Background Nitrogen is an essential nutrient in plant growth. The ability of a plant to supply
all or part of its requirements from biological nitrogen fixation (BNF) thanks to interactions …

Bacteria belonging to the genera Rhizobium, Mesorhizobium, Sinorhizobium,
Bradyrhizobium, and Azorhizobium (collectively referred to as rhizobia) grow in the soil as …

Nitrogen is generally considered one of the major limiting nutrients in plant growth. The
biological process responsible for reduction of molecular nitrogen into ammonia is referred …

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 …

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 …

Mycorrhizosphere microbes enhance functioning of the plant–soil interface, but little is
known of their ecology. This study aims to characterize the ascomycete communities …

Symbiotic association of the N 2-fixing actinomycete Frankia with the roots of more than 200
tree species from 24 genera of 8 families of angiosperms has been studied since 1829. The …

Actinorhizal plants, including those of the genus Alnus (alders; Betulaceae), and their
nitrogen‐fixing bacterial symbionts rely on mycorrhizal fungi for phosphorus and other …

Molecular phylogenetic approaches have begun to outline the origin, distribution and
diversity of actinorhizal partners. Geographic isolation of Frankia and its host plants resulting …

Recent changes in the pattern of agricultural practices from the use of hazardous pesticides
to natural (organic) cultivation have brought into focus the use of agriculturally important …