Viroids in Agriculture

  • T. O. Diener
Part of the NATO Advanced Study Institutes Series book series (NSSA, volume 12)


The term “viroid” has been introduced to denote a recently recognized class of subviral plant pathogens (7). Presently known viroids consist solely of a short strand of RNA with a molecular weight of about 75,000 to 125,000 daltons. Introduction of this low-molecular-weight RNA into susceptible hosts leads to replication of the RNA and, in some hosts, to disease.


Helper Virus Potato Spindle Tuber Viroid Infected Tomato Leaf Strip Rice Dwarf Virus 


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Copyright information

© Plenum Press, New York 1977

Authors and Affiliations

  • T. O. Diener
    • 1
  1. 1.Plant Virology Laboratory, Plant Protection Institute Agricultural Research ServiceU.S. Department of AgricultureBeltsvilleUSA

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