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Jones, Ronald D. and Mary A. Hood. 1980. Interaction Between an Ammonium-Oxidizer, Nitrosomonas Sp., and Two Heterotrophic Bacteria, Nocardia atlantica and Pseudomonas Sp.: A Note. EPA-600/J-80-391. Microb. Ecol. 6(3):271-275. (ERL,GB X248). (Avail. from NTIS, Springfield, VA: PB82-207713)

Closed culture experiments showed that the ability of an estuarine chemolithotrophic ammonium-oxidizer, Nitrosomonas sp., to convert ammonium to nitrite was substantially increased by as much as 150 percent and 50 percent when grown in the presence of two heterotrophs isolated from the same environment. The heterotrophs were identified as Nocardia atlantica and Pseudomonas sp. The growth of the heterotrophs was stimulated by as much as one order of magnitude in the presence of the ammonium-oxidizer.

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