Transmission of Methylobacterium mesophilicum by Bucephalogonia xanthophis for Paratransgenic Control Strategy of Citrus Variegated Chlorosis

Autor(es)

Gai, Claudia Santos ^[1] ; Lacava, Paulo Teixeira ^[1] ; Quecine, Maria Carolina ^[1] ; Auriac, Marie-Christine ^[2] ; Spotti Lopes, Joao Roberto ^[3] ; Araujo, Welington Luiz ^[1] ; Miller, Thomas Albert ^[4] ; Azevedo, Joao Lucia ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Genet, Escola Super Agr Luiz de Queiroz, BR-13400970 Piracicaba, SP - Brazil

^[2] INRA, CNRS, Lab Interact Plantes Microorganism, F-31326 Castanet Tolosan - France

^[3] Univ Sao Paulo, Dept Entomol Plant Pathol & Agr Zool, Escola Super Agr Luiz de Queiroz, BR-13418900 Piracicaba, SP - Brazil

^[4] Univ Calif Riverside, Dept Entomol, Riverside, CA - USA

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF MICROBIOLOGY; v. 47, n. 4, p. 448-454, AUG 2009.
• Citações Web of Science: 20

Resumo

Methylobacterium mesophilicum, originally isolated as an endophytic bacterium from citrus plants, was genetically transformed to express green fluorescent protein (GFP). The GFP-labeled strain of M. mesophilicum was inoculated into Catharanthus roseus (model plant) seedlings and further observed colonizing its xylem vessels. The transmission of this endophyte by Bucephalogonia xanthophis, one of the insect vectors that transmit Xylella fastidiosa subsp. pauca, was verified by insects feeding from fluids containing the GFP bacterium followed by transmission to plants and isolating the endophyte from C. roseus plants. Forty-five days after inoculation, the plants exhibited endophytic colonization by M. mesophilicum, confirming this bacterium as a nonpathogenic, xylem-associated endophyte. Our data demonstrate that M. mesophilicum not only occupy the same niche of X. fastidiosa subsp. pauca inside plants but also may be transmitted by B. xanthophis. The transmission, colonization, and genetic manipulation of M. mesophilicum is a prerequisite to examining the potential use of symbiotic control to interrupt the transmission of X. fastidiosa subsp. pauca, the bacterial pathogen causing Citrus variegated chlorosis by insect vectors. (AU)

• Processo FAPESP: 06/55494-4 - Interação entre Xylella fastidiosa e bactérias endofíticas de citros
• Beneficiário: João Lúcio de Azevedo
• Modalidade de apoio: Auxílio à Pesquisa - Regular