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Hyphal-like extension and pseudohyphal formation in industrial strains of yeasts induced by isoamyl alcohol BJM
Ceccato-Antonini,Sandra Regina; Silva,Paula Cristina da.
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...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Isoamyl alcohol; Ethanol; Yeast; Pseudohyphae; Hyphal-like extension.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300004
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