Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcohol
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Microbiology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300004 |
Resumo: | Yeasts can produce pseudohyphae and hyphal-like extensions under certain growth conditions like isoamyl alcohol (IAA) induction, a chief constituent of fusel oil, which is a subproduct from the ethanolic fermentation. The morphology switch from yeast to a filamentous form can be troublesome to the process. In this work it was studied the influence of fusel alcohols, nitrogen sources (ammonium sulphate and leucine) and glifosate (a chemical maturator for sugar cane) added to a complex medium on some industrial strains of yeasts isolated from the fermentative process. Two industrial strains showed transition to hyphal-like extensions or pseudohyphae (clusters of cells) upon addition of IAA from 0.3 to 0.9% /v. The alterations were reversible when the yeasts were reinoculated in YEPD without IAA. Although pseudohyphae are a result of nitrogen-limited medium, we observed them as a result of IAA addition. No influence of the nitrogen source or isopropilic alcohol or glifosate was detected for any strain studied in the concentrations used. |
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Brazilian Journal of Microbiology |
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Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcoholisoamyl alcoholethanolyeastpseudohyphaehyphal-like extensionYeasts can produce pseudohyphae and hyphal-like extensions under certain growth conditions like isoamyl alcohol (IAA) induction, a chief constituent of fusel oil, which is a subproduct from the ethanolic fermentation. The morphology switch from yeast to a filamentous form can be troublesome to the process. In this work it was studied the influence of fusel alcohols, nitrogen sources (ammonium sulphate and leucine) and glifosate (a chemical maturator for sugar cane) added to a complex medium on some industrial strains of yeasts isolated from the fermentative process. Two industrial strains showed transition to hyphal-like extensions or pseudohyphae (clusters of cells) upon addition of IAA from 0.3 to 0.9% /v. The alterations were reversible when the yeasts were reinoculated in YEPD without IAA. Although pseudohyphae are a result of nitrogen-limited medium, we observed them as a result of IAA addition. No influence of the nitrogen source or isopropilic alcohol or glifosate was detected for any strain studied in the concentrations used.Sociedade Brasileira de Microbiologia2002-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300004Brazilian Journal of Microbiology v.33 n.3 2002reponame:Brazilian Journal of Microbiologyinstname:Sociedade Brasileira de Microbiologia (SBM)instacron:SBM10.1590/S1517-83822002000300004info:eu-repo/semantics/openAccessCeccato-Antonini,Sandra ReginaSilva,Paula Cristina daeng2003-06-23T00:00:00Zoai:scielo:S1517-83822002000300004Revistahttps://www.scielo.br/j/bjm/ONGhttps://old.scielo.br/oai/scielo-oai.phpbjm@sbmicrobiologia.org.br||mbmartin@usp.br1678-44051517-8382opendoar:2003-06-23T00:00Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM)false |
dc.title.none.fl_str_mv |
Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcohol |
title |
Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcohol |
spellingShingle |
Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcohol Ceccato-Antonini,Sandra Regina isoamyl alcohol ethanol yeast pseudohyphae hyphal-like extension |
title_short |
Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcohol |
title_full |
Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcohol |
title_fullStr |
Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcohol |
title_full_unstemmed |
Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcohol |
title_sort |
Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcohol |
author |
Ceccato-Antonini,Sandra Regina |
author_facet |
Ceccato-Antonini,Sandra Regina Silva,Paula Cristina da |
author_role |
author |
author2 |
Silva,Paula Cristina da |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Ceccato-Antonini,Sandra Regina Silva,Paula Cristina da |
dc.subject.por.fl_str_mv |
isoamyl alcohol ethanol yeast pseudohyphae hyphal-like extension |
topic |
isoamyl alcohol ethanol yeast pseudohyphae hyphal-like extension |
description |
Yeasts can produce pseudohyphae and hyphal-like extensions under certain growth conditions like isoamyl alcohol (IAA) induction, a chief constituent of fusel oil, which is a subproduct from the ethanolic fermentation. The morphology switch from yeast to a filamentous form can be troublesome to the process. In this work it was studied the influence of fusel alcohols, nitrogen sources (ammonium sulphate and leucine) and glifosate (a chemical maturator for sugar cane) added to a complex medium on some industrial strains of yeasts isolated from the fermentative process. Two industrial strains showed transition to hyphal-like extensions or pseudohyphae (clusters of cells) upon addition of IAA from 0.3 to 0.9% /v. The alterations were reversible when the yeasts were reinoculated in YEPD without IAA. Although pseudohyphae are a result of nitrogen-limited medium, we observed them as a result of IAA addition. No influence of the nitrogen source or isopropilic alcohol or glifosate was detected for any strain studied in the concentrations used. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1517-83822002000300004 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Microbiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Microbiologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Microbiology v.33 n.3 2002 reponame:Brazilian Journal of Microbiology instname:Sociedade Brasileira de Microbiologia (SBM) instacron:SBM |
instname_str |
Sociedade Brasileira de Microbiologia (SBM) |
instacron_str |
SBM |
institution |
SBM |
reponame_str |
Brazilian Journal of Microbiology |
collection |
Brazilian Journal of Microbiology |
repository.name.fl_str_mv |
Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM) |
repository.mail.fl_str_mv |
bjm@sbmicrobiologia.org.br||mbmartin@usp.br |
_version_ |
1752122199295131648 |