Sophie Davison

Learn More
Bacillus anthracis, a gram-positive, spore-forming bacterium, is the etiological agent of anthrax. It belongs to the Bacillus cereus group, which also contains Bacillus cereus and Bacillus thuringiensis. Most B. anthracis strains are sensitive to phage gamma, but most B. cereus and B. thuringiensis strains are resistant to the lytic action of phage gamma.(More)
A map of the sites in the genome ofCostelytra zealandica iridescent virus (CzIV), using the restriction enzymesBamHI,KpnI, andPstI, showed the genome size to be 170.2 kbp in length. It was found that the genome was cyclically permuted and that 39% of the genome of CzIV contained repetitive sequence elements. The genome was found to hybridize with the genome(More)
Bacterial surface proteins are key players in host-symbiont or host-pathogen interactions. How these proteins are targeted and displayed at the cell surface are challenging issues of both fundamental and clinical relevance. While surface proteins of Gram-negative bacteria are assembled in the outer membrane, Gram-positive bacteria predominantly utilize(More)
In Arabidopsis, the rhizobacterial strain Pseudomonas fluorescens WCS417r triggers an induced systemic resistance (ISR) response that is effective against different types of pathogens. The ISR signaling pathway functions independent of salicylic acid, but requires responsiveness to jasmonate (JA) and ethylene. Using the genetic variability of ISR(More)
LPXTG proteins, present in most if not all Gram-positive bacteria, are known to be anchored by sortases to the bacterial peptidoglycan. More than one sortase gene is often encoded in a bacterial species, and each sortase is supposed to specifically anchor given LPXTG proteins, depending of the sequence of the C-terminal cell wall sorting signal (cwss),(More)
The iridoviruses fromWiseana cervinata (WIV, type 9),Costelytra zealandica (CzIV, type 16) andChilo suppressalis (CIV, type 6) were compared by SDS-PAGE and Western protein blotting for antigenic determinants. The major capsid proteins were isolated and oligonucleotide probes were synthesized from the partial amino acid sequences. The DNA regions coding for(More)
To characterize further the nature of the defects underlying the differential radiosensitivities of the Chinese hamster ovary cell lines NM2, EM9, and UV41, we compared the abilities of anoxia and of the thiol WR-1065 to protect these mutants and their parent cell line, AA8, from the lethal effects of gamma-radiation. Wide differences in oxygen enhancement(More)
The Bacillus cereus group of bacteria is a group of closely related species that are of medical and economic relevance, including B. anthracis, B. cereus, and B. thuringiensis. Bacteria from the Bacillus cereus group encode three large, highly conserved genes of unknown function (named crdA, crdB, and crdC) that are composed of 16 to 35 copies of a repeated(More)
S OF PRESENTATIONS ON PLANT PROTECTION ISSUES AT THE XTH INTERNATIONAL CONGRESS OF VIROLOGY August 11-16, 1996 Binyanei haOoma, Jerusalem, Israel Part2* Plenary Lectures X" ANTIVIRAL AGENTS FROM PLANT SOURCES (PLANT EXTRACTS; PROTEINS) (continued) Eff i cacy o f T r a d i t i o n a l H e r b a l Medic ines o n H e r p e s V i r u s In fec t ion in vitro a n(More)
  • 1