Publications by authors named "Amber R Paulson"
Ticks in the family are important vectors of zoonoses, including Lyme disease (LD), which is caused by spirochete bacteria from the Borreliella (Borrelia) burgdorferi complex. The blacklegged tick (Ixodes scapularis) continues to expand across Canada, creating hot spots of elevated LD risk at the leading edge of its expanding range. Current efforts to understand the risk of pathogen transmission associated with I.
View Article and Find Full Text PDFSecretion of exoproteins is a key component of bacterial virulence, and is tightly regulated in response to environmental stimuli and host-dependent signals. The entomopathogenic bacterium Yersinia entomophaga MH96 produces a wide range of exoproteins including its main virulence factor, the 2.46 MDa insecticidal Yen-Tc toxin complex.
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- Researchers studied the entomopathogenic bacterium Yersinia entomophaga MH96 by analyzing its gene expression during different stages of infection in Galleria mellonella, a model insect.
- A total of 1,285 genes were found to be significantly upregulated, revealing specific genes that respond during the initial, septicemic, and pre-cadaveric stages of infection.
- Key genes involved in insecticidal action, such as components of toxin complexes and secretion system effectors, were highlighted, providing critical insights into the bacterium's pathobiology and potential for developing new insecticidal agents.
Bacterial associates of seed-parasitic wasps (Hymenoptera: Megastigmus).
BMC Microbiol
September 2014
Background: The success of herbivorous insects has been shaped largely by their association with microbes. Seed parasitism is an insect feeding strategy involving intimate contact and manipulation of a plant host. Little is known about the microbial associates of seed-parasitic insects.
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