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Ano de início
Entree

Development of an experimental system for pathogenicity tests of Xylella fastidiosa of citrus variegated chlorosis in sweet orange (C. sinensis (L.) Osb.)

Processo: 99/04345-3
Linha de fomento:Auxílio à Pesquisa - Programa GENOMA
Vigência: 01 de julho de 1999 - 31 de maio de 2004
Área do conhecimento:Ciências Agrárias - Agronomia
Pesquisador responsável:Sílvio Aparecido Lopes
Beneficiário:Sílvio Aparecido Lopes
Instituição-sede: Fundo de Defesa da Citricultura (FUNDECITRUS). Araraquara , SP, Brasil
Assunto(s):Xylella fastidiosa  Clorose variegada dos citros  Genoma Xylella fastidiosa 

Resumo

To develop a standardized and optimized experimental system of pathogenicity tests of CVC Xylella fastidiosa, which is essential for the functional genome project, also for further progress in research on pathology, ecology, epidemiology, and control of the disease, two CVC X. fastidiosa strains, one of which is the triply cloned strain 9a5c sequenced by FAPESP genome project, the other is the strain with which Koch's postulates have been fulfilled for the CVC disease in Brazil, will be inoculated in Pera sweet orange (C. sinensis (L.) Osb.), in this project. Four phases of the bacterium growth stage in medium, four ages of sweet orange seedlings, four different temperatures in growth chambers, four inoculation sites in plants and three water stress statues will be compared to study the infection ability of the bacterium at different stages, the susceptibility of sweet orange seedling age to the bacterium, the influences of temperature and water stress on CVC inoculation and pathogenicity of CVC bacterium strains in sweet orange. (AU)

Publicações científicas
(Referências obtidas automaticamente do Web of Science e do SciELO, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores)
LOPES‚ SA; TEIXEIRA‚ DC; FERNANDES‚ NG; AYRES‚ AJ; TORRES‚ SCZ; BARBOSA‚ JC; LI‚ WB. An experimental inoculation system to study citrus-Xylella fastidiosa interactions. PLANT DISEASE, v. 89, n. 3, p. 250-254, 2005.
LI‚ W.B.; ZHOU‚ C.H.; PRIA JR‚ WD; TEIXEIRA‚ DC; MIRANDA‚ VS; PEREIRA‚ EO; AYRES‚ AJ; HE‚ C.X.; COSTA‚ PI; HARTUNG‚ JS. Citrus and coffee strains of Xylella fastidiosa induce Pierce’s disease in grapevine. PLANT DISEASE, v. 86, n. 11, p. 1206-1210, 2002.
LI‚ W.B.; PRIA JR‚ WD; TEIXEIRA‚ DC; MIRANDA‚ VS; AYRES‚ AJ; FRANCO‚ CF; COSTA‚ MG; HE‚ C.X.; COSTA‚ PI; HARTUNG‚ JS. Coffee leaf scorch caused by a strain of Xylella fastidiosa from citrus. PLANT DISEASE, v. 85, n. 5, p. 501-505, 2001.

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