Rashed,, M., Kamhawy, M., Abo-Rehab, M. (2006). HISTOPATHOLOGICAL AND CONTROL OF GRAPEVINE DEAD-ARM DISEASE. Journal of Plant Production, 31(5), 2815-2826. doi: 10.21608/jpp.2006.235977
M. F. Rashed,; M. A. M. Kamhawy; M. Abo-Rehab. "HISTOPATHOLOGICAL AND CONTROL OF GRAPEVINE DEAD-ARM DISEASE". Journal of Plant Production, 31, 5, 2006, 2815-2826. doi: 10.21608/jpp.2006.235977
Rashed,, M., Kamhawy, M., Abo-Rehab, M. (2006). 'HISTOPATHOLOGICAL AND CONTROL OF GRAPEVINE DEAD-ARM DISEASE', Journal of Plant Production, 31(5), pp. 2815-2826. doi: 10.21608/jpp.2006.235977
Rashed,, M., Kamhawy, M., Abo-Rehab, M. HISTOPATHOLOGICAL AND CONTROL OF GRAPEVINE DEAD-ARM DISEASE. Journal of Plant Production, 2006; 31(5): 2815-2826. doi: 10.21608/jpp.2006.235977
HISTOPATHOLOGICAL AND CONTROL OF GRAPEVINE DEAD-ARM DISEASE
Fruit and Woody trees diseases Res. Dept., Plant Pathol. Res. Inst., Agric. Res. Cent, Giza, Egypt
Abstract
Light microscope used in histopathological investigation of Phomopsis
viticola Sacc. on artificially inoculated grapevine shoots cv. Thompson seedless
(highly susceptible) revealed the investigated sections immediately after inoculation,
exhibited similar structure in both inoculated and non-inoculated shoots. Seven days
after inoculation, Phomopsis vitico/a induced disorganized epidermal and cortical
cells with a dark brown color. Fungal hyphae were clearly noticed 14 days after
inoculation in both xylem parenchyma and xylem vessels causing necrosis in this
tissues. Not only the pathogenic fungus caused necrosis in xylem parenchyma and
xylem vessels but also colonized the tissues with their hyphae and dark inclusion
bodies as well as abundant production of tylosis were clearly noticed. Twenty one
days after inoculation, all tested shoot tissues were colonized with fungus hyphae
causing completely break down.
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