@article{stowe_thompson_peng_su_blackledge_draughn_coe_johannes_lapham_mackenzie_et al._2015, title={Membrane-Permeabilizing Activity of Reverse-Amide 2-Aminoimidazole Antibiofilm Agents Against Acinetobacter baumannii}, volume={12}, ISSN={["1875-5704"]}, DOI={10.2174/1567201811666140924125740}, abstractNote={Acinetobacter baumannii has quickly become one of the most insidious and prevalent nosocomial infections. Recently, the reverse-amide class of 2-aminoimidazole compounds (RA-2AI) was found both to prevent A. baumannii biofilm formation and also to disperse preexisting formations, putatively through interactions with cytosolic response regulators. Here we focus on how this class of antibiofilm agent traverses cellular membranes. Following the discovery of dosage-dependent growth rate changes, the cellular effects of RA-2AI were investigated using a combination of molecular assays and microscopic techniques. It was found that RA-2AI exposure has measureable effects on the bacterial membranes, resulting in a period of increased permeability and visible structural aberrations. Based on these results, we propose a model that describes how the structure of RA-2AI allows it to insert itself into and disrupt the fluidity of the membrane, creating an opportunity for increased molecular permeability.}, number={2}, journal={CURRENT DRUG DELIVERY}, author={Stowe, Sean D. and Thompson, Richele J. and Peng, Lingling and Su, Zhaoming and Blackledge, Meghan S. and Draughn, G. Logan and Coe, William H. and Johannes, Eva and Lapham, Valerie K. and Mackenzie, John and et al.}, year={2015}, pages={223–230} } @article{marshall_hargraves_burkholder_parrow_elbraechter_allen_knowlton_rublee_hynes_egerton_et al._2006, title={Taxonomy of Pfiesteria (Dinophyceae)}, volume={5}, ISSN={["1878-1470"]}, DOI={10.1016/j.hal.2006.05.001}, abstractNote={The dinoflagellate species originally described as Pfiesteria shumwayae Glasgow et Burkholder, recently transferred to a new genus, Pseudopfiesteria Litaker et al., is reclassified into the redefined genus Pfiesteria Steidinger et Burkholder, as Pfiesteria shumwayae within the order Peridiniales. This change is based upon consideration of a compilation of previous and new morphological analyses and molecular phylogenetic analyses. Morphological analysis with scanning and transmission electron microscopy supports previous findings except in the sulcal area. In the cells examined, the sulcus is partly concealed by the peduncle cover plate (p.c.), which originates at the right side of the sulcus along the left side of the 6c and 5‴ plates. The fine structure of the p.c. appears similar to that of other thecal plates. The 1″ plate can also extend slightly over the sulcus. Transmission electron microscopy revealed that Pfiesteria shumwayae can have at least six sulcal plates; the number remains uncertain and may vary. The sulcal plates of this small, delicately thecate species have not been clearly discerned by scanning electron microscopy of membrane-stripped and/or suture-swollen cells. The Kofoidian thecal plate formula for the genus Pfiesteria is Po, cp, X, 4′, la, 5–6″, 6c, p.c., ?s, 5‴, 0p, 2‴′. The monophyletic grouping of “pfiesteria-like” taxa within the order Peridiniales, as well as the grouping of Pfiesteria piscicida and Pfiesteria shumwayae within the same genus, is also supported by the preponderance of previous molecular evidence, and by the phylogenetic trees contributed in the present analysis. Pfiesteria appears to be closely related to as-yet informally described cryptoperidiniopsoids and calcareous dinoflagellates such as Thoracosphaera; thus, the family classification requires revision that is beyond the scope of this study.}, number={5}, journal={HARMFUL ALGAE}, author={Marshall, Harold G. and Hargraves, Paul E. and Burkholder, JoAnn M. and Parrow, Matthew W. and Elbraechter, Malte and Allen, Elle H. and Knowlton, Valerie M. and Rublee, Parke A. and Hynes, Wayne L. and Egerton, Todd A. and et al.}, year={2006}, month={Oct}, pages={481–496} } @article{pourdeyhimi_fedorova_garcia_knowlton_oldham_2005, title={Sample preparation for textile nanofiber composites}, volume={13}, DOI={10.1017/s1551929500051476}, abstractNote={Abstract}, number={2}, journal={Microscopy Today}, author={POURDEYHIMI, BEHNAM and Fedorova, N. and Garcia, R. and Knowlton, V. and Oldham, C.}, year={2005}, pages={38–40} }