Changes in intestinal microbial flora during a 4-week period of Salmonella enterica serovar Enteritidis colonization in resistant mice (latent carrier animals) were evaluated using a culture independent method involving denaturing gradient gel electrophoresis. The contents of the ileocecal portion of the intestines produced 26 bands. Fifty-seven percent of the bands were expressed in more than ...

Immunization of nonpregnant adults could help prevent invasive group B Streptococcus (GBS) infections, but adult immune responses have not been investigated. We defined capsular polysaccharide (CPS) and pilus island (PI) surface antigen distribution and expression and immune responses to GBS infection in nonpregnant adults. Prospective surveillance from 7 hospitals in Houston, Texas, USA, ident...

A host suitability study of 32 plant species to Meloidogyne konaensis included 54 vegetable cultivars, 12 field crop cultivars, one Gardenia sp., and two weed species. Host suitability was classified according to a M. konaensis reproductive factor: final population density (Pf) (eggs + J2) / initial population density (Pi) (eggs). The number of eggs per gram dry root, and a galling index was al...

The activation status of the guanosine triphosphate (GTP)-binding protein Ras is dictated by the relative intensities of two opposing reactions: the formation of active Ras-GTP complexes, promoted by guanine-nucleotide exchange factors (GEFs), and their conversion to inactive Ras-GDP as a result of the deactivating action of GTPase-activating proteins (GAPs). The relevance of phosphoinositide 3...

The effect of 12-hydroxyeicosatetraenoic acid (12-HETE), an arachidonic acid metabolite of 12-lipoxygenase, to activate p21(Rac/Cdc42)-activated kinase (PAK1) was studied in a Chinese hamster ovary fibroblast cell line overexpressing the rat vascular type-1a angiotensin II receptor (CHO-AT(1a)). 12-HETE (0.1 microM) treatment induced a time-dependent activation of PAK1, with a peak effect at 10...

Abstract Using a recent verification of the Riemann hypothesis up to height $$3\cdot 10^{12}$$ 3 · 10 12 , we provide strong estimates on $$\pi (x)$$ π ( x <mml:m...

A method of selecting soybean cyst nematode (Heterodera glycines Ichinohe) on segregating soybean progeny was evaluated for developing a population capable of reproducing on PI 437654. Direct selection on PI 437654 was not possible, since no cysts developed on it. Cysts were selected for 12 nematode generations on F and F plants of Forrest x PI 437654. No cysts of the selected population were p...

conclusions our results indicated that the dissemination of pi-1 was widespread in s. pneumoniae isolates, although no pi-2 isolates were detected. furthermore, the frequency of rlra and rrgc of clinical isolates was significantly more than that of normal flora isolates. results the results confirmed the presence of rlra and rrgc genes in both clinical (n = 39) and normal flora (n = 26) isolate...