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Rahimova, H. ; Heinen, R.* ; Weber, B. ; Weisser, W.W.* ; Schnitzler, J.-P.

Exogenous stimulation of Tanacetum vulgare roots with pipecolic acid leads to tissue-specific responses in terpenoid composition.

Plant Biol., DOI: 10.1111/plb.13703 (2024)
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Tanacetum vulgare L., tansy, is a perennial plant with highly variable terpenoid composition, with mono- and sesquiterpenoids being the most abundant. The high diversity of terpenoids plays an important role in mediating ecological interactions. However, the distribution of terpenoids in different tissues and inducibility of terpenoids in these tissues via biotic stress are poorly understood. We investigated changes in terpenoid profiles and concentrations in different organs following treatment of roots with pipecolic acid (Pip), a non-proteinogenic amino acid that triggers defence responses leading to induce systemic resistance (SAR) in plants. Tansy leaves and midribs contained mainly monoterpenoids, while coarse and fine roots contained mainly sesquiterpenoids. Rhizomes contained terpenoid profiles of both midribs and roots but also unique compounds. Treatment with Pip led to an increase in concentrations of mono- and sesquiterpenoids in all tissues except rhizomes. However, significantly more sesquiterpenoids was formed in root tissues in response to Pip treatment, compared to shoots. The metabolic atlas for terpenoids presented here shows that there is exceptionally strong differentiation of terpenoid patterns and terpenoid content in different tissues of tansy. This, together with differential inducibility by Pip, suggests that the chemical diversity of terpenoids may play an important role in tansy ecological interactions and defence against biotic stressors that feed on below- and aboveground organs.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Chemical Diversity ; Metabolic Atlas ; Plant‐insect Interactions ; Systemic Acquired Resistance ; Tansy ; Terpenoids ; Volatile Organic Compounds; Salicylic-acid; Organic-compounds; Plant-responses; Shoot; Synthases; Defense; Resistance; Regulator; Chemistry; Evolution
ISSN (print) / ISBN 1435-8603
e-ISSN 1438-8677
Journal Plant Biology
Publisher Wiley
Publishing Place 111 River St, Hoboken 07030-5774, Nj Usa
Non-patent literature Publications
Reviewing status Peer reviewed
Grants Deutsche Forschungsgemeinschaft (DFG)