Professor Andy Weightman

Professor Andy Weightman

Head of Organisms and Environment Division, Professor

School of Biosciences

+44 (0)29 2087 5877
+44 (0)29 2087 4305
Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX

Microbiomes, Microbes and Informatics

The Weightman group is part of the recently formed Microbiomes, Microbes and Informatics (MMI) group (webpage underdevelopment). The MMI group currently comprises the research groups of Thomas Connor, Esh Mahenthiralingam, Julian Marchesi and Andrew Weightman, and has over 25 active research staff and postgraduate students.

The MMI group are highly research active generating over £3.5 million in grant income between 2010 and 2017, and publishing extensively in top journals (cumulative h index > 150, > 400 publications, and > 25,000; source

The four current MMI staff recently moved (June 2017) to a single shared location within a new £1.6 million refurbished area of the Sir Martin Evans Building. This comprises a large class II certified research laboratory, equipment and tissue culture rooms, a group office area and academic offices. The MMI group welcomes approaches by potential fellowship applicants and funded PhD students to host their research and expand our strategic research on Microbiomes, Microbes and Informatics.


  • The Deep Sub-Seafloor Biosphere – adaptations to an extreme environment (EC, NERC)
  • Aquatic microbial metagenomics and biogeochemical cycles (NERC)
  • Adaptation of ecosystems to aliphatic organohalogens and the evolution of bacterial xenobiotic-degrading enzymes (NERC, AstraZeneca, Wellcome Trust)
  • Tackling the problem of 16S rRNA chimeras through analysis of sequence regularity – a software solution (BBSRC)
  • Development of a recA gene based identification approach for the entire Burkholderia genus (NERC)
  • Studying prokaryotic diversity and interactions in deep terrestrial sediments (Leverhulme Trust).
  • Microbial adaptation to degradation of natural and synthetic organohalogens: effects on ecosystem acclimation and natural bioremediation of polluted sites (EC)
  • Do deep marine sediment layers contain uniquely adapted physiological types of anaerobic bacteria? (NERC)
  • Microbial activity and diversity measurements as tools for improved evaluation of the environmental risks posed by contaminated soil and sediments (ICI/NERC)

Research group members

Affiliated staff

  • Dr Kevin Ashelford
  • Dr Louise O'Sullivan
  • Dr Gerard Selleck

PhD Students

  • Mark Leggett
  • Judith White
  • Chloe Heywood
  • Julia Sas
  • Emily Flowers
  • Falko Matthes
  • Kwestan Ahmad