I am unit coordinator and lecturer for 1st year courses
'Biomolecules, Cells and Microorganisms' (1st year)
'Microbiology' (2nd year)
I also teach on the 3rd year units
'Advanced Professional Skills'
I am an aquatic scientist with a particular interest in microbial biology and ecology, including the potential of algae for the production of high-value products and pollution restoration, and the effect of nutrient and metal stress on algal physiology. I also carry out research on other aspects of aquatic biology, including the impact and bioremediation of acid mine drainage, and the study of invertebrate community responses to river pollution.
My research is both field and lab-based and is highly interdisciplinary, with approaches that include classical field ecology, molecular biology, metabolomics and genetic modification. I aim to study molecular and physiological processes in the laboratory and apply the insights gained to understand the effect of environmental stress on ecosystem function.
Current research is centred around the following areas:
This is my core research theme, and centres around the effect of environmental stressors, particularly nutrient and metal stress, on algal physiology. I also study the potential of algae for bioremediation of pollutant waste streams, and as producers of high-value bio-products. This research strand involves identifying and characterising algal strains obtained from extreme habitats and screening them for physiological and biochemical characteristics that have potential for biotechnological applications using techniques including FTIR spectroscopy, LC-MS and GC-MS.
Bacterial Populations wetlands receiving Acid Mine Drainage
My research in this field centres around the role that wetlands can provide in remediating acidic mine drainage, and has shown that a natural wetland receiving AMD significantly reduced water acidity and toxic metal levels leading to improved downstream water quality. Current research uses Illumina© high- throughput 16S rRNA amplicon sequencing to characterise the microbial communities across the wetland to help identify the mechanisms by which this remediation occurs.
The effect of pollution on river invertebrates
This research relates to the effect of pollution on aquatic invertebrates, particularly the relationship between benthic invertebrate community structure and environmental factors. I am currently looking into long term spatial and temporal changes in community structure within AMD contaminated rivers to study the effect of AMD on biodiversity. A related research area investigates metal pollution induced cytogenetic changes in aquatic fly larvae.
A. Ibuot, AP. Dean, OA. McIntosh, JK. Pittman (2017). Metal bioremediation by CrMTP4 over-expressing Chlamydomonas reinhardtii in comparison to natural wastewater-tolerant microalgae strains. Algal Research. 24, pp.89-96.
AK. Bajhaiya, AP. Dean, LAH. Zeef, RE. Webster, JK. Pittman (2016). PSR1 is a global transcriptional regulator of phosphorus deficiency responses and carbon storage metabolism in Chlamydomonas reinhardtii. Plant Physiology. 170(3), pp.1216-1234.
AK. Bajhaiya, AP. Dean, T. Driver, DK. Trivedi, NJW. Rattray, et al. (2016). High-throughput metabolic screening of microalgae genetic variation in response to nutrient limitation. Metabolomics. 12(1), pp.1-14.
A. Dean, J. Pittman (2015). Lipids from algae: Novel applications and powerful quantification methods. International News on Fats, Oils and Related Materials. 26(1), pp.14-17.
T. Driver, AK. Bajhaiya, JW. Allwood, R. Goodacre, JK. Pittman, et al. (2015). Metabolic responses of eukaryotic microalgae to environmental stress limit the ability of FT-IR spectroscopy for species identification. Algal Research. 11, pp.148-155.
P. Michailova, J. Ilkova, AP. Dean, KN. White (2015). Cytogenetic index and functional genome alterations in Chironomus piger Strenzke (Diptera, Chironomidae) in the assessment of sediment pollution: A case study of Bulgarian and UK rivers. Ecotoxicology and Environmental Safety. 111, pp.220-227.
P. Michailova, A. Kownacki, O. Woznicka, KN. White, AP. Dean, et al. (2014). Macropelopia nebulosa group (Diptera, Chironomidae, Tanypodinae) - karyotype and morphology of larva and pupae. Zootaxa. 3852(1), pp.083-100.
J. McTeer, AP. Dean, KN. White, JK. Pittman (2014). Bioaccumulation of silver nanoparticles into Daphnia magna from a freshwater algal diet and the impact of phosphate availability. Nanotoxicology. 8(3), pp.305-316.
AP. Dean, JK. Pittman, DC. Sigee (2014). From lake ecology to biofuels-applications of fourier transform infrared spectroscopy to algal research. Spectroscopy Europe. 26(1), pp.14-17.
O. Osundeko, AP. Dean, H. Davies, JK. Pittman (2014). Acclimation of microalgae to wastewater environments involves increased oxidative stress tolerance activity. Plant and Cell Physiology. 55(10), pp.1848-1857.
AP. Dean, S. Lynch, P. Rowland, BD. Toft, JK. Pittman, et al. (2013). Natural wetlands are efficient at providing long-term metal remediation of freshwater systems polluted by acid mine drainage. Environmental Science and Technology. 47(21), pp.12029-12036.
AP. Dean, JM. Nicholson, DC. Sigee (2012). Changing patterns of carbon allocation in lake phytoplankton: An FTIR analysis. Hydrobiologia. 684(1), pp.109-127.
RE. Webster, AP. Dean, JK. Pittman (2011). Cadmium exposure and phosphorus limitation increases metal content in the freshwater alga chlamydomonas reinhardtii. Environmental Science and Technology. 45(17), pp.7489-7496.
JK. Pittman, AP. Dean, O. Osundeko (2011). The potential of sustainable algal biofuel production using wastewater resources. Bioresource Technology. 102(1), pp.17-25.
AP. Dean, DC. Sigee, B. Estrada, JK. Pittman (2010). Using FTIR spectroscopy for rapid determination of lipid accumulation in response to nitrogen limitation in freshwater microalgae. Bioresource Technology. 101(12), pp.4499-4507.
AP. Dean, JM. Nicholson, DC. Sigee (2008). Impact of phosphorus quota and growth phase on carbon allocation in Chlamydomonas reinhardtii: An FTIR microspectroscopy study. European Journal of Phycology. 43(4), pp.345-354.
JW. Hunt, AP. Dean, RE. Webster, GN. Johnson, AR. Ennos (2008). A novel mechanism by which silica defends grasses against herbivory. Annals of Botany. 102(4), pp.653-656.
AP. Dean, B. Estrada, JM. Nicholson, DC. Sigee (2008). Molecular response of Anabaena flos-aquae to differing concentrations of phosphorus: A combined Fourier transform infrared and X-ray microanalytical study. Phycological Research. 56(3), pp.193-201.
DC. Sigee, F. Bahrami, B. Estrada, RE. Webster, AP. Dean (2007). The influence of phosphorus availability on carbon allocation and P quota in Scenedesmus subspicatus: A synchrotron-based FTIR analysis. Phycologia. 46(5), pp.583-592.
DC. Sigee, A. Selwyn, P. Gallois, AP. Dean (2007). Patterns of cell death in freshwater colonial cyanobacteria during the late summer bloom. Phycologia. 46(3), pp.284-292.
AP. Dean, MC. Martin, DC. Sigee (2007). Resolution of codominant phytoplankton species in a eutrophic lake using synchrotron-based Fourier transform infrared spectroscopy. Phycologia. 46(2), pp.151-159.
AP. Dean, DC. Sigee (2006). Molecular heterogeneity in Aphanizomenon flos-aquae and Anabaena flos-aquae (Cyanophyta): A synchrotron-based Fourier-transform infrared study of lake micropopulations. European Journal of Phycology. 41(2), pp.201-212.
DC. Sigee, A. Dean, E. Levado, MJ. Tobin (2002). Fourier-transform infrared spectroscopy of Pediastrum duplex: Characterization of a micro-population isolated from a eutrophic lake. European Journal of Phycology. 37(1), pp.19-26.
Peer reviewer for papers in the field of ecology and biotechnology for journals including Journal of Environmental Management, Hydrobiologia, Metabolomics, Fuel, Energies, Biomass and Bioenergy, GCB Bioenergy, Biosystems Engineering and Science of the Total Environment