Recognizing Plant Physiology author Zhijuan Wang

Zhijuan Wang co-first author of AtLURE1/PRK6-Mediated Signaling Promotes Conspecific Micropylar Pollen Tube Guidance

Current position: Postdoc, School of Life Sciences, Peking University

Education: Ph.D. in School of Life Sciences, Peking University, Beijing, China; Bachelor in College of Plant Protection, Nanjing Agricultural University, Nanjing, China

Non-scientific Interests: Walking

Brief bio: In 2014, I started my Ph.D. project in School of Life Sciences at Peking University, focusing on signal communication during plant reproductive development, under the direction of Prof. Li-Jia Qu and Hongya Gu. In our previous Science paper, we characterized that seven cysteine-rich peptides AtLURE1s and their corresponding receptor PRK6 are involved in promoting conspecific pollen precedence in Arabidopsis thaliana, thus serving as a major prezygotic reproductive isolation barrier. We further identified related peptides XIUQIUs that attract pollen tubes in a non-species-specific manner. In this study we employed three different types of semi-iv vivo ovule targeting assays to reveal that AtLURE1/PRK6-mediated signaling is also involved in conspecific pollen tube precedence at the micropyle, representing an additional prezygotic isolation barrier.

 

中文

姓名：王志娟

职位：北京大学生命科学学院，博士后

教育背景：2014/09-2019/12 北京大学，生命科学学院，博士

2010/09-2014/07 南京农业大学，植物保护学院，学士

兴趣爱好：散步

个人简介：2014年我有幸在北京大学生命科学学院开启攻读博士学位之旅，在瞿礼嘉和顾红雅两位老师的指导下从事植物生殖发育过程中的信号交流研究。我们揭示出七个小肽信号分子AtLURE1s及其受体PRK6参与拟南芥中同种花粉优先过程、作为一种合子前建立的生殖障碍促进种间遗传隔离的分子机制；同时我们还鉴定出另外一组没有种属特异性的花粉管吸引信号“绣球”，完善了小肽信号调控有花植物受精过程的作用模型。在本篇论文中，我们利用AtLURE1s的七突突变体atlure1null，借助半体内吸引、花粉管和胚珠竞争性三种实验手段，研究并发现了AtLURE1/PRK6介导的信号通路同样在珠孔导向过程中促进同种花粉优先，建立了一道新的合子前生殖隔离屏障。