Effects of heavy metals on ultrastructure and HSP70s induction in the aquatic moss Leptodictyum riparium Hedw

International Journal of Phytoremediation
Sergio EspositoAdriana Basile

Abstract

The effects of heavy metals, both toxic (Pb, Cd) and essential (Cu, Zn) on the ultrastructure and the induction of Heat Shock Protein 70 (HSP70) have been studied in the aquatic moss Leptodictyum riparium Hedw. In vitro cultured L. riparium was treated with different heavy metals, both toxic, as cadmium or lead; and essential microelements such as Copper or Zinc concentrations ranging from 10(-3) to 10(-6) M to investigate both ultrastructural damage and HSP induction. TEM observations showed that sub-lethal concentrations of heavy metals caused only slight changes, largely localized in the chloroplasts. Among all the heavy metals tested, cadmium caused the most severe modifications. Heavy metals caused the decrease of the soluble protein content and the enhancement of proteins reacting versus HSP70 antibodies, suggesting that molecular chaperons might be involved in the resistance to toxic effects of lead, cadmium, copper and zinc. Therefore, the induction of HSP70 in L. riparium would confer a higher resistance to pollutants under stressful conditions lethal for other mosses and higher plant species. These results suggest that the moss L. riparium can tolerate heavy metals stress without incurring severe cellular/subcellular ...Continue Reading

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Citations

Apr 22, 2014·Ecotoxicology and Environmental Safety·L PaoliS Loppi
Feb 24, 2016·Frontiers in Plant Science·Samiksha SinghSheo M Prasad
Jun 6, 2015·Environmental Science and Pollution Research International·Luca PaoliStefano Loppi
Aug 30, 2014·Environmental Science and Pollution Research International·Nuno DurãesAbdelilah Dekayir
Dec 3, 2016·Journal of Trace Elements in Medicine and Biology : Organ of the Society for Minerals and Trace Elements (GMS)·Adriana BasileSergio Esposito
Aug 30, 2019·Environmental Science and Pollution Research International·Biswajita MahapatraAbanti Pradhan
Sep 10, 2020·International Journal of Molecular Sciences·Viviana MarescaAdriana Basile
Jun 2, 2017·Environmental Science and Pollution Research International·Adriana BasileSergio Esposito
Jul 9, 2020·International Journal of Molecular Sciences·Paride PapadiaGian-Pietro Di Sansebastiano
Sep 20, 2018·Bulletin of Environmental Contamination and Toxicology·Raphaël DecouDavid Delmail
Jan 15, 2021·Environmental Science and Pollution Research International·Amina RedhaMohammad Afzal
Nov 7, 2020·Environmental Science and Pollution Research International·Sandra Gómez-ArroyoOfelia Morton-Bermea

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Methods Mentioned

BETA
X-ray
Protein Assay

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