• Publications
  • Influence
Biology and genetics of a laboratory strain of the tobacco budworm, Heliothis virescens (Lepidoptera: Noctuidae), highly resistant to spinosad
Reciprocal single pair matings between the resistant and the parental strain and backcrosses of F 1 (R×S) females with resistant males indicated that a non-sex linked, (partially) recessive single gene was responsible for spinosad resistance. Expand
Chironomus tentans epithelial cell lines sensitive to ecdysteroids, juvenile hormone, insulin and heat shock.
  • C. Wyss
  • Biology, Medicine
  • Experimental cell research
  • 1 June 1982
A technique for the isolation of Chironomus tentans embryo cells and a medium for their in vitro cultivation are described and heat-shocked epithelial cell lines stop the synthesis of most proteins and initiate the production of about ten new proteins. Expand
Dependence of proliferation of Bacteroides forsythus on exogenous N-acetylmuramic acid
  • C. Wyss
  • Medicine, Biology
  • Infection and immunity
  • 1 June 1989
Bacteroides forsythus is the first wild-type or mutant bacterium found to require exogenous N-acetylmuramic acid for proliferation and maintenance of cell shape. This implies so far unknown pathwaysExpand
Characterization of the sensitizing potential of chemicals by in vitro analysis of dendritic cell activation and skin penetration.
In vitro analysis of DC activation capability of the two selected chemicals demonstrates that prediction of skin sensitization potential is possible provided that skin penetration data indicate sufficient bioavailability of the test compound. Expand
Treponema maltophilum sp. nov., a small oral spirochete isolated from human periodontal lesions.
The strains included in the new species on the basis of their 16S rRNA sequences are heterogeneous with respect to their alpha-fucosidase, and beta-glucuronidase activities, their dependence on N-acetylglucosamine, and their antigens as detected with patient antibodies. Expand
Investigations on a Swiss area highly endemic for Echinococcus multilocularis.
Anecdotal information suggested that a focus of hyperendemicity may be present in a small area of the Canton of Fribourg in Switzerland. Therefore, the prevalence of E. multilocularis was assessedExpand
Treponema putidum sp. nov., a medium-sized proteolytic spirochaete isolated from lesions of human periodontitis and acute necrotizing ulcerative gingivitis.
A novel spirochaete has a 2 : 4 : 2 arrangement of the periplasmic flagella, similar to T. denticola, and the status of a novel species is supported by the 16S rRNA gene sequence. Expand
Treponema parvum sp. nov., a small, glucoronic or galacturonic acid-dependent oral spirochaete from lesions of human periodontitis and acute necrotizing ulcerative gingivitis.
14 strains of T. pectinovorum and 'Smibert-2' (four isolates with beta-glucuronidase activity) could each be subdivided into two serotypes based on immunoblot reactivity with two mAbs, and representatives of the two groups showed a 1:2:1 periplasmic flagellar arrangement. Expand
Two Paralogous Families of a Two-Gene Subtilisin Operon Are Widely Distributed in Oral Treponemes
It is demonstrated that the subtilisin paralogs comprising a two-gene operon are widely distributed among treponemes and represent a new subgroup within the subtILisin family of proteases and are the only subtilisi lipoprotein family. Expand
Involvement of Guggenheimella bovis in digital dermatitis lesions of dairy cows.
G. bovis proved to be tissue invasive forming characteristic spherical microcolonies not only within the bacterial biofilm but also in seemingly unaffected parts of the tissue not yet reached by the advancing bacterial front. Expand