Associate Professor Oula Ghannoum graduated with a BSc (Honours) in Plant Biochemistry (UNSW, 1993) and obtained her PhD in Plant Physiology (WSU, 1998). She has >20 years of research experience in plant physiology and biochemistry. In 2001, Oula was awarded the prestigious ARC Postdoctoral Fellowship to work at RSBS, ANU, and in 2007, she was awarded an Independent Postdoctoral Fellowship at WSU. In 2010, Oula was appointed Senior Researcher at the Hawkesbury Institute for the Environment (HIE). She was promoted to Associate Professor in 2016.
Her current position includes the following academic and leadership roles:
- Discipline Lead, Biological Sciences, Western Sydney University
- Member of Professoriate Leadership Group, Western Sydney University
- Associate Editor, Functional Plant Biology, CSIRO Publishing (2014-current)
- Associate Editor, Annals of Botany, Oxford University Press (2021-current)
- Node Leader/Deputy Program leader, ARC Centre of Excellence for Translational Photosynthesis, (opens in a new window) CoETP
- Activity Leader (Program 2), Future Food Systems CRC, FFS-CRC (opens in a new window)
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Awards and Recognition
- 2014: Women in Research Leadership Program, Western Sydney University, $5,400
- 2011: VC Staff Development Award, Western Sydney University, $2,500
- 1998: Christine Wieneke New Researcher Award, Western Sydney University, $3,000
- 1998: Visiting Fellowship, Japanese Science and Technology, $8,000
- Unit Coordinator, Plant Science (301272), Level 3, Undergraduate
- Unit Coordinator, Plant-Climate Interactions in Controlled Environments (301357), Level 7, Diploma/Masters
- Deputy Coordinator, Master of Research (MRes), HIE-WSU
- Member, HDR committee, HIE, WSU
- Photosynthesis (C4 photosynthesis, sugar signalling, water use efficiency, crop improvement)
- Plant responses to the environment (global climate change)
- Protected cropping (optimisation of yield potential and quality in vegetables and soft fruits)
Associate Professor Oula Ghannoum conducts research to advance the disciplines of ‘Photosynthesis’ and ‘Global Change Biology’. Oula is particularly passionate about developing innovative solutions for the two key challenges of the 21st Century; ‘Food Security’ and ‘Climate Change’.
Her research aims at discovering novel ways to improve crop yield by enhancing photosynthesis either directly or indirectly through feedback regulation. Her research group is genetically manipulating key sugar signalling pathways in source leaves of model C3 and C4 plants to elucidate how sugar perception regulates leaf photosynthesis and crop yield and quality. Her group is also exploring novel ways to improve water use efficiency and heat and drought tolerance of major cereal crops through improved understanding of leaf structure. This research underpins the global efforts aimed at closing the gap between current rates of food production and increasing global food demand.
Oula is utilising state-of-the-art smart-glasshouse technology to implement improved approaches for growing more nutritious vegetable crops with less energy, water and chemical input. This research aims at developing an innovative framework for using hyper-spectral imaging and machine learning to offer consumers new and high value vegetable varieties with certified quality assurance. This research will help transform the landscape of protected vegetable cropping in Australia.
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Supervision and Mentoring
Students who are passionate about Plant Biology can contact me if they are interested in pursuing a master or PhD research project on a topic aligned with my three research areas outlined above. Students with their own ideas about a related research field are also welcome. Visit the Graduate Research School (GRS) (opens in a new window) for information on conditions of admission and currently funded research projects.
- 2021-2024: Dr Lily Chen, Research Fellow (ARCDP). Regulation of C4 photosynthesis by sugar sensing.
- 2016-2020: Dr Francisco Javier Cano Martín, Research Fellow (CoETP). Water use efficiency in C4 plants
- 2016-2017: Dr Christie Foster, Research Fellow (CoETP). Structure and function of pigment-protein complexes of C4 chloroplasts
- 2015-2019: Dr Alex Watson-Lazowski, Research Fellow (CoETP). Expression and isoform variation between C4 species in key photosynthetic genes
- 2015-2018: Dr Clémence Henry, Research Fellow (CoETP). Regulation of C4 photosynthesis by sugar sensing.
- 2010-2014: Dr Robert Sharwood, Research Fellow (WSU). Catalytic diversity of Rubisco in C4 plants
- 2014-2019: Ms Fiona Koller, Technical Officer (CoETP)
- 2015: Ms Samantha Prior, Technical Officer (CoETP)
- Eranda Namal Jayasuriya (PhD, 2021-2024). Develop crop-based sensors for real-time monitoring and control under protected cropping. Supervisors: Ghannoum, Guo and He
- Yogesh Chaudhari (PhD, 2017-2021). Interplay between sugar sensing and C4 photosynthesis. Supervisors: Ghannoum and Furbank
- Xin He (2018-ongoing). Fruit development and quality of Capsicum annuum under Smart Glass and elevated CO2. Supervisors: Tissue, Chen, Ghannoum and Cazzonelli
- Urs Benning (PhD, 2017-2021). Comparative sugar sensing pathways in C3 and C4 plants. Supervisors: Ghannoum, Watson-Lazowski, Henry and Furbank
- Yazen Al-Salman (PhD, 2017-2020). Determinants of leaf water use efficiency in the C4 crop Sorghum bicolor. Supervisors: Ghannoum and Cano
- Walter Krystler Israel (PhD, graduated 2020). Carbon isotope discrimination and stomatal function in C4 grasses. Supervisors: Ghannoum, Chen and William-Stuart
- Julius Ver Sagun (PhD, graduated 2019). Environmental regulation of energetics of C4 photosynthesis. Supervisors: Ghannoum and Chow
- Sachin Chavan (PhD, graduated 2019): Responses of wheat photosynthesis and yield to elevated CO2 under heat and water stress. Supervisors: Ghannoum and Duursma.
- Varsha Pathare (PhD, graduated 2018): Grass and herb photosynthesis and productivity in a resource-limited Eucalyptus woodland. Supervisors: Ellsworth and Ghannoum
- Balasaheb Sonawane (PhD, graduated 2016): Environmental regulation of CO2 concentrating mechanisms in C4 grasses with different biochemical subtypes. Supervisors: Ghannoum, Sharwood and Whitney.
- Josephine Ontedhu (PhD, graduated 2015): Interactive effects of elevated carbon dioxide concentration, temperature and soil P on growth and physiology of eucalypts. Supervisors: Tissue, Ghannoum and Milham
- Harshini Pinto (PhD, graduated 2015): Resource use efficiency of C4 grasses with different evolutionary origins. Supervisors: Ghannoum, Tissue, Sharwood and Conroy.
- Simon Reeves (Honours, graduated 2013): Contrasting the effect of climate warming on the photosynthesis of Eucalyptus provenances. Supervisos: Sharwood and Ghannoum.
- Anthony Newton (Honours, graduated 2012): Investigating the molecular plasticity of C4 photosynthesis. Supervisors: Sharwood and Ghannoum.
- Gyro Sherwin (Honours, graduated 2011): Impact of industrial-age climate change on nitrogen uptake and partitioning in Eucalyptus. Supervisors: Ghannoum, George, Kannangara, Tissue
- Harshini Pinto (Honours, graduated 2010): Resource use efficiency of C4 grasses with different evolutionary origins. Supervisors: Tissue and Ghannoum
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- 2021: CI Grant, ARC CoE for Translational Photosynthesis, $60,000
Improving crop productivity by altering sugar sensing.
Investigators: Ghannoum O, Furbank RT
- 2021– 2023: ARC Discovery, $468,000 - DP210102730
Can altered sugar sensing improve crop productivity? ARCDP21
Investigators: O Ghannoum, RT Furbank, MJ Paul
- 2020 – 2025: Future Food Systems Ltd. CRC (FFS-CRC), $1M
IoT for Indoor Farming
Investigators: A/Prof Wen Wu (UNSW), Jun Young Kim (WBS Technology), A/Prof Oula Ghannoum (WSU)
- 2020: Agility Grant, ARC CoE for Translational Photosynthesis, $50,000
Heat stress tolerance in Sorghum bicolor and in combination with elevated CO2, drought and phosphorous deficiency.
Investigators: Ghannoum O, Cano FJM
- 2019: Agility Grant, ARC CoE for Translational Photosynthesis, $45,000
Development of transcriptomic predictors of heat shock response in Sorghum bicolor.
Investigators: Ghannoum O, Watson-Lazowski A
- 2019-2023: Horticulture Innovation Australia, $1,377,000 - LP18000
Emerging Leaders in Protected Cropping
Investigators: A/Prof Zhonghua Chen, Prof Ian Anderson, Prof David Tissue, Prof Yi-Chen Lan, Prof Priti Krishna, Prof Paul Holford, Prof Vijay Jayasena, Prof Basant Maheshwari, A/Prof Oula Ghannoum, Dr Andy Broderick, Dr Dilupa Nakandala.
- 2017 - 2020: Horticulture Innovation Australia, $799,071 - VG16070
Research and operations to trial innovative glass and photovoltaic technologies in protected cropping
Investigators: Tissue DT, Chen Z, Cazzonelli C, Ghannoum O, Anderson I, Rakhesh N, Thompson D.
- 2014 – 2020: ARC Centre of Excellence, $2M from ARC and 0.7M from UWS (total CE funding $22M) - CE140100015
ARC Centre of Excellence for Translational Photosynthesis.
Investigators: M Badger; S von Caemmerer; John Evans; G Farquhar; G Price; S Whitney; G Hammer; D Jordan; M Chen; O Ghannoum; R Furbank; W Quick
- 2014 – 2016: ARC Discovery, $315,000 - DP140103415
Is physiological flexibility of forest trees constrained by home climate in a rapidly warming world?
Investigators: MG Tjoelker, O Ghannoum, J Drake, DT Tissue, PB Reich
- Crop traits for productivity in a high carbon dioxide world under drought and heat [via University of Melbourne]
2013-2016: DAFF via ACRG
Investigators: M Tausz, S Tausz-Posch, O Ghannoum, R Duursma, G Fitzgerald, R Armstrong, G O'Leary, J Nuttall,
- Rubisco for all climates: unlocking the enzyme's structure-function relations for more efficient photosynthesis.
2012 – 2014: ARC Discovery, $310,000
Investigators: SM Whitney, O Ghannoum
- Impacts of climate change on nitrogen uptake by eucalypt seedlings.
2010: Australian Institute of Nuclear Science & Engineering-AINSE Research Award, $6,108
Investigators: O. Ghannoum, P. Milham
- Causes and consequences of the differences in leaf biochemistry and structure between NAD-ME and NADP-ME C4 grasses (completed).
2001 – 2003: ARC Postdoctoral Fellowship, $185,766
APD Fellow: O Ghannoum
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- 2012: UWS Research Grant Scheme, $22,785
Using multispectral stereo imaging to determine the impacts of free air CO2 enrichment on a eucalypt woodland understory (EucFACE)
Investigators: M Boer, O Ghannoum
- 2011: CHS/UWS Research Infrastructure Fund, $138,449
Plant Bioengineering and Biochemistry Facility
Investigators: O. Ghannoum, R. Sharwood, D. Tissue, B. Choat
- 2010: CHS/UWS Research Infrastructure Fund, $149,250
Molecular Imaging and Transformation Facility
Investigators: O. Ghannoum, I. Anderson, R. Sharwood, M. Riegler
- A Phytotron for Multitrophic Interactions on Plant Production Systems.
2009: UWS Research Infrastructure Fund, $300,000
Investigators: M. Riegler, O. Ghannoum, and B. Bellotti
- Using metabolomics to study the response of Australia's tropical grasses to phosphorus deficiency (completed).
2005: UWS International Research Initiative Scheme, $17,382
Investigators: O Ghannoum, JP Conroy and MJ Paul
- Using transcriptomics to compare the effects of phosphorus deficiency on the model plants arabidopsis and maize (completed).
2005: UWS Internal Research Grant Scheme, $23,500
Investigators: V Higgins and O Ghannoum
- Proteomics of the bundle sheath and mesophyll thylakoid membrane in maize (completed).
2004: UWS Research Seed Grant Scheme, $7,500
Investigator: O Ghannoum
- Relating carbon and nitrogen metabolism regulation to osmolyte accumulation in C4 grasses under water stress (completed).
1998: UWS Internal Research Grant Scheme, $12,000
Investigator: O Ghannoum
- Response of C3 and C4Panicum grasses to CO2 enrichment (completed).
1995 – 1996: ANU Collaborative Research Scholarship, $14,000
PhD candidate: O Ghannoum
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2020 The green shoots of recovery. https://www.openforum.com.au/the-green-shoots-of-recovery/
2020 Protected cropping and resilience of the food supply chain. https://www.openforum.com.au/protected-cropping-and-resilience-of-the-food-supply-chain/
2021: Video by the Australian Academy of Science: Video: https://youtu.be/rHO7vorqTlA
2021: Follow-up interviews on Arabic community radio: https://www.sbs.com.au/language/arabic/audio/improving-photosynthesis-our-best-bet-to-create-a-food-secure-world
2017: The Big Picture: Is China the new food market? Interview by Greg Navarro, CGTN on Food Security. https://youtu.be/rwxooxRz3pc
2017: Interview by Greg Navarro, CGTN on Desertification. https://youtu.be/rwxooxRz3pc
2021: AAS CoETP: https://www.scimex.org/newsfeed/improving-photosynthesis-our-best-bet-to-create-a-food-secure-world
2019: Too much sugar doesn't put the brakes on turbocharged crops: https://phys.org/news/2019-11-sugar-doesnt-turbocharged-crops.html
2019: Narrow leaves make better crops for future climates: https://www.arc.gov.au/news-publications/media/research-highlights
2017: Australia’s native grasses give clues about crop responses to global warming: http://photosynthesis.org.au/australias-native-grasses-give-clues-about-crop-responses-to-global-warming/
2017: Proposed Benefits Of Rising Carbon Dioxide Are More Likely Driven By Water: https://www.westernsydney.edu.au/hie/news/proposed_benefits_of_rising_carbon_dioxide_are_more_likely_driven_by_water
2016: Panic grass could be the response to uncertain food future: http://www.anu.edu.au/news/all-news/common-grass-could-help-boost-food-security
2016: Common grass could help boost food security: http://www.anu.edu.au/news/all-news/common-grass-could-help-boost-food-security
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Follow me on Google Scholar (opens in a new window)
Ghannoum O, von Caemmerer S, Taylor N, Millar AH (2013). CO2 assimilation and respiration in "Plants in Action". 2nd edition: http://plantsinaction.science.uq.edu.au (opens in a new window). (Eds. R Munns, S Schmidt, C Beveridge). Australian Society of Plant Scientists.
Ghannoum O, Evans JR, von Caemmerer S, (2011) Nitrogen and water use efficiency of C4 plants, in C4 Photosynthesis and Related CO2 Concentrating Mechanisms, Advances in Photosynthesis and Respiration series, pp 129 - 146 (Eds) Raghavendra AS, Sage RF, Springer, Berlin
Ghannoum O, Searson M, Conroy J, (2006) Nutrient and water demands of plants under climate change, in Agroecosystems in a Changing Climate, Advances in Agroecology Series 12, (Eds) Newton PCD, Edwards G, Carran A, & Niklaus P, CRC Press, Boca Raton, FL, USA, pp 53–83
Sagun JV, Badger MR, Chow WS, Ghannoum O, (2021) 'Mehler reaction plays a role in C3 and C4 photosynthesis under shade and low CO2', Photosynthesis Research, doi 10.1007/s11120-021-00819-1
Zhao C, Chavan S, He X, Zhou M, Cazzonelli CI, Chen Z-H, Tissue DT, Ghannoum O, (2021) 'Smart glass impacts stomatal sensitivity of greenhouse Capsicum through altered light', Journal of Experimental Botany, vol.72, no.8, pp 3235–3248
Chavan SG, Maier C, Alagoz Y, Filipe JC, Warren CR, Lin H, Jia BH, Loik ME, Cazzonelli CI, Chen ZHH, Ghannoum O, Tissue DT, (2020) 'Light-limited photosynthesis under energy-saving film decreases eggplant yield', Food and Energy Security, Article no.e245
Henry C, Watson-Lazowski A, Oszvald M, Griffiths C, Paul MJ, Furbank RT, Ghannoum O, (2020) 'Sugar sensing responses to low and high light in leaves of the C4 model grass Setaria viridis', Journal of experimental botany, vol.71, no.3, pp 1039-1052
Chavan SG, Duursma RA, Tausz M, Ghannoum O, (2019) 'Elevated CO2 alleviates the negative impact of heat stress on wheat physiology but not on grain yield', Journal of experimental botany, vol.70, no.21, pp 6447-6459
Hernández-Prieto MA, Foster C, Watson-Lazowski A, Ghannoum O, Chen M, (2019) 'Comparative analysis of thylakoid protein complexes in the mesophyll and bundle sheath cells from C3, C4 and C3 –C4 Paniceae grasses', Physiologia Plantarum, vol.166, no.1, pp 134-147
Kumarathunge DP, Medlyn BE, Drake JE, Tjoelker MG, Aspinwall MJ, Battaglia M, Cano FJ, Carter KR, Cavaleri MA, Cernusak LA, Chambers JQ, Crous KY, De Kauwe MG, Dillaway DN, Dreyer E, Ellsworth DS, Ghannoum O, Han QM, Hikosaka K, Jensen AM, Kelly JWG, Kruger EL, Mercado LM, Onoda Y, Reich PB, Rogers A, Slot M, Smith NG, Tarvainen L, Tissue DT, Togashi HF, Tribuzy ES, Uddling J, Varhammar A, Wallin G, Warren JM, Way DA, (2019) 'Acclimation and adaptation components of the temperature dependence of plant photosynthesis at the global scale', New Phytologist, vol.222, no.2, pp 768-784
Ver Sagun J, Badger MR, Chow WS, Ghannoum O, (2019) 'Cyclic electron flow and light partitioning between the two photosystems in leaves of plants with different functional types', Photosynthesis Research, vol.142, no. 3, pp 321-334
Way DA, Aspinwall MJ, Drake JE, Crous KY, Campany CE, Ghannoum O, Tissue DT, Tjoelker MG, (2019) 'Responses of respiration in the light to warming in field-grown trees: a comparison of the thermal sensitivity of the Kok and Laisk methods', New Phytologist, vol.222, no.1, pp 132-143
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
Crous KY, Drake JE, Aspinwall MJ, Sharwood RE, Tjoelker MG, Ghannoum O, (2018) 'Photosynthetic capacity and leaf nitrogen decline along a controlled climate gradient in provenances of two widely distributed Eucalyptus species', Global Change Biology, vol.24, no.10, pp 4626-4644
Sonawane BV, Sharwood RE, Whitney S, Ghannoum O, (2018) 'Shade compromises the photosynthetic efficiency of NADP-ME less than that of PEP-CK and NAD-ME C-4 grasses', Journal of Experimental Botany, vol.69, no.12, pp 3053-3068
Taylor SH, Aspinwall MJ, Blackman CJ, Choat B, Tissue DT, Ghannoum O, (2018) 'CO2 availability influences hydraulic function of C3 and C4 grass leaves', Journal of Experimental Botany, vol.69, no.10, pp 2731-2741
Watson-Lazowski A, Papanicolaou A, Sharwood R, Ghannoum O, (2018) 'Investigating the NAD-ME biochemical pathway within C-4 grasses using transcript and amino acid variation in C-4 photosynthetic genes', Photosynthesis Research, vol.138, no.2, pp 233-248
Drake JE, Varhammar A, Kumarathunge D, Medlyn BE, Pfautsch S, Reich PB, Tissue DT, Ghannoum O, Tjoelker MG, (2017) 'A common thermal niche among geographically diverse populations of the widely distributed tree species Eucalyptus tereticornis: No evidence for adaptation to climate-of-origin', Global Change Biology, vol.23, no.12, pp 5069-5082
Li CJ, Jackson P, Lu X, Xu CH, Cai Q, Basnayake J, Lakshmanan P, Ghannoum O, Fan YH, (2017) 'Genotypic variation in transpiration efficiency due to differences in photosynthetic capacity among sugarcane-related clones', Journal of Experimental Botany, vol.68, no.9, pp 2377-2385
Pathare VS, Crous KY, Cooke J, Creek D, Ghannoum O, Ellsworth DS, (2017) 'Water availability affects seasonal CO2-induced photosynthetic enhancement in herbaceous species in a periodically dry woodland', Global Change Biology, vol.23, no.12, pp 5164-5178
Sharwood RE, Crous KY, Whitney SM, Ellsworth DS, Ghannoum O, (2017) 'Linking photosynthesis and leaf N allocation under future elevated CO2 and climate warming in Eucalyptus globulus', Journal of Experimental Botany, vol.68, no.5, pp 1157-1167
Sonawane BV, Sharwood RE, von Caemmerer S, Whitney SM, Ghannoum O, (2017) 'Short-term thermal photosynthetic responses of C-4 grasses are independent of the biochemical subtype', Journal of Experimental Botany, vol.68, no.20, pp 5583-5597
Von Caemmerer S, Ghannoum O, Furbank RT, (2017) 'C4 photosynthesis: 50 years of discovery and innovation', Journal of Experimental Botany, vol.68, no.2, pp 97-102
Aspinwall MJ, Drake JE, Campany C, Vårhammar A, Ghannoum O, Tissue DT, Reich PB, Tjoelker MG, (2016) 'Convergent acclimation of leaf photosynthesis and respiration to prevailing ambient temperatures under current and warmer climates in Eucalyptus tereticornis', New Phytologist, vol.212, no.2, pp 354-367
Ghannoum O, (2016) 'How can we breed for more water use-efficient sugarcane?', Journal of Experimental Botany, vol.67, no.3, pp 557-559
Pinto H, Powell JR, Sharwood RE, Tissue DT, Ghannoum O, (2016) 'Variations in nitrogen use efficiency reflect the biochemical subtype while variations in water use efficiency reflect the evolutionary lineage of C4 grasses at inter-glacial CO2', Plant, Cell and Environment, vol.39, no.3, pp 514-526
Sharwood RE, Ghannoum O, Kapralov MV, Gunn LH, Whitney SM, (2016) 'Temperature responses of Rubisco from Paniceae grasses provide opportunities for improving C 3 photosynthesis', Nature Plants, vol.2, Article no.16186
Sharwood RE, Ghannoum O, Whitney SM, (2016) 'Prospects for improving CO2 fixation in C3-crops through understanding C4-Rubisco biogenesis and catalytic diversity', Current Opinion in Plant Biology, vol.31, pp 135-142
Sharwood RE, Sonawane BV, Ghannoum O, Whitney SM, (2016) 'Improved analysis of C4 and C3 photosynthesis via refined in vitro assays of their carbon fixation biochemistry', Journal of Experimental Botany, vol.67, no.10, pp 3137-3148
Drake JE, Aspinwall MJ, Pfautsch S, Rymer PD, Reich PB, Smith RA, Crous KY, Tissue DT, Ghannoum O, Tjoelker MG, (2015) 'The capacity to cope with climate warming declines from temperate to tropical latitudes in two widely distributed Eucalyptus species', Global Change Biology, vol.21, no.1, pp 459-472
Lin Y-S, Medlyn BE, Duursma RA, Prentice IC, Wang H, Baig S, Eamus D, De Dios VR, Mitchell P, Ellsworth DS, De Beeck MO, Wallin G, Uddling J, Tarvainen L, Linderson M-L, Cernusak LA, Nippert JB, Ocheltree TW, Tissue DT, Martin-StPaul NK, Rogers A, Warren JM, De Angelis P, Hikosaka K, Han Q, Onoda Y, Gimeno TE, Barton CVM, Bennie J, Bonal D, Bosc A, Löw M, Macinins-Ng C, Rey A, Rowland L, Setterfield SA, Tausz-Posch S, Zaragoza-Castells J, Broadmeadow MSJ, Drake JE, Freeman M, Ghannoum O, Hutley LB, Kelly JW, Kikuzawa K, Kolari P, Koyama K, Limousin J-M, Meir P, Da Costa ACL, Mikkelsen TN, Salinas N, Sun W, Wingate L, (2015) 'Optimal stomatal behaviour around the world', Nature Climate Change, vol.5, no.5, pp 459-464
Chehine C, Holford P, Ghannoum O, Collins D, Conroy JP, Milham PJ, (2014) 'Transpiration influences cadmium uptake by baby leaf Spinach (Spinacia Oleracea L.)', American Journal of Agricultural and Biological Science, vol.9, no.4, pp 523-533
Pinto H, Sharwood RE, Tissue DT, Ghannoum O (2014). Photosynthesis of C3, C3-C4 and C4 grasses at glacial CO2. Journal of Experimental Botany, vol.65 , no.13 , pp 3669-3681 , Special Issue SI.
Sharwood RE, Sonawane BV, Ghannoum O, (2014) 'Photosynthetic flexibility in maize exposed to salinity and shade', Journal of Experimental Botany, vol.65, no.13, pp 3715-3724 Special Issue: SI
von Caemmerer S, Ghannoum O, Pengelly JL, Cousins AB (2014). Carbon isotope discrimination as a tool to explore C4 photosynthesis. Journal of Experimental Botany, vol.65, no.13 , pp 3459-3470 , Special Issue SI.
Anderson IC, Drigo B, Keniry K, Ghannoum O, Chambers SM, Tissue DT, Cairney JW, (2013) 'Interactive effects of preindustrial, current and future atmospheric CO2 concentrations and temperature on soil fungi associated with two Eucalyptus species', FEMS Microbiology Ecology, vol.83, no.2, pp 425-437
De Dios VR, Turnbull MH, Barbour MM, Ontedhu J, Ghannoum O, Tissue DT, (2013) 'Soil phosphorous and endogenous rhythms exert a larger impact than CO 2 or temperature on nocturnal stomatal conductance in Eucalyptus tereticornis', Tree Physiology, vol.33, no.11, pp 1206-1215
Franks PJ, Adams MA, Amthor JS, Barbour MM, Berry JA, Ellsworth DS, Farquhar GD, Ghannoum O, Lloyd J, McDowell N, Norby RJ, Tissue DT, von Caemmerer S, (2013) 'Sensitivity of plants to changing atmospheric CO2 concentration: From the geological past to the next century', New Phytologist, vol.197, no.4, pp 1077-1094
Lewis JD, Smith RA, Ghannoum O, Logan BA, Phillips NG, Tissue DT, (2013) 'Industrial-age changes in atmospheric [CO2] and temperature differentially alter responses of faster- and slower-growing Eucalyptus seedlings to short-term drought', Tree Physiology, vol.33, no.5, pp 475-488
Sherwin GL, George L, Kannangara K, Tissue DT, Ghannoum O, (2013) 'Impact of industrial-age climate change on the relationship between water uptake and tissue nitrogen in eucalypt seedlings', Functional Plant Biology, vol.40, no.2, pp 201-212
Smith RA, Lewis JD, Ghannoum O, Tissue DT, (2012) 'Leaf structural responses to pre-industrial, current and elevated atmospheric [CO2] and temperature affect leaf function in Eucalyptus sideroxylon', Functional Plant Biology, vol.39, no.4, pp 285-296
Xu C-Y, Salih A, Ghannoum O, Tissue DT, (2012) 'Leaf structural characteristics are less important than leaf chemical properties in determining the response of leaf mass per area and photosynthesis of Eucalyptus saligna to industrial-age changes in [CO2] and temperature', Journal of Experimental Botany, vol.63, no.16, pp 5829-5841
Ghannoum O, Way DA, (2011) 'On the role of ecological adaptation and geographic distribution in the response of trees to climate change', Tree Physiology, vol.31, no.12, pp 1273-1276
Phillips NG, Attard RD, Ghannoum O, Lewis JD, Logan BA, Tissue DT, (2011) 'Impact of variable [CO2] and temperature on water transport structure-function relationships in Eucalyptus', Tree Physiology, vol.31, pp 945-952
Pinto H, Tissue DT, Ghannoum O, (2011) 'Panicum milioides (C3-C4) does not have improved water or nitrogen economies relative to C3 and C4 congeners exposed to industrial-age climate change', Journal of Experimental Botany, vol.62, pp 3223-3234
Logan BA, Hricko C, Lewis JD, Ghannoum O, Phillips NG, Smith RA, Conroy JP, Tissue DT, (2010) 'Examination of pre-industrial and future [CO2] reveals the temperature-dependent CO2 sensitivity of light energy partitioning at PSII in eucalypts', Functional Plant Biology, vol.37, pp 1041-1049
Ghannoum O, Phillips NG, Sears MA, Logan BA, Lewis JD, Conroy JP, Tissue DT, (2010) 'Photosynthetic responses of two eucalypts to industrial-age changes in atmospheric [CO2] and temperature', Plant, Cell and Environment, vol.33, pp 1671-1681
Edwards EJ, Osborne CP, Strömberg CAE, Smith SA, Bond WJ, Christin P-A, Cousins AB, Duvall MR, Fox DL, Freckleton RP, Ghannoum O, Hartwell J, Huang Y, Janis CM, Keeley JE, Kellogg EA, Knapp AK, Leakey ADB, Nelson DM, Saarela JM, Sage RF, Sala OA, Salamin N, Still CJ, Tipple B, (2010) 'The origins of C4 grasslands: Integrating evolutionary and ecosystem science', Science, vol.328, pp 587-591
Cousins AB, Ghannoum O, von Caemmerer S, Badger MR, (2010) 'Simultaneous determination of Rubisco carboxylase and oxygenase kinetic parameters in Triticum aestivum and Zea mays using membrane inlet mass spectrometry', Plant, Cell and Environment, vol.33, pp 444-452
Ghannoum O, Phillips NG, Conroy JP, Smith RA, Attard RD, Woodfield R, Logan BA, Lewis JD, Tissue DT, (2010) 'Exposure to pre-industrial, current and future atmospheric [CO2] and temperature differentially affects growth and photosynthesis in Eucalyptus', Global Change Biology, vol.16, pp 303-319
Ghannoum O, (2009) 'C4 photosynthesis and water stress', Annals of Botany, vol.103, pp 635-644 (Invited Review)
Ghannoum O, Paul MJ, Ward JL, Beale MH, Corol D-I, Conroy JP, (2008) 'The sensitivity of photosynthesis to phosphorus deficiency differs between C3 and C4 tropical grasses', Functional Plant Biology, vol.35, pp 213-221
Ghannoum O, Conroy JP, (2007) 'Phosphorus deficiency inhibits growth in parallel with photosynthesis in a C3 (Panicum laxum) but not two C4 (P. coloratum and Cenchrus ciliaris) grasses', Functional Plant Biology, vol.34, pp 72-81
Dwyer SA, Ghannoum O, Nicotra A, von Caemmerer S, (2007) 'High temperature acclimation of C4 photosynthesis is linked to changes in photosynthetic biochemistry', Plant, Cell and Environment, vol.30, pp 53-66
Ghannoum O, Evans JR, Chow WS, Andrews TJ, Conroy JP, and von Caemmerer S, (2005) 'Faster Rubisco is the key to superior nitrogen use efficiency in NADP-ME relative to NAD-ME C4 grasses', Plant Physiology, vol.137, pp 638-650
Pellny T, Ghannoum O, Conroy JP, Schluepmann H, Smeekens S, Andralojc J, Krause K-P, Goddijn O, Paul MJ, (2004) 'Genetic modification of photosynthesis with E. coli genes for trehalose synthesis', Plant Biotechnology Journal, vol.2, pp 71-82
*Siebke K, Ghannoum O, Conroy JP, Badger MR, von Caemmerer S, (2003) 'Photosynthetic oxygen exchange in C4 grasses: the role of oxygen as electron acceptor', Plant, Cell and Environment, vol.26, pp 1963-1972
*Ghannoum O, Conroy JP, Driscoll SP, Paul MJ, Foyer CH, and Lawlor DW, (2003) 'Non-stomatal limitations are responsible for drought-induced photosynthetic inhibition in four C4 grasses', New Phytologist, vol.159, pp 835-844
Siebke K, Ghannoum O, Conroy JP, von Caemmerer S, (2002) 'Elevated CO2 increases the leaf temperature of two glasshouse-grown C4 grasses', Functional Plant Biology, vol.29, pp 1377-1384
*Ghannoum O, von Caemmerer S, Conroy JP, (2002) 'The effect of drought on plant water use efficiency of 9 NAD-ME and 9 NADP-ME C4 grasses', Functional Plant Biology, vol.29, pp 1337-1348
Seneweera SP, Conroy JP, Ishimaru K, Ghannoum O, Okada M, Lieffering M, Kim H-Y, Kobayashi K, (2002) 'Changes in source-sink relations during development influence photosynthetic acclimation of rice to free-air CO2 enrichment (FACE)', Functional Plant Biology, vol.29, pp 945-953
Ghannoum O, von Caemmerer S, Conroy JP, (2001a) 'Carbon and water economy of Australian NAD-ME and NADP-ME C4 grasses', Functional Plant Biology, vol.28, pp 213-223
Ghannoum O, von Caemmerer S, Conroy JP, (2001b) 'Plant water use efficiency of 17 Australian NAD-ME and NADP-ME C4 grasses at ambient and elevated CO2 partial pressure', Functional Plant Biology, vol.28, pp 1207-1217
Seneweera SP, Ghannoum O, Conroy JP, (2001) 'Root and shoot factors contribute to the effect of drought on photosynthesis and growth of the C4 grass Panicum coloratum at elevated CO2 partial pressure', Functional Plant Biology, vol.28, pp 451-460
von Caemmerer S, Ghannoum O, Conroy JP, Clark H, Newton PCD, (2001) 'Photosynthetic responses of temperate species to free air CO2 enrichment (FACE) in a grazed New Zealand pasture', Functional Plant Biology, vol.28, pp 439-450
Ziska LH, Ghannoum O, Baker JT, Conroy J, Bunce JA, Kobayashi K, Okada M, (2001) 'A global perspective of ground level, "ambient" carbon dioxide for assessing the response of plants to atmospheric CO2', Global Change Biology, vol.7, pp 789-796
Ghannoum O, von Caemmerer S, Ziska LH, and Conroy JP, (2000) 'The growth response of C4 plants to rising atmospheric CO2 partial pressure: a reassessment', Plant, Cell and Environment, vol.23, pp 931-942 (Review)
Aben S. Seneweera S. Ghannoum O, Conroy J, (1999) 'Nitrogen requirement for maximum growth and photosynthesis of rice Oryza sativa L. cv Jarrah grown at 36 and 70 Pa CO2', Functional Plant Biology, vol.26, pp 759-766
Howden SM, McKeon GM, Walker L, Carter JO, Conroy JP, Hall WB, Ash AJ, Ghannoum O, (1999) 'Global change impacts on native pasture in south-east Queensland, Australia', Environmental Modelling & Software, vol.14, pp 307-316
Ghannoum O, Conroy JP, (1998) 'N deficiency precludes a growth response to elevated CO2 in C3 and C4Panicum grasses', Functional Plant Biology, vol.25, pp 627-636
Ghannoum O, Siebke K, von Caemmerer S, Conroy JP, (1998) 'The photosynthesis of young C4Panicum leaves is not C3-like', Plant, Cell and Environment, vol.9, pp 1123-1131
Seneweera SP, Ghannoum O, Conroy JP, (1998) 'High vapour pressure deficit and low soil water availability enhance shoot growth responses of a C4 grass (Panicum coloratum cv. Bambatsi) to CO2 enrichment' Functional Plant Biology, vol.25, pp 287-292
Ghannoum O, von Caemmerer S, Barlow EWR, Conroy JP, (1997) 'The Effect of CO2 enrichment and irradiance on the growth, morphology and gas exchange of a C3 (Panicum laxum) and a C4 (Panicum antidotale) grass' Functional Plant Biology, vol.24, pp 227-237
Ghannoum O, von Caemmerer S, Conroy JP, (2001) Growth and water use efficiency of NAD-ME and NADP-ME C4 grasses exposed to a drying soil, in: Proceedings of the 12th International Congress on Photosynthesis. (Paper No. S17-006), CSIRO Publishing, Melbourne
Siebke S, Ghannoum O, Conroy JP, von Caemmerer S, (2001) Leaf temperature of C4 grasses is increased in elevated CO2 in a glasshouse, in Proceedings of the 12th International Congress on Photosynthesis. (Paper No. S32-012), CSIRO Publishing, Melbourne