|Authors: ||J. Polák, M. Jokeš|
The infectious agent of strawberry mottle disease occurs at the highest concentration in young immature apical leaves of Chenopodium quinoa plants 10 days after inoculation.
Such systemically infected shoots showing symptoms of mosaic and mottling were used to prepare ultrathin sections for electron microscopy.
Small inclusions of irregular shape, containing very small isometric virus-like particles c. 12–13 nm in diameter, were observed in the cytoplasm of leaf parenchyma.
Such particles, arranged in paracrystalline arrays, were also found in some plastids.
No such paracrystalline inclusions were found in preparations from healthy plants of C. quinoa.
Download Adobe Acrobat Reader (free software to read PDF files)
URL www.actahort.org Hosted by KU Leuven