HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Bamford, D. H. Articles by Lounatmaa, K. Search for Related Content PubMed Articles by Bamford, D. H. Articles by Lounatmaa, K. Agricola Articles by Bamford, D. H. Articles by Lounatmaa, K.

Freeze-fracturing of Pseudomonas phaseolicola Infected by the Lipid-containing Bacteriophage 6

Department of Genetics, University of Helsinki, P. Rautatiekatu 13, SF-00100 Helsinki 10, Finland

K. Lounatmaa

Department of Electron Microscopy, University of Helsinki, Malminkatu 20, SF-00100 Helsinki 10, Finland

The freeze-fracturing of the lipid-containing bacteriophage 6 shows the virus membrane to have structural asymmetry with smooth convex and rough concave fracture faces. The host, Pseudomonas phaseolicola, shows the four typical fracture faces of the Gram-negative cell envelope. During the infection of P. phaseolicola by 6 the virus membrane and the bacterial outer membrane fuse to form a bulge. The nucleocapsid obviously also penetrates the cytoplasmic membrane and is seen inside the cell shortly after infection. The outer membrane of the host undulates and after infection small membrane vesicles are formed apparently from the outer leaflet of the outer membrane.

Received 28 July 1977; accepted 11 November 1977.