In the mutualistic symbioses between legumes and rhizobia, actinorhizal plants and Frankia,
Parasponia sp. and rhizobia, and cycads and cyanobacteria, the N 2-fixing microsymbionts …

Filamentous aerobic soil actinobacteria of the genus Frankia can induce the formation of
nitrogen-fixing nodules on the roots of a diverse group of plants from eight dicotyledonous …

INTRODUCTION Access to nutrients such as nitrogen is required for plant growth. Legumes
and nine additional plant families benefit from the nitrogen-fixing root nodule (NFN) …

A bstract The term``actinorhiza''refers both to the filamentous bacteria Frankia, an
actinomycete, and to the root location of nitrogen-fixing nodules. Actinorhizal plants are …

Agricultural practices contribute to climate change by releasing greenhouse gases such as
nitrous oxide that are mainly derived from nitrogen fertilizers. Therefore, understanding …

Highlights•Uptake of bacteria by living plant cells only occurs in five orders of flowering
plants.•A major obstacle is imposed by the cell wall and the underlying turgor …

Only species belonging to the Fabid clade, limited to four classes and ten families of
Angiosperms, are able to form nitrogen-fixing root nodule symbioses (RNS) with soil …

Some plants fix atmospheric nitrogen by hosting symbiotic diazotrophic rhizobia or Frankia
bacteria in root organs known as nodules. Such nodule symbiosis occurs in 10 plant …

Two types of symbioses are known where nitrogen-fixing soil bacteria induce the formation
of special organs, ie nodules, on the roots of their dicotyledonous host plants; legume …

The influence of saprophytic actinomycetes strains on the Discaria trinervis–Frankia
actinorhizal symbiosis was investigated. Three strains out of 122 isolated from the …