The tip of the iceberg:ROP2 directly interacts with SYP121 to regulate root-hair polarization,elongation,and exocytosis  

作　　者：Martiniano M.Ricardi Jose M.Estevez 

机构地区：[1]Instituto de Fisiología,Biología Molecular y Neurociencias(IFIBYNE-UBA-CONICET)and Facultad de Ciencias Exactas y Naturales,Universidad de Buenos Aires,Ciudad Universitaria,Buenos Aires C1428EHA,Argentina [2]Fundación Instituto Leloir and IIBBA-CONICET.Av.Patricias Argentinas 435,Buenos Aires C1405BWE,Argentina [3]Centro de Biotecnología Vegetal,Facultad de Ciencias de la Vida,Universidad Andres Bello,Santiago 8370146,Chile [4]ANID-Millennium Science Initiative Program-Millennium Nucleus for the Development of Super Adaptable Plants(MN-SAP),Santiago 8370146,Chile

出　　处：《Molecular Plant》2022年第7期1084-1086,共3页分子植物（英文版）

基　　金：supported by grants from ANPCyT PICT2019-0015,by ANID-Programa lniciativa Cientffica Milenio NCN2021_010;Fondo Nacional de Desarrollo Cientffico y Tecnol6gico(1200010)to J.M.E.

摘　　要：Root hairs(RHs)grow in a polar manner as cylindrical protrusions from the root epidermis.They significantly expand the root volume in the rhizosphere to search for water and nutrients,anchor the plant,and promote interactions with several kinds of microorganisms in the soil.Trichoblasts,the epidermis cell type responsible for RH development,switch from anisotropic cell elongation to tip growth through polarization of the growth machinery to a predefined RH initiation domain(RHID)at the plasma membrane.

关 键 词：TIP POLARIZATION cylindrical 

分 类 号：Q943.2[生物学—植物学]