RT Journal Article
T1 Endophyte inoculation enhances Ulmus minor resistance to Dutch elm disease
A1 Martínez Arias, Clara
A1 Sobrino Plata, Juan
A1 Ormeño Moncalvillo, Sara María
A1 Gil, Luis Alfonso
A1 Rodríguez Calcerrada, Jesus
A1 Martín García, Juan Antonio
AB Certain fungal endophytes improve plant resistance to biotic stresses in forest trees. In this study, three stem fungal endophytes belonging to classes Cystobasidiomycetes, Eurotiomycetes and Dothideomycetes were selected from 210 isolates for their potential as enhancers of Ulmus minor resistance to Ophiostoma novo-ulmi. We evaluated phenotypic traits of these endophytes that could be beneficial for inhibiting O. novo-ulmi in the host plant. Under in vitro conditions, the Dothideomycetous isolate YCB36 strongly inhibited O. novo-ulmi growth, released antipathogenic VOCs, chitinases and siderophores, and overlapped with the pathogen in nutrient utilization patterns. These functional traits could explain the 40% reduction in leaf wilting due to O. novo-ulmi in elm trees pre-inoculated with this endophyte. Ulmus minor trees inoculated with this endophyte showed increased leaf stomatal conductance and higher concentrations of flavonoids and total phenolic compounds in xylem tissues, suggesting induction of defence metabolism.
PB Elsevier
SN 1754-5048
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/98812
UL https://hdl.handle.net/20.500.14352/98812
LA eng
NO Martínez-Arias, C., et al. «Endophyte Inoculation Enhances Ulmus Minor Resistance to Dutch Elm Disease». Fungal Ecology, vol. 50, abril de 2021, p. 101024. https://doi.org/10.1016/j.funeco.2020.101024.
NO This study was funded by the project GENESIS (AGL-2015-66952-R; MINECO/ERDF) and by an agreement for elm conservation between Universidad Politécnica de Madrid and Dirección General de Desarrollo Rural y Política Forestal (MAPA/EAFRD).
NO Universidad Politécnica de Madrid
NO Ministerio de Economía y Competitividad (España)
NO Ministerio de Agricultura, Pesca y Alimentación (España)
DS Docta Complutense
RD 4 abr 2025