The levels of various enzymes and components of the glycolytic and respiratory pathways of the yeast Saccharomyces cerevisiae have been determined during a step-down, anaerobic-to-aerobic transition. These activities were determined as an adjunct to the respective metabolite data reported in the first paper in this series. It is clear from the data that anaerobic conditions induce an environment conducive to express glycolytic enzyme activities, while manifesting a differential induction/repression effect on oxidative enzymes. An NAD/NADH mediated mechanism is proposed to explain this difference. Of the enzymes assayed only cytochrome c oxidase shows any direct response to oxygen challenge and consequently it is suggested that the assembly of this enzyme is the trigger mechanism and rate-limiting step in aerobic adaptation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1139/m75-127 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Unveiling triclosan biodegradation: Novel metabolic pathways, genomic insights, and global environmental adaptability of Pseudomonas sp. strain W03.
J Hazard Mater
January 2025
Marine Synthetic Ecology Research Center, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Marine Science, Sun Yat-sen University, Zhuhai 519080, China. Electronic address:
The polychlorinated aromatic antimicrobial agent triclosan (TCS) is widely used to indiscriminately and rapidly kill microorganisms. The global use of TCS has led to widespread environmental contamination, posing significant threats to ecosystem and human health. Here we reported a newly isolated Pseudomonas sp.
View Article and Find Full Text PDFThe Impact of Breakfast Consumption or Omission on Exercise Performance and Adaptations: A Narrative Review.
Nutrients
January 2025
Basic and Applied Laboratory for Dietary Interventions in Exercise and Sport, Department of Health, Kinesiology, and Sport, University of South Alabama, Mobile, AL 36688, USA.
Background: Breakfast is often termed the most important meal of the day. However, its importance to acute and chronic adaptations to exercise is currently not well summarized throughout the literature.
Methods: A narrative review of the experimental literature regarding breakfast consumption's impact on acute and chronic exercise performance and alterations in body composition prior to November 2024 was conducted.
Combined Effects of Spirulina Liquid Extract and Endurance Training on Aerobic Performance and Muscle Metabolism Adaptation in Wistar Rats.
Nutrients
January 2025
BiOSSE, Biology of Organisms, Stress, Health, Environment, Institut Universitaire de Technologie, Département Génie Biologique, Le Mans Université, 53020 Laval, France.
Background: Physical activity, such as running, protects against cardiovascular disease and obesity but can induce oxidative stress. Athletes often consume antioxidants to counteract the overproduction of reactive oxygen and nitrogen species during exercise. , particularly its phycocyanin content, activates the Nrf2 pathway, stimulating antioxidant responses.
View Article and Find Full Text PDFEffects of Short-Term Low Energy Availability on Metabolism and Performance-Related Parameters in Physically Active Adults.
Nutrients
January 2025
Department of Sports Medicine and Sports Nutrition, Ruhr University Bochum, 44801 Bochum, Germany.
Background/objectives: Low energy availability (LEA) can cause impaired reproductive function, bone health issues, and suppressed immune function, and may result in decreased performance and overall health status. The purpose of this study was to investigate adaptions of body composition, blood status, resting metabolic rate, and endurance performance to gain more comprehensive insights into the symptoms of LEA and the adaptive effects in the athlete population (active women (n = 11) and men (n = 11)).
Methods: Three treatments were defined as 45 (EA45, control), 30 (EA30), and 10 (EA10) kcal/kg FFM/day and randomly assigned.
The Application of Olive-Derived Polyphenols on Exercise-Induced Inflammation: A Scoping Review.
Nutrients
January 2025
Cambridge Centre for Sport and Exercise Sciences (CCSES), Faculty of Science and Engineering, Anglia Ruskin University, Cambridge CB1 1PT, UK.
Background/objectives: There is current scientific interest pertaining to the therapeutic effects of olive-derived polyphenols (ODPs), in particular their associated anti-inflammatory properties, following the wealth of research surrounding the physiological impact of the Mediterranean Diet (MD). Despite this association, the majority of the current literature investigates ODPs in conjunction with metabolic diseases. There is limited research focusing on ODPs and acute inflammation following exercise, regardless of the knowledge surrounding the elevated inflammatory response during this time.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!