Ice nucleation temperatures of individual leaves were determined by a tube nucleation test. With this assay, a direct quantitative relationship was obtained between the temperatures at which ice nucleation occurred on individual oat (Avena sativa L.) leaves and the population sizes of ice nucleation active (INA) bacteria present on those leaves. In the absence of INA bacteria, nucleation of sup...

OBJECTIVE To report an uncommon incidence of sporadic bloodstream infection (BSI) caused by Pantoea agglomerans in preterm neonates. CASE PRESENTATION AND INTERVENTION Fives cases of nosocomial BSI with P. agglomerans in preterm neonates (weight 7 days of age). Lethargy, skin mo...

Bacteria of the genus Arthrobacter are common inhabitants of the soil environment, but can also be recovered from leaf surfaces (the phyllosphere). Using enrichment cultures on 4-chlorophenol, we succeeded in specifically isolating Arthrobacter bacteria from ground cover vegetation in an apple orchard. Based on 16S rRNA gene sequencing, the isolates were found to belong to at least three differ...

BACKGROUND Lipopolysaccharide derived from Pantoea agglomerans (LPSp) mainly consists of two aggregates, the high-molecular aggregate (HMM-LPSp) and the low-molecular aggregate (LMM-LPSp). The structural differences between HMM-LPSp and LMM-LPSp seem to depend on the length of the O-antigen polysaccharide because the lipid A regions of the two fractions are quite similar. In this study, we exam...

Introduction Pantoea agglomerans, primarily an environmental and agricultural organism has been reported as both commensal and pathogen of humans. We present two case reports of P. agglomerans infections in children that involved the meninges and bloodstream. Case Presentations A 6-month-old female baby, diagnosed as congenital hydrocephalus secondary to aqueduct stenosis with ventriculoperit...

Surface-enhanced Raman scattering (SERS) provides rapid fingerprinting of biomaterial in a non-destructive manner. The adsorption of colloidal silver to biological material suppresses native biofluorescence while increasing the normal Raman signal via the surfaceenhanced Raman effect. This work validates the applicability of qualitative SER spectroscopy, utilizing principal component analysis (...

Construction of a genomic DNA library from Pantoea agglomerans strain CU0119 and screening against the plant pathogen Erwinia amylovora yielded a new family of antibiotics, dapdiamides A-E (1-5). The structures were established through 2D-NMR experiments and mass spectrometry, as well as the synthesis of dapdiamide A (1). Transposon mutagenesis of the active cosmid allowed identification of the...

Human blood components have been shown to enhance biofilm formation by gram-positive bacteria. We investigated the effect of human blood on biofilm formation on the inner lumen of needleless central venous catheter connectors by several gram-negative bacteria, specifically Enterobacter cloacae, Pseudomonas aeruginosa, and Pantoea agglomerans. Results suggest that a conditioning film of blood co...