Dissimilatory iron reduction and odor indicator abatement by biofilm communities in swine manure microcosms

Article Abstract:

A novel approach to swine waste odor reduction is investigated in the form of the addition of FeCl3, a commonly used coagulant in municipal wastewater treatment, to stimulate degradation of odorous compounds by dissimilatory iron-reducing bacteria (DIRB). DNA sequences obtained from rRNA gene amplicons of bacterial communities in FeCl3-treated microcosms were closely related to Desulfitobacterium spp., which are known representatives of DIRB.

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Identification of specific in vivo-induced (ivi) genes in Yersinia ruckeri and analysis of ruckerbactin, a catecholate siderphore iron acquisition system

Article Abstract:

The optimization of an in vivo selection system for a fish-pathogenic species as well as the identification and sequencing of 14 ivi (in vivo-induced) genetic loci and the analysis of those related to iron acquisition are reported. The tests confirm the production and utilization of a virulence-involved catecholate siderophore by Yersinia ruckeri.

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Phylum- and class specific PCR primers for general microbial community analysis

Article Abstract:

A study was conducted to develop several primer sets targeting commonly occurring and important groups. The results revealed that eighty-five to 100% of the sequences obtained from clone libraries were found to be placed with the groups indented as targets, demonstrating the specificity of the primers under field conditions.

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