Mark T. Anderson

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The acquisition and incorporation of genetic material between nonmating species, or horizontal gene transfer (HGT), has been frequently described for phylogenetically related organisms, but far less evidence exists for HGT between highly divergent organisms. Here we report the identification and characterization of a horizontally transferred fragment of the(More)
Niche-restricted pathogens are evolutionarily linked with the specific biological fluids that are encountered during infection. Neisseria gonorrhoeae causes the genital infection gonorrhea and is exposed to seminal fluid during sexual transmission. Treatment of N. gonorrhoeae with seminal plasma or purified semen proteins lactoferrin, serum albumin, and(More)
Neisseria gonorrhoeae is the causative agent of gonorrhea and an obligate pathogen of humans. The Opa proteins of these bacteria are known to mediate attachment and internalization by host cells, including neutrophils. The Opa protein repertoire of a typical N. gonorrhoeae isolate is encoded on ~11 genes distributed throughout the chromosome and is subject(More)
Observations of 51 years of continuous record at about 202 U.S. Geological Survey stream gages indicate that streamflow conditions are changing in the Missouri River Basin (MRB). Where trends are significant, they are generally upward in the eastern portions of the basin and downward in the western parts of the basin. Eighty-four streamflow stations out of(More)
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