報告題目👰🏻‍♀️：Plants and Plumbing: A design guide to efficient water transportation

主講人👫🏻：Staffan Persson

主講人簡介🙎🏻：報告人的研究重點為植物纖維素合成及調控。曾主持多項大型科研課題及科研框架計劃，曾擔任2項歐盟重大研究項目首席科學家。在《Cell》、《Science》、《Nature Plants》、《Developmental Cell》和《PNAS》等頂級學術期刊發表超過100篇的高水平學術論文。 2016和2017年連續兩次被SCI評為全球高被引學者。講授“細胞生物學”、“植物生物學”等本科及研究生課程，參與了墨爾本大學本科生課程大綱的製定。課題組和全球多個植物科學領域頂級實驗室有廣泛的國際合作🧙🏽‍♂️。在2016年籌建了墨爾本大學-馬普植物生理所聯合博士生培養項目。由於卓越學術建樹和其他方面優秀的表現，本人被授予2017年度墨爾本大學“院長榮譽獎”。

報告時間：6月5日（星期二）15💅：00

報告地點：閔行校區生物藥學樓樹華多功能廳

聯系人💆🏽：張大兵🙅‍♀️👩‍🦰，34205073🥷🏿， zhangdb@sjtu.edu.cn

主辦單位：EON体育4平台

講座中文簡介：

In plants, plasma membrane-embedded CELLULOSE SYNTHASE (CESA) enzyme complexes deposit cellulose chains into the developing cell wall. Cellulose synthesis requires two different sets of CESA complexes that are active during cell expansion and secondary cell wall thickenings, respectively. Hence, developing xylem cells, which first undergo cell expansion and subsequently deposit thick secondary walls, need to completely reorganize their cellulose synthase complexes from primary- to secondary wall-specific CESAs. Using live-cell imaging, we have analyzed the principles underlying this remodeling. We can show model how microtubules re-arrange their array structure during transition between primary and secondary wall synthesis and how they switch form one type of CESA complex to another. Our data reveal distinct and dynamic subcellular trafficking patterns that underpin the remodeling of the cellulose biosynthetic machinery, resulting in the removal and degradation of the primary wall CESA complex, with concurrent production and recycling of the secondary wall CESAs.