1. PhD (Molecular Microbiology)- Lincoln University, New Zealand (NZ)
  2. BSc (Hons) Biotechnology- University of Sunderland, United Kingdom (UK)

Teaching & Research Experience:

  • Lecturer- School of Biological Sciences, QIUP ( March 2016-present)
  • Tutor & laboratory demonstrator for Plant Science, Biometrics and Bioexperimentation modules (Casual), Faculty of Agriculture & Life Sciences, Lincoln University, New Zealand (March 2011- Feb 2015)


  • Phylogenetic analyses of rhizobial housekeeping and symbiosis genes
  • Plant nitrogen (N) nutrition of legumes (15N natural abundance, 15N isotope dilution)
  • Rhizobial tolerance to environmental stress
  • Mechanism of action of plant growth promoting bacterium on barley
  • Effect of biofertilisers on dry matter production of vegetables under different external [N]
  • Molecular identification of fruit flies via cytochrome C subunit I (COI) gene sequence

Research Areas of Interest:
Plant-microbial interactions (particularly on plant growth promotion via N2 fixation, phytopathogen inhibition and hormone production); plant invasion ecology; phylogenetics; biofertilisers


Selected Publications
  • Sheu, S. -Y., Chen, M. -H., Liu, W. Y. Y., Andrews, M., James, E. K., Ardley, J. K., De Meyer, S. E., James, T. K., Howieson, J. G., Coutinho, B. G., & Chen, W. –M. (2015). Burkholderia dipogonis nov., isolated from root nodules of Dipogon lignosus in New Zealand and Western Australia. International Journal of Systematic and Evolutionary Microbiology, 65, 4716-4723.
  • Wigley, K., Liu, W. Y. Y., Khumalo, Q., Moot, D. J., Brown, D. S., & Ridgway, H. J. (2015). Effectiveness of three inoculation methods for lucerne (Medicago sativa ) in two Canterbury soils. New Zealand Journal of Agricultural Research, 58(3), 292-301.
  • Liu, W. Y. Y., Ridgway, H. J., James, T. K., James, E. K., Chen, W. M., Sprent, J. I., Young, J. P. W., & Andrews, M. (2014). Burkholderia Induces Functional Nodules on the South African Invasive Legume Dipogon lignosus (Phaseoleae) in New Zealand Soils. Microbial Ecology, 68, 542-555.
  • Liu, W. Y. Y., Ridgway, H. J., James, T. K., Premaratne, M., & Andrews, M. (2012). Characterisation of rhizobia nodulating Galega officinalis (goat's rue) and Hedysarum coronarium (sulla). New Zealand Plant Protection, 65, 192-196.
  • Liu, W. Y. Y., Williams, L., Carter, N., & Andrews, M. (2009). The mechanisms of action of the cereal growth promoting Rhizobium radiobacter strain 204: an assessment. Aspects of Applied Biology, 98, 183-188.

Liu, W. Y. Y., Ridgway, H., James, T., Larsen, S., & Andrews, M. (2014) The South African invasive legume Dipogon lignosus has brought Burkholderia rhizobial symbionts into New Zealand. Trilepidea, 126, 7. Retrieved from http://www.nzpcn.org.nz/publications/Trilepidea-126-140529.pdf