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Photosynthesis and photosynthetic efficiencies along the terrestrial plantís phylogeny: lessons for improving crop photosynthesis


Flexas, J and Carriqui, M, Photosynthesis and photosynthetic efficiencies along the terrestrial plant's phylogeny: lessons for improving crop photosynthesis, The Plant Journal, 101, (4) pp. 964-978. ISSN 1365-313X (2020) [Refereed Article]

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DOI: doi:10.1111/tpj.14651


Photosynthesis is the basis of all life on Earth. Surprisingly, until very recently, data on photosynthesis, photosynthetic efficiencies, and photosynthesis limitations in terrestrial land plants other than spermatophytes were very scarce. Here we provide an updated data compilation showing that maximum photosynthesis rates (expressed either on an area or dry mass basis) progressively scale along the land plantís phylogeny, from lowest values in bryophytes to largest in angiosperms. Unexpectedly, both photosynthetic water (WUE) and nitrogen (PNUE) use efficiencies also scale positively through the phylogeny, for which it has been commonly reported that these two efficiencies tend to trade-off between them when comparing different genotypes or a single species subject to different environmental conditions. After providing experimental evidence that these observed trends are mostly due to an increased mesophyll conductance to CO2 Ė associated with specific anatomical changes Ė along the phylogeny, we discuss how these findings on a large phylogenetic scale can provide useful information to address potential photosynthetic improvements in crops in the near future.

Item Details

Item Type:Refereed Article
Keywords:phylogenetic groups, mesophyll conductance, evolution, water use efficiency, photosynthetic nitrogen use efficiency
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant physiology
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Carriqui, M (Mr Marc Carriqui Alcover)
ID Code:151344
Year Published:2020
Web of Science® Times Cited:33
Deposited By:School of Natural Sciences
Deposited On:2022-07-27
Last Modified:2022-07-27

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