title: Differential effects of two strains of Rhizophagus intraradices on dry biomass and essential oil yield and composition in Calamintha nepeta.
abstract: The aim of this work was to determine the effects of two geographically different strains of Rhizophagus intraradices (M3 and GA5) on the total biomass and essential oil (EO) yield and composition of Calamintha nepeta, with or without phosphorus (P) fertilization, under greenhouse conditions. The plant biomass was not significantly affected by any of the treatments, showing higher values in control plants. Strains had a differential response in their root colonization rates: M3 reduced these parameters while GA5 did not modify them. Both strains affected EO yield in absence of P fertilization: M3 promoted EO yield in C. nepeta plants and GA5 resulted in negative effects. The percentage composition of EO was not significantly modified by either strain or P fertilization. M3 strain could be a potential fungal bioinoculant for production and commercialization of C. nepeta in the aromatic plant market.
authors.affiliation: Departamento de Biodiversidad y Biología Experimental, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina. rcolombo@soilgene.net
authors.forename: Roxana P
authors.initials: RP
authors.lastname: Colombo
authors.forename: Alicia
authors.initials: A
authors.lastname: Martínez
authors.forename: Agustina
authors.initials: A
authors.lastname: Fernández di Pardo
authors.forename: Laura
authors.initials: L
authors.lastname: Fernández Bidondo
authors.forename: Catalina
authors.initials: C
authors.lastname: van Baren
authors.forename: Paola
authors.initials: P
authors.lastname: di Leo Lira
authors.forename: Alicia M
authors.initials: AM
authors.lastname: Godeas
mesh_terms: D018533:Biomass; D055137:Glomeromycota; D027521:Nepeta / Q000378:metabolism* / Q000382:microbiology*; D009822:Oils, Volatile / Q000737:chemistry*
chemical_list: D009822:Oils, Volatile