1991
DOI: 10.1016/0141-0229(91)90079-p
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Conversion of glucose/xylose mixtures by Pichia stipitis under oxygen-limited conditions

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Cited by 38 publications
(15 citation statements)
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“…While this phenomenon was observed only within the limited search space of this study, it may be the result of natural selection to produce sugar transporters that prefer hexoses. Even so, it remains possible that xylose fermenters such as S. stipitis and D. hansenii have dedicated xylose transport systems similar in scope to the hexose transport systems of S. cerevisiae based on their respective whole-cell transport phenotypes (11,33). However, even S. stipitis demonstrates a diauxic growth phenotype in glucose-xylose cofermentation (11).…”
Section: Vol 77 2011 Survey For Heterologous Sugar Transport Proteimentioning
confidence: 99%
See 1 more Smart Citation
“…While this phenomenon was observed only within the limited search space of this study, it may be the result of natural selection to produce sugar transporters that prefer hexoses. Even so, it remains possible that xylose fermenters such as S. stipitis and D. hansenii have dedicated xylose transport systems similar in scope to the hexose transport systems of S. cerevisiae based on their respective whole-cell transport phenotypes (11,33). However, even S. stipitis demonstrates a diauxic growth phenotype in glucose-xylose cofermentation (11).…”
Section: Vol 77 2011 Survey For Heterologous Sugar Transport Proteimentioning
confidence: 99%
“…Even so, it remains possible that xylose fermenters such as S. stipitis and D. hansenii have dedicated xylose transport systems similar in scope to the hexose transport systems of S. cerevisiae based on their respective whole-cell transport phenotypes (11,33). However, even S. stipitis demonstrates a diauxic growth phenotype in glucose-xylose cofermentation (11). Therefore, if xylose-preferring transport systems do exist in organisms such as S. stipitis, they are likely to have very low throughput and be quite distinct in sequence space compared to those of the glucose transporters.…”
Section: Vol 77 2011 Survey For Heterologous Sugar Transport Proteimentioning
confidence: 99%
“…It has been postulated that the xylose uptake is Table 5 The effect of cofactor ratio (NADPH:(NADPH+NADH)) of the xylose reductase (XR) reaction on selected central carbon fluxes under aerobic conditions on xylose-glucose mixture (27:3 g/L) in continuous chemostat cultivations at the dilution rate of 0.05 h À1 . The values are presented in % of the total carbon utilization (mmol/mmol) both enhanced and inhibited by glucose (Cirillo, 1961;Does and Bisson, 1989;Grootjen et al, 1991;Ojamo, 1994). In order to study this, xylose uptake assays were performed with the cells grown in shake flask cultivations using 14 C-labeled d-xylose.…”
Section: The Effect Of Decreasing Glucose Level On Metabolism Of Xylosementioning
confidence: 99%
“…Esta capacidade torna a S. stipitis uma levedura promissora para o uso industrial na produção de etanol lignocelulósico (AGBOGBO et al, 2006), tendo em vista que a fermentação de pentoses se faz necessária para a viabilidade econômica deste processo (HUMBIRD et al, 2011), e que a levedura Saccharomyces cerevisiae, amplamente utilizada em processos de produção de etanol, embora apresente elevada produtividade de etanol e tolerância a subprodutos de fermentação, não é capaz de fermentar xilose (ZALDIVAR et al, 2002 VAN DER LANS;LUYBEN, 1991;6-FURLAN;BOUILLOUD;CASTRO, 1994;7-BOYNTON;8-MCMILLAN;9-SLININGER et al, 2006;10-SILVA et al, 2012;11-FARIAS;MAUGERI-FILHO, 2014;12-TELLI-OKUR;EKEN-SARAÇOGLU, 2008;13-MENDES et al, 2009;14-CANILHA et al, 2010;15-SILVA;ROBERTO, 2010;16-BELLIDO et al, 2011;17-MILESSI et al, 2012;18-AHI et al, 2013;19-BELLIDO et al, 2013;20-TORQUERO;BOLADO, 2014. A S. stipitis DSM-3651 é uma linhagem extensamente utilizada em estudos acerca da produção de etanol a partir de meios contendo açúcares encontrados na biomassa lignocelulósica, sejam estes sintéticos ou oriundos de pré-tratamentos. A Tabela 1 compila parâmetros fermentativos relacionados à produção de etanol, obtidos por diversos estudos que utilizaram esta linhagem, a qual também se encontra depositada em outras coleções que não a DSMZ -German Collection of Microorganisms and Cell Cultures, recebendo os códigos ATCC 58376, CBS 5773 ou NRRL Y-7124.…”
Section: Scheffersomyces Stipitisunclassified
“…Ademais, quando submetida a condições aeróbicas, S. stipitis produz principalmente biomassa, enquanto que, sob condições semiaeróbicas, maiores rendimentos de etanol são obtidos (GROOTJEN; VAN DER LANS;LUYBEN, 1991). Em outras palavras, oxigênio não limitante é necessário para sustentar uma alta taxa de crescimento celular; oxigênio em quantidade mínima, por outro lado, é requerido para uma adequada regeneração de coenzimas durante a produção de etanol (SLININGER et al, 1990).…”
Section: Arabinoseunclassified