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 Wilson, H. R. Articles by Tollin, P. Search for Related Content PubMed Articles by Wilson, H. R. Articles by Tollin, P. Agricola Articles by Wilson, H. R. Articles by Tollin, P.

Some Observations on the Structure of Potato Virus X

Carnegie Laboratory of Physics, University of Dundee, Dundee, Scotland

The flexible elongated plant virus, potato virus X, has been studied by a number of physical and physical-chemical methods. Here we wish to compare the results of these studies and to make some observations on the structure of the virus which these studies suggest.

X-ray diffraction studies of potato virus X were first made by Bernal & Fankuchen (1941), who obtained diffraction patterns suggesting a periodicity along the virus particle of 33 Å. Later X-ray studies (Tollin et al. 1967) showed that this periodicity varied from 33 to 36 Å depending on the amount of water in the specimen. A dry specimen of potato virus X with improved orientation has been obtained in an identical fashion to that for narcissus mosaic virus (Tollin, Wilson & Young, 1968). The X-ray diffraction pattern (Pl. 1) can be interpreted as being due to a helical arrangement of subunits with a pitch of 33 to 36 Å, depending on water content.

Received 30 December 1968; accepted 17 February 1969.