Abnormal etioplast development in barley seedlings infected with BSMV by seed transmission

Anett Harsányi, Béla Böddi, Károly Bóka, Asztéria Almási, Richard Gáborjányi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The effect of barley stripe mosaic hordeivirus (BSMV) was studied on the ultrastructure of etioplasts, protochlorophyllide forms and the greening process of barley (Hordeum vulgare cv. Pannónia) plants infected by seed transmission. The leaves of 7- to 11-day-old etiolated seedlings were examined by transmission electron microscopy, fluorescence and absorption spectroscopy. The etioplasts of infected seedlings contained smaller prolamellar bodies with less regular membrane structure, while prothylakoid content was higher than in the control. The protochlorophyllide content of virus-infected seedlings was reduced to 74% of the control. In the 77 K fluorescence spectra the relative amount of 655 nm emitting photoactive protochlorophyllide form decreased, and the amount of the 645 and 633 nm emitting forms increased in the infected leaves. A characteristic effect was observed in the process of the Shibata-shift: 40 min delay was observed in the infected leaves. The results of this work proved that BSMV infection delays or inhibits plastid development and the formation of photosynthetic apparatus.

Original languageEnglish
Pages (from-to)149-155
Number of pages7
JournalPhysiologia Plantarum
Volume114
Issue number1
DOIs
Publication statusPublished - May 30 2002

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science
  • Cell Biology

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