Chair's comments: recent progress in the regulation of nitrogen fixation and nitrogen assimilation genes

摘要

As new diazotrophic species are discovered (e.g. Moulin et al. 2001), there is continuous progress in the number of species for which we gather advanced molecular genetics of the nif and fix clusters (e.g. Lee et al. 2000; Desnoues et al. this volume). In addition, genomics projects for an increasing number of bacteria bring about new perspectives in our knowledge of the degree of conservation and evolution of nitrogen fixation and nitrogen assimilation genes.