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Changes in the Pi uptake and polyP accumulation in Saccharomyces cerevisiae strains deficient in the synthesis of trehalose and/or glycerol

Paper ID Volume ID Publish Year Pages File Format Full-Text
36142 45122 2007 5 PDF Available
Title
Changes in the Pi uptake and polyP accumulation in Saccharomyces cerevisiae strains deficient in the synthesis of trehalose and/or glycerol
Abstract

The intracellular level of free inorganic orthophosphate (Pi) in yeast cells generally depends on the Pi uptake capacity, energy state of the cells in respect to the activity of the membrane-associated ATPases and on the activity of metabolic pathways involved in the production of glycerol and trehalose. Batch fermentation was performed to investigate the carbon substrate consumption, the Pi uptake capacity and product formation by four Saccharomyces cerevisiae strains differing in their ability to produce glycerol and/or trehalose. The consumption of Pi in mutant strains with a lack of the synthesis of the trehalose and/or glycerol exceeded the level for a wild type strain about two times. Maximum intracellular polyP content (29.9 mg/g DW) was shown for tps1Δ gpd1Δ mutant. In this study we showed that the Pi uptake and polyP accumulation level were closely connected with the changes in the synthesis of trehalose and glycerol.

Keywords
Saccharomyces cerevisiae; Galactose; Glycerol; Trehalose; Pi (inorganic orthophosphate); polyP (polyphosphate)
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Changes in the Pi uptake and polyP accumulation in Saccharomyces cerevisiae strains deficient in the synthesis of trehalose and/or glycerol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 42, Issue 3, March 2007, Pages 434–438
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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Full-text PDF Download
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