【摘要】 位置信息是植物发育的重要机制之一,它在植物体的模式建成、细胞的分化及细胞命运的抉择过程中起重要作用。近些年的研究从细胞壁、激素、可扩散因子和非转录DNA等角度对这一问题进行了大量探索,成为植物发育生物学的一个热点领域。本文试对此作一简要介绍。更多还原

【Abstract】 Positional information is one of the important mechanisms underlying plant develop- ment because it is involved in pattern formation, cell differentiation and cell fate determination. Current studies indicate that positional information is related to certain kind of hormones, diffus- ible molecules or non-transcribed DNA and even molecule(s) localized in cell walls. Positional information may be a collaborative effect that involves these molecules and signaling.更多还原