1. Anderson JA, Buchanan DW, Stall RE, Hall CB (1982) Frost injury of tender plants increased by Pseudomonas syringae van Hall. J Am Soc Hortic Sci 107:123–125
2. Andrews JH, Harris RF (2003) The ecology and biogeography of microorganisms on plant surfaces. Annu Rev Phytopathol 38:145–180
3. Arp DJ (2000) The nitrogen cycle. In: Triplett EW (ed) Prokaryotic nitrogen fixation. Horizon Scientific Press, Wymondham, pp 1–14
4. Atlas RM, Bartha R (1998) Microbial ecology: fundamentals and applications. Addison-Wesley Longman, Menlo Park
5. Babu-Khan S, Yeo C, Martin WL, Duron MR, Rogers R, Goldstein A (1995) Cloning of a mineral phosphate-solubilizing gene from Pseudomonas cepacia. Appl Environ Microbiol 61:972–978