The latest research of the Ningxia Agricultural Biotechnology Key Laboratory has identified the drought-resistance mechanism of the drought-resistant plant Boxinnvzao in the desert area of ​​our region. The cloning of its transcript gene can be used as a source of plant drought resistance transgene breeding to cultivate new varieties of plant drought resistance. Chuanxinpuzi is a perennial herb standing upright and semi-straight in the genus Roqueco. It is commonly known as the old melon head, and the reedgrass, etc. The plant contains various alkaloids such as phytol, a strong odor, and poisonous stems and leaves, but its pollen is non-toxic. , is an excellent honey plant. The C. chinensis grows in semi-fixed sand dunes and desert sands in the secondary desert, and it is distributed in desert areas in our region. The research group compared the physiological characteristics of drought resistance of C. chinensis and other desert plants. It was found that the C. chinensis leaves have strong water-holding and water-regulating abilities, low transpiration rate, high water use efficiency, and can maintain high levels under severe water shortage conditions. The leaf relative water content and water potential have high water potential resistance to dehydration; the soluble sugar in the osmotic adjustment material plays a leading role; the carotenoid content in the leaves of C. chinensis is significantly higher than other plants, and its antioxidant protection enzymes SOD, POD and CAT The activity is high, and the protection ability is strong under strong light and drought conditions, which can avoid the burn of desert light; the ratio of carbon to nitrogen in the plant is higher than that of licorice. Experts believe that this result closely integrates the characteristics of natural regions in our region and fills gaps in the drought resistance mechanism and cloning of drought-resistant genes at both home and abroad. This provides theoretical guidance for the artificial cultivation and ecological construction of desert plants in our region and western regions. Scientific basis has broad application prospects.
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