Mechanistic interpretation of carbon isotope discrimination by marine macroalgae and seagrasses

Functional Plant Biology : FPB
John A RavenKenneth H Dunton

Abstract

The literature, and previously unpublished data from the authors' laboratories, shows that the δ13C of organic matter in marine macroalgae and seagrasses collected from the natural environment ranges from -3 to -35‰. While some marine macroalgae have δ13C values ranging over more than 10‰ within the thallus of an individual (some brown macroalgae), in other cases the range within a species collected over a very wide geographical range is only 5‰ (e.g. the red alga Plocamium cartilagineum which has values between -30 and -35‰). The organisms with very negative δ13C (lower than -30‰) are mainly subtidal red algae, with some intertidal red algae and a few green algae; those with very positive δ13C values (higher than -10‰) are mainly green macroalgae and seagrasses, with some red and brown macroalgae. The δ13C value correlates primarily with taxonomy and secondarily with ecology. None of the organisms with δ13C values lower than -30‰ have pyrenoids. Previous work showed a good correlation between δ13C values lower than -30‰ and the lack of CO2 concentrating mechanisms for several species of marine red algae. The extent to which the low δ13C values are confined to organisms with diffusive CO2 entry is discussed. Diffusive CO2 entry...Continue Reading

Citations

May 3, 2005·Annual Review of Plant Biology·Mario GiordanoJohn A Raven
May 20, 2008·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·John A RavenChristina L De La Rocha
Jan 11, 2012·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·John A RavenStephen C Maberly
Feb 18, 2011·Photosynthesis Research·John A RavenStephen C Maberly
Jan 7, 2014·Photosynthesis Research·John A RavenMario Giordano
Sep 1, 2012·Global Change Biology·Vivienne R JohnsonJason M Hall-Spencer
Oct 11, 2013·Proceedings. Biological Sciences·Christopher E CornwallCatriona L Hurd
Oct 16, 2015·Journal of Experimental Botany·John A Raven, John Beardall
May 6, 2017·Isotopes in Environmental and Health Studies·Vera WindeAnnika Mahler
Jun 3, 2017·Journal of Experimental Botany·Concepción IñiguezFrancisco J L Gordillo
Aug 11, 2017·Scientific Reports·Craig S Young, Christopher J Gobler
Dec 11, 2019·The Plant Journal : for Cell and Molecular Biology·Concepción IñiguezJeroni Galmés
Jul 6, 2014·Mycologia·G J Retallack, Ed Landing
May 16, 2017·Journal of Experimental Botany·John A RavenPatricia Sánchez-Baracaldo
Dec 24, 2018·Journal of Experimental Botany·Concepción IñiguezFrancisco J L Gordillo
Apr 13, 2020·Molecular Ecology Resources·Alejandra OrtegaCarlos M Duarte
Jun 18, 2020·Proceedings. Biological Sciences·Emily A MillerKyle S Van Houtan
May 9, 2009·Oecologia·Carlos Martínez del RioSandra P Gonzalez
Mar 6, 2015·Photosynthesis Research·Christopher E CornwallCatriona L Hurd
Oct 15, 2013·Journal of Experimental Botany·John A Raven
Sep 16, 2017·Journal of Experimental Botany·Anthony William D LarkumJohn A Raven
Apr 19, 2017·Scientific Reports·Christopher E CornwallCatriona L Hurd
Jul 31, 2012·Photosynthesis Research·John A Raven, Catriona L Hurd
Aug 16, 2015·Photosynthesis Research·María Jesús García-SánchezAntonio Flores-Moya
May 14, 2016·PloS One·Craig S Young, Christopher J Gobler
Sep 30, 2020·Environmental Microbiology·Anaïs MasséIsabelle Domart-Coulon
Jan 26, 2021·The Science of the Total Environment·Eun Ju KangChangsin Kim
Nov 7, 2020·The New Phytologist·Martino E MalerbaJohn Beardall

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