Research Topics
| Lucas A CernusakSummaryAffiliation: Charles Darwin University Country: Australia Publications
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Detail Information
Publications
Water relations link carbon and oxygen isotope discrimination to phloem sap sugar concentration in Eucalyptus globulusLucas A Cernusak
Environmental Biology Group and Cooperative Research Center for Greenhouse Accounting, Research School of Biological Sciences, Australian National University, Australia
Plant Physiol 131:1544-54. 2003..91, P < 0.0001, n = 39), consistent with predictions from a theoretical model of Delta(18)O. We conclude that drought induces correlated variation in the concentration of phloem sap sugars and their isotopic composition in E. globulus...- Conifers, angiosperm trees, and lianas: growth, whole-plant water and nitrogen use efficiency, and stable isotope composition ({delta}13C and {delta}18O) of seedlings grown in a tropical environmentLucas A Cernusak
Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
Plant Physiol 148:642-59. 2008..0001, n = 94), with some residual variation explained by mean transpiration rate. Measurements of carbon and oxygen stable isotope ratios could provide a useful means of parameterizing physiological models of tropical forest trees... 
Physiological and isotopic (delta(13)C and delta(18)O) responses of three tropical tree species to water and nutrient availabilityLucas A Cernusak
Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
Plant Cell Environ 32:1441-55. 2009..grandis. Results suggest inter-specific variation among tropical tree species in relationships between stable isotope ratios (delta(13)C and delta(18)O) and the gas exchange processes thought to affect them...- Transpiration efficiency over an annual cycle, leaf gas exchange and wood carbon isotope ratio of three tropical tree speciesLucas A Cernusak
Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
Tree Physiol 29:1153-61. 2009..The results suggest that leaf-level processes largely determined variation among the three tropical tree species in whole-plant water-use efficiency integrated over a full annual cycle... - Oxygen isotope composition of CAM and C3 Clusia species: non-steady-state dynamics control leaf water 18O enrichment in succulent leavesLucas A Cernusak
Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
Plant Cell Environ 31:1644-62. 2008..The results provided a clear example of how non-steady-state control of leaf water (18)O dynamics can shift the slope of the relationship between transpiration rate and daytime Delta(18)O(L) from negative to positive... - Plant delta 15N correlates with the transpiration efficiency of nitrogen acquisition in tropical treesLucas A Cernusak
Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama
Plant Physiol 151:1667-76. 2009..These results provide a simple explanation of variation in delta(15)N of terrestrial plants and have implications for understanding nitrogen cycling in ecosystems... 
Environmental and physiological controls over oxygen and carbon isotope composition of Tasmanian blue gum, Eucalyptus globulusLucas A Cernusak
Environmental Biology Group and Cooperative Research Center for Greenhouse Accounting, Research School of Biological Sciences, Institute of Advanced Studies, Australian National University, Canberra, ACT 2601, Australia
Tree Physiol 25:129-46. 2005..globulus, 13C enrichment of sink tissues compared with source leaves does not result from an enriching process within the sink tissue...- Measurement and interpretation of the oxygen isotope composition of carbon dioxide respired by leaves in the darkLucas A Cernusak
Research School of Biological Sciences, Institute of Advanced Studies, Australian National University, Canberra, Australian Capitol Territory 2601 Australia
Plant Physiol 136:3350-63. 2004..Incorporation of the delta(18)O of leaf dark respiration into ecosystem and global scale models of C(18)OO dynamics could affect model outputs and their interpretation... - Leaf nitrogen to phosphorus ratios of tropical trees: experimental assessment of physiological and environmental controlsLucas A Cernusak
Smithsonian Tropical Research Institute, PO Box 0843 03092, Balboa, Ancon, Republic of Panama
New Phytol 185:770-9. 2010..The observed correlation between the leaf nitrogen to phosphorus ratio and water-use efficiency has implications for linking nutrient stoichiometry with plant transpiration... - Transpiration efficiency of a tropical pioneer tree (Ficus insipida) in relation to soil fertilityLucas A Cernusak
Smithsonian Tropical Research Institute, PO Box 0843 03092, Balboa, Ancon, Republic of Panama
J Exp Bot 58:3549-66. 2007..Results suggest that variation in plant N status could have important implications for the coupling between C and water exchange in tropical forest trees... - Large variation in whole-plant water-use efficiency among tropical tree speciesLucas A Cernusak
Smithsonian Tropical Research Institute, PO Box 0843 03092, Balboa, Ancon, Republic of Panama
New Phytol 173:294-305. 2007..The TE(C) varied with C-isotope discrimination within species, but the relationship broke down among species, reflecting the existence of species-specific offsets... - Ternary effects on the gas exchange of isotopologues of carbon dioxideGraham D Farquhar
Research School of Biology, Australian National University, Canberra, ACT 0200, Australia
Plant Cell Environ 35:1221-31. 2012.... - Responses of legume versus nonlegume tropical tree seedlings to elevated CO2 concentrationLucas A Cernusak
Research School of Biology, Australian National University, Canberra, Australian Capital Territory 0200, Australia
Plant Physiol 157:372-85. 2011.... - Transpiration modulates phosphorus acquisition in tropical tree seedlingsLucas A Cernusak
Research School of Biology, The Australian National University, Canberra, Australian Capital Territory 0200, Australia
Tree Physiol 31:878-85. 2011..The positive correlation between leaf P:C and transpiration ratio suggests that leaf P:C could decline in tropical forests as atmospheric CO(2) concentration rises, due to decreasing transpiration ratios... - Heavy water fractionation during transpirationGraham D Farquhar
Research School of Biological Sciences, Australian National University, Canberra, Australian Capital Territory 2600, Australia
Plant Physiol 143:11-8. 2007 - Oxygen and carbon isotope composition of parasitic plants and their hosts in southwestern AustraliaLucas A Cernusak
Environmental Biology Group and Cooperative Research Center for Greenhouse Accounting, Research School of Biological Sciences, Australian National University, GPO Box 475, 2601, Canberra, ACT, Australia
Oecologia 139:199-213. 2004.... - Modelling advection and diffusion of water isotopologues in leavesMatthias Cuntz
Environmental Biology Group, Research School of Biological Sciences, Australian National University, Canberra, Australia
Plant Cell Environ 30:892-909. 2007..We showed that taking an unsuitable leaf water enrichment model could lead to large biases when cumulated over only 1 day... - Stem and leaf gas exchange and their responses to fire in a north Australian tropical savannaLucas A Cernusak
School of Science and Primary Industries, Faculty of Education, Health and Science, Charles Darwin University, Darwin, NT 0909, Australia
Plant Cell Environ 29:632-46. 2006..We suggest that re-fixation allowed leaves of E. miniata to photosynthesize at higher rates than those of E. tetrodonta, while the two invested similar amounts of C in the maintenance of branch sapwood...