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Hyphal morphology modification in thermal adaptation by the white‐rot fungus Fomes sp. EUM1
Author(s) -
Ordaz Armando,
Favela Ernesto,
Meneses Marcos,
Mendoza German,
Loera Octavio
Publication year - 2012
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.201000528
Subject(s) - fomes , hypha , morphology (biology) , fungus , adaptation (eye) , botany , biology , zoology , neuroscience
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. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)