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5. Comparison of the genomes of two Xanthomonas pathogens with differing host specificities

Author

da Silva, A. C. R., Ferro, J. A., Reinach, F. C., Farah, C. S., Furlan, L. R., Quaggio, R. B., Monteiro-Vitorello, C. B., Sluys, M. A. Van, Almeida, N. F., Alves, L. M. C., do Amaral, A. M., Bertolini, M. C., Camargo, L. E. A., Camarotte, G., Cannavan, F., Cardozo, J., Chambergo, F., Ciapina, L. P., Cicarelli, R. M. B., Coutinho, L. L., Cursino-Santos, J. R., El-Dorry, H., Faria, J. B., Ferreira, A. J. S., Ferreira, R. C. C., Ferro, M. I. T., Formighieri, E. F., Franco, M. C., Greggio, C. C., Gruber, A., Katsuyama, A. M., Kishi, L. T., Leite, R. P., Lemos, E. G. M., Lemos, M. V. F., Locali, E. C., Machado, M. A., Madeira, A. M. B. N., Martinez-Rossi, N. M., Martins, E. C., Meidanis, J., Menck, C. F. M., Miyaki, C. Y., Moon, D. H., Moreira, L. M., Novo, M. T. M., Okura, V. K., Oliveira, M. C., Oliveira, V. R., Pereira, H. A., Rossi, A., Sena, J. A. D., Silva, C., de Souza, R. F., Spinola, L. A. F., Takita, M. A., Tamura, R. E., Teixeira, E. C., Tezza, R. I. D., Trindade dos Santos, M., Truffi, D., Tsai, S. M., White, F. F., Setubal, J. C., and Kitajima, J. P.

Published
2002
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6. The genome sequence of the plant pathogen Xylella fastidiosa

Author

Simpson, A. J. G., Reinach, F.C., Arruda, P., Abreu, F. A., Acencio, M., Alvarenga, R., Alves, L. M. C., Araya, J. E., Baia, G. S., Baptista, C. S., Barros, M. H., Bonaccorsi, E. D., Bordin, S., Bové, J. M., Briones, M. R. S., Bueno, M. R. P., Camargo, A. A., Camargo, L. E. A., Carraro, D. M., Carrer, H., Colauto, N. B., Colombo, C., Costa, F. F., Costa, M. C. R., Costa-Neto, C. M., Coutinho, L. L., Cristofani, M., Dias-Neto, E., Docena, C., El-Dorry, H., Facincani, A. P., Ferreira, A. J. S., Ferreira, V. C. A., Ferro, J. A., Fraga, J. S., França, S. C., Franco, M. C., Frohme, M., Furlan, L. R., Garnier, M., Goldman, G. H., Goldman, M. H. S., Gomes, S. L., Gruber, A., Ho, P. L., Hoheisel, J. D., Junqueira, M. L., Kemper, E. L., Kitajima, J.P., Krieger, J. E., Kuramae, E. E., Laigret, F., Lambais, M. R., Leite, L. C. C., Lemos, E. G. M., Lemos, M. V. F., Lopes, S. A., Lopes, C. R., Machado, J. A., Machado, M. A., Madeira, A. M. B. N., Madeira, H. M. F., Marino, C. L., Marques, M. V., Martins, E. A. L., Martins, E. M. F., Matsukuma, A. Y., Menck, C. F. M., Miracca, E. C., Miyaki, C. Y., Monteiro-Vitorello, C. B., Moon, D. H., Nagai, M. A., Nascimento, A. L. T. O., Netto, L. E. S., Nhani, Jr, A., Nobrega, F. G., Nunes, L. R., Oliveira, M. A., de Oliveira, M. C., de Oliveira, R. C., Palmieri, D. A., Paris, A., Peixoto, B. R., Pereira, G. A. G., Pereira, Jr, H. A., Pesquero, J. B., Quaggio, R. B., Roberto, P. G., Rodrigues, V., de M. Rosa, A. J., de Rosa, Jr, V. E., de Sá, R. G., Santelli, R. V., Sawasaki, H. E., da Silva, A. C. R., da Silva, A. M., da Silva, F. R., Silva, W. A., da Silveira, J. F., Silvestri, M. L. Z., Siqueira, W. J., de Souza, A. A., de Souza, A. P., Terenzi, M. F., Truffi, D., Tsai, S. M., Tsuhako, M. H., Vallada, H., Van Sluys, M. A., Verjovski-Almeida, S., Vettore, A. L., Zago, M. A., Zatz, M., Meidanis, J., and Setubal, J. C.

Published
2000
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17. Antioxidant and antifungal activities of Camellia sinensis (L.) Kuntze leaves obtained by different forms of production

Author

Camargo, L. E. A., Pedroso, L. S., Vendrame, S. C., Mainardes, R. M., and Khalil, N. M.

Subjects
reactive oxygen species, chás, compostos fenólicos, teas, food and beverages, phenolic compounds, espécies reativa de oxigênio, fermentation method, Candida spp, métodos de fermentação
Abstract

The antioxidant and anticandidal activities of leaves obtained from Camellia sinensis by non-fermentation (green and white teas), semi-fermentation (red tea) and fermentation method (black tea) were investigated. It was evaluated the total phenolic content by Folin-Ciocalteau assay; antioxidant capacities were evaluated in vitro using DPPH and ABTS radicals, hypochlorous acid and superoxide anion scavenger assays, induced hemolysis, lipid peroxidation by conjugated diene formation and myeloperoxidase activity. Anticandidal activity was performed on three strains of Candida spp. The results showed that non-fermented teas have a higher concentration of phenolic compounds, and then presented the best inhibitory activity of AAPH-induced hemolysis, the best inhibition of conjugated diene formation and more pronounced antioxidant activity in all tests. The highest anticandidal activity was obtained from fermented tea, followed by non-fermented tea. These results indicate that the antioxidant activity demonstrated has no direct relation with the anticandidal activity. Resumo A atividade antioxidante e antifúngica das folhas obtidas da Camellia sinensis pelos métodos de não-fermentação (chás verde e branco), semi-fermentação (chá vermelho) e fermentação (chá preto) foram investigadas. Foi avaliado o conteúdo total de compostos fenólicos pelo método de Folin-Ciocalteau; a capacidade antioxidante foi avaliada in vitro usando os radicais artificiais DPPH e ABTS, o ácido hipocloroso, ensaios do ânion superóxido, hemólise induzida, peroxidação lipídica por formação de dienos conjugados e atividade da Mieloperoxidase. A atividade antifúngica foi obtida sobre três cepas de Candida spp. Os resultados obtidos mostram que os chás não fermentados apresentam a maior concentração de compostos fenólicos e também, apresentam a melhor atividade inibitória, sobre hemólise induzida por APPH, sobre a formação de dienos conjugados e a mais pronunciada atividade antioxidante sobre todos os testes. A maior atividade antifúngica foi obtida pelo chá fermentado, seguido pelo semi-fermentado e não-fermentados. Os resultados obtidos demonstram que a atividade antioxidante observada não apresenta relação com a atividade antifúngica.

Published
2016

18. Comparative analyses of the complete genome sequence of Pierce's disease and citrus variegated chlorosis strains of Xylella fastidiosa

Author

Sluys, M. A. van, Oliveira, M. C. de, Monteiro-Vitorello, C. B., Miyaki, C. Y., Furlan, L. R., Camargo, L. E. A., Silva, A. C. R. da, Moon, D. H., Takita, M. A., Lemos, E. G. M., Machado, M. A., Ferro, M. I. T., Silva, F. R. da, Goldman, M. H. S., Goldman, G. H., Lemos, M. V. F., El-Dorry, H., Tsai, S. M., Carrer, H., Carraro, D. M., Oliveira, R. C. de, Nunes, L. R., Siqueira, W. J., Countinho, L. L., Kimura, E. T., Ferro, E. S., Harakava, R., Kuramae, E. E., Marino, C. L., Giglioti, E., Abreu, I. L., Alves, L. M. C., Amaral, A. M. do, Baia, G. S., Blanco, S. R., Brito, M. S., Cannavan, F. S., Celestino, A. V., Cunha, A. F. da, Fenille, R. C., Ferro, J. A., Formighieri, E. F., Kishi, L. T., Leoni, S. G., Oliveira, A. R., Rosa, V. E., Jr., Sassaki, F. T., Sena, J. A. D., Souza, A. A. de, Truffi, D., Tsukumo, F., Yanai, G. M., Zaros, L. G., Civerolo, E. L., Simpson, A. J. G., Almeida, N. F., Jr., Setubal, J. C., and Kitajima, J. P.

Subjects
Microbiological research -- Comparative analysis, Genomes -- Physiological aspects, Bacteria -- Physiological aspects, Bacteria -- Genetic aspects, Biological sciences
Abstract

Research has been conducted on Xylella fastidiosa, gamma-proteobacterium affecting plants including citrus and grapevine. The results of genome analysis of this bacterium isolated from infected grapevine with Pierce's disease are reported.

Published
2003

20. Effect of potassium silicate on epidemic components of powdery mildew on melon

Author

Rodrigues, F. A., Dallagnol, L. J., Tanaka, F. A. O., Amorim, L.pt-BR, and Camargo, L. E. A.

Subjects
Podosphaera xanthii, Silicon, Cucumis melo, Epidemiology, Plant protection
Abstract

The effects of silicon (Si) supplied in the form of potassium silicate (PS) were evaluated on epidemic components of powdery mildew of melon under greenhouse conditions. The PS was applied to the roots or to leaves. In the first experiment, epidemic components were evaluated after inoculation with Podosphaera xanthii. In the second experiment, the disease progress rate was evaluated on plants subjected to natural infection. The area under the disease progress curve was reduced by 65% and 73% in the foliar and root treatments, respectively, compared to control plants, as a consequence of reductions in infection efficiency, colony expansion rate, colony area, conidial production and disease progress rate. However, root application of PS was more effective than foliar application in reducing most of the epidemic components, except for infection efficiency. This can be explained by the high Si concentration in leaf tissues with root application, in contrast to the foliar treatment where Si was only deposited on the external leaf surfaces. The effects of PS reported in this study demonstrated that powdery mildew of melon can be controlled, and that the best results can be achieved when PS is supplied to the roots.

Published
2011

22. Diversity of Xanthomonas spp. associated with bacterial spot of processing tomatoes in Brazil

Author

QUEZADO-DUVAL, A. M., LOPES, C. A., LEITE JÚNIOR, R. P., LIMA, M. F., CAMARGO, L. E. A., ALICE MARIA QUEZADO DUVAL, CNPH, CARLOS ALBERTO LOPES, CNPH, and MIRTES FREITAS LIMA, CPATSA.

Subjects
Xanthomonas, Bactéria, Controle Químico, Tomate industrial, Lycopersicon Esculentum
Abstract

Made available in DSpace on 2020-01-15T00:35:08Z (GMT). No. of bitstreams: 1 QuezadoDuvaletalDiversityofzanthomonas...2005.pdf: 108215 bytes, checksum: 13c9c30fdaa143ba0da99de99eea8d1f (MD5) Previous issue date: 2005

Published
2005

34. Comparative Genomics of Two Leptospira interrogans Serovars Reveals Novel Insights into Physiology and Pathogenesis

Author

Nascimento, A. L. T. O., primary, Ko, A. I., additional, Martins, E. A. L., additional, Monteiro-Vitorello, C. B., additional, Ho, P. L., additional, Haake, D. A., additional, Verjovski-Almeida, S., additional, Hartskeerl, R. A., additional, Marques, M. V., additional, Oliveira, M. C., additional, Menck, C. F. M., additional, Leite, L. C. C., additional, Carrer, H., additional, Coutinho, L. L., additional, Degrave, W. M., additional, Dellagostin, O. A., additional, El-Dorry, H., additional, Ferro, E. S., additional, Ferro, M. I. T., additional, Furlan, L. R., additional, Gamberini, M., additional, Giglioti, E. A., additional, Góes-Neto, A., additional, Goldman, G. H., additional, Goldman, M. H. S., additional, Harakava, R., additional, Jerônimo, S. M. B, additional, Junqueira-de-Azevedo, I. L. M., additional, Kimura, E. T., additional, Kuramae, E. E., additional, Lemos, E. G. M., additional, Lemos, M. V. F., additional, Marino, C. L., additional, Nunes, L. R., additional, de Oliveira, R. C., additional, Pereira, G. G., additional, Reis, M. S., additional, Schriefer, A., additional, Siqueira, W. J., additional, Sommer, P., additional, Tsai, S. M., additional, Simpson, A. J. G., additional, Ferro, J. A., additional, Camargo, L. E. A., additional, Kitajima, J. P., additional, Setubal, J. C., additional, and Van Sluys, M. A., additional

Published
2004
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35. Comparative Analyses of the Complete Genome Sequences of Pierce's Disease and Citrus Variegated Chlorosis Strains of Xylella fastidiosa

Author

Van Sluys, M. A., primary, de Oliveira, M. C., additional, Monteiro-Vitorello, C. B., additional, Miyaki, C. Y., additional, Furlan, L. R., additional, Camargo, L. E. A., additional, da Silva, A. C. R., additional, Moon, D. H., additional, Takita, M. A., additional, Lemos, E. G. M., additional, Machado, M. A., additional, Ferro, M. I. T., additional, da Silva, F. R., additional, Goldman, M. H. S., additional, Goldman, G. H., additional, Lemos, M. V. F., additional, El-Dorry, H., additional, Tsai, S. M., additional, Carrer, H., additional, Carraro, D. M., additional, de Oliveira, R. C., additional, Nunes, L. R., additional, Siqueira, W. J., additional, Coutinho, L. L., additional, Kimura, E. T., additional, Ferro, E. S., additional, Harakava, R., additional, Kuramae, E. E., additional, Marino, C. L., additional, Giglioti, E., additional, Abreu, I. L., additional, Alves, L. M. C., additional, do Amaral, A. M., additional, Baia, G. S., additional, Blanco, S. R., additional, Brito, M. S., additional, Cannavan, F. S., additional, Celestino, A. V., additional, da Cunha, A. F., additional, Fenille, R. C., additional, Ferro, J. A., additional, Formighieri, E. F., additional, Kishi, L. T., additional, Leoni, S. G., additional, Oliveira, A. R., additional, Rosa, V. E., additional, Sassaki, F. T., additional, Sena, J. A. D., additional, de Souza, A. A., additional, Truffi, D., additional, Tsukumo, F., additional, Yanai, G. M., additional, Zaros, L. G., additional, Civerolo, E. L., additional, Simpson, A. J. G., additional, Almeida, N. F., additional, Setubal, J. C., additional, and Kitajima, J. P., additional

Published
2003
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36. COMPARATIVE GENOMIC ANALYSIS OF PLANT-ASSOCIATED BACTERIA

Author

Van Sluys, M. A., primary, Monteiro-Vitorello, C. B., additional, Camargo, L. E. A., additional, Menck, C. F. M., additional, da Silva, A. C. R., additional, Ferro, J. A., additional, Oliveira, M. C., additional, Setubal, J. C., additional, Kitajima, J. P., additional, and Simpson, A. J., additional

Published
2002
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40. A molecular marker linked to the Prv1 gene that confers resistance to Papaya ringspot virus-type W in melon.

Author

Teixeira, A. P. M. and Camargo, L. E. A.

Subjects
*PAPAYA, *PAWPAW, *PLANT genetics, *BOTANY, *PLANT viruses
Abstract

Papaya ringspot virus-type W (PRSV-W) is the most prevalent and important viral pathogen of cucurbits in Brazil. It can be effectively controlled by the incorporation of genetic resistance into susceptible melon cultivars. The present study identified amplified fragment length polymorphic (AFLP) markers linked to the PRSV-W resistance Prv1 allele. The susceptible yellow-fleshed melon-breeding line AF426 prv1 and its nearly isogenic-resistant line AF426 Prv1, which carries the Prv1 allele resident in the Indian cantaloupe U.S. Plant Introduction (PI) 180280, were screened for AFLP marker polymorphisms. Of 30 251 AFLP loci, only three were polymorphic between the nearly isogenic lines. Segregation analyses for these three polymorphic markers and the Prv1 allele using a BC1 population of 197 plants indicated close linkage (0.5% recombination frequency) between marker EK190 ( HindIII-CGA and MseI-GTG; 190 bp) and Prv1. Thus, EK190 might be a useful marker in breeding programmes aiming to develop melon cultivars resistant to PRSV-W. The other two markers are closely linked to each other, but distantly linked to Prv1. [ABSTRACT FROM AUTHOR]

Published
2006
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41. Controle da mancha foliar de Eucalyptus grandis e E. urophylla induzida por Cylindrocladium scoparium com Bacillus sp

Author

BETTIOL, W., AUER, C. G., CAMARGO, L. E. A., KIMATI, H., WAGNER BETTIOL, CNPMA, C. G. AUGER, FETA- ALFENAS/MG, L. E. A. CAMARGO, ESALQ, and HIROSHI KIMATI, ESALQ.

Subjects
Bactéria, Eucalipto, Bacillus sp, Controle Biológico, Antagonismo, Doença, Mancha Foliar, Cylindrocladium Scoparium
Abstract

Foram obtidos isolados de Bacillus sp. oriundos de Eucalyptus grandis, antagonicos a Cylindrocladium scoparium. Após a seleção do isolado mais eficiente em inibir C. scoparium, in vitro, este foi multiplicado em BD (batata-dextrose) e incorporado em meio de BDA, verificando-se uma relação direta entre a concentração do meio BD, incorporado, e a inibicao do crescimento micelial do patógeno. Uma cultura liquida (BD) de Bacillus sp. (AP-28) com 10 dias de idade aplicada uniformemente sobre folhas destacadas de E. grandis e E. urophylla 1, 24 e 48 horas antes da inoculação de uma suspensão com conidios de C. scoparium (10 4 esporos/ml), apresentou controle semelhante ao benomyl (0,5 g/l). Por outro lado, Bacillus sp. nao apresentou controle do patógeno, quando aplicado 24 e 48 horas após a inoculacao de C. scoparium. Não foram verificados efeitos fitopatológicos do Bacillus sp. e nem efeitos fitotóxicos de seus metabólitos. Made available in DSpace on 2017-01-16T23:00:29Z (GMT). No. of bitstreams: 1 1998AP008BettiolControle1397.PDF: 527010 bytes, checksum: 5b36846a3c9e6a9b7677c9b8c4c96650 (MD5) Previous issue date: 1993-08-04

Published
1988

42. Biological and molecular characterization of brazilian isolates of zucchini yellow mosaic virus

Author

Spadotti, D. M. A., Wassano, D. T., Jorge Alberto Marques Rezende, Camargo, L. E. A., Inoue-Nagata, A. K., DAVID MARQUES DE ALMEIDA SPADOTTI, UNIVERSIDADE DE SÃO PAULO, DEBORA TARGINO WASSANO, UNIVERSIDADE DE SÃO PAULO, JOSÉ ALVERTO MARQUES REZENDE, UNIVERSIDADE DE BRASÍLIA, LUÍS EDUARDO ARANHA CAMARGO, UNIVERSIDADE DE SÃO PAULO, and ALICE KAZUKO INOUE NAGATA, CNPH.

Subjects
Zucchini yellow mosaic virus, Potyvirus, Genetic variation, Nucleotide sequences

43. First Report of Tomato chlorosis virus Infecting Tomato Crops in Brazil.

Author

Barbosa JC, Teixeira APM, Moreira AG, Camargo LEA, Filho AB, Kitajima EW, and Rezende JAM

Abstract

During 2006 and 2007 in the region of Sumaré, state of São Paulo, Brazil, surveys were done on tomato (Solanum lycopersicum L.) virus diseases in three open field-grown crops. The data revealed low incidence (0.25 to 3.42%) of randomly distributed plants exhibiting interveinal chlorosis and some necrosis on the basal leaves. Symptoms were only observed on old fruit-bearing plants. Preliminary analysis of thin sections of symptomatic leaves from one plant by transmission electron microscopy revealed the presence of aggregates of thin, flexible, and elongated particles in some phloem vessels, suggesting infection with a member of the genus Crinivirus, family Closteroviridae. Total RNA was extracted separately from leaves of 10 symptomatic plants and used for one-step reverse transcription (RT)-PCR using the HS-11/HS-12 primer pair, which amplifies a fragment of 587 bp from the highly conserved region of the heat shock protein (HSP-70) homolog gene reported for Tomato infectious chlorosis virus (TICV) and Tomato chlorosis virus (ToCV) (1). The RT-PCR product was subsequently tested by nested-PCR for single detection of TICV and ToCV using primer pairs TIC-3/TIC-4 and ToC-5/ToC-6, respectively (1). Only one fragment of approximately 463 bp was amplified from 7 of the 10 plants with the primer pair specific for ToCV. No amplification was obtained with the primers specific for TICV. Two amplicons of 463 bp were purified and directly sequenced in both directions. Sequence comparisons of the 463-bp consensus sequence (GenBank Accession No. EU868927) revealed 99% identity with the reported sequence of ToCV from the United States (GenBank Accession No. AY903448) (3). Virus-free adults of Bemisia tabaci biotype B confined on symptomatic tomato leaves for a 24-h acquisition access period were able to transmit the virus to healthy tomato plants, which reproduced the original symptoms on the bottom leaves 65 days after inoculation under greenhouse conditions. Infection from transmission was confirmed by RT-PCR using the HS-11/HS-12 primer pair. In addition to B. tabaci biotype B, the greenhouse whitefly, Trialeurodes vaporariorum, has also been reported as a vector of ToCV, although it is less efficient than the B. tabaci biotype B in transmission of this virus (4). T. vaporariorum, which was previously considered limited to greenhouses, was recently reported in tomato and green bean (Phaseolus vulgaris L.) crops under field conditions in São Paulo State (2). Therefore, it might also contribute to the spread of ToCV in tomato crops in São Paulo. To our knowledge, this is the first report of ToCV in Brazil and South America. References: (1) C. I. Dovas et al. Plant Dis.86:1345, 2002. (2) A. L. Lourenção et al. Neotrop. Entomol. 37:89, 2008. (3) W. M. Wintermantel et al. Arch. Virol. 15:2287, 2005. (4) W. M. Wintermantel and G. C. Wisler. Plant Dis. 90:814, 2006.

Published
2008
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44. Genome features of Leptospira interrogans serovar Copenhageni.

Author

Nascimento AL, Verjovski-Almeida S, Van Sluys MA, Monteiro-Vitorello CB, Camargo LE, Digiampietri LA, Harstkeerl RA, Ho PL, Marques MV, Oliveira MC, Setubal JC, Haake DA, and Martins EA

Subjects
Animals, Bacterial Proteins genetics, Bacterial Proteins physiology, Leptospira interrogans classification, Leptospira interrogans physiology, Molecular Sequence Data, Protein Transport genetics, Protein Transport physiology, Sequence Analysis, DNA, Genome, Bacterial, Leptospira interrogans genetics
Abstract

We report novel features of the genome sequence of Leptospira interrogans serovar Copenhageni, a highly invasive spirochete. Leptospira species colonize a significant proportion of rodent populations worldwide and produce life-threatening infections in mammals. Genomic sequence analysis reveals the presence of a competent transport system with 13 families of genes encoding for major transporters including a three-member component efflux system compatible with the long-term survival of this organism. The leptospiral genome contains a broad array of genes encoding regulatory system, signal transduction and methyl-accepting chemotaxis proteins, reflecting the organism's ability to respond to diverse environmental stimuli. The identification of a complete set of genes encoding the enzymes for the cobalamin biosynthetic pathway and the novel coding genes related to lipopolysaccharide biosynthesis should bring new light to the study of Leptospira physiology. Genes related to toxins, lipoproteins and several surface-exposed proteins may facilitate a better understanding of the Leptospira pathogenesis and may serve as potential candidates for vaccine.

Published
2004
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