Data/hora: 11/06/2024 13:22:38

Provedor de dados: 	63	
País: 	Brazil	
Título: 	Chlorotic spots on Clerodendrum, a disease caused by a nuclear type of Brevipalpus (Acari:Tenuipalpidae) transmitted virus	
Autores: 	Kitajima,Elliot Watanabe; Kubo,Karen Sumire; Ferreira,Paulo de Tarso Oliveira; Alcântara,Berenice Kussumoto de; Boari,Alessandra Jesus; Gomes,Renata Takassugi; Freitas-Astua,Juliana; Rezende,Jorge Alberto Marques; Morais,Gilberto José de; Salaroli,Renato Barbosa.	
Data: 	2008-02-01	
Ano: 	2008	
Palavras-chave: 	Brevipalpus phoenicis; Clerodendrum x speciosum; Host range; Transmission; Purification.	
Resumo: 	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).	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000100006	
Editor: 	São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"	
Relação: 	10.1590/S0103-90162008000100006	
Formato: 	text/html	
Fonte: 	Scientia Agricola  v.65 n.1 2008	
Fonte: 	info:eu-repo/semantics/openAccess