Open AccessCharacterization of the common nodulation genes of the photosynthetic Bradyrhizobium sp. ORS285 reveals the presence of a new insertion sequence upstream of nodA
Author(s) -
Chaintreuil Clemence,
Boivin Catherine,
Dreyfus Bernard,
Giraud Eric
Publication year - 2001
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2001.tb09450.x
Subject(s) - rhizobia , bradyrhizobium , biology , botany , photosynthesis , gene cluster , fabaceae , gene , bradyrhizobium japonicum , bacteria , symbiosis , genetics , rhizobiaceae , rhizobium
We isolated and characterized nodA genes from photosynthetic and non‐photosynthetic rhizobia nodulating the legume genus Aeschynomene , and found that the nodA sequence from photosynthetic stem‐nodulating bacteria was phylogenetically distant from the other already described nodA genes. Characterization of the photosynthetic strain ORS285 common nod gene cluster ( nodABC ) showed, upstream of nodA , the presence of a new insertion sequence element belonging to the IS3 family and specific to a group of photosynthetic strains from Aeschynomene .