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Title: Biological, Biochemical and Serological Studies on Hollyhock Leaf Crumple Virus (HLCrV): A Newly Discovered Whitefly Transmitted Geminivirus
Author(s): A. M. Abdel-Salam; Manal A. El-Shazly and J. C. Thouvenel
Source: Arab Journal of Biotechnology, 1998, Vol. 1, No. 1,, 41-58

Abstract: A newly discovered geminivirus [Family Geminiviridae, Genus “Subgroup III geminivirus”] which infects hollyhock (Althaea rosea) plants is reported in this study for the first time in Egypt. The name hollyhock leaf crumple virus (HLCrV) was given to this virus due to crumpling of the leaf blades of infected A. rosea. Additional symptoms included small vein thickening (SVT), epinasty, and cupping of leaves. HLCrV was transmitted by the silverleaf whitefly Bemisia argentifolii after acquisition and inoculation access periods of 30 and 15 min., respectively. Only one viruliferous whitefly insect could elicit disease syndrome. Host-range studies of HLCrV were restricted in the Malvaceae, viz. cheeseweed, cotton, and okra. HLCrV migrated in sucrose density gradients forming two peaks with Amax and Amin of 259, 240 nm (peak 1) and 258, 240 nm (peak 2), respectively...

Addresses: Plant Pathology Department, Faculty of Agriculture, Cairo University, Giza, Egypt. ORSTOM - Cairo, Faculty of Agriculture, Cairo University, Giza, Egypt...

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Country Code: EG