0587572 - ÚVGZ 2025 RIV NL eng J - Journal Article
Rasool, S. - Jensen, B. - Roitsch, Thomas - V. Meyling, N.
Enzyme regulation patterns in fungal inoculated wheat may reflect resistance and tolerance towards an insect herbivore.
Journal of Plant Physiology. Roč. 300, SEP (2024), č. článku 154298. ISSN 0176-1617. E-ISSN 1618-1328
R&D Projects: GA MŠMT(CZ) LO1415
Institutional support: RVO:86652079
Keywords : entomopathogenic fungi * beauveria-bassiana * metarhizium-anisopliae * biological-control * defense responses * seed treatment * stress * metabolism * growth * plants * Plant-microbe-insect interactions * Beneficial fungi * Endophyte * Plant defense mechanisms * Compensatory growth
OECD category: Plant sciences, botany
Impact factor: 4.3, year: 2022
Method of publishing: Open access
https://www.sciencedirect.com/science/article/pii/S0176161724001299?via%3Dihub

Seed inoculation with entomopathogenic fungi (EPF) causes plant-mediated effects against arthropod herbivores, but the responses vary among EPF isolates. We used a wheat model system with three isolates representing Beauveria bassiana and Metarhizium spp. causing either negative or positive effects against the aphid Rhopalosiphum padi. Activities of six carbohydrate enzymes increased in plants showing biomass build-up after EPF inoculations. However, only aldolase activity showed positive correlation with R. padi numbers. Plants inoculated with M. robertsii hosted fewest aphids and showed increased activity of superoxide dismutase, implying a defense strategy of resistance towards herbivores. In M. brunneum-inoculated plants, hosting most R. padi, activities of catalase and glutathione reductase were increased suggesting enhanced detoxification responses towards aphids. However, M. brunneum simultaneously increased plant growth indicating that this isolate may cause the plant to tolerate herbivory. EPF seed inoculants may therefore mediate either tolerance or resistance towards biotic stress in plants in an isolate-dependent manner.
Permanent Link: https://hdl.handle.net/11104/0354702