Doctor Agnieszka Wujeska-Klause

Agnieszka Wujeska KlauseI joined the Hawkesbury Institute for the Environment as a Postdoctoral Research Fellow in Plant Biochemistry and Ecophysiology in September 2016, to work with Prof David Ellsworth and A/Prof Oula Ghannoum at the EucFACE facility. The project will investigate photosynthetic responses of Eucalyptus tereticornis trees under elevated CO2, with a specific focus on changes to and partitioning of the nitrogen pool within the canopy.

My research interests include plant responses to climate change, such as responses to atmospheric pollution (tropospheric O3), drought stress, heatwave and elevated CO2.

I started my research experience working on growth responses of several bio-indicators such as Nicotiana tabacum (Bel B, Bel W3), Phaseolus vulgaris L. and Petunia×hybrida to tropospheric ozone. This work was done under the supervision of Dr Klaudia Borowiak at the University of Life Sciences in Poznan (Poland).

I was awarded a PhD Degree at the University of Melbourne, School of Ecosystem and Forest Sciences in July 2015 under the supervision of Prof Michael Tausz and Prof Gerd Bossinger. In my thesis entitled "Antioxidant responses to drought and heatwave as markers for climate stress and adaptation", I investigated physiological and biochemical responses to stress of Acacia and Eucalyptus species adapted to contrasting habitats. I was particularly interested in the antioxidative and photoprotective defence system responses in young seedlings of Australian tree species under drought or heatwave conditions.

Areas of research

Climate change, plant ecophysiology and biochemistry, photosynthesis, photochemistry, plant defence systems (antioxidants), reactive oxygen species, chlorophyll fluorescence, heatwaves and drought stress, elevated CO2, tropospheric O3.

Awards and recognition
  • SF Ponds Travelling Scholarship
  • Melbourne Abroad Travelling Scholarship (MATS)
  • Melbourne International Research Scholarship (MIRS)
  • Melbourne International Fee Remission (MIFR)
Selected publications

Crous KY, Wujeska-Klause A, Jiang MK, Medlyn BE, Ellsworth DS, (2019) 'Nitrogen and Phosphorus Retranslocation of Leaves and Stemwood in a Mature Eucalyptus Forest Exposed to 5 Years of Elevated CO2', Frontiers in Plant Science, vol.10, Article no.664

Wujeska-Klause A, Crous KY, Ghannoum O, Ellsworth DS, (2019) 'Leaf age and eCO2 both influence photosynthesis by increasing light harvesting in mature Eucalyptus tereticornis at EucFACE', Environmental and Experimental Botany, vol.167, Article no.103857

Wujeska-Klause A, Crous KY, Ghannoum O, Ellsworth DS, (2019) 'Lower photorespiration in elevated CO2 reduces leaf N concentrations in mature Eucalyptus trees in the field', Global Change Biology, vol.25, no.4, pp 1282-1295

Wujeska-Klause A, Bossinger G, Tausz M, (2016) 'The concentration of ascorbic acid and glutathione in thirteen provenances of Acacia melanoxylon', Tree Physiology, vol.36, no.4, pp 524-532

Wujeska-Klause A, Bossinger G, Tausz M, (2015) 'Responses to heatwaves of gas exchange, chlorophyll fluorescence and antioxidants ascorbic acid and glutathione in congeneric pairs of Acacia and Eucalyptus species from relatively cooler and warmer climates', Trees, vol.29, no.6, pp 1929-1941

Wujeska-Klause A, Bossinger G, Tausz M, (2015) 'Seedlings of two Acacia species from contrasting habitats show different photoprotective and antioxidative responses to drought and heatwaves', Annals of Forest Science, vol.72, no.4, pp 403-414

Wujeska A, Bossinger G, Tausz M, (2013) 'Responses of foliar antioxidative and photoprotective defence systems of trees to drought: a meta-analysis', Tree Physiology, vol.33, no.10, pp 1018-1029

Borowiak K, Wujeska A, (2012) 'Effect of tropospheric ozone on morphological characteristics of Nicotiana tabacum L., Phaseolus vulgaris L. and Petunia×Hybrida L. in ambient air conditions', Acta Biologica Hungarica, vol.63, no.1, pp 67-80