Plant secondary compounds in soil and their role in belowground species interactions

Bodil K. Ehlers, Matty P. Berg, Michael Staudt, Martin Holmstrup, Marianne Glasius, Jacintha Ellers, Sara Tomiolo, René B. Madsen, Stine Slotsbo, Josep Penuelas*

*Corresponding author for this work

Research output: Contribution to journalReview articleAcademicpeer-review

3 Citations (Scopus)

Abstract

Knowledge of the effect of plant secondary compounds (PSCs) on belowground interactions in the more diffuse community of species living outside the rhizosphere is sparse compared with what we know about how PSCs affect aboveground interactions. We illustrate here that PSCs from foliar tissue, root exudates, and leaf litter effectively influence such belowground plant-plant, plant-microorganism, and plant-soil invertebrate interactions. Climatic factors can induce PSC production and select for different plant chemical types. Therefore, climate change can alter both quantitative and qualitative PSC production, and how these compounds move in the soil. This can change the soil chemical environment, with cascading effects on both the ecology and evolution of belowground species interactions and, ultimately, soil functioning.

Original languageEnglish
Pages (from-to)716-730
Number of pages15
JournalTrends in Ecology & Evolution
Volume35
Issue number8
Early online date2020
DOIs
Publication statusPublished - Aug-2020

Keywords

  • VOLATILE ORGANIC-COMPOUNDS
  • ISOPRENOID EMISSIONS
  • HYDROLYSIS PRODUCTS
  • SOLIDAGO-CANADENSIS
  • QUERCUS-ILEX
  • ROOT
  • METABOLITES
  • RHIZOSPHERE
  • ALLELOPATHY
  • DIVERSITY

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