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Registro Completo |
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
20/09/1996 |
Data da última atualização: |
20/09/1996 |
Autoria: |
SIMCH, T. L. de; SILVA, I. M. da. |
Afiliação: |
FAEM-UFPEL, Pelotas, RS. |
Título: |
A cultura da melancia como alternativa na viabilizacao economica da producao familiar em Capao do Leao - RS. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
Horticultura Brasileira, Brasilia, v.14, n.1, p.120, maio 1996. |
Idioma: |
Português |
Notas: |
Resumo. |
Palavras-Chave: |
Brasil; Capao do Leao; Home garden; Producao familiar; Production; Rio Grande do Sul; Watermelon. |
Thesagro: |
Citrullus Lanatus; Melancia. |
Thesaurus Nal: |
Brazil. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00721naa a2200253 a 4500 001 1755722 005 1996-09-20 008 1996 bl uuuu u00u1 u #d 100 1 $aSIMCH, T. L. de 245 $aA cultura da melancia como alternativa na viabilizacao economica da producao familiar em Capao do Leao - RS. 260 $c1996 500 $aResumo. 650 $aBrazil 650 $aCitrullus Lanatus 650 $aMelancia 653 $aBrasil 653 $aCapao do Leao 653 $aHome garden 653 $aProducao familiar 653 $aProduction 653 $aRio Grande do Sul 653 $aWatermelon 700 1 $aSILVA, I. M. da 773 $tHorticultura Brasileira, Brasilia$gv.14, n.1, p.120, maio 1996.
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Registro original: |
Embrapa Hortaliças (CNPH) |
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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
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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.
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