title: Hyphal morphology modification in thermal adaptation by the white-rot fungus Fomes sp. EUM1.
abstract: A thermotolerant white-rot fungus was identified as Fomes sp. EUM1. The strain exhibited maximum growth at 30 °C, with activation and inactivation energy values of 68 and 32 kJ/mol, respectively. The temperature affected the hyphal morphology, which was related to the thermotolerance of the microorganism: A shift from 30 to 40 °C in the growth temperature caused a decrease (15%) in mycelium branching; also longer (32%) and thinner (13%) hyphae were produced. In addition, as the temperature rose from 25 to 45 °C, an increase was observed in both the hyphal surface area (43%) and the surface growth rate (193%). The modification of the hyphal morphology suggests a strategy to colonize nutrient-rich areas while spending minimal energy for biomass formation under thermal stress.
authors.affiliation: Department of Biotechnology, Universidad Autonoma Metropolitana-Iztapalapa, Mexico City, DF, Mexico.
authors.forename: Armando
authors.initials: A
authors.lastname: Ordaz
authors.forename: Ernesto
authors.initials: E
authors.lastname: Favela
authors.forename: Marcos
authors.initials: M
authors.lastname: Meneses
authors.forename: German
authors.initials: G
authors.lastname: Mendoza
authors.forename: Octavio
authors.initials: O
authors.lastname: Loera
mesh_terms: D000222:Adaptation, Physiological; D018533:Biomass; D055453:Coriolaceae / Q000254:growth & development* / Q000502:physiology; D025301:Hyphae / Q000254:growth & development; D013696:Temperature