Title : NSF 96-96 Dear Colleague Type : Letter NSF Org: BIO Date : June 3, 1996 File : nsf9696 May 30, 1996 Dear Colleague: The Directorate for Biological Sciences (BIO) at the National Science Foundation has a long history of supporting research in microbial biology. This letter is to inform the community of U. S. scientists that BIO seeks to encourage research on microorganisms, especially prokaryotes and filamentous fungi, that occupy diverse habitats. BIO recognizes that basic research studies on previously neglected or presently unknown microbes will lead to outcomes that exceed our ability to predict, and that some of these outcomes will have lasting impact on our society. The American Academy of Microbiology refers to microbial diversity as "The Unseen Natural Resource." Microbes are found everywhere, occupying habitats as diverse as farmland and marshland, plants and animals, deserts and oceans, volcanic lakes and the Antarctic. Although about 3100 species of bacteria are listed in Bergey's Manual, estimates place the actual number of extant species at 300,000 to 1 million. To date, the resources in the United States to study microbes have been overwhelmingly concentrated on microbes that negatively affect human, animal, and plant health, and on a small set of model system organisms. BIO regards the vast, understudied and largely unknown, diverse microbial biomass and interacting systems as a new world of opportunity to discover more about our "Unseen Natural Resource." BIO's goal in microbial biology is to increase knowledge of the biochemical, genetic, physiological and ecological properties and processes that enable diverse microbes to occupy and interact in natural and disturbed habitats. Proposal submissions are encouraged from individual investigators, as well as small groups of investigators focused on a single project. The scope of research encouraged will include but not be limited to: studies of microbial, metabolic and structural features that allow growth and survival in unusual, natural environments; studies of the mechanistic basis of interactions among microbes and of microbes with other cohabiting species; studies of genes and environmental factors that influence the frequency of genetic exchange between microorganisms in natural environments; studies of the diversity of microbial processes for anaerobic and aerobic flow of energy and cycling of nutrients in water/water and air/water interfaces of streams, the rhizosphere/phylosphere of plants, and the sediments of lakes and wetlands; development of instrumentation, chemical, biological and computational methods that enhance the study of microorganisms in their natural environment, and the management and analysis of data. Proposals may be submitted to all program areas (see target dates for applicable Division program ) within the Divisions of Molecular and Cellular Biosciences, Environmental Biology, Integrative Biology and Neurosciences, and Biological Instrumentation and Resources. Information about programs and NSF staff to contact is available on the Internet on the NSF BIO homepage (http://www.nsf.gov:80/bio/start.htm). Sincerely, Mary E. Clutter Assistant Director Biological Sciences