Laboratoire Glycobiologie et Matrice Extracellulaire Végétale (EA 4358), Grand Réseau de Recherche VASI Végétal-Agronomie-Sols et Innovations et Plate Forme d'Imagerie Cellulaire (PRIMACEN) de Haute Normandie, Université de Rouen, 76821 Mont Saint Aignan Cedex, France.
Curr Opin Plant Biol. 2013 Aug;16(4):489-95. doi: 10.1016/j.pbi.2013.06.010. Epub 2013 Jul 12.
Border cells and border-like cells are released from the root tip as individual cells and small aggregates, or as a group of attached cells. These are viable components of the root system that play a key role in controlling root interaction with living microbes of the rhizosphere. As their separation from root tip proceeds, the cells synthesize and secrete a hydrated mucilage that contains polysaccharides, secondary metabolites, antimicrobial proteins and extracellular DNA (exDNA). This exDNA-based matrix seems to function in root defense in a way similar to that of recently characterized neutrophil extracellular traps (NETs) in mammalian cells. This review discusses the role of the cells and secreted compounds in the protection of root tip against microbial infections.
边缘细胞和边缘状细胞作为单个细胞和小聚集体，或者作为一组附着的细胞从根尖释放。这些是根系的有活力的组成部分，在控制根与根际微生物的相互作用方面起着关键作用。随着它们与根尖的分离，细胞合成并分泌一种含有多糖、次生代谢物、抗菌蛋白和细胞外 DNA（exDNA）的水合黏液。这个基于 exDNA 的基质似乎在根防御中发挥作用，类似于最近在哺乳动物细胞中表征的中性粒细胞细胞外陷阱（NETs）。本综述讨论了这些细胞和分泌化合物在保护根尖免受微生物感染中的作用。
