Leymus chinensis fructan hydrolases, and encoding genes and use thereof

A technology of fructan hydrolase and encoding gene, which is applied to Leymus chinensis fructan hydrolase and its encoding gene and application field, and achieves the effect of high practical application value, broad application prospect and improvement of stress resistance.
CN101412990AInactive Publication Date: 2009-04-22INST OF BOTANY CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF BOTANY CHINESE ACAD OF SCI
Publication Date
2009-04-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses a Chinese wildrye levan hydrolase, and an encoded gene and an application thereof. The albumen is Chinese wildrye levan hydrolase, which is the protein having one of the following amino acid residue sequence: 1) the amino acid residue sequence of the sequence 1 in the sequence table; and protein that is obtained by substituting and / or deficiency and / or addition of one or more amino acid residue to the amino acid residue sequence of the sequence 1 in the sequence table and has [beta]-2,1 glycosidic bond hydrolase function. The encode gene of the low temperature proof albumen can be transferred to a plant to improve the stress-resistance of the plant. The gene has a significant theoretical and practical significance for the research of the stress-resistance molecular mechanism of plant and the breeding of stress-resistance varieties of plant. The gene provides an economical, fast and effective approach for improving the stress-resistance of crop. The gene has wide applications and market prospect in the agriculture field.
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Description

technical field

[0001] The present invention relates to Leymus chinensis fructan hydrolase and its encoding gene and its application, in particular to the use of Leymus chinensis fructan hydrolase and its encoding gene in cultivating plants with improved stress resistance and hydrolyzing fructan β-2,1 glucoside application in the key. Background technique

[0002] Fructan is a linear or / and branched polymer composed of fructose, and is an important storage carbohydrate of about 15% of angiosperms. With the discovery of fructan-metabolizing enzymes, fructan not only serves as short-term or long-term storage of plant heterotrophic organ roots, stems, grains and autotrophic organ leaves, but also has a variety of important physiological functions, such as regulating plant adaptation. Low-temperature photosynthesis, regulation of plant sucrose allocation, and adaptation of plants to water deficits, high concentrations of CO 2 , Hypoxic conditions, etc. In addition, fructan ha...

Claims

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