To assess whether rain forest arbuscular mycorrhizal (AM) networks inhibit Eucalyptus tetrodonta seedlings. Additionally, to test whether iron deficiency limited E. tetrodonta growth.
Type of Study:
Common AM networks mediate belowground competition and AM fungi may exacerbate iron deficiency, thereby enhancing resistance to E. tetrodonta invasion. Common AM networks–previously unrecognized as contributors to the ashbed effect–probably help to maintain the rain forest–savanna boundary.
Ambient or fumigated soil crossed with intact (hereafter called "networked") or severed common mycorrhizal networks.Half of E. tetrodonta seedlings received iron fertilization treatment.
t-tests, 2-way ANOVA, one-way MANOVA; Kruskal-Wallis test
Response variable :
% root length colonized by AMF; Height from the soil surface to the shoot apex, length of the longest leaflet or leaf, and counted the number of leaves of every seedling. Additionally, categorically recorded foliar chlorosis of E. tetrodonta.
Tropical rain forest
Janos, D. P., Scott, J., Aristizábal, C., & Bowman, D. M. (2013). Arbuscular-mycorrhizal networks inhibit Eucalyptus tetrodonta seedlings in rain forest soil microcosms. Plos One, 8, e57716.