Glucosylglycerol and proline reverse the effects of glucose on Rhodosporidium toruloides lifespan

Rhodosporidium toruloides is a novel cell factory used to synthesis carotenoids, biosurfactants, and biofuel feedstocks. However, research on R. toruloides has generally centred on the manufacture of biochemicals, while analyses of its longevity have received scant attention. Understanding of R. tor...

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Published in:Archives of microbiology 2024-04, Vol.206 (4), p.195-195, Article 195
Main Authors: Odoh, Chuks Kenneth, Madrigal-Perez, Luis Alberto, Kamal, Rasool
Format: Article
Language:English
Subjects:
Aging
Biochemistry
Biofuels
Biomedical and Life Sciences
Biosurfactants
Biotechnology
Carotenoids
Cell Biology
Cell culture
Cellular stress response
culture media
Ecology
Environmental effects
Environmental stress
feedstocks
Glucose
Glucosylglycerol
Life Sciences
Life span
Longevity
manufacturing
Metabolites
Microbial Ecology
Microbiology
Original Paper
Osmolarity
Osmoprotectants
osmotolerance
Proline
Rhodosporidium toruloides
Solutes
viability
Yeasts
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Summary:Rhodosporidium toruloides is a novel cell factory used to synthesis carotenoids, biosurfactants, and biofuel feedstocks. However, research on R. toruloides has generally centred on the manufacture of biochemicals, while analyses of its longevity have received scant attention. Understanding of R. toruloides longevity under different nutrient conditions could help to improve its biotechnological significance and metabolite production. Glucosylglycerol (GG) and proline are osmoprotectants that could revert the harmful effects of environmental stress. This study examined how GG and proline affect R. toruloides strain longevity under glucose nutrimental stress. Herein, we provide evidence that GG and proline enhance cell performance and viability. These compatible solutes neutralises the pro-ageing effects of high glucose (10% glucose) on the yeast cell and reverse its cellular stress. GG exhibits the greatest impact on lifespan extension at 100 mM, whereas proline exerts effect at 2 mM. Our data reveal that these compounds significantly affect the culture medium osmolarity. Moreso, GG and proline decreased ROS production and mitohormetic lifespan regulation, respectively. The data indicates that these solutes (proline and GG) support the longevity of R. toruloides at a pro-ageing high glucose culture condition.
ISSN:0302-8933
1432-072X
DOI:10.1007/s00203-024-03930-8