uniformity coefficient reaches 94.6%, and poor growth of blueberries is remarkably improved.

The application provides application of SlPRR5 gene in regulation of chlorophyll synthesis and photosynthetic efficiency of tomato. The nucleotide sequence of the SlPRR5 gene is shown as SEQ ID NO. 1. The application constructs transgenic tomato plants of overexpression and gene knockout of the SlPRR5 gene, and finds that the SlPRR5 gene can effectively regulate the synthesis of chlorophyll of the tomato, significantly regulate the photosynthetic efficiency of the tomato plant, and change the growth state of the plant by observing the chlorophyll content and photosynthetic capacity of the tomato. The application provides a new gene regulation strategy for optimization of photosynthetic capacity and yield improvement of the tomato.

This invention discloses SlCOP1 The application of genes in regulating tomato chlorophyll synthesis and photosynthetic efficiency, through knockout SlCOP1 The gene enables increased chlorophyll content and enhanced photosynthetic efficiency in tomatoes. SlCOP1 Genes affect chlorophyll accumulation by regulating the gibberellin signaling pathway; the tomato SlCOP1 The gene has the nucleotide sequence of SEQ ID No: 1. This invention is the first to elucidate... SlCOP1 A novel gene regulation function for tomato chlorophyll synthesis reveals the core role of the SlCOP1-SlDELLA-GA pathway in chlorophyll synthesis regulation, providing new theoretical basis for elucidating the molecular regulatory network of plant chlorophyll synthesis. SlCOP1 Genes can serve as key target genes for precision breeding, enabling targeted improvement of tomato chlorophyll accumulation and photosynthetic efficiency traits. This provides an efficient and feasible technical path for cultivating new tomato varieties with high light efficiency and high yield, and has significant theoretical implications and broad prospects for agricultural applications.

The invention discloses application of baicalin in relieving copper toxicity of duckweed, and belongs to the technical field of plant adversity physiology and heavy metal pollution remediation. Systematic research on the physiological regulation mechanism of baicalin on duckweed under copper stress innovatively discovers that the relative growth rate of duckweed can be remarkably increased through treatment of baicalin; according to the application, the chlorophyll synthesis level is effectively recovered, the photosynthesis inhibition effect caused by copper toxicity is fundamentally improved, it is proved that the threshold concentration for effectively relieving the copper toxicity is 400 [mu] M, the optimal action concentration window is 200-800 [mu] M, and the concentration interval can achieve synergistic antagonism on the toxicity of copper ions by adjusting the antioxidant metabolic pathway of duckweed. And a green and efficient new strategy is provided for heavy metal polluted water body remediation. The method is not only suitable for ecological restoration engineering of copper-polluted water areas, but also can be expanded and applied to cultivation of stress-resistant varieties of aquatic economic plants, and has important theoretical value and practical application prospect in improvement of heavy metal tolerance of stressed plants.

The invention discloses a melatonin preparation for improving the salt stress resistance of carya illinoensis and a preparation method of the melatonin preparation, and relates to the technical field of biology. The melatonin preparation comprises a first active component, a second active component and auxiliary materials, the first active component is melatonin; and the second active component is tuberostemonine or dioscin. According to the invention, tuberostemonine and dioscin are introduced to respectively form a synergistic effect with melatonin, so that the salt stress resistance of the carya illinoensis can be remarkably improved. The tuberostemonine or the dioscin is combined with the melatonin, so that the activity of antioxidant enzymes such as superoxide dismutase and peroxidase can be activated, active oxygen can be effectively removed, and the content of malondialdehyde can be reduced, so that the membrane lipid peroxidation damage can be alleviated, and the cell membrane stability can be maintained; meanwhile, chlorophyll synthesis can be promoted, inhibition of salt stress on photosynthesis is relieved, seedling biomass accumulation is enhanced, the fresh weight is remarkably improved compared with that of salt stress control, and the comprehensive resistance to salt stress is shown.

The invention belongs to the technical field of organic fertilizers, and particularly relates to a compound fertilizer for promoting flower growth and a preparation method thereof. The compound fertilizer for promoting flower growth comprises the following components: an organic matter, a nitrogen fertilizer, a phosphate fertilizer, a synergist and an anti-caking agent, the overall caking rate is low, after the compound fertilizer is compounded with an organic fertilizer, fertilization is performed in the flower growth period, sufficient nitrogen supply promotes functional leaf extension and chlorophyll synthesis, the photosynthetic efficiency is improved, and a continuous assimilation substance source is provided for underground rhizomes and overground branches. The plant is more robust, and the commodity character is obviously improved.

The invention relates to the technical field of genetic engineering, in particular to a molecular marker for identifying pineapple peel coloring and application. The AcGLK gene is determined as a candidate gene for determining pineapple chlorophyll synthesis, a specific primer group is designed through molecular markers in the AcGLK gene, and the primer group can accurately distinguish genotypes of segregation population single plants under a specific genetic background, so that leaf color / peel color phenotypes are judged; the method is used in breeding practice of pineapple leaf color diversity, and the improvement process of pineapple leaf color and fruit color characters is accelerated.

The present application belongs to the field of tissue culture and genetic engineering technology, and specifically provides a catalpa ovata chlorophyll synthesis upstream rate-limiting gene and application thereof. The catalpa ovata chlorophyll synthesis upstream rate-limiting gene is shown as SEQ ID NO. 4. By constructing a pEG237-Cbudxs2 gene editing vector, a Cbudxs2 gene knockout catalpa ovata plant is obtained: the chlorophyll content of the plant is reduced by about 20% compared with the wild type, the leaf color is yellow, the plant is healthy and can be normally propagated, and the plant can be used as a visual screening marker for catalpa ovata gene editing and experimental material for photosynthetic mechanism research; a Cbudxs2 overexpression catalpa ovata plant is obtained by constructing a pROKII-Cbudxs2 overexpression vector: the chlorophyll content and photosynthetic capacity of the plant are significantly higher than those of the wild type, and the plant has excellent traits of high photosynthetic capacity.

The application discloses a fine regulation method for rice heading stage. The method is based on a double gene mutant ygl219 for controlling yellow-green leaves and early heading. The yellow-green leaf phenotype is caused by mutation of a key enzyme of chlorophyll synthesis, ethylene reductase gene OsDVR (LOC_Os03g22780) (SEQ ID NO: 3 and SEQ ID NO: 4), and the early heading (10-15 days earlier than wild type Quantfeng B) phenotype is controlled by another unknown gene. The application combines the ygl219 mutant background with overexpression of the OsDVR coding sequence driven by the Ubi promoter, restores the yellow-green leaf and plant height phenotypes of the mutant, and specifically retains the early heading characteristics, and finally obtains improved rice materials with advanced heading stage and increased yield. The method provides a new technical approach for fine regulation of rice growth period and creation of early-maturing and high-yield parents, and has important application value for wide adaptability and simple cultivation of rice.

The invention relates to the technical field of biology, and particularly discloses application of a ZmCRY1 gene in improvement of photosynthetic performance of corn. According to the invention, a corn transgenic positive plant over-expressing the ZmCRY1 gene is obtained through the steps of cloning of the corn ZmCRY1 gene, construction of a pBCXUN-ZmCRY1 fusion expression vector, agrobacterium transformation and the like, and the chlorophyll content of the corn transgenic positive plant reaches 0.83 mg / g and is increased by 53.7% compared with that of a wild type; the photosynthetic rate reaches 39.5 and is improved by 16.2% compared with that of a wild type, which shows that the ZmCRY1 gene can significantly improve the chlorophyll synthesis and photosynthetic rate of the corn, directly enhance the luminous energy conversion efficiency and improve the photosynthetic performance of the corn, and can be used as a new target for corn variety improvement.

The invention provides a method for improving selenium tolerance of euglena gracilis and a preparation method of selenium-rich microalgae, and belongs to the technical field of microalgae application. The invention provides a method for improving selenium tolerance of euglena gracilis. The method comprises the following steps: culturing euglena gracilis in a culture medium added with sodium selenite; the adding mode of the sodium selenite comprises the step of adding the sodium selenite once a day from the beginning of inoculating the euglena gracilis; or sodium selenite is added once after the euglena gracilis is cultured for 48 hours or two days; or, starting from inoculation of the euglena gracilis, after the euglena gracilis is cultured for 48 hours or 2 days, sodium selenite is added once a day; the addition amount of the sodium selenite in each time is 1-10 mg / L. The method can prolong the growth cycle of the euglena gracilis, improve the movement ability of the euglena gracilis, promote the accumulation of parastarch, improve the maximum photosynthetic rate of the euglena gracilis, promote the chlorophyll synthesis of the euglena gracilis and improve the catalase activity of the euglena gracilis, and is beneficial to improving the selenium tolerance of the euglena gracilis.

The invention relates to the technical field of aquatic plant cultivation, in particular to an aquatic plant cultivation device for water area restoration, which comprises two cultivation basins, a fixing plate for supporting the two cultivation basins is arranged at the bottoms of the two cultivation basins, and a switching mechanism for driving the two cultivation basins to lift is arranged outside the two cultivation basins. The switching mechanism comprises an overturning rod mounted outside the two culture pots; through cooperation of the switching mechanism, the driving mechanism, the electric hydraulic rod, the transmission rod, the positioning block and other structures, the overturning rod is driven to drive the two culture pots to be flexibly switched to the horizontal or vertical state, the two culture pots are arranged in a stacked mode, the horizontal space occupancy rate can be reduced, multi-layer cultivation can be continued, and when the two culture pots are switched to the horizontal state, multi-layer cultivation can be continued. Interlayer shielding does not exist in the culture pot, sunlight or an artificial light source can directly and evenly cover the aquatic plants in the pot, it is guaranteed that chlorophyll synthesis is smooth, stems and leaves grow vigorously, roots grow vigorously, and the growth vitality and health quality of the aquatic plants are comprehensively improved.

This invention relates to the field of ecological cultivation technology of Chinese medicinal materials, specifically to a comprehensive prevention and control method for iron deficiency in *Polygonatum sibiricum* under forest cover. This invention addresses the symptoms of iron deficiency in *Polygonatum sibiricum* under forest cover by adjusting soil pH, providing effective iron supply, and combining a compound microbial agent of *Bacillus subtilis*, *Bacillus pumilus*, *Bacillus tekirae*, *Bacillus mycoides*, and *Bacillus amyloliquefaciens* with *Pseudomonas fluorescens* to release iron carriers. This fundamentally solves the problems of chlorosis and yellowish-white discoloration in young leaves, oily yellowish-brown spots on leaves, wilting of young shoots, elongated internodes, and easy lodging. Using *Polygonatum sibiricum* as the material, this invention proposes a three-step comprehensive approach to eliminate deficiency symptoms caused by iron deficiency during its ecological cultivation in forests. This allows the chloroplast thylakoid membrane and chlorophyll synthesis in *Polygonatum sibiricum* plants under forest cover to recover, photosynthesis to return to normal, and chlorophyll fluorescence kinetic parameters to a healthy state.

The application discloses a gallate-based blue light-emitting material applicable to a plant light supplement lamp, a preparation method and application of the gallate-based blue light-emitting material, and a chemical general formula of the light-emitting material is Ca 1‑x Ga4O7:xCd 2+ , wherein x is 0.003-0.007. The gallate-based blue light-emitting material takes CaGa4O7 as a matrix, Cd 2+ is a doping ion, Cd 2+ cannot form a new light-emitting center in CaGa4O7, and only plays a role in enhancing blue light emission of the matrix. The light-emitting material produces a wide peak with a peak value of 445 nm under ultraviolet excitation, generates blue-white emission, and the emission band is highly coincident with a band required by plant growth, so that chlorophyll synthesis can be promoted, stem and leaf growth of plants is beneficial, the plant light supplement demand can be met, and the optimal afterglow duration can reach nearly 2 hours. The light supplement can still be carried out after stopping excitation, and energy consumption is reduced.

The application discloses OsRNE A gene and application of the gene and a coded protein in rice leaf color regulation and chloroplast development. OsRNE The nucleotide sequence of the gene is shown as SEQ ID NO. 1, and the amino acid sequence of the coded protein is shown as SEQ ID NO. 2. OsRNE The application utilizes CRISPR / Cas9 gene editing technology to knockout the gene and obtain a loss-of-function mutant. The mutation of the gene leads to impaired chloroplast development of rice, affects chlorophyll synthesis, albino of seedlings and death within three-leaf stage, and thus can be used as a marker trait to assist rice molecular breeding at the seedling stage. OsRNE The gene is mainly expressed in leaves, the coded protein is located in chloroplasts, and the chloroplast development and normal growth of seedlings are affected by affecting the metabolism of ribosomal RNA in chloroplasts. Therefore, the application can be applied to molecular genetic breeding of rice leaf color traits, and has important significance for further understanding of a chloroplast development regulation mechanism of rice and yield increase of rice.

The invention discloses a method for relieving plant tin (Sn < 4 + >) stress through calcium folate and application, and belongs to the technical field of plant stress resistance and heavy metal pollution remediation. Aiming at the problems of high cost, single target spot, insufficient metabolic regulation and the like caused by dependence on a chelating agent or an antioxidant in the prior art, multiple-effect synergistic alleviation is realized by exogenously applying calcium folate with a specific concentration: plant leaf shedding and root length shortening induced by Sn < 4 + > are inhibited, active oxygen (H2O2 and O2-) is effectively removed, membrane lipid peroxidation damage is reduced, and the yield of the plant is increased. The antioxidant enzyme activity and chlorophyll synthesis capability are recovered, and the photosynthetic function is improved. In a molecular mechanism, a folic acid synthesis pathway is activated and related gene expression is regulated and controlled. The method can synchronously improve plant stress resistance and heavy metal restoration efficiency, can reduce Sn < 4 + > bio-availability when applied to aquatic plants, can block heavy metal food chain transmission when applied to terrestrial crops, and provides an innovative technical scheme for ecological management and agricultural safety production.

The invention discloses hansenula uvarum for inhibiting various pear fungal germs and promoting plant chlorophyll synthesis and application of the hansenula uvarum, and belongs to the technical field of plant biology. The strain is named as Huv1, and the preservation number is CGMCC (China General Microbiological Culture Collection Center) NO.33378 The hansenula polymorpha disclosed by the invention has the beneficial effects that the hansenula polymorpha disclosed by the invention has relatively strong bacteriostatic activity and can effectively inhibit main pathogenic bacteria such as colletotrichum fruit, alternaria alternata, botryosphaeria berengensis and clostridium microneoshell, which are generated in the early stage of leaf falling of pears. And the application range of hansenula polymorpha var. Uvarum in prevention and treatment of diseases and promotion of plant chlorophyll synthesis in postharvest storage of fruits is widened.