蚜虫,细菌 z-bo 2020-08-18 545

　　The flowers and plants carefully planted in the garden are always covered by aphids. As a notorious pest, aphids have poor nutrients and only eat plant juice that can achieve explosive reproduction. This is because some symbiotic bacteria produce nutrients in aphids. If there is no symbiotic bacteria, aphids will not be able to reproduce and the symbiotic bacteria cannot survive outside the cells containing the bacteria. This symbiotic relationship has been passed down from generation to generation for about 200 million years. Researchers in Japan have recently discovered that aphids can synthesize proteins using genes "introduced" by endosymbiosis, and then pass them to the endosymbiosis, thereby forming a high degree of symbiosis. It is expected that this achievement will promote the integration of distantly related organisms and the development of environmentally friendly pest control methods. Atsushiakaba, an associate professor at Toyohashi Institute of Technology in Japan, previously discovered that aphids incorporate symbiotic genes into their genome.

　　This time, the research team used genetic engineering technology to study whether the "IpA4" gene synthesizes protein and how the protein is distributed in aphids. The "IpA4" gene enables aphids to produce a protein, and it was found that the produced protein is distributed to symbiotic cells in cells including bacteria. The research team believes that this indicates that aphids have evolved a transport system that transports proteins to symbiotic bacteria.

　　Mr. Wan Jun said: Animals and plants with special abilities. "