PhD Studentship: Understanding How Production of Dimethylsulfoniopropionate by Plants Affects Global Sulfur Cycling

Scientific background 

Billions of tonnes of the organosulfur compound dimethylsulfoniopropionate (DMSP) are made each year by marine algae, corals and bacteria. DMSP is a key marine nutrient pivotal in global sulfur cycling, as it is the main precursor of the climate-active gas dimethylsulfide (DMS), which gives the seaside its distinctive smell. Some plant species also make DMSP, and, although DMSP is established as an anti-stress molecule in marine algae and bacteria, its role in plants is less well understood. DMSP production is thought to allow plants to tolerate conditions associated with growing in stressful environments, e.g. the coast. Some plants produce DMSP at very high levels, including the cordgrass Spartina, which is reported to be the major DMSP producer in saltmarshes that are global hotspots for DMSP/DMS production. Using Spartina, we have recently discovered the first genes responsible for DMSP production in plants. Determining the overall contribution of plants to DMSP/DMS production is key to understand sulfur cycling in the natural environment. 

Research methodology 

In this project, we will explore how DMSP produced by plants affects their growth and survival in the natural environment. You will evaluate DMSP production in plants grown under different environmental conditions using established analytical techniques, e.g. gas chromatography. You will also build on our recent work identifying DMSP synthesis genes and test how manipulation of these genes can be used to alter DMSP levels in plants. 

Training 

This multi-disciplinary project will offer the student excellent training opportunities in plant biology (including plant physiology and stress biology), bioinformatics, and the molecular biology and biochemistry of DMSP/DMS. Furthermore, you will receive training in data analysis and manuscript preparation, whilst also having regular opportunities to present their work at national and international meetings.  

Entry Requirements

The minimum entry requirement is 2:1 in a Bachelor’s degree in Biological Sciences, Molecular Biology, Biochemistry, Plant Sciences, Environmental Sciences, Natural Sciences.

Start Date: 1 October 2025

Funding Details

Additional Funding Information

ARIES is awaiting confirmation of funding under the BBSRC-NERC DLA award scheme, which is expected shortly. Funding for this studentship is subject to this confirmation and UKRI terms and conditions. Successful candidates who meet UKRI’s eligibility criteria will be awarded a fully-funded ARIES studentship of fees, maintenance stipend (£19,237 p.a. for 2024/25) and research costs.

A limited number of ARIES studentships are available to International applicants. Please note however that ARIES funding does not cover additional costs associated with relocation to, and living in, the UK.

ARIES is committed to equality, diversity, widening participation and inclusion in all areas of its operation. We encourage applications from all sections of the community regardless of gender, ethnicity, disability, age, sexual orientation, and transgender status. Projects have been developed with consideration of a safe, inclusive, and appropriate research and fieldwork environment. Academic qualifications are considered alongside non-academic experience, with equal weighting given to experience and potential.

For further information, please visit www.aries-dtp.ac.uk

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