Freshwater angiosperm carbon concentrating mechanisms: processes and patterns

Functional Plant Biology : FPB
Stephen C Maberly, T. V. Madsen

Abstract

Aquatic angiosperms are derived from terrestrial ancestors and appear to have re-invaded water on many occasions. While removing problems of water supply and reducing the need for supporting tissue, freshwaters have a potentially low and fluctuating supply of CO2 for photosynthesis, as well as generally low light. This paper reviews the structural, morphological, physiological, and biochemical features of freshwater macrophytes in the context of maximising net carbon uptake underwater, and discusses how inorganic carbon may influence macrophyte ecology. Submerged leaves tend to have a low photosynthetic capacity on an area basis, matching the low rates of supply of CO2 and light. Morphological and structural strategies to overcome potential carbon limitation include possession of aerial or floating leaves, and lacunal connexions to high concentrations of sedimentary CO2 via the roots. Physiological and biochemical strategies include crassulacean acid metabolism, C4-like metabolism in Hydrilla and Egeria, and the ability to use HCO3-. The activity of all these can be regulated by environmental conditions to maximize growth rate. Use of HCO3-. is the most widespread carbon acquisition strategy, present in about half of the tested...Continue Reading

Citations

Feb 5, 2016·Journal of Experimental Botany·John A Raven, Timothy D Colmer
Sep 16, 2017·Journal of Experimental Botany·Anthony William D LarkumJohn A Raven
Sep 1, 2017·Functional Plant Biology : FPB·Anders WinkelOle Pedersen
Jul 19, 2005·Annals of Botany·Liesje Mommer, Eric J W Visser
Feb 16, 2008·The New Phytologist·John A Raven
Feb 6, 2013·Environmental Science and Pollution Research International·Yanyan DouDaqiang Yin
Mar 24, 2017·Journal of the Royal Society, Interface·Mads LichtenbergMichael Kühl
Nov 16, 2018·Proceedings. Biological Sciences·Theis Kragh, Kaj Sand-Jensen
Feb 20, 2014·Plant, Cell & Environment·Pieter VerbovenTimothy D Colmer
Oct 1, 2009·Journal of Phycology·Stephen C MaberlyDieter Sültemeyer
Apr 4, 2017·Journal of Experimental Botany·Hui ShaoWen Min Huang
May 13, 2018·International Journal of Molecular Sciences·Charlotte PoschenriederJuan Barceló
Dec 1, 2015·The Journal of Applied Ecology·Annette Baattrup-PedersenNikolai Friberg
May 20, 2008·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·John A RavenChristina L De La Rocha
Feb 17, 2009·Annals of Botany·Anders Winkel, Jens Borum
Mar 19, 2013·Global Change Biology·Marguerite KochXing-Hai Zhang
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May 21, 2019·Hydrology and Earth System Sciences·Yu-Ting ShihJr-Chuan Huang
Jan 7, 2014·Photosynthesis Research·John A RavenMario Giordano
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Oct 16, 2015·Journal of Experimental Botany·John A Raven, John Beardall
Nov 30, 2019·The New Phytologist·Hans van Veen, Rashmi Sasidharan
Oct 24, 2020·The Science of the Total Environment·Kaj Sand-JensenTheis Kragh
May 23, 2017·Journal of Environmental Management·Alison MikulyukKelly I Wagner
Feb 1, 2004·The New Phytologist·Rowan F Sage

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