Glucosylglycerol and proline reverse the effects of glucose on Rhodosporidium toruloides lifespan
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View abstract on PubMed
Summary
This summary is machine-generated.Glucosylglycerol (GG) and proline extend the lifespan of Rhodosporidium toruloides yeast under high glucose stress. These compounds protect cells from aging effects, improving viability and biotechnological applications.
Area Of Science
- Microbial biotechnology
- Yeast longevity
- Biochemical synthesis
Background
- Rhodosporidium toruloides is a yeast utilized for producing valuable compounds like carotenoids and biofuels.
- Research has primarily focused on R. toruloides's production capabilities, with limited investigation into its longevity.
- Understanding longevity factors is crucial for enhancing its biotechnological utility and metabolite yields.
Purpose Of The Study
- To investigate the effects of glucosylglycerol (GG) and proline on R. toruloides longevity.
- To determine if these osmoprotectants can mitigate the negative impacts of glucose-induced stress.
- To explore the mechanisms by which GG and proline influence yeast cell performance and viability.
Main Methods
- Culturing R. toruloides under high glucose conditions (10%) with varying concentrations of GG and proline.
- Assessing cell viability and performance.
- Measuring changes in culture medium osmolarity.
- Quantifying reactive oxygen species (ROS) production.
- Analyzing mitohormetic lifespan regulation.
Main Results
- Both GG and proline significantly enhanced R. toruloides cell performance and viability under high glucose stress.
- GG demonstrated maximum lifespan extension at 100 mM, while proline was effective at 2 mM.
- These compatible solutes altered culture medium osmolarity.
- GG reduced ROS production, and proline influenced mitohormetic lifespan regulation.
Conclusions
- Glucosylglycerol (GG) and proline act as protective agents for R. toruloides, counteracting the pro-aging effects of high glucose.
- These compounds improve yeast cell viability and performance in challenging culture conditions.
- The findings suggest potential strategies for optimizing R. toruloides cultivation for enhanced biotechnological applications.
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