加拿大植物学家创造了人造种子,它可以长成与遗传上相同的植物。这项技术的发明有助于挽救濒于灭绝的植物品种,还可帮助园艺家避开为防止植物病虫害扩散,而禁止将插枝从一国运到另一国的有关国际法律。安大略省圭尔夫大学的科研人员,用一株植物生产了数千粒种子。天然种子是有性繁殖,而人造种子则是从植物中取出单个细胞,将其搅和在一起,使细胞发育成为受精卵。人造种子的主要优点是,数千粒种子(也许多达10万粒)只要用一株植物就能 Canadian botanists have created artificial seeds that can grow into genetically identical plants. The invention of this technology helps to save endangered plant species and helps horticulturists avoid international laws that prevent the transport of cuttings from one country to another to prevent the spread of plant pests. Researchers at the University of Guelph in Ontario produce thousands of seeds from one plant. Natural seeds are sexually reproduced, while artificial seeds remove single cells from plants and mix them together to grow them into fertilized eggs. The main advantage of artificial seeds is that thousands of seeds (maybe as many as 100,000) can be used by just one plant