title: Rhizobitoxine production by Bradyrhizobium elkanii enhances nodulation and competitiveness on Macroptilium atropurpureum.
abstract: Application of 1-aminoocyclopropane-1-carboxylic acid, an ethylene precursor, decreased nodulation of Macroptilium atropurpureum by Bradyrhizobium elkanii. B. elkanii produces rhizobitoxine, an ethylene synthesis inhibitor. Elimination of rhizobitoxine production in B. elkanii increased ethylene evolution and decreased nodulation and competitiveness on M. atropurpureum. These results suggest that rhizobitoxine enhances nodulation and competitiveness of B. elkanii on M. atropurpureum.
authors.affiliation: Institute of Genetic Ecology, Tohoku University, Katahira, Aoba-ku, Sendai, 980-8577, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Yuhashi
authors.forename: N
authors.initials: N
authors.lastname: Ichikawa
authors.forename: H
authors.initials: H
authors.lastname: Ezura
authors.forename: S
authors.initials: S
authors.lastname: Akao
authors.forename: Y
authors.initials: Y
authors.lastname: Minakawa
authors.forename: N
authors.initials: N
authors.lastname: Nukui
authors.forename: T
authors.initials: T
authors.lastname: Yasuta
authors.forename: K
authors.initials: K
authors.lastname: Minamisawa
mesh_terms: D000596:Amino Acids / Q000494:pharmacology; D000598:Amino Acids, Cyclic; D020369:Bradyrhizobium / Q000235:genetics / Q000378:metabolism* / Q000502:physiology; D005030:Ethylenes / Q000096:biosynthesis / Q000494:pharmacology; D007887:Fabaceae / Q000382:microbiology*; D009586:Nitrogen Fixation / Q000187:drug effects*; D010946:Plants, Medicinal; D010957:Plasmids / Q000235:genetics; D011412:Propanolamines / Q000378:metabolism* / Q000494:pharmacology
chemical_list: D000596:Amino Acids; D000598:Amino Acids, Cyclic; D005030:Ethylenes; D011412:Propanolamines; C023863:1-aminocyclopropane-1-carboxylic acid; C036216:ethylene; C041618:rhizobitoxine