John R. Evans
Australian National University
181 Papers
1.4K Citations
John R. Evans is an academic researcher from Australian National University. The author has contributed to research in topics: Photosynthesis & Biology. The author has an hindex of 72, co-authored 174 publications. Previous affiliations of John R. Evans include Utrecht University & Cooperative Research Centre.
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Papers
Photosynthesis and nitrogen relationships in leaves of C3 plants.
TL;DR: Surviving in certain environments clearly does not require maximising photosynthetic capacity for a given leaf nitrogen content, as variation reflects different strategies of nitrogen partitioning, the electron transport capacity per unit of chlorophyll and the specific activity of RuBP carboxylase.
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Photosynthetic acclimation of plants to growth irradiance: the relative importance of specific leaf area and nitrogen partitioning in maximizing carbon gain
John R. Evans,Hendrik Poorter +1 more
TL;DR: Changes in specific leaf area (SLA, projected leaf area per unit leaf dry mass) and nitrogen partitioning between proteins within leaves occur during the acclimation of plants to their growth irradiance, and the relative importance of both of these changes in maximizing carbon gain is quantified.
1.2K
Carbon isotope discrimination measured concurrently with gas exchange to investigate CO2 diffusion in leaves of higher plants
TL;DR: Despite uncertainties about various processes affecting carbon isotope composition, the resistance to the transfer of CO2 from the intercellular airspaces to the sites of carboxylation in the mesophyll chloroplasts was estimated and is consistent with, and provides the first direct experimental support for, theoretical equations describing discrimination during photosynthesis.
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Photosynthetic nitrogen-use efficiency of species that differ inherently in specific leaf area
Hendrik Poorter,John R. Evans +1 more
TL;DR: Differences between species in organic leaf nitrogen content per se were no longer important and higher PNUEmax of the high SLA species was due to a higher fraction of N in␣photosynthetic compounds and a higher Rubisco specific activity (for high-light grown plants).
Resistances along the CO2 diffusion pathway inside leaves
TL;DR: The parameters in greatest need of additional measurements are S(c), mesophyll cell wall thickness, and the permeabilities of the plasma membrane and chloroplast envelope.
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