U.S.-Australia Cooperative Research: Genetics of Nodulation by Diazotrophs

该奖项将使博士杰里D。约翰逊， 怀俄明州与巴里G.罗尔夫在澳大利亚 国立大学，堪培拉，澳大利亚。 他们会调查 特性使共生细菌根瘤菌能够在广泛的 一系列植物宿主，包括大豆和非豆科植物Parasponia。 将进行实验以确定结构和 负责诱导的个体遗传单位的组织 在寄主植物的根部形成根瘤。 根瘤菌-寄主植物遗传功能的研究 特异性对于从根本上理解 对植物健康具有广泛意义的细菌-植物相互作用 和生产力。 约翰逊博士目前正在研究 一组细菌，与根瘤菌一起，占大多数 细菌-植物共生关系能够减少 分子氮 罗尔夫博士的实验室非常适合 研究分子遗传学，并做了大量的工作， 根瘤菌。

This award will enable Dr. Jerry D. Johnson from the University of Wyoming to collaborate with Dr. Barry G. Rolfe at the Australian National University, Canberra, Australia. They will investigate what properties enable the symbiotic bacteria Rhizobium to colonize a broad range of plant hosts including soybean and the non-legume Parasponia. Experiments will be conducted to determine the structure and organization of the individual genetic units responsible for induction of nodule formation on the roots of the host plants. The study of genetic functions involved in Rhizobia- host plant specificity is important for fundamental understanding of bacterial-plant interactions with broad implications for plant health and productivity. Dr. Johnson is currently working on the Frankia group of bacteria, which together with Rhizobium, accounts for most of the bacteria-plant symbiotic relationships capable of reducing molecular nitrogen. Dr. Rolfe's lab is well-suited for sophisticated studies in molecular genetics and has done extensive work with Rhizobium.