35 results about "ACC deaminase" patented technology

The invention discloses a strain of alfalfa root growth-promoting rhizobacteria MJM-5 and application of the alfalfa root growth-promoting rhizobacteria MJM-5. A pseudomonas fluorescens strain MJM-5 provided by the invention has the preservation number of CGMCC (China General Microbiological Culture Collection Center) No.6293. The pseudomonas fluorescens strain MJM-5 has at least one kind of application shown in 1) to 4): 1) ACC (aminocyclopropane carboxylic acid) deaminase preparation; 2) IAA (indole acetic acid) preparation; 3) siderophores preparation; and 4) plant growth promotion under saline alkali stress. Experiments prove that the strain of alfalfa root growth-promoting rhizobacteria MJM-5 obtained through separation can be used for synthesizing ACC deaminase and IAA siderophores, and in addition, the alfalfa root growth-promoting rhizobacteria MJM-5 has the effects of effectively promoting the plant nutrition absorption, regulating the plant growth and improving the stress resistance capability of plants under the stress conditions in the saline alkali stress environment.

The invention discloses a tea tree growth-promoting rhizobacterium of which the classification designation is Serratia marcescens. The strain number is JW-CZ2. The Serratia marcescens is collected by China Center for Type Culture Collection, the collection number is CCTCC M 2015095, and the collection date is March 10th, 2015. The invention also discloses application of the Serratia marcescens in promoting tea tree growth. The JW-CZ2 strain has high solubility for insoluble phosphates, such as tricalcium phosphate, magnesium phosphate and iron phosphate. The JW-CZ2 strain has IAA (indoleacetic acid) secretion capacity and ACC deaminase producing capacity. When a tea tree seedling plant is inoculated in the JW-CZ2 microbial inoculant, the microbial inoculant can obviously promote the growth of the tea tree seedling. Therefore, the tea tree growth-promoting rhizobacterium Serratia marcescens can provide an excellent strain resource for future development of special microbial fertilizers for tea trees.

The invention provides a strain of Bacillus wilsonii, and the preservation number of the strain is CCTCC NO.M2019204. The present inventor screened a strain of microorganisms from the roots of domesticated water hyacinth, found that the strain had strong resistance to heavy metals, and was identified as Bacillus wiedmannii strain by colony morphology, biochemistry and 16S rDNA sequencing analysis. ), the strain of Bacillus welchii can improve the ability of water hyacinth to accumulate heavy metals, and the heavy metals include at least one of Cd, Zn, Mn, Ni, Cu, and Pb. At the same time, it can release IAA and ACC deaminase to promote the growth of water hyacinth.

The invention discloses a medicago pseudomonas strain capable of producing ACC (1-aminocyclopropane-1-carboxylate) deaminase and application of the medicago pseudomonas strain, and relates to a medicago pseudomonas strain and application thereof. The pseudomonas (pseudomonas sp.) MJM-9 is preserved in the general microorganism center of the China microorganism culture preservation management committee in 26th July, 2012, and the preservation number of the pseudomonas MJM-9 is CGMCC NO.6294. The medicago pseudomonas strain containing the ACC deaminase is used as bacterial manure for growing crops. The medicago pseudomonas strain can generate the ACC deaminase, secrete auximone IAA (indole acetic acid), synthesize siderophores, reduce the concentration of ethylene inside a plant under the condition of environmental stress, promote the plant to grow fast, particularly promote growth and development of a root system of the plant, and increase utilization rate of fertilizers. Besides, when the strain is applied to agricultural production, growth of plants can be promoted, yield of crops can be increased, and stress resistance of the crops is improved.