Diluted Peptone
Mostrando 13-16 de 16 artigos, teses e dissertações.
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13. Survival of Salmonellae on and in Tomato Plants from the Time of Inoculation at Flowering and Early Stages of Fruit Development through Fruit Ripening
The fate of salmonellae applied to tomato plants was investigated. Five Salmonella serotypes were used to inoculate tomato plants before and after fruits set, either by injecting stems with inoculum or brushing flowers with it. Ripe tomato fruits were subjected to microbiological analysis. Peptone wash water, homogenates of stem scar tissues, and homogenates
American Society for Microbiology.
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14. Properties and requirements for production of a macrophage product which suppresses steroid production by adrenocortical cells.
Lipopolysaccharide-treated murine peritoneal exudate macrophages (PEM) release a factor or factors into the supernatant that suppress adrenocorticotropic hormone-induced steroidogenesis in explanted rabbit adrenocortical cells (J. C. Mathison et al., J. Immunol. 130:2757-2762, 1983). To determine the requirements for suppression, PEM supernatants (30 microli
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15. Hexavalent chromium-resistant bacteria isolated from river sediments.
Hexavalent chromium [Cr(VI)] is a known carcinogen and mutagen; however, the actual mechanisms of Cr toxicity are unknown. Two approaches were used to isolate Cr(VI)-resistant bacteria from metal-contaminated river sediments. Diluted sediments were plated directly onto a peptone-yeast extract (PYE) medium containing 0 to 100 micrograms of Cr(VI) ml-1. Approx
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16. Modeling of 5′ Nuclease Real-Time Responses for Optimization of a High-Throughput Enrichment PCR Procedure for Salmonella enterica
The performance of a 5′ nuclease real-time PCR assay was studied to optimize an automated method of detection of preenriched Salmonella enterica cells in buffered peptone water (BPW). The concentrations and interactions of the PCR reagents were evaluated on the basis of two detection responses, the threshold cycle (CT) and the fluorescence intensity by a n
American Society for Microbiology.