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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
29/06/2015 |
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Data da última atualização: |
18/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MASCARIN, G. M.; JACKSON, M. A.; KOBORI, N. N.; BEHLE, R. W.; DUNLAP, C. A.; DELALIBERA JÚNIOR, I. |
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Afiliação: |
GABRIEL MOURA MASCARIN, CNPAF; M. A. JACKSON, USDA; NILCE NAOMI KOBORI, USDA; ROBERT W. BEHLE, USDA; CHRISTOPHER A. DUNLAP, USDA; ITALO DELALIBERA JUNIOR, ESALQ. |
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Título: |
Glucose concentration alters dissolved oxygen levels in liquid cultures of Beauveria bassiana and affects formation and bioefficacy of blastospores. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Applied Microbiology and Biotechnology, Berlin, v. 99, n. 16, p. 6653-6665, Aug. 2015. |
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DOI: |
10.1007/s00253-015-6620-3 |
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Idioma: |
Inglês |
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Notas: |
Publicado online: 07 May 2015. |
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Conteúdo: |
The filamentous fungus Beauveria bassiana is an economically important pathogen of numerous arthropod pests and is able to grow in submerged culture as filaments (mycelia) or as budding yeast-like blastospores. In this study, we evaluated the effect of dissolved oxygen and high glucose concentrations on blastospore production by submerged cultures of two isolates of B. bassiana, ESALQ1432 and GHA. Results showed that maintaining adequate dissolved oxygen levels coupled with high glucose concentrations enhanced blastospore yields by both isolates. High glucose concentrations increased the osmotic pressure of the media and coincided with higher dissolved oxygen levels and increased production of significantly smaller blastospores compared with blastospores produced in media with lower concentrations of glucose. The desiccation tolerance of blastospores dried to less than 2.6 % moisture was not affected by the glucose concentration of the medium but was isolate dependent. Blastospores of isolate ESALQ1432 produced in media containing 140 g glucose L-1 showed greater virulence toward whitefly nymphs (Bemisia tabaci) as compared with blastospores produced in media containing 40 g glucose L-1. These results suggest a synergistic effect between glucose concentration and oxygen availability on changing morphology and enhancing the yield and efficacy of blastospores of B. bassiana, thereby facilitating the development of a costeffective production method for this blastospore-based bioinsecticide. MenosThe filamentous fungus Beauveria bassiana is an economically important pathogen of numerous arthropod pests and is able to grow in submerged culture as filaments (mycelia) or as budding yeast-like blastospores. In this study, we evaluated the effect of dissolved oxygen and high glucose concentrations on blastospore production by submerged cultures of two isolates of B. bassiana, ESALQ1432 and GHA. Results showed that maintaining adequate dissolved oxygen levels coupled with high glucose concentrations enhanced blastospore yields by both isolates. High glucose concentrations increased the osmotic pressure of the media and coincided with higher dissolved oxygen levels and increased production of significantly smaller blastospores compared with blastospores produced in media with lower concentrations of glucose. The desiccation tolerance of blastospores dried to less than 2.6 % moisture was not affected by the glucose concentration of the medium but was isolate dependent. Blastospores of isolate ESALQ1432 produced in media containing 140 g glucose L-1 showed greater virulence toward whitefly nymphs (Bemisia tabaci) as compared with blastospores produced in media containing 40 g glucose L-1. These results suggest a synergistic effect between glucose concentration and oxygen availability on changing morphology and enhancing the yield and efficacy of blastospores of B. bassiana, thereby facilitating the development of a costeffective production method for this blastospore-based bi... Mostrar Tudo |
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Palavras-Chave: |
Bemicia tabaci; Desiccation tolerance; Osmoadaptation. |
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Thesagro: |
Beauveria bassiana; Esporo; Fungo; Morfogenese. |
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Thesaurus Nal: |
Aeration; Blastospores; Fungal spores; Morphogenesis; Mycoinsecticides; Virulence. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02606naa a2200361 a 4500
001 2018757
005 2016-03-18
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1007/s00253-015-6620-3$2DOI
100 1 $aMASCARIN, G. M.
245 $aGlucose concentration alters dissolved oxygen levels in liquid cultures of Beauveria bassiana and affects formation and bioefficacy of blastospores.
260 $c2015
500 $aPublicado online: 07 May 2015.
520 $aThe filamentous fungus Beauveria bassiana is an economically important pathogen of numerous arthropod pests and is able to grow in submerged culture as filaments (mycelia) or as budding yeast-like blastospores. In this study, we evaluated the effect of dissolved oxygen and high glucose concentrations on blastospore production by submerged cultures of two isolates of B. bassiana, ESALQ1432 and GHA. Results showed that maintaining adequate dissolved oxygen levels coupled with high glucose concentrations enhanced blastospore yields by both isolates. High glucose concentrations increased the osmotic pressure of the media and coincided with higher dissolved oxygen levels and increased production of significantly smaller blastospores compared with blastospores produced in media with lower concentrations of glucose. The desiccation tolerance of blastospores dried to less than 2.6 % moisture was not affected by the glucose concentration of the medium but was isolate dependent. Blastospores of isolate ESALQ1432 produced in media containing 140 g glucose L-1 showed greater virulence toward whitefly nymphs (Bemisia tabaci) as compared with blastospores produced in media containing 40 g glucose L-1. These results suggest a synergistic effect between glucose concentration and oxygen availability on changing morphology and enhancing the yield and efficacy of blastospores of B. bassiana, thereby facilitating the development of a costeffective production method for this blastospore-based bioinsecticide.
650 $aAeration
650 $aBlastospores
650 $aFungal spores
650 $aMorphogenesis
650 $aMycoinsecticides
650 $aVirulence
650 $aBeauveria bassiana
650 $aEsporo
650 $aFungo
650 $aMorfogenese
653 $aBemicia tabaci
653 $aDesiccation tolerance
653 $aOsmoadaptation
700 1 $aJACKSON, M. A.
700 1 $aKOBORI, N. N.
700 1 $aBEHLE, R. W.
700 1 $aDUNLAP, C. A.
700 1 $aDELALIBERA JÚNIOR, I.
773 $tApplied Microbiology and Biotechnology, Berlin$gv. 99, n. 16, p. 6653-6665, Aug. 2015.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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