Fungal And Bacterial Contamination
Mostrando 13-20 de 20 artigos, teses e dissertações.
-
13. Evaluation of Microbiological Test Kits for Hydrocarbon Fuel Systems
Commercially available kits were tested for their ability to detect bacterial and fungal contamination in hydrocarbon fuel systems. The handling ease of the kits was evaluated, and their sensitivity was compared with that of conventional methods. Most kits in both laboratory and field studies compared well with laboratory methods and were sufficiently sensit
-
14. Acanthamoeba, bacterial, and fungal contamination of contact lens storage cases.
BACKGROUND--Microbial corneal infection is the most serious complication of contact lens wear. Contact lens cases are a recognised potential source of pathogens associated with corneal ulcers. METHODS--This survey established the incidence of protozoal, bacterial, and fungal contact lens case contamination in 101 asymptomatic daily wear cosmetic contact lens
-
15. Vertical Transmission of Endobacteria in the Arbuscular Mycorrhizal Fungus Gigaspora margarita through Generation of Vegetative Spores
Arbuscular mycorrhizal (AM) fungi living in symbiotic association with the roots of vascular plants have also been shown to host endocellular rod-shaped bacteria. Based on their ribosomal sequences, these endobacteria have recently been identified as a new taxon, Candidatus Glomeribacter gigasporarum. In order to investigate the cytoplasmic stability of the
American Society for Microbiology.
-
16. Bronchoscopic Diagnosis of Pulmonary Infections—Comparison of Protected-Specimen Brush and Cytology Brush With Lung Aspirates
In a recent study the use of a new plugged double-lumen protected-specimen brush with the flexible fiberoptic bronchoscope was advocated to isolate pathogens in lower respiratory tract infections while avoiding upper respiratory tract contamination. To compare the efficacy of this brush and a standard single-lumen cytology brush in identifying the etiologic
-
17. An Improved Method for the Isolation of Spinach Chloroplast Envelope Membranes
A three-phase, discontinuous sucrose gradient yielded two distinct fractions of envelope membranes from spinach (Spinacia oleracea L.) chloroplasts. Their buoyant densities were 1.08 g cm−3 and 1.11 g cm−3. Electron micrographs showed the lighter and heavier fractions to consist primarily of single and double membranes, respectively. The milligrams of li
-
18. Phospholipid Fatty Acid Composition, Biomass, and Activity of Microbial Communities from Two Soil Types Experimentally Exposed to Different Heavy Metals
The phospholipid fatty acid (PLFA) pattern was analyzed in a forest humus and in an arable soil experimentally polluted with Cd, Cu, Ni, Pb, or Zn at different concentrations. In both soil types, there were gradual changes in the PLFA patterns for the different levels of metal contamination. The changes in the forest soil were similar irrespective of which m
-
19. Microbial Quorum-Sensing Molecules Induce Acrosome Loss and Cell Death in Human Spermatozoa▿
Infertility in men and women is frequently associated with genital contamination by various commensal or uropathogenic microbes. Since many microorganisms are known to release quorum-sensing signals in substantial amounts, we raised the question whether such molecules can directly affect human spermatozoa. Here we show that farnesol and 3-oxododecanoyl-l-hom
American Society for Microbiology (ASM).
-
20. Detection of Aspergillus fumigatus by polymerase chain reaction.
Aspergillus fumigatus is an opportunistic nosocomial pathogen causing an often fatal pneumonia, invasive aspergillosis (IA), in immunosuppressed patients. Oligonucleotide primers were used to amplify a 401-bp fragment spanning the 26S/intergenic spacer region of the rDNA complex of A. fumigatus by the polymerase chain reaction (PCR). The primers were highly