Ammonia-oxidizing bacteria: A model for molecular microbial ecology

Citation
Ga. Kowalchuk et Jr. Stephen, Ammonia-oxidizing bacteria: A model for molecular microbial ecology, ANN R MICRO, 55, 2001, pp. 485-529
Citations number
230
Language
INGLESE
art.tipo
Review
Categorie Soggetti
Microbiology
Journal title
ANNUAL REVIEW OF MICROBIOLOGY
ISSN journal
0066-4227 → ACNP
Volume
55
Year of publication
2001
Pages
485 - 529
Database
ISI
SICI code
0066-4227(2001)55:<485:ABAMFM>2.0.ZU;2-7
Abstract
The eutrophication of many ecosystems in recent decades has led to an incre ased interest in the ecology of nitrogen transformation. Chemolitho-autotro phic ammonia-oxidizing bacteria are responsible for the rate-limiting step of nitrification in a wide variety of environments, making them important i n the global cycling of nitrogen. These organisms are unique in their abili ty to use the conversion of ammonia to nitrite as their sole energy source. Because of the importance of this functional group of bacteria, understand ing of their ecology and physiology has become a subject of intense researc h over recent years. The monophyletic nature of these bacteria in terrestri al environments has facilitated molecular biological approaches in studying their ecology, and progress in this field has been rapid. The ammonia-oxid izing bacteria of the beta -subclass Proteobacteria have become somewhat of a model system within molecular microbial ecology, and this chapter review s recent progress in our knowledge of their distribution, diversity, and ec ology.