title: When three's not a crowd.
authors.forename: M A
authors.initials: MA
authors.lastname: Thomas
mesh_terms: D001203:Ascomycota / Q000502:physiology; D000458:Cyanobacteria / Q000502:physiology; D056890:Eukaryota / Q000502:physiology; D008011:Lichens / Q000502:physiology; D018521:Plant Physiological Phenomena; D013559:Symbiosis