核酸、蛋白质是生物体内最重要的大分子化合物,存在于细胞质和细胞核中,这两类物质控制着植物的生长、发育和遗传等重要的生命现象。核酸和蛋白质的消长与果实的生长发育过程有着密切的关系。本文报道苹果幼果发育过程中蛋白质、核酸的含量及过氧化物酶同工酶的变化,它将有助于进一步阐明果实生长发育的实质。 Nucleic acids, proteins are the most important macromolecular compounds in the body and exist in the cytoplasm and nucleus, both of which control important life phenomena such as plant growth, development and genetics. The growth and development of nucleic acids and proteins are closely related to the growth and development of fruits. This paper reports the changes of protein and nucleic acid content and peroxidase isozymes during the development of young apple fruit, which will help to further clarify the essence of fruit growth and development.