PhD Studentship - Investigating Genetic Markers and Mechanisms of CO Dehydrogenase Regulation in Response to Atmospheric Mercury.

Primary supervisor - Dr Marcela Hernandez-Garcia

Scientific Background

Volcanic emissions are a natural source of mercury (Hg) to the atmosphere and Mt. Etna is a major natural source of Hg to the Mediterranean region. Previous research has shown that Hg deposited on the low pH and organic-poor soils of Etna's south-eastern flank may not be retained but instead released to groundwater or re-emitted to the atmosphere, indicating that the deposition of volcanic Hg has clear environmental impacts. The potential for Hg to disrupt local ecosystems is particularly concerning, as it may alter microbial activity, including their capability to oxidise trace gases such as carbon monoxide (CO), also abundant at Etna volcano. This plays a crucial role in atmospheric chemistry and climate regulation. In this project, you will investigate if Hg affects the microbial communities and specifically their capability to oxidise trace gases, such as CO.

The project

You will be answering these key questions: 1) How do bacterial communities in recently formed soils from Mt Etna utilise CO, and what specific metabolic pathways are involved? and 2) Does exposure to mercury influence the expression and activity of the CO-dehydrogenase enzyme in bacteria isolated from Mt. Etna soils?

To answer these questions, you will join sampling campaigns at Mt. Etna followed by soil incubations and trace-gas measurements. You will be trained in cutting-edge tools for isolation of microbes, including whole genome sequencing, proteomics, and metagenomics.

Training

Specific training will include: the cultivation of soil bacteria; quantitative PCR; high-throughput sequencing and proteomics. You will present results at weekly lab meetings, departmental seminars, and at national and international conferences.

Person specification

We are looking for a pro-active, highly motivated student willing to join sampling campaigns at Etna Volcano. The candidate should have a strong background in microbiology, biochemistry, soil or environmental sciences (BSc/Masters in Soil Microbiology, Environmental Microbiology, or similar).

The Norwich Research Park Biosciences Doctoral Training Programme (NRPDTP) is offering fully funded studentships for October 2026 entry. The programme offers postgraduates the opportunity to undertake a 4-year PhD research project whilst enhancing professional development and research skills through a comprehensive training programme. You will join a vibrant community of world-leading researchers. All NRPDTP students undertake a three-month professional internship placement (PIPS) during their study. The placement offers exciting and invaluable work experience designed to enhance professional development. Full support and advice will be provided by our Professional Internship team.

This project has been shortlisted for funding by the NRPDTP. Shortlisted applicants will be interviewed on 3,4 or 5 February 2026.

Visit our website for further information on eligibility and how to apply: https://biodtp.norwichresearchpark.ac.uk/.

Entry requirements

At least UK equivalence Bachelors (Honours) 2:1. English Language requirement (Faculty of Science equivalent: IELTS 6.5 overall, 6 in each category). 

Mode of study

Full time

Start date

1 October 2026

Funding Information: 

This project is awarded with a 4-year Norwich Research Park Biosciences Doctoral Training Partnership PhD CASE studentship with Inspiralis Limited. The studentship includes payment of tuition fees (directly to the University), a stipend to cover living expenses (2025/6 stipend rate: £20,780), and a Research Training Support Grant of £5,000pa for each year of the studentship.

Closing Date: 02/12/2026

Please complete your application via the ‘Apply’ button above.

Advert information