Nodulation speed of Frankia sp. on Alnus glutinosa, Alnus crispa, and Myrica gale

Publisher Website
Google Scholar
Abstract
The question of compatibility between actinorhizal host plants and Frankia sp. was addressed using nodulation speed on Alnus spp. seedlings and M. gale seedlings. The speed of nodulation, defined as the mean time taken for the formation of the first prenodule, was a stable phenotype of both the Frankia strains and the host plants and a distinction between slow-, medium-, and fast-nodulating Frankia strains could be made. The speed of nodulation of a given Frankia strain did not appear to be positively correlated to the original host plant from which isolation was first performed. It was, however, positively correlated with the Frankia strain and with the host plant species used for inoculation. Some optimal host plant-endophyte combinations were thus defined. Pure spore inocula of Frankia and in vitro propagated A. glutinosa plantlets were used to confirm that both the host plant and the microbial partners genetically influenced the nodulation process.

This publication has 2 references indexed in Scilit: