Unity Is Strength: The Power of Border Cells and Border-Like Cells in Relation with Plant Defense
Production and release of root border cells and border-like cells are fundamental processes for plant survival and development. Both types of cells are viable components of the root system that regulate its interactions with living microorganisms of the rhizosphere. Border cells are released as individual cells, whereas border-like cells remain attached to each other into small groups or as sheets after their release from the root tip. So far, border-like cells have been observed only in species belonging to the Brassicaceae family including Arabidopsis. Border cells have been largely studied in the legume species pea; in contrast, relatively little information is available on border-like cells so far due to their recent discovery. In this chapter, we present and discuss the release, organization, and the role of these cells in root protection.
“If you want to go far and win the battle of your lives, stay together, stay strong, unite peacefully for the interest of your people....vous savez bien que l’union fait la force!” A highly respected man.
KeywordsBorder Cell Root Apical Meristem Root Border Cell Root Mucilage Auxin Responsive Factor
“I dedicate this chapter to Pr. I. El Hadrami, my friend and collaborator from the University of Marrakech (Morocco), with whom I have just started a collaborative program on the role of date palm root cells (including border cells) in defense against the bayoud disease caused by Fusarium oxysporum. He tragically passed away on November 24, 2010 in a car accident. I’ll never forget his enthusiastic smile when discussing an exciting research idea.” A.D
Research on plant roots and crop protection in A. D laboratory is supported by le “Grand Réseau Régional de Haute Normandie ‘Végétal-Agronomie et Transformation des Agro-ressources” and the University of Rouen.
- Cannesan MA, Gangneux C, Lanoue A, Giron D, Laval K, Hawes M, Driouich A, Vicré-Gibouin M (2011) Association between border cell responses and localized root infection by pathogenic Aphanomyces euteiches. Ann Bot 108:459–69Google Scholar
- Cavalier DM, Lerouxel O, Neumetzler L, Yamauchi K, Reinecke A, Freshour G, Zabotina OA, Hahn MG, Burgert I, Pauly M, Raikhel NV, Keegstra K (2008) Disrupting two Arabidopsis thaliana xylosyltransferase genes results in plants deficient in xyloglucan, a major primary cell wall component. Plant Cell 20:1519–1537PubMedCrossRefGoogle Scholar
- Curlango-Rivera R, Duclos DV, Ebolo JJ, Hawes MC (2010) Transient exposure of root tips to primary and secondary metabolites: Impact on root growth and production of border cells. Plant Soil 306:206–216Google Scholar
- Darwin CR (1880) The power of movement in plants. John Murray, LondonGoogle Scholar
- Madson M, Dunand C, Li X, Verma R, Vanzin GF, Caplan J, Shoue DA, Carpita NC, Reiter WD (2003) The MUR3 gene of Arabidopsis encodes a xyloglucan galactosyltransferase that is evolutionarily related to animal exostosins. Plant Cell 7:1662–1670Google Scholar