| |
|
|
| Registros recuperados : 123 | |
| 83. |  | RADOMSKI, M. I.; BAGGIO, A. J.; SOARES, A. O. Uso do timbó (Ateleia glazioveana Baillon) como adubação verde para produção de espinheira-santa (Maytenus ilicifolia Martius). Horticultura Brasileira, Brasília, v. 21, n. 2, supl. 1, p. 416, jul. 2003. Edição dos Resumos do Congresso Brasileiro de Olericultura, 43., 2003, Recife.| Biblioteca(s): Embrapa Florestas. |
|   |
| 88. | | CURCIO, G. R.; BONNET, A.; BAGGIO, A. J.; DEDECEK, R. A.; FOWLER, J. A. P. Importância, atributos e classificação. In: RESENDE, A. S. de; CURCIO, G. R.; BONNET, A. (Org.). Produção de mudas espécies arbóreas nativas e suas relações ambientais no "Corredor Ecológico COMPERJ". Colombo: Embrapa Florestas, 2009. p. 12-29.| Biblioteca(s): Embrapa Florestas. |
| |
| 100. | | BAGGIO, A. J.; CARPANEZZI, A. A.; FELIZARI, S. R.; RUFFATO, A. Recuperação de nascentes no Município de Machadinho - RS, associada a ervais comerciais arborizados. In: CONGRESO SUDAMERICANO DE YERBA MATE, 6.; SIMPOSIO INTERNACIONAL DE YERBA MATE Y SALUD, 2., 2014, Montevideo. Memorias. [S.l.]: Grupo Interdisciplinario de Yerba Mate y Salud, 2014. Disponibilizado online. Resumo.| Biblioteca(s): Embrapa Florestas. |
|  |
| Registros recuperados : 123 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Meio Ambiente. |
|
Data corrente: |
22/12/2008 |
|
Data da última atualização: |
22/11/2016 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
Internacional - A |
|
Autoria: |
ETCHEGARAY, A.; BUENO, C. de C.; MELO, I. S. de; TSAI, S. M.; FIORE, M. F.; SILVA-STENICO, M. E.; MORAES, L. A. B. de; TESCHKE, O. |
|
Afiliação: |
Augusto Etchegaray, Faculdade de Química, PUC-Campinas; Carolina de Castro Bueno, Faculdade de Química, PUC-Campinas; ITAMAR SOARES DE MELO, CNPMA; S. M. TSAI, CENA/USP; M. F. FIORE, CENA/USP; M. E. SILVA-STENICO, CENA/USP; L. A. B. de MORAES, Departamento de Química/USP; O. TESCHKE, Laboratório de Nanoestruturas e Interfaces, Instituto de Física, UNICAMP. |
|
Título: |
Effect of a highly concentrated lipopeptide extract of Bacillus subtilis on fungal and bacterial cells. |
|
Ano de publicação: |
2008 |
|
Fonte/Imprenta: |
Archives of Microbiology, v. 190, n. 6, p.611-622, 2008. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Lipopeptides produced by Bacillus subtilis are known for their high antifungal activity. The aim of this paper is to show that at high concentration they can damage the surface ultra-structure of bacterial cells. A lipopeptide extract containing iturin and surfactin (5 mg mL¡1) was prepared after isolation from B. subtilis (strain OG) by solid phase extraction. Analysis by atomic force microscope (AFM) showed that upon evaporation, lipopeptides form large aggregates (0.1?0.2 m2) on the substrates silicon and mica. When the same solution is incubated with fungi and bacteria and the system is allowed to evaporate, dramatic changes are observed on the cells. AFM micrographs show disintegration of the hyphae of Phomopsis phaseoli and the cell walls of Xanthomonas campestris and X. axonopodis. Collapses to fungal and bacterial cells may be a result of formation of pores triggered by micelles and lamellar structures, which are formed above the critical micelar concentration of lipopeptides. As observed for P. phaseoli, the process involves binding, solubilization, and formation of novel structures in which cell wall components are solubilized within lipopeptide vesicles. This is the Wrst report presenting evidences that vesicles of uncharged and negatively charged lipopeptides can alter the morphology of gramnegative bacteria |
|
Thesagro: |
Controle biológico; Fungo. |
|
Categoria do assunto: |
V Taxonomia de Organismos |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/150376/1/2008CP-07.pdf
|
|
Marc: |
LEADER 02028naa a2200229 a 4500
001 1015579
005 2016-11-22
008 2008 bl uuuu u00u1 u #d
100 1 $aETCHEGARAY, A.
245 $aEffect of a highly concentrated lipopeptide extract of Bacillus subtilis on fungal and bacterial cells.$h[electronic resource]
260 $c2008
520 $aLipopeptides produced by Bacillus subtilis are known for their high antifungal activity. The aim of this paper is to show that at high concentration they can damage the surface ultra-structure of bacterial cells. A lipopeptide extract containing iturin and surfactin (5 mg mL¡1) was prepared after isolation from B. subtilis (strain OG) by solid phase extraction. Analysis by atomic force microscope (AFM) showed that upon evaporation, lipopeptides form large aggregates (0.1?0.2 m2) on the substrates silicon and mica. When the same solution is incubated with fungi and bacteria and the system is allowed to evaporate, dramatic changes are observed on the cells. AFM micrographs show disintegration of the hyphae of Phomopsis phaseoli and the cell walls of Xanthomonas campestris and X. axonopodis. Collapses to fungal and bacterial cells may be a result of formation of pores triggered by micelles and lamellar structures, which are formed above the critical micelar concentration of lipopeptides. As observed for P. phaseoli, the process involves binding, solubilization, and formation of novel structures in which cell wall components are solubilized within lipopeptide vesicles. This is the Wrst report presenting evidences that vesicles of uncharged and negatively charged lipopeptides can alter the morphology of gramnegative bacteria
650 $aControle biológico
650 $aFungo
700 1 $aBUENO, C. de C.
700 1 $aMELO, I. S. de
700 1 $aTSAI, S. M.
700 1 $aFIORE, M. F.
700 1 $aSILVA-STENICO, M. E.
700 1 $aMORAES, L. A. B. de
700 1 $aTESCHKE, O.
773 $tArchives of Microbiology$gv. 190, n. 6, p.611-622, 2008.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Meio Ambiente (CNPMA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
