| Full text | |
| Author(s): |
Renata Takassugui Gomes
[1]
;
Elliot Watanabe Kitajima
[2]
;
Francisco André Osamu Tanaka
[3]
;
João Paulo Rodrigues Marques
[4]
;
Beatriz Appezzato-da-Glória
[5]
Total Authors: 5
|
| Affiliation: | [1] Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
[2] Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
[3] Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
[4] Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
[5] Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Summa Phytopathologica; v. 36, n. 4, p. 291-297, 2010-12-00. |
| Abstract | |
The botanical genus Clerodendrum belongs to the family Lamiaceae and includes several ornamental species. Necrotic and chlorotic spots on leaves of bleeding heart were observed for the first time in a residential garden from Piracicaba Municipality, São Paulo State, Brazil, associated with an infestation by the flat mite Brevipalpus phoenicis (Acari: Tenuipalpidae). Tissue section analysis of the leaf lesions under transmission electron microscope showed characteristic cytopathic effects of the nuclear type, indicating that the symptoms were caused by a Brevipalpus-transmitted virus (BTV), named Clerodendrum Chlorotic Spot Virus (ClCSV). This virus was shown to be transmitted mechanically and by B. phoenicis to several plant species. In order to complete ClCSV characterization, anatomical changes in the leaf lesions of ClCSV-infected leaves were evaluated. Histological sections of healthy, control leaves and leaf lesions of ClCSV-infected plants of C. x speciosum, Hibiscus schizopetalus, Salvia leucantha, Malvaviscus arboreus and Annona muricata were analyzed. ClCSV infection resulted in similar tissue alterations caused by other BTV as Citrus Leprosies Virus Cytoplasmic (CiLV-C) and Nuclear (CiLV-N), Coffee Ringspot Virus (CoRSV), Solanum violaefolium Ringspot Virus (SvRSV) and Orchid Fleck Virus (OFV). Such symptoms consisted of hypertrophy and hyperplasia frequently followed by necrosis in palisade and spongy parenchyma tissues. (AU) | |
| FAPESP's process: | 00/11805-0 - Characterization of plant viruses transmitted by the false spider mite Brevipalpus spp. (Tenuipalpidae) and studies on the virus/vector/plant relationship |
| Grantee: | Elliot Watanabe Kitajima |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 08/52691-9 - Management of citrus leprosis |
| Grantee: | Elliot Watanabe Kitajima |
| Support Opportunities: | Research Projects - Thematic Grants |