Essays about: "Cross-feeding"
Found 5 essays containing the word Cross-feeding.
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1. The evolutionary origins of phagocytosis in microbial populations
University essay from Umeå universitet/Institutionen för fysikAbstract : The emergence of the eukaryotic cell was one of the key events that paved the path to the vast variety of complex life visible all around us. A pivotal event in the process of eukaryogenesis was an endosymbiosis of two prokaryotic cells which in time resulted in the mitochondria. READ MORE
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2. The effect of imperfect resource conversion and recurring perturbations on byproduct cross- feeding chains in digital communities
University essay from Linköpings universitet/Institutionen för fysik, kemi och biologiAbstract : The gut microbiome plays a vital role in human health. Disturbances of this microbial system is associated with diseases such as obesity and inflammatory bowel disease. In populations of microbial species, many organisms partake in byproduct cross-feeding interactions, where byproducts from one organism are consumed by other microbes. READ MORE
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3. Effects of recurring perturbations on byproduct cross-feeding chain lengths in a digital microbiome
University essay from Linköpings universitet/Institutionen för fysik, kemi och biologiAbstract : The human gut microbiome is a complex ecosystem with hundreds of species interacting with each other and the host. One function of the microbiome is to break down undigested nutrients into smaller nutrients, sometimes available for uptake by the host. READ MORE
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4. Recurring perturbations limit the length of byproduct cross-feeding chains in digital communities
University essay from Linköpings universitet/Institutionen för fysik, kemi och biologiAbstract : The human gut microbiome is important for health and development, and understanding its functioning and dynamics are of great medical importance. The microbiome food web is largely characterized by chains of byproduct cross-feeding (where metabolites of one organism are used as nutrients for another), yet a recent study have shown that the average length of the chains are considerably shorter than what metabolic capabilities of present species allow for. READ MORE
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5. From pair-wise interactions to triplet dynamics
University essay fromAbstract : The present thesis investigates the properties of a system of ordinary di_erential equations, that describes cross-feeding in two- and three-species systems of bacteria. The system is studied statistically and the probability of permanence | a stable state where no species is driven extinct | is computed under the assumption that the energy-uptake parameters of the system are either independent or organised in a hierarchy where any excreted metabolites carry less energy than previous nutrients. READ MORE
