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Rahimova, H. ; Neuhaus-Harr, A.* ; Clancy, M.V. ; Guo, Y. ; Junker, R.R.* ; Ojeda-Prieto, L.* ; Petrén, H.* ; Senft, M.* ; Zytynska, S.E.* ; Weisser, W.W.* ; Heinen, R.* ; Schnitzler, J.-P.

Geographic distribution of terpenoid chemotypes in Tanacetum vulgare mediates tansy aphid occurrence but not abundance.

Oikos, DOI: 10.1111/oik.10320 (2024)
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Intraspecific variation of specialized metabolites in plants, such as terpenoids, are used to determine chemotypes. Tansy Tanacetum vulgare exhibits diverse terpenoid profiles that affect insect communities. However, it is not fully known whether patterns of their chemical composition and associated insects vary beyond the community scale. Here, we investigated the geographic distribution of mono- and sesquiterpenoid chemotypes in tansy leaves and their relationships with specific insect communities across Germany. We sampled tansy leaves from ten plants with and five plants without aphids in each of 26 sites along a north–south and west–east transect in Germany. Hexane-extracted metabolites from leaf tissues were analyzed by gas chromatography-mass spectrometry (GC-MS). Plant morphological traits, aphid occurrence and abundance, and occurrence of ants were recorded locally. The effect of plant chemotype, plant morphological parameters, and abiotic site parameters such as soil types, temperature and precipitation on insect occurrences were analyzed. Plants clustered into four monoterpenoid and four sesquiterpenoid chemotype classes. Monoterpene classes differed in their latitudinal distribution, whereas sesquiterpenes were more evenly distributed across the transect. Aphid and ant occurrence was influenced by monoterpenoids. Plants of monoterpenoid class 1 were colonized by aphids and ants significantly more often than expected by chance, whereas in other classes there were no significant differences. Aphid abundance was affected by soil type, and average annual temperature positively correlated with the occurrence of ants. We found significant geographic patterns in the distribution of tansy chemodiversity and show that monoterpenoids affect aphid and ant occurrence, while the soil type can influence aphid abundance. We show that geographic variation in plant chemistry influences insect community assembly on tansy plants.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Chemical Diversity ; Formica Rufa ; Geographical Gradients ; Lasius Niger ; Metopeurum Fuscoviride ; Myrmica Rubra ; Plant–herbivore Interactions ; Specialized Metabolites; Essential Oil Composition; Thymus-pulegioides; Mutualistic Ants; Plant; Volatiles; Monoterpene; Leaf; Herbivores; Defense; Traits
Sprache englisch
Veröffentlichungsjahr 2024
HGF-Berichtsjahr 2024
ISSN (print) / ISBN 0030-1299
e-ISSN 1600-0706
Zeitschrift Oikos
Verlag Wiley
Verlagsort 111 River St, Hoboken 07030-5774, Nj Usa
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Environmental Simulation (EUS)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504991-001
Förderungen JPS
WWW
Deutsche Forschungsgemeinschaft DFG
DOI 10.1111/oik.10320
WOS ID 001198704800001
Scopus ID 85189782840
Erfassungsdatum 2024-04-25
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