59 results about "Halotolerance" patented technology

The invention relates to the technical field of microbial treatment of antibiotic pollution, and discloses an antibiotic degrading bacterium with salt tolerance and capable of degrading sulfamethoxazole at low temperature and application, the strain degrades SMX in a wide temperature range of 10-40 DEG C, the degradation rate of 20mg / L SMX at 10-35 DEG C within 64 hours is greater than 70%, and the degradation rate of 20mg / L SMX at 20-30 DEG C reaches 100%; at the low temperature of 10 DEG C, low-concentration SMX is obviously degraded, and the SMX with the concentration of 5 mg / L can be completely degraded within 16 hours; the MJ2 can still effectively degrade SMX under the harsh conditions that the temperature is low and SMX serves as the unique carbon and nitrogen source, the degradation rate reaches 100% after 66h at the concentration of 5 mg / L, and it is proved that the MJ2 has the unique oligotrophic adaptability. Salinity tests show that the degradation rate of MJ2 to 20 mg / L SMX within 48 hours under the 0.1-2% NaCl concentration is 100%, the degradation rate is still kept at 50% even under the stress of 3% high salt, and remarkable salt tolerance is also shown. In conclusion, the strain MJ2 integrates wide temperature range adaptability, low-temperature high efficiency, oligotrophic tolerance and high salt stability, and has great application value in sulfonamide antibiotic pollution remediation in a complex environment.

The invention belongs to the technical field of molecular biology, and discloses an SNP (Single Nucleotide Polymorphism) marker related to the salt tolerance character of micropterus salmoides and application of the SNP marker. According to the invention, correlation analysis is carried out on the extreme salinity tolerance of the micropterus salmoides and the salt tolerance of sensitive individuals, so that the SNP molecular marker related to the salt tolerance of the micropterus salmoides is obtained. The SNP molecular marker is shown as SEQ ID NO: 1, the SNP site is located at the 501st site, and three genotypes of TT, TG and GG exist. Wherein the survival time of the micropterus salmoides with the GG genotype under salinity stress is obviously higher than that of the micropterus salmoides with TG and TT genotypes. By detecting the genotype of the SNP molecular marker, the parent of the micropterus salmoides with strong salt tolerance can be accurately selected, and the SNP molecular marker can be effectively used for molecular marker-assisted breeding of the micropterus salmoides.

The invention relates to salt-tolerant paracoccus and application thereof in wastewater treatment, and belongs to the technical field of environmental microorganisms. The Paracoccus sp. S16 is preserved in the China General Microbiological Culture Collection Center on May 28, 2025, the preservation address is No.3, No.1 yard, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No.34704. The strain has unique salt tolerance and various degrading enzyme systems, and can be applied to the field of biological engineering, biological engineering and the like. The catalyst can effectively degrade petroleum hydrocarbons, polymers and other organic pollutants with high toxicity in drilling fluid wastewater, has wide environmental adaptability, and has great application potential.

The invention relates to the technical field of seawall ecological transformation, and discloses a slope type seawall inner slope ecological transformation method which comprises the following steps: selecting a seawall section suitable for ecological transformation according to three first-level indexes, namely a seawall shoreline foundation, hydrology and water quality conditions and surrounding environment conditions; constructing a pool in the selected seawall section according to the terrain; constructing a pool base; and constructing a plant community in the water pool according to the life type, the phenological period and the salt tolerance of the plant. According to the method, a proper transformation section can be selected in combination with various environmental factors of a transformation area, then a corresponding water pool is constructed in combination with the landform, then a proper ecological material is selected to construct a substrate, and different plant communities are constructed in the water pool according to the characteristics of different plants. A natural-imitated seawall ecological space is built, the flood prevention and tide blocking functions of the seawall are guaranteed, the hygrophytes, aquatic plant communities and planktons can be utilized, an inhabiting and foraging environment is built for aquatic animals and hydrophilic birds, and the ecological service function of the seawall is improved.

The invention belongs to the technical field of agricultural fertilizers, and particularly relates to an amino acid water-soluble fertilizer containing chitosan oligosaccharide and salt-tolerant bacillus and a preparation method of the amino acid water-soluble fertilizer. According to the method, litopenaeus vannamei heads are used as raw materials, a refined solution is prepared through mixed acid pretreatment, double-enzyme fermentation and nanofiltration membrane desalination, and the refined solution is mixed with a salt-tolerant domesticated bacillus licheniformis / bacillus natto solution, citric acid-malic acid chelated medium elements and a protective agent. According to the method, by optimizing a pretreatment process and a chelating system, synergistic degradation of shrimp head protein and chitin is achieved, the prepared fertilizer has the compound functions of amino acid, chitosan oligosaccharide and a salt-tolerant microbial agent, the problems that a microbial agent in a traditional fertilizer is poor in salt tolerance and prone to precipitation are solved, and the method is suitable for facility agriculture and saline-alkali soil and has a wide application prospect. The crop stress resistance can be enhanced; the growth effect is improved.

The application discloses a humification preparation containing bacillus licheniformis and a preparation method and application thereof, and belongs to the technical field of microorganisms. The humification preparation comprises the bacillus licheniformis and thermus arciformis. The bacillus licheniformis is preserved in the China General Microbiological Culture Collection Center on June 27, 2025, and the address of the preservation center is No. 3, Xili Beichen, Chaoyang District, Beijing, and the preservation number is CGMCC No. 35039. The bacillus licheniformis is separated from a coastal saline-alkali soil, has high-temperature resistance and salt tolerance, and can secrete protease and lipase. After the bacillus licheniformis and the thermus arciformis are mixed, the synergistic effect is obvious, duck-derived red mud can be effectively converted into humic acid, and resourceful high-value utilization of the duck-derived red mud is realized.

The invention belongs to the technical field of saline-alkali soil improvement, and particularly relates to a coastal saline-alkali soil-oriented intelligent pH-responsive controlled-release crop growth-promoting soil conditioner as well as a preparation method and application thereof. The modifier is biochar-based composite microspheres, an inner core is formed by compounding biochar, silicon quantum dots and a nitrogen-phosphorus-potassium compound fertilizer, an outer layer is coated with a pH response coating formed by chitosan, and an integrated system of environmental perception, release regulation and accurate fertilizer supply is constructed. After the fertilizer is applied to soil, a coating layer swells under the rhizosphere micro-domain acidic condition, nutrient diffusion is intelligently regulated and controlled, and leaching loss and volatilization are reduced. The biochar porous structure adsorbs and fixes salt ions, improves aggregate and ventilation and water permeability, and enhances water retention and fertilizer conservation; the silicon quantum dots improve the photosynthetic efficiency and enhance the oxidation resistance; the compound fertilizer is continuously supplied to nitrogen, phosphorus and potassium. The components synergistically improve soil microstructure and water and salt migration, relieve salt ion poison, improve nutrient utilization and crop salt tolerance, promote yield increase and stability and are suitable for saline-alkali soil remediation.

The invention belongs to the technical field of microorganisms, and particularly relates to a salt-tolerant endophytic fungus DZ-Sp-9 and application thereof. The classification name of the salt-tolerant endophytic fungus DZ-Sp-9 is Sedecimilla taiwanensis DZ-Sp-9, the salt-tolerant endophytic fungus DZ-Sp-9 is preserved in the China Center for Type Culture Collection on August 22, 2025, and the preservation number of the salt-tolerant endophytic fungus DZ-Sp-9 is CCTCC (China Center for Type Culture Collection) NO: M 20251874. Experiments prove that the salt-tolerant endophytic fungus DZ-Sp-9 can promote the growth of corn seedlings and improve the salt tolerance of the corn seedlings, and can be developed into a microbial fertilizer in the future to be used for planting crops in saline-alkali soil.

The invention relates to the field of microorganisms, in particular to bacillus subtilis, a microbial agent and application of the microbial agent. The invention provides bacillus subtilis, and the preservation number of the bacillus subtilis is CGMCC (China General Microbiological Culture Collection Center) No.36176. The invention further provides a preparation method of the bacillus subtilis. The bacillus subtilis strain which is high in salt tolerance, stable in function and wide in application range is obtained through screening, and the bacillus subtilis strain has important theoretical significance and practical application value for improving the saline-alkali soil biological improvement effect, expanding the application scene of microbial fertilizer in saline-alkali soil and promoting ecological restoration.

The application discloses a kind of salt-tolerant heterotrophic nitrification microbial inoculant and application thereof, the salt-tolerant heterotrophic nitrification microbial inoculant is compounded by seed liquid of halomonas campaniensis strain LJK10, Marinobacterium LJK14 and halomonas alkaliphila LJK7, the volume ratio of the seed liquid of halomonas campaniensis strain LJK10, Marinobacterium LJK14 and halomonas alkaliphila LJK7 is 2.5-3:2.0-2.5:1.5-2.0.The heterotrophic nitrification microbial inoculant of the application tolerates salinity up to 20%, and when salinity is up to 12%, there is still 100% denitrification efficiency.It is shown that the heterotrophic nitrification microbial inoculant of the application has great application prospect in the aspect of biological denitrification of high salinity mariculture tail water.

Provided are a marine concrete composition using dechlorination microorganisms capable of easily removing chlorine generated by seawater through an electrical method by allowing electrons emitted from electricity-generating microorganisms to flow through steel fibers incorporated into ultra-high-performance concrete (UHPC) or high-performance fiber reinforced concrete (HPFRCC) through a dechlorination microbial capsule carrier and capable of self-healing concrete crack sites through a self-healing microbial capsule carrier and is also capable of fundamentally solving the problem of reduced durability against salt damage of ultra-high-performance concrete or high-performance fiber reinforced concrete for application in marine construction environments through a dechlorination microbial capsule carrier, and a method for constructing a marine concrete structure using the same.

The invention belongs to the technical field of saline-alkali soil improvement and agricultural biology, and particularly relates to a coastal saline-alkali soil green manure combined desalting and fertilizing method based on multistage screening. According to the method, sand culture and water culture are combined, different NaCl concentration gradients are set, the salt tolerance of green manure crops is evaluated, and green manure varieties suitable for different salinization degrees are screened out; planting the screened green manure varieties in different areas according to the salinization degree of the saline-alkali soil; after the green manure grows to a proper period, turning and returning to the field to realize soil desalination and fertilization. According to the method, multi-dimensional agronomic characters such as the emergence rate, the root length, the plant height and the fresh weight are comprehensively evaluated through a multi-stage screening method combining sand culture primary screening and water culture secondary screening, green manure varieties suitable for mild, moderate and severe salinized soil are scientifically screened out, the defects that in the prior art, green manure selection is blind, and a targeted evaluation system is lacked are overcome, and the method is suitable for large-scale popularization and application. And accurate variety support is provided for biological improvement of the coastal saline-alkali land.

The application discloses a salt-tolerant oil-degrading bacterium, a biological preparation and application of the salt-tolerant oil-degrading bacterium in oil degradation, and belongs to the technical field of biological degradation. The strain of the salt-tolerant oil-degrading bacterium is named IURM G72, is preserved in the China General Microbiological Culture Collection Center, and has a preservation number of CGMCC NO.29726. The salt-tolerant oil-degrading bacterium IURM G72 and the preparation thereof have good salt tolerance and oil-degrading performance, can grow with oil as the only carbon source in the case that the salt concentration is high, and have simple nutritional requirements. The degrading bacterium and the preparation thereof can effectively degrade oil in high-salt kitchen waste, and have important significance for water bodies and soil polluted by waste edible oil.

The invention provides paenibacillus kuchii as well as a fungicide and application thereof, and relates to the field of microorganisms. The paenibacillus kuchii is specifically paenibacillus kuchii M18, and the preservation number of the paenibacillus kuchii M18 is CGMCC (China General Microbiological Culture Collection Center) No. 36293. The strain can be used for dissolving phosphorus and potassium, fixing nitrogen and secreting IAA (Indoleacetic Acid), and is beneficial to promoting plant growth and improving soil quality; the strain can produce a biological membrane, can effectively isolate the contact between a root system and pathogenic bacteria, and plays a crucial role in preventing and treating various soil-borne diseases; the strain can produce protease and cellulase and promote the growth of plants; the strain can produce a urease inhibitor, inhibit the activity of urease in soil and delay hydrolysis of urea. The strain also shows extremely strong salt tolerance, and is beneficial to exerting a growth promoting effect in saline-alkali soil. The microbial inoculum can be applied to the root of a plant by means of root irrigation, so that the strain is colonized at the root of the plant to play a role in promoting the growth of the plant.

The invention discloses an SNP (Single Nucleotide Polymorphism) molecular marker related to the salt tolerance character of siniperca chuatsi, the SNP molecular marker is located at the 182nd site of a sequence as shown in SEQ ID NO: 1, the mutation type of the SNP molecular marker is G / T, and the G allele is a preferred gene. The invention further discloses a primer and a kit for detecting the SNP molecular marker and a method for breeding the siniperca chuatsi with the salt-tolerant character. The invention further discloses application of the primer, the kit and the method in breeding the salt-tolerant siniperca chuatsi.

The present application belongs to the field of microbial technology. More particularly, it relates to a salt-tolerant Bradyrhizobium sp. strain RY15 and its application. The Bradyrhizobium sp. strain RY15 provided by the present application has excellent salt tolerance and can significantly promote the growth and development and nodule fixation ability of Desmodium velutinum. The pot experiment results prove that the application of the RY15 strain can significantly increase the fresh weight of the aboveground part, the fresh weight of the underground part and the number of nodules of Desmodium velutinum; in the saline soil field, the yield of the pasture is increased by 68.89% after the inoculation of the RY15 inoculant. The RY15 strain of the present application can be made into a liquid or solid microbial inoculant, which is suitable for seed dressing, root soaking or soil application, and is simple to operate, low in cost and easy to popularize. The RY15 strain of the present application is a natural symbiotic bacterium, is safe and non-toxic, can improve the nitrogen cycle of soil, expand the planting of high-quality leguminous forage in saline-alkali soil, and has good application prospect and application value.

The invention discloses a targeted biological bacterium coupling method for comprehensive treatment of coastal vegetable salt damage, heavy metal and pesticide residues and application, and relates to the field of agricultural biotechnology and soil remediation. According to the method, bacillus subtilis, bacillus mucilaginosus, brevibacillus laterosporus, pseudomonas fluorescens, arbuscular mycorrhizal fungi and host original flora extracted from healthy vegetable rhizosphere soil are subjected to coupled symbiotic culture, and target flora with multiple functions is formed. The functional flora is compounded with a nutrient carrier containing potassium humate and fulvic acid, a seaweed extract and a specific salt-resistant additive to prepare the multifunctional water-soluble fertilizer or fungicide. After the compound fertilizer is applied to a coastal vegetable production base, the synergistic effects of degrading soil pesticide residues, passivating heavy metals, enhancing the salt tolerance of vegetables and improving the soil fertility and microbial diversity can be synchronously realized, the compound obstacle problem of coastal vegetable production is fundamentally solved, and the yield, quality and safety of vegetables are guaranteed.

The application discloses Bacillus tequilensis QingTuHuS40 and application thereof, wherein the Bacillus tequilensis QingTuHuS40 is preserved in the China General Microbiological Culture Collection Center (CGMCC) on January 8, 2025, and the preservation number is CGMCC No. 33325. The Bacillus tequilensis QingTuHuS40 can be planted in rhizosphere of red sand, recruit some other beneficial bacteria, and reshape the bacterial community structure in the rhizosphere of the red sand. Meanwhile, the soil fertility is improved, the degree of soil salinization is improved, the ability of plants to fully utilize environmental nutrients is enhanced, the growth of plants is promoted, and the salt tolerance is enhanced.

The application discloses a salt-tolerant adenylate kinase mutant and application thereof. Through modification on an amino acid sequence of a wild-type adenylate kinase (adenylate kinase, EC 2.7.4.3) from Bacillus subtilis (strain 168), three salt-tolerant adenylate kinase mutants are obtained; the mutant adenylate kinase has higher salt tolerance compared with the wild-type adenylate kinase, and can tolerate a salt concentration of 300-2000 mmol / L in an adenosine diphosphate reaction system.

The invention belongs to the technical field of agriculture, and particularly relates to application of halomonas DY-S025GC05 to improvement of salt tolerance of plants and / or promotion of plant growth. The invention provides an application of halomonas DY-S025GC05 in improving the salt tolerance of plants and / or promoting the growth of the plants, the halomonas DY-S025GC05 is derived from deep-sea sediments below 3000 meters in a ninety-degree Hailing of Indian Ocean, and the strain can obviously improve the salt tolerance of the plants and promote the growth of the plants; at the low temperature (10 DEG C), the strain still can efficiently play a role in improving the growth performance and the salt tolerance of plants, so that a new source is provided for obtaining efficient functional strains for solving soil problems, and the strain has a huge application prospect in the fields of saline-alkali soil improvement and green biological fertilizers.

The application discloses a method for high-efficiency degradation of high-salinity wastewater by salt-tolerant bacteria in a composite inorganic salt system, and relates to the technical field of biological treatment of high-salinity industrial wastewater.The method realizes directional strengthening of the salt-tolerant performance of three strains of Staphylococcus xylosus, Alcaligenes faecalis and Bacillus cereus by a gradient-increasing NaCl domestication method.Under the condition of 40-50 g / L high salinity, the growth amount of the domesticated strains is increased by 30-40% compared with that of the non-domesticated strains, effectively relieving the osmotic pressure stress and metabolic enzyme activity inhibition of the microorganisms in the high-salinity environment.Meanwhile, the composite salt-tolerant bacteria agent is compounded based on functional complementation, and the agent has the abilities of efficient denitrification, phosphorus removal and organic matter degradation, and can adapt to the composite inorganic salt system of NaCl, CaCl2 and MgSO4 alone or in combination, and can realize synchronous and efficient removal of COD, ammonia nitrogen, total nitrogen and total phosphorus in a wide salinity range of 10-80 g / L.The method breaks through the technical limitation that the existing salt-tolerant bacteria only adapt to a single salt system and have single degradation function, and greatly widens the applicable scenarios of the biological method in the treatment of high-salinity wastewater.

The application discloses a salt-tolerant and polycyclic aromatic hydrocarbon-degradable Pseudomonas taiwanensis SYSU M80001. The strain is preserved in the China General Microbiological Culture Collection Center on March 3, 2023, and the preservation number is CGMCC No. 26731. The degradation efficiency of the strain to 100 mg / L phenanthrene is 88%, and the strain can tolerate high-concentration phenanthrene and has high-efficiency degradation capacity to high-concentration phenanthrene. Meanwhile, the strain also has good salt tolerance, and can tolerate 5% salinity at most, and has good phenanthrene degradation performance under 0-4% salinity, and the phenanthrene degradation efficiency under 3% salinity is the highest. In addition, the strain also has degradation potential to naphthalene, anthracene and other polycyclic aromatic hydrocarbons. It is shown that the Pseudomonas taiwanensis SYSU M80001 screened in the application can efficiently degrade polycyclic aromatic hydrocarbons, and is especially suitable for PAHs pollution remediation in high-salinity environments such as estuaries.

The invention provides a method for increasing salt tolerance of zebrafish through a gene knockout technology and application, belongs to the technical field of gene engineering and molecular breeding, utilizes a gene editing technology and provides proper gRNA, a circpb gene can be directly knocked out, the zebrafish with salt tolerance is obtained, and the method is expected to be popularized to economic fish.

The invention relates to the field of material science and engineering, and particularly discloses an application method of a drought-tolerant and salt-tolerant field plant water-retaining agent. The water-retaining agent is prepared from acrylic acid, acrylamide, sodium carboxymethyl cellulose, humic acid, a cross-linking agent and an initiator through graft copolymerization. The introduction of humic acid constructs an ion buffer network, and significantly improves the imbibition rate and water retention durability of the product in a saline-alkali environment. The invention also adopts an application method of the water-retaining agent in saline-alkali soil, and the key point is that the water-retaining agent is mixed into a 15-20cm root activity layer through broadcast application and deep ploughing, or the water-retaining agent is covered with soil with the thickness of 3-5cm to serve as an isolating layer during hole application. According to the application method, direct contact between dry glue and the root system is blocked through physical isolation, and the root burning phenomenon caused by reverse water absorption is effectively avoided. The salt tolerance and the application safety of the product are synergistically improved, and the transplanting survival rate and the biomass of plants in the arid and saline-alkali areas are remarkably improved.

The invention discloses bacillus cereus and application thereof in salt tolerance and growth promotion of plants, and belongs to the technical field of microorganisms. The bacillus cereus CZJ1 capable of promoting the plant growth and improving the salt stress resistance of the plant is screened and is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.36251. The bacillus cereus CZJ1 has the advantages that the bacillus cereus CZJ1 can promote the plant growth and improve the salt stress resistance of the plant; experimental results show that the bacillus cereus CZJ1 has the salt-tolerant characteristic and the functions of fixing nitrogen, dissolving phosphorus, dissolving silicate, producing iron carriers and the like, and can effectively promote absorption and utilization of plants to elements such as nitrogen, phosphorus, iron and the like, so that plant growth is promoted. The bacillus cereus CZJ1 has an obvious improvement effect on the growth of wild barley plants under salt stress and the salt stress tolerance of the wild barley plants. The invention provides a new growth-promoting bacterium for improving the salt tolerance of plants, and provides a new technical means for planting crops in saline-alkali soil.

The invention relates to the technical field of microorganisms, and particularly provides Aspergillus terreus DZ-Q1-1 and an application of the Aspergillus terreus DZ-Q1-1 in salt tolerance. The strain is an endophytic fungus separated from the root system of a halophyte, namely, sedum lineare, and is preserved in the China Center for Type Culture Collection on August 21, 2025, and the preservation number is CCTCC NO: M 20251873. Experiments show that the strain can still grow well in a culture medium containing 0.75 M of NaCl and shows strong salt tolerance. The strain and corn seedlings are co-cultured, so that the growth indexes such as plant height, root length and fresh weight of corn under salt stress can be remarkably improved, the activity of superoxide dismutase and peroxidase and the content of chlorophyll are enhanced, and cell membrane damage is reduced. The invention provides a new microbial resource for improvement of salinized soil and improvement of plant salt tolerance, and has important agricultural application value.

The invention relates to the technical field of soil improvement. The invention provides a saline-alkali soil improving microbial agent and a preparation method thereof. The saline-alkali soil improving microbial agent is prepared from the following raw materials in parts by weight: 15 to 20 parts of bacillus megatherium, 10 to 15 parts of bacillus subtilis, 8 to 12 parts of bacillus mucilaginosus, 5 to 8 parts of pseudomonas fluorescens, 6 to 10 parts of trichoderma harzianum, 5 to 8 parts of arbuscular mycorrhizal fungi and 3 to 5 parts of rhizobium. Through cooperative use of the strains, the salt content of the coastal salinized soil can be effectively reduced, the pH value can be adjusted, the nutrient index of the salinized soil can be improved, the content of microorganisms in the soil can be improved, and the root development of crops can be promoted. Meanwhile, the sectional fermentation process can solve the problem of strain antagonism, and the salt tolerance and viable count of the strain are improved in cooperation with a special composite culture medium, so that the saline-alkali soil improvement effect is further enhanced.

The invention belongs to the technical field of microorganisms, and particularly relates to a salt-tolerant grease degrading bacterium as well as a screening method and application thereof, the salt-tolerant grease degrading bacterium is preserved in China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.35335. The salt-tolerant grease degrading bacterium obtained by the invention has good salt tolerance, and can be used for degrading oil and fat. The strain can grow by taking grease as a unique carbon source under the condition of relatively high salt concentration, shows excellent grease degradation activity, is suitable for a kitchen waste composting system with relatively high salt content, and is beneficial to efficiently decomposing organic grease and improving the composting efficiency and the quality of a final product.

The invention provides a salt-tolerant bacillus, a microbial agent and application. The salt-tolerant bacillus has excellent salt tolerance, can stably survive and breed in a high-salt environment, and can activate soil nutrients, improve soil fertility, promote decomposition of organic matters of plants and provide sufficient nutrition sources for plant growth through the effects of nitrogen fixation, potassium decomposition, sulfur decomposition and the like; meanwhile, the strain or the microbial agent can enhance the stress resistance of the plants, help the plants to resist adverse environmental influence and improve the growth state; in the aspect of a biocontrol function, the salt-tolerant bacillus and the microbial agent have a remarkable inhibition effect on plant fungal diseases, and the survival rate, the biomass and the yield of crops are improved.

The invention relates to marine-derived salt-tolerant neutral phytase PHYBB1 as well as a coding gene and application thereof, and belongs to the technical field of biological enzymes. According to the invention, firstly, a bacteroides SM25 is provided, the strain is preserved in the China Center for Type Culture Collection on June 23, 2025, and the preservation number is CCTCC (China Center for Type Culture Collection) NO: M20251440. The invention further provides a coding gene of the salt-tolerant neutral phytase PHYBB1, the nucleotide sequence of the coding gene is as shown in SEQ ID No. 1, and the amino acid sequence of the coding gene is as shown in SEQ ID No. 2. According to the present invention, the provided Rosevirgica sp. SM25 is the new species of Bacteroides family, the strain can produce the salt-tolerant neutral phytase PHYBB1, and the phytase has high phosphate solubilizing activity on sodium phytate and corn-soybean meal mixture phytate phosphorus, has good salt tolerance, and is suitable for being developed into the mariculture animal feed additive, such that the salt-tolerant neutral phytase PHYBB1 can be used to produce the salt-tolerant neutral phytase PHYBB1, and the salt-tolerant neutral phytase PHYBB1 can be used to produce the salt-tolerant neutral phytase PHYBB1, such that the salt-tolerant neutral phytase PHYBB1 can be used to produce the mariculture animal feed additive,