NDLI: Physiological and metabolic diversity in the yeast Kluyveromyces marxianus

Content Provider	Springer Nature Link
Author	Lane, Melanie M. Burke, Niall Karreman, Rob Wolfe, Kenneth H. O’Byrne, Cor P. Morrissey, John P.
Copyright Year	2011
Abstract	Kluyveromyces marxianus is homothallic hemiascomycete yeast frequently isolated from dairy environments. It possesses phenotypic traits such as enhanced thermotolerance, inulinase production, and rapid growth rate that distinguish it from its closest relative Kluyveromyces lactis. Certain of these traits, notably fermentation of lactose and inulin to ethanol, make this yeast attractive for industrial production of ethanol from inexpensive substrates. There is relatively little known, however, about the diversity in this species, at the genetic, metabolic or physiological levels. This study compared phenotypic traits of 13 K. marxianus strains sourced from two European Culture Collections. A wide variety of responses to thermo, osmotic, and cell wall stress were observed, with some strains showing multi-stress resistance. These traits generally appeared unlinked indicating that, as with other yeasts, multiple resistance/adaptation pathways are present in K. marxianus. The data indicate that it should be possible to identify the molecular basis of traits to facilitate selection or engineering of strains adapted for industrial environments. The loci responsible for mating were also identified by genome sequencing and PCR analysis. It was found that K. marxianus can exist as stable haploid or diploid cells, opening up additional prospects for future strain engineering.
Starting Page	507
Ending Page	519
Page Count	13
File Format	PDF
ISSN	00036072
Journal	Antonie van Leeuwenhoek
Volume Number	100
Issue Number	4
e-ISSN	15729699
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-06-15
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Kluyveromyces marxianus Industrial yeast Physiology Stress Ploidy Soil Science & Conservation Microbiology Medical Microbiology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Biology Microbiology

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Physiological diversity within the kluyveromyces marxianus species

Editors’ Note: Physiological diversity within the Kluyveromyces marxianus species

The high fermentative metabolism of Kluyveromyces marxianus UFV-3 relies on the increased expression of key lactose metabolic enzymes

Essentiality of respiratory activity for pentose utilization in thermotolerant yeast Kluyveromyces marxianus DMKU 3-1042

Ethanol production from Jerusalem artichoke tubers at high temperature by newly isolated thermotolerant inulin-utilizing yeast Kluyveromyces marxianus using consolidated bioprocessing

Kinetics of growth and ethanol formation from a mix of glucose/xylose substrate by Kluyveromyces marxianus UFV-3

Bioprospecting of thermo- and osmo-tolerant fungi from mango pulp–peel compost for bioethanol production

Stress tolerance and growth physiology of yeast strains from the Brazilian fuel ethanol industry

Physiological and metabolic diversity in the yeast Kluyveromyces marxianus.

Physiological and metabolic diversity in the yeast Kluyveromyces marxianus

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Physiological diversity within the kluyveromyces marxianus species

Editors’ Note: Physiological diversity within the Kluyveromyces marxianus species

The high fermentative metabolism of Kluyveromyces marxianus UFV-3 relies on the increased expression of key lactose metabolic enzymes

Essentiality of respiratory activity for pentose utilization in thermotolerant yeast Kluyveromyces marxianus DMKU 3-1042

Ethanol production from Jerusalem artichoke tubers at high temperature by newly isolated thermotolerant inulin-utilizing yeast Kluyveromyces marxianus using consolidated bioprocessing

Kinetics of growth and ethanol formation from a mix of glucose/xylose substrate by Kluyveromyces marxianus UFV-3

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