Pollen wall pattern in Arabidopsis  

作　　者：Te Xu Cheng Zhang Que Zhou Zhong-Nan Yang 

机构地区：[1]College of Life and Environmental Sciences, Shanghai Normal University

出　　处：《Science Bulletin》2016年第11期832-837,共6页科学通报（英文版）

基　　金：supported by the Major Research Plan from the Ministry of Science and Technology of China(2013CB945100);the National Natural Foundation of China(31300262)

摘　　要：The pollen wall is a solid and variously sculptured structure. This pattern is determined inside a tetrad. During meiosis, the callose wall is formed outside of the meiocyte/microspore to form a tetrad. Then, primexine is deposited between the callose wall and the microspore plasma membrane which will become undulated. The sporopollenin deposits on top of the undulated membrane and develops into the pollen wall pattern, while the callose wall is gradually degraded. In recent years, much progress has been made in the study of pollen wall pattern formation, at both molecular and genetic levels. In this review,we summarize these achievements mainly in Arabidopsis.The pollen wall is a solid and variously sculptured structure. This pattern is determined inside a tetrad. During meiosis, the callose wall is formed outside of the meiocyte/microspore to form a tetrad. Then, primexine is deposited between the callose wall and the microspore plasma membrane which will become undulated. The sporopollenin deposits on top of the undulated membrane and develops into the pollen wall pattern, while the callose wall is gradually degraded. In recent years, much progress has been made in the study of pollen wall pattern forma- tion, at both molecular and genetic levels. In this review, we summarize these achievements mainly in Arabidopsis.

关 键 词：Pollen wall pattern Sexine Callose Primexine - Plasma membrane undulation SPOROPOLLENIN 

分 类 号：Q944.4[生物学—植物学]