CRK5 protein and application of coded gene thereof in regulating and controlling growth of plant stems and leaves

Abstract

The invention discloses CRK5 protein and application of a coded gene thereof in regulating and controlling the growth of plant stems and leaves.The application provided herein specifically includes: application of a protein (CRK4 protein) formed by amino acid sequences shown in sequence 3 of a sequence table, in the following items a1) or a2): a1), inhibiting excessive growth of the plant stems and leaves; a2), breeding a plant variety with the stem and leaf excessive growth inhibited.A CRK5 gene overexpressed plant is more sensitive to ABA-inhibited excessive growth of stems and leaves, as compared to wild control plants.The inhibition on the excessive growth of stems and leaves by regulating expression level of CRK5 is of great significance, and transgenic crops with high CRK5 gene expression and stems and leaves inhibited are acquired by means of genetic engineering.The purpose of sustainable development of agriculture is satisfied, it is possible to save nutrients and reduce the spraying of chemical fertilizers and pesticides, cultivation of green pollution-free new varieties is made possible, and the invention has a promising application prospect.

Description

technical field [0001] The invention belongs to the field of biotechnology, and relates to the application of a CRK5 protein and its coding gene in regulating the growth of plant stems and leaves. Background technique [0002] Crops or other plants, such as vegetables, flowers and fruit trees, often have overgrown stems and leaves, which can be called leggy stems and leaves. Under adverse environmental conditions such as short sunshine, weak light and excessive rain, plants are prone to excessive growth, and this phenomenon gradually increases with the continuous deterioration of the natural environment and the loss of food production and economic losses. The traditional method to deal with the excessive growth of stems and leaves mainly focuses on spraying growth regulators such as paclobutrazol and chlormequat to inhibit the excessive growth of stems and leaves, but this method has the disadvantages of high cost, heavy workload and environmental pollution. In recent years...

AI Technical Summary

Problems solved by technology

Under adverse environmental conditions such as short sunshine, weak light and too much rain, plants are prone to excessive growth, and this phenomenon gradually increases with the continuous deterioration of the natural environment, resulting in food production losses and economic losses.

The traditional method to deal with the excessive growth of stems and leaves mainly focuses on spraying growth regulators such as paclobutrazol and chlormequat to inhibit the excessive growth of stems and leaves, but this method has the disadvantages of high cost, heavy workload and environmental pollution.

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