Radiotracer and Inhibitor Studies of Amino Acid Cycling in  Anoxic Marine Sediments
{'Code': '06040302', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'OCE', 'LongName': 'Division Of Ocean Sciences'}}
{'SignBlockName': 'Nicholas Anderson', 'PO_EMAI': 'nanderso@nsf.gov', 'PO_PHON': '7032924715'}
The goal of this project is to further characterize the                         biogeochemical processes utilizing dissolved free amino acids                   in anoxic marine sediments.  This work is a renewal of a                        previous   grant and series of experiments utilizing 14C-                       labelled amino acids and inhibitors of specific microbial                       processes, focussing on the relationship between sulfate                        reduction and fermentation reactions in consuming amino acids.                  A major emphasis of this work will be to quantify the specific                  intermediates produced from the metabolism of amino acids in                    anoxic marine sediments (e.g., acetate vs. propionate as                        opposed to simply total volatile fatty acids).  For comparative                 purposes experiments will be carried out using sediment                         collected from several locations.  Previous studies of glutamic                 acid and alanine utilization in these sediments will be                         expanded to include analogous studies involving glycine and                     lysine.  These amino acids have been chosen for study because                   they are the dominant amino acids.  The results of this study                   have the potential of increasing our knowledge of the controls                  on amino acid digenesis in anoxic marine sediments.
{'FirstName': 'David', 'LastName': 'Burdige', 'PI_MID_INIT': 'J', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'David J Burdige', 'EmailAddress': 'dburdige@odu.edu', 'NSF_ID': '000170240', 'StartDate': '12/15/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Old Dominion University', 'CityName': 'NORFOLK', 'ZipCode': '235290001', 'PhoneNumber': '7576833159', 'StreetAddress': 'HAMPTON BLVD', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Virginia', 'StateCode': 'VA', 'CONGRESSDISTRICT': '03', 'CONGRESS_DISTRICT_ORG': 'VA03', 'ORG_UEI_NUM': 'ELA9KB9GJCN8', 'ORG_LGL_BUS_NAME': 'OLD DOMINION UNIVERSITY', 'ORG_PRNT_UEI_NUM': 'DSLXBD7UWRV6'}
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{'Code': '167000', 'Text': 'Chemical Oceanography'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8817409.xml'}