53 results about "Curvularia" patented technology

The invention discloses Bacillus licheniformis 202, which has been preserved in China Center for Type Culture Collection, Wuhan University, Luojiashan Street, Wuchang District, Wuhan City, Hubei on July 2, 2007, wherein the preserving number is CCTCC NO: M207093. The invention also discloses a preparation method and application thereof. A Bacillus licheniformis 202 strain is obtained by screening through plate confronting and pot experiment, can effectively inhibit the growth of banana vascular wilt pathogens, has a wide antimicrobial spectrum, has antagonistic action on a plurality of pathogenic fungi such as cotton wilt pathogens, cotton verticillium wilt pathogens, watermelon wilt pathogens, tomato wilt pathogens, curvularia leaf spot pathogens or banana anthracnose pathogens, and has good environmental safety and good development and application prospect.

The invention discloses bacillus subtilis A16, which is preserved in China Center for Type Culture Collection (CCTCC) with CCTCC NO. 209105. The bacterial colony of the Bacillus subtilis A16 is oyster white on a beef extract peptone culture medium, has irregular shape and no luster, is not wet, has irregular edge, has diameter of 0.5-1cm, and has microfold surface, straight rod-shaped thallus andelliptic spore. The invention also discloses a preparation method and application of the bacillus subtilis A16. The bacillus subtilis A16 has broad bacteriostasis, can suppress exserohilum turcicum and helminthosporium maydis, has higher antagonism for exserohilum turcicum bacteria, helminthosporium maydis bacteria, maize curvularia leaf spot fungus, verticillium dahliae kleb, wheat scab pathogen, colletotrichum musae and banana vascular wilt bacteria, and has high prevention cure efficiency, and good safety and development application prospect.

The present invention is directed to methods and compositions of endophytic fungi that confer stress tolerance in inoculated plants, including both monocots and dicots. In particular, Curvularia species, isolated from a host grass Dichanthelium languinosum growing in the geothermal zones of Lassen Volcanic and Yellowstone National Parks, confers such stress tolerance. Upon inoculating a target plant or plant part with endophytic fungi, the resulting plant shows stress tolerance, particularly drought and thermal tolerance.

The invention relates to the technical field of low temperature damage resistance, in particular to the application of a paclobutrazol.pyraclostrobin pesticide composition in preparing a crop low temperature damage resisting chemical regulator. The pesticide composition in the application is prepared from paclobutrazol and pyraclostrobin, wherein the mass ratio of the paclobutrazol to the pyraclostrobin is 1-2 to 1-10. Compared with a conventional single-purpose chemical regulator, a paclobutrazol.pyraclostrobin suspended seed coating disclosed by the invention has good regulatory effects on low temperature damage and also has better prevention and control effects on the important disease of curvularia leaf spot; in addition, the regulatory effects of a mixture of the paclobutrazol and thepyraclostrobin on low temperature damage resistance and disease resistance are significantly higher than those of single paclobutrazol or single pyraclostrobin; the paclobutrazol.pyraclostrobin pesticide composition has the characteristics of one drug with multiple control effects, so that the use frequency and the use amount of pesticides can be reduced and further the production cost is reduced.

The invention relates to a molecular detection primer for banana cladosporium cucumerinum and a detection method and belongs to the technical field of crop disease detection and biotechnology. The specific primer comprises an upstream primer BMF: 5'-GCTACAACGCCGAAATGACC-3' and a downstream primer BMR: 5'-GACGTTGCCCAATACCAAGC-3'. The detection primer and the detection method provided by the invention can be used for detection and identification of banana cladosporium cucumerinum pure culture and also can be used for detecting the banana leaves and fruit; the detection primer provided by the invention is high in specificity and sensitivity; the detection method is high in practicability and simple and convenient in operation; the molecular detection primer can be used for realizing the early detection for banana cladosporium cucumerinum and effectively identifying the similar anthracnose, curvularia disease, black spot, spore leaf spot disease and dark agaricus leaf spot disease of banana, early warning, preventing and controlling the banana cladosporium cucumerinum; the molecular detection primer has significance in preventing and treating disease spreading.

The invention discloses a steroid 11β-hydroxylase from Curvularia lunae, its coding gene and application. The steroid 11β-hydroxylase provided by the present invention is the protein shown in SEQ ID No.1 (ie CL3-CYP021 protein). In addition, the present invention also provides a complete set of proteins consisting of steroid 11β-hydroxylase and the protein shown in SEQ ID No.2 (ie CL3-CPR protein). The present invention expresses CL3-CYP021 protein (or CL3-CYP021 and CL3-CPR protein) in heterologous microorganisms to catalyze the synthesis of hydrocortisone (HC) and 14α-hydroxycortisol. The present invention replaces the original filamentous fungus with yeast for biocatalytic fermentation to produce HC, which has the advantages of shortening fermentation time, simplifying fermentation conditions and separation and extraction steps, and reducing production costs, and is important for replacing traditional hydrocortisone biocatalytic fermentation production methods significance.