In situ localization of cacao swollen shoot virus in agroinfected Theobroma cacao

In situ localization of cacao swollen shoot virus in agroinfected Theobroma cacao Cacao swollen shoot virus (CSSV) is a small non-enveloped bacilliform virus with a double-stranded DNA genome. A very restricted host range and difficulties in transmitting the virus, either mechanically or via its natural vector, have hindered the study of cacao swollen shoot disease. As an alternative to the particle-bombardment method previously reported, we investigated another approach to infect Theobroma cacao . A greater-than-unit length copy (1.2) of the CSSV DNA genome was cloned into the Agrobacterium binary vector pBin19 and was transferred into young plants via Agrobacterium tumefaciens . Typical leaf symptoms and stem swelling were observed seven and eleven weeks post inoculation, respectively. Viral DNA, CSSV coat protein and virions were detected in leaves with symptoms. Agroinfected plants were used to study the in situ localization of CSSV and its histopathologic effects in planta. In both leaves and petioles, virions were only seen in the cytoplasm of phloem companion cells and of a few xylem parenchyma cells. Light microscopy showed that stem swelling results from a proliferation of the xylem, phloem and cortex cells. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

In situ localization of cacao swollen shoot virus in agroinfected Theobroma cacao

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Publisher
Springer-Verlag
Copyright
Copyright © Wien by 1999 Springer-Verlag/
Subject
Legacy
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s007050050502
Publisher site
See Article on Publisher Site

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