Applied and Environmental Microbiology (AEM) publishes study results that make significant contributions to applied microbial research, basic microbial ecology research, and genetic and molecular investigations of microbial topics of practical value. Twice monthly, Print ISSN: 0099-2240. Online ISSN: 1098-5336. AEM has an Impact Factor of 3.778 according to the 2010 Journal Citation Reports®. It is the #1 cited journal in Microbiology. Indexed/Abstracted in: Agricola, Biological Abstracts, BIOSIS Previews, CAB Abstracts, Cambridge Scientific Abstracts, Chemical Abstracts Service, Current Contents, EMBASE, Food Science and Technology Abstracts, Illustrata, MEDLINE, Science Citation Index Expanded, Summon, and more. Applied and Environmental Microbiology (AEM) publishes study results that make significant contributions to applied microbial research, basic microbial ecology research