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玉米胚乳发育包括两个过程,一是胚乳细胞进行分裂增殖和生长扩大,淀粉粒在胚乳细胞中形成,即籽粒库容的建成;二是淀粉不断合成、积累,胚乳细胞中的淀粉粒逐渐膨大,即籽粒库的充实。激素是一种重要的生理活性物质,任何器官的发育都依赖于激素平衡和有效同化物之间的相互作用。籽粒的生长发育是细胞分裂、分化、膨大和内含物不断充实的过程,研究结果认为:四大内源激素(CTK、ABA、IAA、GA)对籽粒的发育过程都有调控作用。
The development of corn endosperm includes two processes. One is that the endosperm cells are divided, proliferated and expanded. The starch granules are formed in the endosperm cells, that is, the construction of the grain storage capacity. Second, the starch is continuously synthesized and accumulated, and the starch granules in the endosperm cells gradually expand, The enrichment of grain library. Hormone is an important physiologically active substance. The development of any organism depends on the interaction between hormone balance and effective assimilation. The results showed that the four endogenous hormones (CTK, ABA, IAA, GA) had a regulatory effect on the grain development.