| Full text | |
| Author(s): |
Elliot Watanabe Kitajima
[1]
;
Karen Sumire Kubo
[2]
;
Paulo de Tarso Oliveira Ferreira
[3]
;
Berenice Kussumoto de Alcântara
[4]
;
Alessandra Jesus Boari
[5]
;
Renata Takassugi Gomes
[6]
;
Juliana Freitas-Astua
;
Jorge Alberto Marques Rezende
[8]
;
Gilberto José de Morais
[9]
;
Renato Barbosa Salaroli
[10]
Total Authors: 10
|
| Affiliation: | [1] USP. ESALQ. Depto. de Entomologia, Fitopatologia e Zoologia Agrícola - Brasil
[2] USP. ESALQ. Programa de Pós- Graduação em Fitopatologia
[3] USP. ESALQ. Programa de Pós- Graduação em Fitopatologia
[4] USP. ESALQ
[5] Universidade Federal de Sergipe. Depto. de Agronomia - Brasil
[6] USP. ESALQ. Programa de Pós- Graduação em Fitopatologia
[8] USP. ESALQ. Depto. de Entomologia, Fitopatologia e Zoologia Agrícola - Brasil
[9] USP. ESALQ. Depto. de Entomologia, Fitopatologia e Zoologia Agrícola - Brasil
[10] USP. ESALQ. Depto. de Entomologia, Fitopatologia e Zoologia Agrícola - Brasil
Total Affiliations: 10
|
| Document type: | Journal article |
| Source: | Scientia Agricola; v. 65, n. 1, p. 36-49, 2008-02-00. |
| Abstract | |
Chlorotic spots have been observed in plants of Clerodendrum x speciosum growing in residential gardens and parks in Piracicaba, SP, Brazil. Thin sections of diseased tissues revealed characteristic cytopathic effects of the nuclear type of the Brevipalpus (Acari: Tenuipalpidae) mite-transmitted viruses (BTrV). Brevipalpus mites, identified as B. phoenicis, infesting symptomatic C. x speciosum plants transmitted the pathogen to healthy C. x speciosum and to C. thomsonae, Gomphrena globosa, Hibiscus cannabinus, H. coccineus, H. schizopetalus, Salvia leucantha, Spathiphyllum wallasi and Tetragonia expansa causing chlorotic spots on their leaves. Mechanical inoculation using leaf extracts from infected C. x speciosum resulted in chlorotic spots on inoculated C. x speciosum, Chenopodium quinoa, C. amaranticolor, G. globosa, H. cannabinus, H. coccineus and T. expansa leaves. C. amaranticolor and C. quinoa kept at 28 - 30°C became systemically infected. The same cytopathic effects caused by the nuclear type of BTrV were seen in tissues from all infected test plants by electron microscopy. The virus was purified from systemically infected leaves of C. amaranticolor and C. quinoa. A polyclonal antiserum obtained from an immunized rabbit presented a strong reaction with the homologous antigen in ELISA tests. The results suggest that this chlorotic spot disease of C. x speciosum is caused by a new species of the nuclear type of BTrV, tentatively named Clerodendrum chlorotic spot virus (ClCSV). (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 |