Project description:Investigation of the Transformation Performance from Heterotrophic Denitrification, Mixotrophic Denitrification, and Autotrophic Denitrification to Anammox of a UASB Reactor
Project description:Roothans et al., analyzed heterotrophic denitrification processes that can be an important source of nitrous oxide. We employed planktonic nitrification-inhibited denitrifying enrichment cultures under alternating oxic-anoxic conditions. The dynamic conditions resulted in a general presence of the denitrifying enzymes. Overall, we show that aerobic denitrification should not be neglected as an ecologically relevant process. Contact author: m.laureni@tudelft.nl
Project description:For the filamentous cyanobacterium Anabaena variabilis to grow without combined nitrogen, certain cells differentiate into heterocysts that fix N2, while vegetative cells perform photosynthesis. Much remains unknown on how heterocysts differ from vegetative cells in terms of carbon and energy metabolisms. Microarrays were used to investigate gene transcription patterns in vegetative cells, heterocysts, and filaments of N2-fixing phototrophic, mixotrophic, and heterotrophic cultures.
Project description:In order to unravel the role of regulation on transcript level in the central carbohydrate metabolism (CCM) of Thermoproteus tenax (glycolytic/gluconeogenic carbon switch), the focused DNA microarray was constructed by using ORFs supposed to be involved in the CCM pathways. Transcriptional profiling was performed comparing autotrophic growth on CO2/H2 versus heterotrophic growth on glucose.
Project description:GC-MS analysis of metabolome of Chlamydomonas reinhardtii cells changing during batch culture development under autotrophic and mixotrophic conditions.
