Dr Annette Ryan

Area Safety Officer, Laboratory Manager

Research Overview

My research background includes three years working in the Antarctic as a Meteorologist and Physicist, a PhD in Biosphere-Atmosphere Interactions, and six years working as a Senior Research Associate investigating plant responses to oxidative stress and how efficiently cereal crops use water and alter transpiration in response to changing atmospheric vapour pressure deficit. I now manage the Soils and Ecosystem Ecology Research Laboratory at Lancaster University, supporting the research of six Professors and Lecturers, and approximately 50 research staff and students. The group focuses upon plant-soil interactions, soil and ecosystem biogeochemistry, macronutrient cycles and greenhouse gas emissions. Facilities and techniques available include analysis of C, N and P, PLFA and enzyme assays, raw fibre analysis, plant and soil respiration, greenhouse gas analysis and soil density fractionation. The lab also has a range of field equipment including infra-red gas analysers, soil moisture meters and soil respiration and photosynthesis chambers. My interests lie in exploring new methodological techniques and analysis to enhance the capabilities of the research group.

Selected Publications

Gravimetric phenotyping of whole plant transpiration responses to atmospheric vapour pressure deficit identifies genotypic variation in water use efficiency
Ryan, A., Dodd, I.C., Rothwell, S.A., Jones, R.J.G., Tardieu, F., Draye, X., Davies, W.J. 10/2016 In: Plant Science. 251, p. 101-109. 9 p.
Journal article

Isoprene emission protects photosynthesis but reduces plant productivity during drought in transgenic tobacco (Nicotiana tabacum) plants
Ryan, A., Hewitt, C.N., Purnell, A., Possell, M., Vickers, C., Mullineaux, P., Davies, B., Dodd, I. 01/2014 In: New Phytologist. 201, 1, p. 205-216. 12 p.
Journal article

World War II contrails: a case study of aviation-induced cloudiness
Ryan, A.C., MacKenzie, A.R., Watkins, S., Timmis, R. 09/2012 In: International Journal of Climatology. 32, 11, p. 1745-1753. 9 p.
Journal article

Defining hybrid poplar (Populus deltoides x Populus trichocarpa) tolerance to ozone: identifying key parameters
Ryan, A., Cojocariu, C., Possell, M., Davies, B., Hewitt, N. 01/2009 In: Plant, Cell and Environment. 32, 1, p. 31-45. 15 p.
Journal article

Ground-level ozone influenced by circadian control of isoprene emissions
Hewitt, C.N., Ashworth, K., Boynard, A., Guenther, A., Langford, B., MacKenzie, A.R., Misztal, P.K., Nemitz, E., Owen, S.M., Possell, M., Pugh, T.A.M., Ryan, A.C., Wild, O. 10/2011 In: Nature Geoscience. 4, 10, p. 671-674. 4 p.
Journal article

  • Improving global stewardship