title: The role of papillae during the infection process in the Gunnera-Nostoc symbiosis.
abstract: Gunnera manicata L. glands consist of up to nine separate papillae. Surgical removal of papillae showed that more than two papillae were needed for successful infection with Nostoc. Infection occurs only in the enclosed space between adjacent papillae. Dividing Gunnera cells in the enclosed space are the sites of infection.
authors.affiliation: Research Institute for Advanced Science and Technology, University of Osaka Prefecture, Gakuen-cho, Sakai, Osaka, 599-8570, Japan. uheda@riast.osakafu-u.ac.jp
authors.forename: E
authors.initials: E
authors.lastname: Uheda
authors.forename: W B
authors.initials: WB
authors.lastname: Silvester
mesh_terms: D002455:Cell Division; D000458:Cyanobacteria / Q000254:growth & development / Q000502:physiology*; D019684:Magnoliopsida / Q000166:cytology / Q000254:growth & development / Q000382:microbiology*; D018514:Plant Structures / Q000166:cytology / Q000254:growth & development / Q000382:microbiology; D013559:Symbiosis