Publications by authors named "H Liesegang"
Article Synopsis
- - Bacillus thuringiensis (Bt) Cry proteins, like Cry14Ab, have been used in transgenic crops for insect pest control and now show promise against nematodes, particularly the soybean cyst nematode
- - Recent studies indicate that Cry14Ab effectively targets various gastrointestinal nematode parasites both in laboratory settings (in vitro) and in live animals (in vivo)
- - A related protein, Cry14Ac, was identified and shown to be effective against certain nematodes, demonstrating potential for further development as an anthelmintic treatment
A new strain, K08M4, was isolated from the broad-nosed pipefish in the Kiel Fjord. Infection experiments revealed that K08M4 was highly virulent for juvenile pipefish. Cells of strain K08M4 were Gram-stain-negative, curved rod-shaped and motile by means of a single polar flagellum.
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- Filamentous phages can enhance bacterial fitness with beneficial genes but also impose energetic costs that may lead to resistance evolution in bacteria.
- In an experiment with Vibrio alginolyticus, resistance evolved fastest in normal and fluctuating salinity conditions, while it slowed in low salinity.
- The study suggests that suboptimal environmental conditions prolong phage epidemics, raising concerns about the potential emergence of phage-born pathogens in future ocean environments.
Pathogens vary strikingly in their virulence and the selection they impose on their hosts. While the evolution of different virulence levels is well studied, the evolution of host resistance in response to different virulence levels is less understood and, at present, mainly based on observations and theoretical predictions with few experimental tests. Increased virulence can increase selection for host resistance evolution if the benefits of avoiding infection outweigh resistance costs.
View Article and Find Full Text PDFBiopesticide-based crop protection is constantly challenged by insect resistance. Thus, expansion of available biopesticides is crucial for sustainable agriculture. Although is the major agent for pesticide bioprotection, the number of bacteria species synthesizing proteins with biopesticidal potential is much higher.
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