Serological Comparison of Antigens Related to Local Virus and Bacterial Infections and Aspecific Stresses in Tobacco Leaves

S. El‐Kady, R. Gáborjányi, Z. Király

Research output: Contribution to journalArticle

Abstract

Two “new” precipitin bands (antigens) detected by the immunodiffusion test were demon strated in leaf extracts of tobacco inoculated with tobacco mosaic virus (TMV), Pseudomonas tabaci or treated with mercuric chloride, sodium azide or sodium hypochlorite. One of the precipitin bands was stronger, than the other, These antigens were also detected in the upper, non‐infected leaves of tobacco plants when the lower leaves were locally stressed (necrotized) either by TMV or by chemical injury. The “new” antigens formed in the upper leaves were detected even if the TMV‐inoculated lower leaves were removed one day after inoculation. The “new” antigens were identical both in the lower and upper leaves and their induction was independent from the stress whether pathogenic or chemical. A coincidence exists between the appearance of “new” antigens and acquired resistance, but this does not mean necessarily a cause‐and‐effect relationship between the two phenomena. Our experiments indicate that the induction of the synthesis of “new” stress proteins in tobacco is aspecific and the proteins formed are related to the aspecific stress itself rather than to pathogenesis.

Original languageEnglish
Pages (from-to)69-78
Number of pages10
JournalJournal of Phytopathology
Volume126
Issue number1
DOIs
Publication statusPublished - Jan 1 1989

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Genetics
  • Plant Science

Fingerprint Dive into the research topics of 'Serological Comparison of Antigens Related to Local Virus and Bacterial Infections and Aspecific Stresses in Tobacco Leaves'. Together they form a unique fingerprint.

  • Cite this