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Bashan, Y; Khaosaad, T; Salazar, BG; Ocampo, JA; Wiemken, A; Oehl, F; Vierheilig, H. 2007. Mycorrhizal characterization of the boojum tree, Fouquieria columnaris, an endemic ancient tree from the Baja California Peninsula, Mexico. TREES-STRUCTURE AND FUNCTION. 21(3):329-335. Address: Vierheilig, H, Agr Univ Vienna, Inst Pflanzenschutz, Dept Angew Pflanzenwissensch & Pflanzenbiotechnol, Peter Jordan Str 82, A-1190 Vienna, Austria
The mycorrhizal association with the boojum tree, Fouquieria columnaris (=Idria columnaris), was studied. This unusual tree is almost exclusively endemic to granite and volcanic soils in highly arid areas of the Baja California Peninsula of Mexico. Soil and root samples from ten sites, covering the extent of geographic distribution of the tree on the peninsula, were analyzed. The roots of the boojum tree contained all structures of an arbuscular mycorrhizal (AM) association. Morphologically different species, 23 in number, were identified in close vicinity to the boojum tree indicating that F. columnaris is associated with a high number of AM species of several AM genera and families.
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