Single, but not dual, attack by a biotrophic pathogen and a sap-sucking insect affects the oak leaf metabolome.

Autor:	van Dijk LJA; Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden., Regazzoni EDE; Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden., Albrectsen BR; Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, Umeå, Sweden., Ehrlén J; Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden., Abdelfattah A; Institute of Environmental Biotechnology, Graz University of Technology, Graz, Austria., Stenlund H; Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, Umeå, Sweden., Pawlowski K; Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden., Tack AJM; Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden.
Jazyk:	angličtina
Zdroj:	Frontiers in plant science [Front Plant Sci] 2022 Aug 03; Vol. 13, pp. 897186. Date of Electronic Publication: 2022 Aug 03 (Print Publication: 2022).
DOI:	10.3389/fpls.2022.897186
Abstrakt:	Plants interact with a multitude of microorganisms and insects, both below- and above ground, which might influence plant metabolism. Despite this, we lack knowledge of the impact of natural soil communities and multiple aboveground attackers on the metabolic responses of plants, and whether plant metabolic responses to single attack can predict responses to dual attack. We used untargeted metabolic fingerprinting (gas chromatography-mass spectrometry, GC-MS) on leaves of the pedunculate oak, Quercus robur , to assess the metabolic response to different soil microbiomes and aboveground single and dual attack by oak powdery mildew ( Erysiphe alphitoides ) and the common oak aphid ( Tuberculatus annulatus ). Distinct soil microbiomes were not associated with differences in the metabolic profile of oak seedling leaves. Single attacks by aphids or mildew had pronounced but different effects on the oak leaf metabolome, but we detected no difference between the metabolomes of healthy seedlings and seedlings attacked by both aphids and powdery mildew. Our findings show that aboveground attackers can have species-specific and non-additive effects on the leaf metabolome of oak. The lack of a metabolic signature detected by GC-MS upon dual attack might suggest the existence of a potential negative feedback, and highlights the importance of considering the impacts of multiple attackers to gain mechanistic insights into the ecology and evolution of species interactions and the structure of plant-associated communities, as well as for the development of sustainable strategies to control agricultural pests and diseases and plant breeding. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2022 van Dijk, Regazzoni, Albrectsen, Ehrlén, Abdelfattah, Stenlund, Pawlowski and Tack.)
Databáze:	MEDLINE
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