Theodor Otto Diener ||This biographical article needs additional
citations for verification. (February 2013)| Diener was born in
1921 in Zurich, Switzerland. He came to the United States in
1949. In 1971 he showed that the causative agent of Potato
spindle tuber disease was the potato spindle tuber viroid
(PSTV). PSTV is a 130,000 dalton viroid. Viroids are very little
single-stranded circular RNA that have no coat protein, and
which do not code for any protein. - USDA-ARS. 1989. Tracking
the Elusive Viroid |This article about an American botanist is a
stub. You can help Wikipedia by expanding it.|