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新加坡分子农业生物研究学院的研究人员,在用基因技术防治蔬菜软腐病方面,取得了进展。他们提取出一种抗软腐病基因,能够干扰病原菌的传递,有效地破坏其致病的能力。软腐病是导致蔬菜腐烂的一种病害。与其他单细胞细菌一样,软腐病的病原菌——欧文氏杆菌,靠一种特殊的信号传递方法,来互相通信。研究人员在研究中发现,欧文氏杆菌会排出一种称为“自动诱导器”的小分子物质,让它和其它同类细菌排出的诱导器互相结合,然后再吸收回细胞内。当病菌之间通过诱导器交换信号。诱导器积累到一定数量时,病菌就会
Researchers at the Institute of Molecular Agrobiological Research in Singapore have made progress in using gene technology to control soft rot disease in vegetables. They extracted a gene that is resistant to soft rot, which interferes with the transmission of pathogens and effectively destroys its pathogenicity. Soft rot is a disease that causes vegetable rot. Like other unicellular bacteria, the soft-rot pathogen, Erwinia, communicates with each other by a special signaling method. Researchers found in the study that Erwinia excreted a small molecule known as an “autoinducer” that allowed it to bind to an inducer emanating from other bacteria of the same type and then be absorbed back into the cell. When the germs exchange signals through the induction. Inducer accumulated to a certain amount, the bacteria will