1. Al-Qawari AA . (2002). Relationships among nitrogen availability, vesicular-arbuscular mycorrhizae, and Bromus tectorum in disturbed rangeland sites in Colorado. PhD dissertation. Colorado State University: Fort Collins, Colorado, USA.
2. Altschul SF, Gish W, Miller W, Myers EW, Lipman DJ . (1990). Basic local alignment search tool. J Mol Biol 215: 403–410.
3. Baylis GTS . (1975). The magnolioid mycorrhiza and mycotrophy in root systems derived from it. In: Sanders F-E, Mosse B, Tinker P-B eds. Endomycorrhizas. Academic Press: London, UK, 373–389.
4. Brundrett M, Bougher N, Dell B, Grove T, Malajczuk N . (1996) Working with Mycorrhizas in Forestry and Agriculture. ACIAR Monograph, Issue 32 Canberra, Australia.
5. Busby RR, Stromberger ME, Rodriguez G, Gebhart DL, Paschke MW . (2012). Arbuscular mycorrhizal fungal community differs between coexisting native shrub and introduced annual grass. Mycorrhiza 23: 129–141.