Journal of Chemical Ecology

, Volume 27, Issue 10, pp 2029–2040

Chemical Recognition of Partner Plant Species by Foundress Ant Queens in Macaranga–Crematogaster Myrmecophytism


  • Yoko Inui
    • Center for Ecological ResearchKyoto University
  • Takao Itioka
    • Graduate School of Bioagricultural SciencesNagoya University
  • Kaori Murase
    • Graduate School of Bioagricultural SciencesNagoya University
  • Ryohei Yamaoka
    • Department of Applied BiologyKyoto Institute of Technology
  • Takao Itino
    • Faculty of AgricultureKagawa University

DOI: 10.1023/A:1012290820150

Cite this article as:
Inui, Y., Itioka, T., Murase, K. et al. J Chem Ecol (2001) 27: 2029. doi:10.1023/A:1012290820150


The partnership in the CrematogasterMacaranga ant–plant interaction is highly species-specific. Because a mutualistic relationship on a Macaranga plant starts with colonization by a foundress queen of a partner Crematogaster species, we hypothesized that the foundress queens select their partner plant species by chemical recognition. We tested this hypothesis with four sympatric Macaranga species and their Crematogaster plant-ant species. We demonstrated that foundress Crematogaster queens can recognize their partner Macaranga species by contact with the surface of the seedlings, that they can recognize compounds from the stem surface of seedlings of their partner plant species, and that the gas chromatographic profiles are characteristic of the plant species. These findings support the hypothesis that foundress queens of the Crematogaster plant-ant species select their partner Macaranga species by recognizing nonvolatile chemical characteristics of the stem surfaces of seedlings.

partner-plant selectionpartner-plant recognitionant–plant interactionsmutualismchemical recognitionmyrmecophyteant dispersalinsect–plant coevolution

Copyright information

© Plenum Publishing Corporation 2001