PETROU LAB
Algal ecophysiology in a changing world
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Emperor penguin, Antarctica (2014)
Heron Island, Australia (2015)
Iceberg Alley, Antarctica (2015)
Acropora sp., Heron Island, Australia.
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Research areas...
Microalgal ecophysiology in a changing environment
T his research area involves understanding microalgal physiology, photobiology and biochemistry in response to environmental perturbations. In particular, the aim is to understand microalgal responses to warmer temperatures and CO2 at the subcellular, species and community level and link those changes with ecosystem impacts.

Current projects: Diatom silicification in a future ocean |Ocean alkalinity enhancement: benthic and pelagic impacts (including OAEPIIP) |Uncovering the hidden world of NIR-cyanobacteria| Primary production and macromolecular composition of Polar microalgae

Past projects: Acidification of the Southern Ocean: Effects on marine microbes

Phytoplankton sulfur biogeochemistry and marine microbial interactions
T his research investigates the role of dimethylsulfoniopropionate (DMSP) in the chemical landscape of the ocean. Specifically, we investigate the role of DMSP in cell physiology and lower trophic interactions, including how the phytoplankton through DMSP production influences bacterial communities and biogeochemistry.
Current projects:DMSP uptake by marine microalgae: its cellular role and ecological implications

Past projects: The role of DMSP in coral stress physiology | Characterising microbial interactions that drive organic sulfur cycling in Antarctic waters | Social Networking in a Changing Ocean: Microbial-Scale Ecological Interactions Control Ocean-Scale Chemistry |

Marine microalgal symbioses (host-symbiont interactions)
U tilising single cell methods such as epifluorescence confocal microscopy, microscope fluorometry and infra-red microspectroscopy, this work examines the physiological and biochemical responses that occur at the cellular scale in corals and foraminifera.

Current projects: Profiling the Reef: towards a biomolecular fingerprint of climate change in corals |Coral bleaching from a single cell perspective |Plant-like solar tracking in a photosymbiotic animal |Social networks: Marine symbioses in coral reef systems

Past projects: Host mediated symbiont regulation in the foraminifera Marginopora vertebralis | Coral explants: A model organism for coral studies | Biomolecular profiling of coral symbionts under bleaching stress conditions | Coral host and symbiont proteome under thermal stress.