Cadmium accumulation in sunflower plants influenced by arbuscular mycorrhiza

International Journal of Phytoremediation
Sara Adrián López de AndradeMônica Ferreira de Abreu

Abstract

In order to investigate the cadmium (Cd) accumulation patterns and possible alleviation of Cd stress by mycorrhization, sunflower plants (Helianthus annuus L.) were grown in the presence or absence of Cd (20 micromol L(-1)) and inoculated or not inoculated with the arbuscular mycorrhizal fungus (AMF) Glomus intraradices. No visual symptoms of Cd phytotoxicity were observed; nevertheless, in non-mycorrhizal plants the presence of Cd decreased plant growth. The addition of Cd had no significant effect on either mycorrhizal colonization or the amount of extra-radical mycelia that was produced by the AMF. Cd accumulated mainly in roots; only 22% of the total Cd absorbed was translocated to the shoots, where it accumulated to an average of 228 mg Cd kg(-1). Although the shoot-to-root ratio of Cd was similar in both the AMF inoculated and non-inoculated plants, the total absorbed Cd was 23% higher in mycorrhizal plants. Cd concentration in AMF extra-radical mycelium was 728 microg g(-1) dry weight. Despite the greater absorption of Cd, mycorrhizal plants showed higher photosynthetic pigment concentrations and shoot P contents. Cd also influenced mineral nutrition, leading to decreased Ca and Cu shoot concentrations; N, Fe and Cu shoo...Continue Reading

References

May 5, 2001·Plant Science : an International Journal of Experimental Plant Biology·A HegedüsG Horváth
Apr 25, 2002·Journal of Experimental Botany·Facundo Rivera-BecerrilVivienne Gianinazzi-Pearson
May 9, 2002·Journal of Experimental Botany·Andres Schützendübel, Andrea Polle
Aug 15, 2002·Plant Physiology·Fabio F NocitoGian Attilio Sacchi
Dec 17, 2002·Phytochemistry·Patricia R S BoscoloRenato A Jorge
Jan 1, 1995·Environmental Pollution·K G ShettyA P Schwab
Feb 9, 2005·International Journal of Phytoremediation·A Hovsepyan, S Greipsson
Jul 1, 2005·Functional Plant Biology : FPB·Priscila L GratãoRicardo A Azevedo

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Citations

May 10, 2012·International Journal of Phytoremediation·Neera Garg, Purnima Bhandari
Dec 24, 2013·Environmental Science and Pollution Research International·Benoît Cloutier-HurteauFrançois Courchesne
May 11, 2015·The Science of the Total Environment·Stéphane FirminAnissa Lounès-Hadj Sahraoui
Mar 13, 2015·International Journal of Phytoremediation· AmnaHassan Javed Chaudhary
Nov 2, 2016·Journal of Experimental Botany·Nuria FerrolPaola Vargas
Mar 1, 2019·International Journal of Phytoremediation·Reda E Abdelhameed, Rabab A Metwally
Sep 26, 2019·Archives of Microbiology·E Janeeshma, Jos T Puthur
Nov 28, 2017·Bulletin of Environmental Contamination and Toxicology·Mahmut PalutogluAhmet Sasmaz
Feb 15, 2013·Environmental Science. Processes & Impacts·Fa Yuan WangYou Jun Li
Sep 9, 2020·International Journal of Phytoremediation·Leila TabriziBabak Motesharezadeh

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Methods Mentioned

BETA
protein assay

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