title: Isolation of an algal morphogenesis inducer from a marine bacterium.
abstract: Ulva and Enteromorpha are cosmopolitan and familiar marine algal genera. It is well known that these green macroalgae lose their natural morphology during short-term cultivation under aseptic conditions and during long-term cultivation in nutrient-added seawater and adopt an unusual form instead. These phenomena led to the belief that undefined morphogenetic factors that were indispensable to the foliaceous morphology of macroalgae exist throughout the oceans. We characterize a causative factor, named thallusin, isolated from an epiphytic marine bacterium. Thallusin induces normal germination and morphogenesis of green macroalgae.
authors.affiliation: Marine Biotechnology Institute Co. Ltd., 3-75-1 Heita, Kamaishi-shi, Iwate 026-0001, Japan. yoshihide.matsuo@mbio.jp
authors.forename: Yoshihide
authors.initials: Y
authors.lastname: Matsuo
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Imagawa
authors.forename: Mugio
authors.initials: M
authors.lastname: Nishizawa
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Shizuri
mesh_terms: D041963:Bacteroidetes / Q000737:chemistry*; D002454:Cell Differentiation; D000460:Chlorophyta / Q000166:cytology* / Q000254:growth & development; D018360:Crystallography, X-Ray; D008969:Molecular Sequence Data; D009024:Morphogenesis; D011725:Pyridines / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D044445:Ulva / Q000166:cytology / Q000254:growth & development
chemical_list: D011725:Pyridines; C498021:thallusin