文献类型：会议论文

英文题名：Contribution of transgenic Casuarinaceae to our knowledge of the actinorhizal symbioses

作者：Svistoonoff, Sergio[1] Gherbi, Hassen[1] Nambiar-Veetil, Mathish[2] Zhong, Chonglu[3] Michalak, Zuzanna[1] Laplaze, Laurent[1] Vaissayre, Virginie[1] Auguy, Florence[1] Hocher, Valerie[1] Doumas, Patrick[1] Bonneau, Jocelyne[1] Bogusz, Didier[1] Franche, Claudine[1]

第一作者：Svistoonoff, Sergio

通信作者：Svistoonoff, S[1]

机构：[1]INRA, Equipe Rhizogenese, UMR DIAPC, F-34394 Montpellier 5, France;[2]Inst Forest Genet & Tree Breeding, Plant Biotechnol Div, Coimbatore 641002, Tamil Nadu, India;[3]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou, Guangdong, Peoples R China

会议论文集：15th International Frankia and Actinorhizal Plant Meeting

会议日期：OCT 19-23, 2008

会议地点：Bariloche, ARGENTINA

语种：英文

外文关键词：Casuarina; Allocasuarina; Actinorhizal symbiosis; Frankia; Agrobacterium tumefaciens; Agrobacterium rhizogenes; Root hair infection; Symbiotic signaling pathway

年份：2010

摘要：The Casuarinaceae family is a group of 96 species of trees and shrubs that are tolerant to adverse soil and climatic conditions. In the field, Casuarinaceae bears nitrogen-fixing root nodules (so called actinorhizal nodules) resulting from infection by the soil actinomycete Frankia. The association between Casuarina and Frankia is of tremendous ecological importance in tropical and subtropical areas where these trees contribute to land stabilization and soil reclamation. During differentiation of the actinorhizal nodule, a set of genes called actinorhizal nodulins is activated in the developing nodule. Understanding the molecular basis of actinorhizal nodule ontogenesis requires molecular tools such as genomics together with gene transfer technologies for functional analysis of symbiotic genes. Using the biological vectors Agrobacterium rhizogenes and A. tumefaciens, gene transfer into the two species Allocasuarina verticillata and Casuarina glauca has been successful. Transgenic Casuarinaceae plants proved to be valuable tools for exploring the molecular mechanisms resulting from the infection process of actinorhizal plants by Frankia.