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Registro Completo |
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
18/01/2023 |
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Data da última atualização: |
25/10/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALMEIDA, J. R. M. de; WIMAN, M.; HEER, D.; BRINK, D. P.; SAUER, U.; HAHN‐HÄGERDAL, B.; LIDÉN, G.; GORWA‐GRAUSLUND, M. F. |
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Afiliação: |
JOAO RICARDO MOREIRA DE ALMEIDA, CNPAE; MAGNUS WIMAN, LUND UNIVERSITY; DOMINIK HEER, INSTITUTE OF MOLECULAR SYSTEMS BIOLOGY; DANIEL P. BRINK, LUND UNIVERSITY; UWE SAUER, INSTITUTE OF MOLECULAR SYSTEMS BIOLOGY; BÄRBEL HAHN‐HÄGERDAL, LUND UNIVERSITY; GUNNAR LIDÉN, LUND UNIVERSITY; MARIE F. GORWA‐GRAUSLUND, LUND UNIVERSITY. |
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Título: |
Physiological and molecular characterization of yeast cultures pre-adapted for fermentation of lignocellulosic hydrolysate. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Fermentation, v. 9, n. 72, p. 2-21, 2023. |
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DOI: |
https://doi.org/10.3390/fermentation9010072 |
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Idioma: |
Inglês |
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Conteúdo: |
Economically feasible bioethanol process from lignocellulose requires efficient fermentation by yeast of all sugars present in the hydrolysate. However, when exposed to lignocellulosic hydrolysate, Saccharomyces cerevisiae is challenged with a variety of inhibitors that reduce yeast viability, growth, and fermentation rate, and in addition damage cellular structures. In order to evaluate the capability of S. cerevisiae to adapt and respond to lignocellulosic hydrolysates, the physiological effect of cultivating yeast in the spruce hydrolysate was comprehensively studied by assessment of yeast performance in simultaneous saccharification and fermentation (SSF), measurement of furaldehyde reduction activity, assessment of conversion of phenolic compounds and genome‐wide transcription analysis. The yeast cultivated in spruce hydrolysate developed a rapid adaptive response to lignocellulosic hydrolysate, which significantly improved its fermentation performance in subsequent SSF experiments. The adaptation was shown to involve the induction of NADPHdependent aldehyde reductases and conversion of phenolic compounds during the fed‐batch cultivation. These properties were correlated to the expression of several genes encoding oxidoreductases, notably AAD4, ADH6, OYE2/3, and YML131w. The other most significant transcriptional changes involved genes involved in transport mechanisms, such as YHK8, FLR1, or ATR1. A large set of genes were found to be associated with transcription factors (TFs) involved in stress response (Msn2p, Msn4p, Yap1p) but also cell growth and division (Gcr4p, Ste12p, Sok2p), and these TFs were most likely controlling the response at the post‐transcriptional level. MenosEconomically feasible bioethanol process from lignocellulose requires efficient fermentation by yeast of all sugars present in the hydrolysate. However, when exposed to lignocellulosic hydrolysate, Saccharomyces cerevisiae is challenged with a variety of inhibitors that reduce yeast viability, growth, and fermentation rate, and in addition damage cellular structures. In order to evaluate the capability of S. cerevisiae to adapt and respond to lignocellulosic hydrolysates, the physiological effect of cultivating yeast in the spruce hydrolysate was comprehensively studied by assessment of yeast performance in simultaneous saccharification and fermentation (SSF), measurement of furaldehyde reduction activity, assessment of conversion of phenolic compounds and genome‐wide transcription analysis. The yeast cultivated in spruce hydrolysate developed a rapid adaptive response to lignocellulosic hydrolysate, which significantly improved its fermentation performance in subsequent SSF experiments. The adaptation was shown to involve the induction of NADPHdependent aldehyde reductases and conversion of phenolic compounds during the fed‐batch cultivation. These properties were correlated to the expression of several genes encoding oxidoreductases, notably AAD4, ADH6, OYE2/3, and YML131w. The other most significant transcriptional changes involved genes involved in transport mechanisms, such as YHK8, FLR1, or ATR1. A large set of genes were found to be associated with transcr... Mostrar Tudo |
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Thesaurus Nal: |
Industrial microbiology; Lignocellulose; Microarray technology; Phenolic compounds; Transcriptomics. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1151045/1/Physiological-and-molecular.pdf
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Marc: |
LEADER 02594naa a2200277 a 4500
001 2151045
005 2023-10-25
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/fermentation9010072$2DOI
100 1 $aALMEIDA, J. R. M. de
245 $aPhysiological and molecular characterization of yeast cultures pre-adapted for fermentation of lignocellulosic hydrolysate.$h[electronic resource]
260 $c2023
520 $aEconomically feasible bioethanol process from lignocellulose requires efficient fermentation by yeast of all sugars present in the hydrolysate. However, when exposed to lignocellulosic hydrolysate, Saccharomyces cerevisiae is challenged with a variety of inhibitors that reduce yeast viability, growth, and fermentation rate, and in addition damage cellular structures. In order to evaluate the capability of S. cerevisiae to adapt and respond to lignocellulosic hydrolysates, the physiological effect of cultivating yeast in the spruce hydrolysate was comprehensively studied by assessment of yeast performance in simultaneous saccharification and fermentation (SSF), measurement of furaldehyde reduction activity, assessment of conversion of phenolic compounds and genome‐wide transcription analysis. The yeast cultivated in spruce hydrolysate developed a rapid adaptive response to lignocellulosic hydrolysate, which significantly improved its fermentation performance in subsequent SSF experiments. The adaptation was shown to involve the induction of NADPHdependent aldehyde reductases and conversion of phenolic compounds during the fed‐batch cultivation. These properties were correlated to the expression of several genes encoding oxidoreductases, notably AAD4, ADH6, OYE2/3, and YML131w. The other most significant transcriptional changes involved genes involved in transport mechanisms, such as YHK8, FLR1, or ATR1. A large set of genes were found to be associated with transcription factors (TFs) involved in stress response (Msn2p, Msn4p, Yap1p) but also cell growth and division (Gcr4p, Ste12p, Sok2p), and these TFs were most likely controlling the response at the post‐transcriptional level.
650 $aIndustrial microbiology
650 $aLignocellulose
650 $aMicroarray technology
650 $aPhenolic compounds
650 $aTranscriptomics
700 1 $aWIMAN, M.
700 1 $aHEER, D.
700 1 $aBRINK, D. P.
700 1 $aSAUER, U.
700 1 $aHAHN‐HÄGERDAL, B.
700 1 $aLIDÉN, G.
700 1 $aGORWA‐GRAUSLUND, M. F.
773 $tFermentation$gv. 9, n. 72, p. 2-21, 2023.
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Registro original: |
Embrapa Agroenergia (CNPAE) |
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| 185. |  | SANTOS, E. O. dos; SANTOS, R. S.; OLIVEIRA, L. C. de. Determinação do nível de dano causado por Tetranychus ogmophallos (Acari: Tetranychidae) em amendoim forrageiro no Estado do Acre. In: SEMINÁRIO DA EMBRAPA ACRE DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO, 3., 2020, Rio Branco, AC. Ciência e tecnologia na sociedade digital (edição on-line): anais. Rio Branco, AC: Embrapa Acre, 2021. p. 53-58. Apresentação oral. (Embrapa Acre. Eventos técnicos & científicos, 3). Editores: Virgínia de Souza Álvares, Fabiano Marçal Estanislau.| Tipo: Artigo em Anais de Congresso |
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| 198. | | ANTUNES, J. de O.; TESSARO, P. G.; SANTOS, R. S. S. dos; SILVEIRA, S. V. da. Metodologia para contagem de sementes em frutos de Kiwi. In: ENCONTRO DE INICIAÇÃO CIENTÍFICA, 17., ENCONTRO DE PÓS-GRADUANDOS DA EMBRAPA UVA E VINHO, 13., 2019, Bento Gonçalves. Anais... Bento Gonçalves: Embrapa Uva e Vinho, 18 e 19 de julho de 2019. (Embrapa Uva e Vinho. Documentos, 115). Resumo 11.| Tipo: Resumo em Anais de Congresso |
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| 200. | | RAMOS, D. L. DIAS; SANTOS, R. S.; MATIAS, J. R.; RIBEIRO, R. C.; DANTAS, B. F. Teor de açúcares redutores em plântulas de Aroeira-do-sertão (Myracrodruon urundeuva Fr. All.) germinadas em água biossalina. In: WORKSHOP DE SEMENTES E MUDAS DA CAATINGA, 4, 2012, Petrolina. Anais... Petrolina: Embrapa Semiárido, 2014. p. 9-14. (Embrapa Semiárido. Documentos, 258).| Tipo: Artigo em Anais de Congresso |
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