MF928

Joyce E. Jones, Using information in purchasing decisions, Kansas State University, May 1989

MF1051

Joyce E. Jones, Planning major purchases around seasonal sales, Kansas State University, September 1992

MF900

Funded in cooperation with the Kansas Extension Homemakers Council.Joyce E. Jones & Doris "Katey" Walker, Consumer choice, Kansas State University, September 1992

Microbial Iron Reduction by Enrichment Cultures Isolated from Estuarine Sediments

Microbial Fe reduction in acetate- and succinate-containing enrichment cultures initiated with an estuarine sediment inoculum was studied. Fe reduction was unaffected when SO42− reduction was inhibited by MoO42−, indicating that both processes could occur independently. Bacterially produced sulfide precipitated as FeS but was not completely responsible for Fe reduction. The separation of oxidized Fe particles from bacteria by dialysis tubing demonstrated that direct bacterial contact was necessary for Fe reduction. Fe reduction in cultures amended with NO3− was delayed until NO3− and NO2− were removed. However, bacterial attachment to oxidized Fe particles in NO3−-amended cultures occurred early during growth in a manner similar to NO3−-free cultures. During late stages of growth, bacteria not attached to Fe particles became pale and swollen, while attached cells remained bright blue when examined by 4′,6-diamidine-2-phenylindole epifluo-rescence microscopy. The presence of added oxidized Mn had no effect on Fe reduction. The results suggested that enzymatic Fe reduction was responsible for reducing Fe in these cultures even in the presence of sulfide and that cells incapable of Fe reduction became unhealthy when Fe(III) was the only available electron acceptor

L809

Wilma Schuh, Doris "Katey" Walker, and Joyce E. Jones, "Adjusting to financial problems," Kansas State University, March 1990

L812

Wilma Schuh, Doris "Katey" Walker, and Joyce E. Jones, Sharpening survival skills, Kansas State University, March 1990

L810

Wilma Schuh, Doris "Katey" Walker, and Joyce E. Jones, "Coping with stress," Kansas State University, March 1990

L811REVISED

Updated by Doris "Katey" Walker, Charles L. Griffin, and Sarah Krehbiel, School of Family Studies and Human Services.Wilma Schuh, Doris "Katey" Walker, and Joyce E. Jones, "Using community and family resources," Kansas State University, March 1990

Getting your records in order: Taking inventory; Valuable records

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Mutual funds

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311