ULTRASTRUCTURE OF PARENCHYMAL LEAF CELLS OF DIFFERENT SOYBEAN VARIETIES SYSTEMICALLY INFECTED WITH SOYBEAN
MOSAIC VIRUS
A. V. Reunov,1 L. A. Lapshina,1 V. P. Nagorskaya,1
A. M. Polyakova,2 S. N. Lega 2, *
1 Pacific Institute of Bioorganic Chemistry, and
2 Institute of Biology and Soil Science, Far East Branch of RAS, Vladivostok;
* e-mail: piboc@stl.ru
A comparative study was made of the ultrastructure of parenchyma leaf cells of different soybean varieties
systemically infected with soybean mosaic virus (SMV). It has been shown that virus accumulation and formation of
virus-specific cylindrical inclusions (CIs) occur in the infected cells, in addition to intracellular changes
showing stimulation of lytic processes, such as activation of smooth endoplasmic reticulum and Golgi apparatus,
formation of cytoplasmic vacuoles, cytosegresomes, myelin-like bodies, different disturbances in the structure of
cell organelles. Many infected cells demonstrated microbodies with invagination in which cylindrical inclusions
were often found showing signs of destruction. It is suggested that such microbodies possess autophagic activity
towards CIs. A possible relation of the observed virus-induced ultrastructural cell changes with the degree of SMV
affection of investigated varieties is discussed.
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