Microarray analysis of cortical cells of maize primary root grown under aereobic conditions with or without ethylene treatment

Aerenchyma is continuous gas space between shoot and roots that contributes to the internal aeration in plants. In response to excess water stress and the plant hormone ethylene, maize (Zea mays) forms aerenchyma in root cortical cells by programmed cell death (PCD). The aim of this study was to understand the molecular mechanism of ethylene-induced aerenchyma formation by identifying genes that are up- or down-regulated by ethylene treatment in the maize root cortical cells isolated by laser microdissection. Gene expression analysis in cortical cells of maize primary root

通气组织（aerenchyma）是连接植物地上部与根系的连续气腔，可协助植物实现内部气体通气。当受到水分过多胁迫与植物激素乙烯的共同诱导时，玉米（Zea mays）可通过细胞程序性死亡（programmed cell death, PCD）在其根系皮层细胞中形成通气组织。本研究旨在通过鉴定经激光显微切割（laser microdissection）分离的玉米根系皮层细胞中受乙烯处理上调或下调表达的基因，解析乙烯诱导通气组织形成的分子机制。对玉米初生根皮层细胞的基因表达分析