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15 results on '"Bech, Tina B."'

1. Environmental Hot Spots and Resistance-Associated Application Practices for Azole-Resistant Aspergillus fumigatus, Denmark, 2020-2023

Author

Arendrup, Maiken Cavling, Hare, Rasmus Kroger, Jorgensen, Karin Meinike, Bollmann, Ulla E., Bech, Tina B., Hansen, Cecilie Cetti, Heick, Thies M., and Jorgensen, Lise Nistrup

Subjects
Fungal diseases of plants -- Causes of -- Control -- Statistics, Drug resistance in microorganisms -- Statistics -- Risk factors -- Environmental aspects, Fungicides -- Physiological aspects, Aspergillus -- Identification and classification -- Environmental aspects -- Statistics, Azoles (Class of compounds) -- Physiological aspects
Abstract

Azole resistance in Aspergillus fumigatus fungi has increased during the past 25 years. Increasing evidence documents that selection of azole-resistant A. fumigatus (ARAf) takes place in the environment (1,2). Investigations [...]

Published
2024
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6. Transport and distribution of Salmonella enterica serovar typhimurium in loamy and sandy soil monoliths with applied liquid manure

Author

Bech, Tina B., Johnsen, Kaare, Dalsgaard, Anders, Laegdsmand, Mette, Jacobsen, Ole Horbye, and Jacobsen, Carsten S.

Subjects
Polymerase chain reaction -- Usage, Salmonella enteritidis -- Genetic aspects, Salmonella enteritidis -- Environmental aspects, Soil microbiology -- Research, Biological sciences
Abstract

A large-scale experiment is performed by using intact soil monoliths in order to compare the leaching of Salmonella serovar Typhimurium in a loamy soil with less-absorptive properties and macropores and a coarse sandy soil with less absorptive properties and less preferential flow. Bacterial enumerations are validated based on cultures on agar plates with real-time PCR to determine if a proportion of the test strain entered a non-culturable state.

Published
2010

14. Adhesion of Escherichia coliand Salmonella entericato Soil in Runoff as Influenced by Polyacrylamide

Author

Bech, Tina B., Sbodio, Adrian, Jacobsen, Carsten S., and Suslow, Trevor

Abstract

Polyacrylamide (PAM) is used in agriculture to reduce soil erosion and has been reported to reduce turbidity, nutrients, and pollutants in surface runoff water. The objective of this work was to determine the effect of PAM on the concentration of enteric bacteria in surface runoff by comparing four enteric bacteria representing phenotypically different motility and hydrophobicity from three soils. Results demonstrated that bacterial surface runoff was differentially influenced by the PAM treatment. Polyacrylamide treatment increased surface runoff for adhered and planktonic cells from a clay soil; significantly decreased surface runoff of adhered bacteria, while no difference was observed for planktonic bacteria from the sandy loam; and significantly decreased the surface runoff of planktonic cells, while no difference was observed for adhered bacteria from the clay loam. Comparing strains from a final water sample collected after 48 h showed a greater loss of Escherichia coliwhile Salmonella entericaserovar Poona was almost not detected. Thus, (i) the PAM efficiency in reducing the concentration of enteric bacteria in surface runoff was influenced by soil type and (ii) variation in the loss of enteric bacteria highlights the importance of strain‐specific properties that may not be captured with general fecal indicator bacteria.

Published
2014
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15. Adhesion of and to soil in runoff as influenced by polyacrylamide.

Author

Bech TB, Sbodio A, Jacobsen CS, and Suslow T

Abstract

Polyacrylamide (PAM) is used in agriculture to reduce soil erosion and has been reported to reduce turbidity, nutrients, and pollutants in surface runoff water. The objective of this work was to determine the effect of PAM on the concentration of enteric bacteria in surface runoff by comparing four enteric bacteria representing phenotypically different motility and hydrophobicity from three soils. Results demonstrated that bacterial surface runoff was differentially influenced by the PAM treatment. Polyacrylamide treatment increased surface runoff for adhered and planktonic cells from a clay soil; significantly decreased surface runoff of adhered bacteria, while no difference was observed for planktonic bacteria from the sandy loam; and significantly decreased the surface runoff of planktonic cells, while no difference was observed for adhered bacteria from the clay loam. Comparing strains from a final water sample collected after 48 h showed a greater loss of while serovar Poona was almost not detected. Thus, (i) the PAM efficiency in reducing the concentration of enteric bacteria in surface runoff was influenced by soil type and (ii) variation in the loss of enteric bacteria highlights the importance of strain-specific properties that may not be captured with general fecal indicator bacteria., (Copyright © by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.)

Published
2014
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