维管形成层活动周期调控研究进展  

Research progress on the regulation of cambium activity periodicity

作　　者：许会敏[1] 王莉[2] 曹德昌[1] 薛娴[1,3] 贺新强[4] 林金星[1] 

机构地区：[1]北京林业大学生物科学与技术学院,北京100083 [2]扬州大学园艺与植物保护学院,扬州225009 [3]河南科技大学农学院,洛阳471003 [4]北京大学生命科学学院,北京100871

出　　处：《科学通报》2015年第7期619-629,共11页Chinese Science Bulletin

基　　金：教育部创新团队(IRT 13047);高等学校学科创新引智计划(B13007)资助

摘　　要：维管形成层是植物的次生分生组织,其通过细胞分裂、分化产生次生木质部和次生韧皮部,形成次生维管组织系统.温带树木维管形成层的分裂活动随季节变化而表现出明显的周期性.本文综合国内外有关维管形成层领域取得的研究成果,从维管形成层活动的基本规律及环境因素对其的影响、维管形成层活动周期的激素调控和转录调控等方面,对维管形成层活动周期调控的研究进行综述,并对目前研究的现状、存在的问题及未来研究的重点方向进行了讨论和展望.The vascular cambium is a lateral meristem in the vascular tissue of plants, and is also the original center of plant secondary growth. The vascular cambium, composed of fusiform initials and ray initials, divides to produce secondary phloem to the outside and secondary xylem to the inside. In temperate zones, the cambium of trees exhibits a seasonally cyclical pattern of activity and dormancy In this review, we summarize recent advances concerning the influence of environmental conditions, plant hormonal regulation and various transcriptional regulators on cambium activity. We also discuss existing problems and future research directions in this field based on recent advances in our understanding of cambium activity. To further elucidate the regulation of cambium activity periodicity future efforts should be focused on the use of epigenetic systems and candidate gene approaches.

关 键 词：维管形成层 木材形成 环境因素 激素 基因功能 

分 类 号：Q944[生物学—植物学]