title: Cyanobiont diversity within and among cycads of one field site.
abstract: Limited diversity was found among cyanobionts from a cultivated population of cycads at a field site in Florida. All isolates were classified as Nostoc but were different from the one Nostoc species found in the soil. These cyanobacteria were root endophytes of several plants of Zamia integrifolia and one of Dioon. The isolates were similar morphologically and in their reactions to four fluorescein isothiocyanate conjugated lectins. Electrophoretic protein profiles and zymograms distinguished one cyanobiont and the soil Nostoc. A tenacious Anabaena epiphyte was also discovered inhabiting the surfaces of root nodules.
authors.affiliation: Department of Natural Sciences, University of Michigan-Dearborn 48128-1491.
authors.forename: W J
authors.initials: WJ
authors.lastname: Zimmerman
authors.forename: B H
authors.initials: BH
authors.lastname: Rosen
mesh_terms: D001426:Bacterial Proteins / Q000302:isolation & purification; D000458:Cyanobacteria / Q000145:classification / Q000201:enzymology / Q000302:isolation & purification*; D010944:Plants / Q000382:microbiology*; D012988:Soil Microbiology; D013045:Species Specificity
chemical_list: D001426:Bacterial Proteins