Periphytic Algae and Cyanobacteria from the Rio Doce Basin Respond Differently to Metals and Salinity, Showing Different Potential for Bioremediation

We have studied the isolated and combined effects of metals (Fe and Mn) and NaCl the on growth, physiology, and metal-uptake capacity of two photosynthetic periphytic species—<i>Synechococcus elongatus</i> (Cyanobacteria) and <i>Chlorococcum infusionum</i> (Chlorophyta)—isola...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Marcelo Pedrosa Gomes, Letícia Yoshie Kochi, Patrícia Lawane Freitas, Cleber Cunha Figueredo, Philippe Juneau
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	iron manganese sodium chloride periphyton stress Botany QK1-989
Acceso en línea:	https://doaj.org/article/c8a2b60b5f4c4bb09b8da5daef07ee1f
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:c8a2b60b5f4c4bb09b8da5daef07ee1f
record_format	dspace
spelling	oai:doaj.org-article:c8a2b60b5f4c4bb09b8da5daef07ee1f2021-11-25T18:45:39ZPeriphytic Algae and Cyanobacteria from the Rio Doce Basin Respond Differently to Metals and Salinity, Showing Different Potential for Bioremediation10.3390/plants101123492223-7747https://doaj.org/article/c8a2b60b5f4c4bb09b8da5daef07ee1f2021-10-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2349https://doaj.org/toc/2223-7747We have studied the isolated and combined effects of metals (Fe and Mn) and NaCl the on growth, physiology, and metal-uptake capacity of two photosynthetic periphytic species—<i>Synechococcus elongatus</i> (Cyanobacteria) and <i>Chlorococcum infusionum</i> (Chlorophyta)—isolated from an impacted area of the Rio Doce River (Brazil) after the Fundão dam collapse. The effective concentrations found to reduce 10 and 50% growth were 15.2 and 31.6 mg Fe L<sup>−1</sup>, and 2.5 and 7.9 mg Mn L<sup>−1</sup> for <i>S. elongatus</i> and 53.9 and 61.6 mg Fe L<sup>−1</sup>, and 53.2 and 60.9 mg Mn L<sup>−1</sup> for <i>C. infusionum</i>. Although the metal toxicity was related to oxidative stress, both species showed activation of antioxidant systems under phytotoxic concentrations of Fe and Mn. By binding large concentrations of metals on its cell surface and thus avoiding their entrance into the cells, <i>C. infusionum</i> presents greater resistance to Fe and Mn than <i>S. elongatus</i>. Under environmental realistic concentrations of Fe and Mn in river water from the Rio Doce Basin, <i>S. elongatus</i> and <i>C. infusionum</i> showed a metal removal efficiency of 42 and 65% and 53 and 79%, respectively after 96 h. These species were insensitive to increased NaCl concentrations which, in addition, did not disrupt the metal removal capacity of the species. Due to their salt and metal tolerance, <i>S. elongatus</i> and <i>C. infusionum</i> can be used for the remediation of waters contaminated with Fe and Mn.Marcelo Pedrosa GomesLetícia Yoshie KochiPatrícia Lawane FreitasCleber Cunha FigueredoPhilippe JuneauMDPI AGarticleironmanganesesodium chlorideperiphytonstressBotanyQK1-989ENPlants, Vol 10, Iss 2349, p 2349 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	iron manganese sodium chloride periphyton stress Botany QK1-989
spellingShingle	iron manganese sodium chloride periphyton stress Botany QK1-989 Marcelo Pedrosa Gomes Letícia Yoshie Kochi Patrícia Lawane Freitas Cleber Cunha Figueredo Philippe Juneau Periphytic Algae and Cyanobacteria from the Rio Doce Basin Respond Differently to Metals and Salinity, Showing Different Potential for Bioremediation
description	We have studied the isolated and combined effects of metals (Fe and Mn) and NaCl the on growth, physiology, and metal-uptake capacity of two photosynthetic periphytic species—<i>Synechococcus elongatus</i> (Cyanobacteria) and <i>Chlorococcum infusionum</i> (Chlorophyta)—isolated from an impacted area of the Rio Doce River (Brazil) after the Fundão dam collapse. The effective concentrations found to reduce 10 and 50% growth were 15.2 and 31.6 mg Fe L<sup>−1</sup>, and 2.5 and 7.9 mg Mn L<sup>−1</sup> for <i>S. elongatus</i> and 53.9 and 61.6 mg Fe L<sup>−1</sup>, and 53.2 and 60.9 mg Mn L<sup>−1</sup> for <i>C. infusionum</i>. Although the metal toxicity was related to oxidative stress, both species showed activation of antioxidant systems under phytotoxic concentrations of Fe and Mn. By binding large concentrations of metals on its cell surface and thus avoiding their entrance into the cells, <i>C. infusionum</i> presents greater resistance to Fe and Mn than <i>S. elongatus</i>. Under environmental realistic concentrations of Fe and Mn in river water from the Rio Doce Basin, <i>S. elongatus</i> and <i>C. infusionum</i> showed a metal removal efficiency of 42 and 65% and 53 and 79%, respectively after 96 h. These species were insensitive to increased NaCl concentrations which, in addition, did not disrupt the metal removal capacity of the species. Due to their salt and metal tolerance, <i>S. elongatus</i> and <i>C. infusionum</i> can be used for the remediation of waters contaminated with Fe and Mn.
format	article
author	Marcelo Pedrosa Gomes Letícia Yoshie Kochi Patrícia Lawane Freitas Cleber Cunha Figueredo Philippe Juneau
author_facet	Marcelo Pedrosa Gomes Letícia Yoshie Kochi Patrícia Lawane Freitas Cleber Cunha Figueredo Philippe Juneau
author_sort	Marcelo Pedrosa Gomes
title	Periphytic Algae and Cyanobacteria from the Rio Doce Basin Respond Differently to Metals and Salinity, Showing Different Potential for Bioremediation
title_short	Periphytic Algae and Cyanobacteria from the Rio Doce Basin Respond Differently to Metals and Salinity, Showing Different Potential for Bioremediation
title_full	Periphytic Algae and Cyanobacteria from the Rio Doce Basin Respond Differently to Metals and Salinity, Showing Different Potential for Bioremediation
title_fullStr	Periphytic Algae and Cyanobacteria from the Rio Doce Basin Respond Differently to Metals and Salinity, Showing Different Potential for Bioremediation
title_full_unstemmed	Periphytic Algae and Cyanobacteria from the Rio Doce Basin Respond Differently to Metals and Salinity, Showing Different Potential for Bioremediation
title_sort	periphytic algae and cyanobacteria from the rio doce basin respond differently to metals and salinity, showing different potential for bioremediation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c8a2b60b5f4c4bb09b8da5daef07ee1f
work_keys_str_mv	AT marcelopedrosagomes periphyticalgaeandcyanobacteriafromtheriodocebasinresponddifferentlytometalsandsalinityshowingdifferentpotentialforbioremediation AT leticiayoshiekochi periphyticalgaeandcyanobacteriafromtheriodocebasinresponddifferentlytometalsandsalinityshowingdifferentpotentialforbioremediation AT patricialawanefreitas periphyticalgaeandcyanobacteriafromtheriodocebasinresponddifferentlytometalsandsalinityshowingdifferentpotentialforbioremediation AT clebercunhafigueredo periphyticalgaeandcyanobacteriafromtheriodocebasinresponddifferentlytometalsandsalinityshowingdifferentpotentialforbioremediation AT philippejuneau periphyticalgaeandcyanobacteriafromtheriodocebasinresponddifferentlytometalsandsalinityshowingdifferentpotentialforbioremediation
_version_	1718410738282790912

Periphytic Algae and Cyanobacteria from the Rio Doce Basin Respond Differently to Metals and Salinity, Showing Different Potential for Bioremediation

Ejemplares similares