Evidence map›Paper›PMID 9925600›Full record

ArticleApplied and environmental microbiology1999

Genetic evidence that high noninduced maltase and maltose permease activities, governed by MALx3-encoded transcriptional regulators, determine efficiency of gas production by baker's yeast in unsugared dough.

V J Higgins, M Braidwood, P Bell, P Bissinger, I W Dawes, P V Attfield

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Article in Applied and environmental microbiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.1field-weighted citation impact, top 24% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 49 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

V J HigginsSchool of Biochemistry and Molecular Genetics, University of New South Wales, Sydney, New South Wales 2052, Australia.
M Braidwood
P Bell
P Bissinger
I W Dawes
P V Attfield
UNSW Sydney · AUIP Australia · AULaboratory of Molecular Genetics · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Strain selection and improvement in the baker's yeast industry have aimed to increase the speed of maltose fermentation in order to increase the leavening activity of industrial baking yeast. We identified two groups of baker's strains of Saccharomyces cerevisiae that can be distinguished by the mode of regulation of maltose utilization. One group (nonlagging strains), characterized by rapid maltose fermentation, had at least 12-fold more maltase and 130-fold-higher maltose permease activities than maltose-lagging strains in the absence of inducing sugar (maltose) and repressing sugar (glucose). Increasing the noninduced maltase activity of a lagging strain 13-fold led to an increase in CO2 production in unsugared dough. This increase in CO2 production also was seen when the maltose permease activity was increased 55-fold. Only when maltase and maltose permease activities were increased in concert was CO2 production by a lagging strain similar to that of a nonlagging strain. The noninduced activities of maltase and maltose permease constitute the largest determinant of whether a strain displays a nonlagging or a lagging phenotype and are dependent upon the MALx3 allele. Previous strategies for strain improvement have targeted glucose derepression of maltase and maltose permease expression. Our results suggest that increasing noninduced maltase and maltose permease levels is an important target for improved maltose metabolism in unsugared dough.

Indexed as

Food MicrobiologyGenes, Fungalalpha-GlucosidasesCarbon DioxideEnzyme InductionFermentationGlucoseMaltoseMembrane Transport ProteinsMonosaccharide Transport ProteinsSaccharomyces cerevisiaeTranscription Factorsalpha-GlucosidasesCarbon DioxideGlucoseMaltosemaltose permeaseMembrane Transport ProteinsMonosaccharide Transport ProteinsTranscription Factors

Identifiers

PMID9925600
PMCPMC91079
OpenAlexW2113817126

What OpenQuestion holds

Textmetadata
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.