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 Similar articles in PubMed 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 Appiano, A. Articles by Pennazio, S. Search for Related Content PubMed PubMed Citation Articles by Appiano, A. Articles by Pennazio, S. Agricola Articles by Appiano, A. Articles by Pennazio, S.

Electron Microscopy of Potato Meristem Tips Infected with Potato Virus X

Laboratorio di Fitovirologia applicata del C.N.R., 10135-Torino Via Onorato Vigliani, 104 Italy

The irregular distribution of virus particles in systemically infected plants is well known for some viruses. Limasset & Cornuet (1949) showed that tobacco mosaic virus (TMV) concentrations increase as a function of the distance from the shoot apex, and Solberg & Bald (1963) demonstrated a downward-increasing concentration gradient from the apical meristem for TMV in systemically infected Nicotiana glauca Grah.

Walkey & Webb (1968, 1970) first showed virus particles in apical meristems of Nicotiana rustica L. systemically infected with NEPO viruses, by using electron microscopy. Using the same technique, Roberts, Christie & Archer (1970) also found tobacco ringspot virus particles in apical initials of tobacco shoots.

The presence of virus particles in potato (Solanum tuberosum L.) apical meristems has not yet been revealed by electron microscopy (Kassanis, 1965; Morel, Martin & Muller, 1968). The present paper offers experimental evidence of their presence.

Received 4 November 1971; accepted 6 December 1971.