Based on molecular biological techniques, plant genetic engineering and manipulation lead to a new and effective way for producing varieties resistant to diseases and insects.

建立在分子生物学技术基础上的植物基因工程操作，为抗病虫害作物品种的培育提供了一条崭新而有效的途径。

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Protoplast is an important system for plant genetic improvement, and the isolation of protoplast is an essential step for the protoplast manipulation.

原生质体是植物遗传改良的重要实验体系之一，而原生质体的分离是该体系的基础。

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The composition of fatty acid in plant seeds can be changed artificially through genetic manipulation.

植物种子中的脂肪酸成分可通过人为遗传调控发生改变。

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