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...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
|
| Series: | Plants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2223-7747/10/11/2349 |
| _version_ | 1797508752194142208 |
|---|---|
| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:07:57Z |
| format | Article |
| id | doaj.art-c8a2b60b5f4c4bb09b8da5daef07ee1f |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T05:07:57Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-c8a2b60b5f4c4bb09b8da5daef07ee1f2023-11-23T01:04:11ZengMDPI AGPlants2223-77472021-10-011011234910.3390/plants10112349Periphytic Algae and Cyanobacteria from the Rio Doce Basin Respond Differently to Metals and Salinity, Showing Different Potential for BioremediationMarcelo Pedrosa Gomes0Letícia Yoshie Kochi1Patrícia Lawane Freitas2Cleber Cunha Figueredo3Philippe Juneau4Laboratório de Fisiologia de Plantas sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco H. dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, Curitiba 81531-980, BrazilLaboratório de Fisiologia de Plantas sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco H. dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, Curitiba 81531-980, BrazilLaboratório de Fisiologia de Plantas sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco H. dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, Curitiba 81531-980, BrazilDepartamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerias, Avenida Antônio Carlos, 6627, Pampulha, C.P. 486, Belo Horizonte 31270-901, BrazilEcotoxicology of Aquatic Microorganisms Laboratory, GRIL, EcotoQ, TOXEN, Department of Biological Sciences, Université du Québec à Montréal, Montréal, QC H3C 3P8, CanadaWe 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.https://www.mdpi.com/2223-7747/10/11/2349ironmanganesesodium chlorideperiphytonstress |
| spellingShingle | 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 Plants iron manganese sodium chloride periphyton stress |
| title | 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_short | 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 |
| topic | iron manganese sodium chloride periphyton stress |
| url | https://www.mdpi.com/2223-7747/10/11/2349 |
| work_keys_str_mv | AT marcelopedrosagomes periphyticalgaeandcyanobacteriafromtheriodocebasinresponddifferentlytometalsandsalinityshowingdifferentpotentialforbioremediation AT leticiayoshiekochi periphyticalgaeandcyanobacteriafromtheriodocebasinresponddifferentlytometalsandsalinityshowingdifferentpotentialforbioremediation AT patricialawanefreitas periphyticalgaeandcyanobacteriafromtheriodocebasinresponddifferentlytometalsandsalinityshowingdifferentpotentialforbioremediation AT clebercunhafigueredo periphyticalgaeandcyanobacteriafromtheriodocebasinresponddifferentlytometalsandsalinityshowingdifferentpotentialforbioremediation AT philippejuneau periphyticalgaeandcyanobacteriafromtheriodocebasinresponddifferentlytometalsandsalinityshowingdifferentpotentialforbioremediation |