ArticleMicrobial cell factories2018
Real-time monitoring of the budding index in Saccharomyces cerevisiae batch cultivations with in situ microscopy.
Article in Microbial cell factories, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Application of process analytical technology for real-time monitoring of synthetic co-culture bioprocesses.Analytical and bioanalytical chemistry · 2025Review
- Adaptation ofMicroorganisms · 2024Article
- Real-Time Detection of Yeast Growth on Solid Medium through Passive Microresonator Biosensor.Biosensors · 2024Article
- Enhancing biofuels production by engineering the actin cytoskeleton in Saccharomyces cerevisiae.Nature communications · 2022Article
- Potassium and Sodium Salt Stress Characterization in the Yeasts Saccharomyces cerevisiae, Kluyveromyces marxianus, andApplied and environmental microbiology · 2021Article
- Application ofSensors (Basel, Switzerland) · 2021Article
- Development of Novel Bioreactor Control Systems Based on Smart Sensors and Actuators.Frontiers in bioengineering and biotechnology · 2020Review
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Authors and funding
5 authors.
Funding
Abstract
backgroundThe morphology of yeast cells changes during budding, depending on the growth rate and cultivation conditions. A photo-optical microscope was adapted and used to observe such morphological changes of individual cells directly in the cell suspension. In order to obtain statistically representative samples of the population without the influence of sampling, in situ microscopy (ISM) was applied in the different phases of a Saccharomyces cerevisiae batch cultivation. The real-time measurement was performed by coupling a photo-optical probe to an automated image analysis based on a neural network approach.
resultsAutomatic cell recognition and classification of budding and non-budding cells was conducted successfully. Deviations between automated and manual counting were considerably low. A differentiation of growth activity across all process stages of a batch cultivation in complex media became feasible. An increased homogeneity among the population during the growth phase was well observable. At growth retardation, the portion of smaller cells increased due to a reduced bud formation. The maturation state of the cells was monitored by determining the budding index as a ratio between the number of cells, which were detected with buds and the total number of cells. A linear correlation between the budding index as monitored with ISM and the growth rate was found.
conclusionIt is shown that ISM is a meaningful analytical tool, as the budding index can provide valuable information about the growth activity of a yeast cell, e.g. in seed breeding or during any other cultivation process. The determination of the single-cell size and shape distributions provided information on the morphological heterogeneity among the populations. The ability to track changes in cell morphology directly on line enables new perspectives for monitoring and control, both in process development and on a production scale.
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