title: Requisite Morphologic Interaction for Attachment between Ulva pertusa (Chlorophyta) and Symbiotic Bacteria.
abstract: : In order to understand the morphogenesis-inducing mechanism of Ulva pertusa by symbiotic bacteria, we observed the requisite conditions of bacteria for attachment to U. pertusa for algal morphogenesis. Non-morphogenesis-inducing bacterial mutants derived by ultraviolet irradiation did not attach onto the surface of this alga. Scanning electron microscopic observation during the process of morphogenesis in U. pertusa revealed a network-like structure formed on the algal surface within 1 week after application of bacteria. The bacteria attached onto the alga after 2 weeks of incubation. After this attachment process the morphologic change was observed in U. pertusa.
authors.affiliation: Marine Biotechnology Institute Co., Ltd., Shimizu, Shizuoka 424-0902, Japan
authors.initials: K
authors.lastname: Nakanishi
authors.initials: M
authors.lastname: Nishijima
authors.initials: AM
authors.lastname: Nomoto
authors.initials: A
authors.lastname: Yamazaki
authors.initials: N
authors.lastname: Saga