Rhodotorula mucilaginosa survives under extreme conditions by using and controlling both, a branched respiratory chain and carotenoid synthesis
2024; Elsevier BV; Volume: 123; Issue: 3 Linguagem: Inglês
10.1016/j.bpj.2023.11.3168
ISSN1542-0086
AutoresSalvador Uribe‐Carvajal, Paulina Castañeda Tamez, Ofelia A. Mendez Romero, Carolina Ricardez García, Edson Erivan Mosqueda Martínez, Paola Acosta Valdelamar, Mauricio Reyes Becerril, Natalia Chiquete Félix, Alfredo Cabrera Orefice,
Tópico(s)Environmental Toxicology and Ecotoxicology
ResumoThe remarkable resilience that many organisms show when exposed to stressful conditions is illustrated by Rhodotorula mucilaginosa. This organism may be found almost anywhere in the planet. Its survival ability may at least in part, be explained by the stress-promoted expression of diverse protection systems. R. mucilaginosa controls the expression of a mitochondrial branched respiratory chain (RC) and thus may uncouple oxidative phosphorylation when in the presence of excess substrates. A second protection system promoted by exposure to oxidative stress is the synthesis of large concentrations of carotenoids that quench free radicals.
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