Cadmium and Chromium Toxicity to Pseudokirchneriella subcapitata and Microcystis aeruginosa
The toxicity of cadmium and chromium to Pseudokirchneriella subcapitata and Microcystis aeruginosa was evaluated through algal growth rate during 96h exposure bioassays. Free metal ion concentrations were obtained using MINEQL+ 4.61 and used for IC50 determination. Metal accumulations by the microor...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Instituto de Tecnologia do Paraná (Tecpar)
2012-02-01
|
| Series: | Brazilian Archives of Biology and Technology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000100020 |
| _version_ | 1819064638475599872 |
|---|---|
| author | Suzelei Rodgher Evaldo Luiz Gaeta Espíndola Fernanda Cristina Fonseca Simões Alessandra Emanuele Tonietto |
| author_facet | Suzelei Rodgher Evaldo Luiz Gaeta Espíndola Fernanda Cristina Fonseca Simões Alessandra Emanuele Tonietto |
| author_sort | Suzelei Rodgher |
| collection | DOAJ |
| description | The toxicity of cadmium and chromium to Pseudokirchneriella subcapitata and Microcystis aeruginosa was evaluated through algal growth rate during 96h exposure bioassays. Free metal ion concentrations were obtained using MINEQL+ 4.61 and used for IC50 determination. Metal accumulations by the microorganisms were determined and they were found to be dependent on the concentration of Cd2+ and Cr6+. IC50 for P. subcapitata were 0.60 µmol L-1 free Cd2+ and 20 µmol L-1 free Cr6+, while the IC50 values for M. aeruginosa were 0.01 µmol L-1 Cd2+ and 11.07 µmol L-1 Cr6+ . P. subcapitata accumulated higher metal concentrations (0.001 -0.05 µmol Cd mg-1 dry wt. and 0.001 -0.04 µmol Cr mg-1 dry wt) than the cyanobacteria (0.001 -0.01 µmol Cd mg-1 dry wt and 0.001 -0.02 µmol Cr mg-1 dry wt). Cadmium was more toxic than chromium to both the microorganisms. |
| first_indexed | 2024-12-21T15:33:45Z |
| format | Article |
| id | doaj.art-db4025b39b14468a9266785a8ab47c5f |
| institution | Directory Open Access Journal |
| issn | 1516-8913 1678-4324 |
| language | English |
| last_indexed | 2024-12-21T15:33:45Z |
| publishDate | 2012-02-01 |
| publisher | Instituto de Tecnologia do Paraná (Tecpar) |
| record_format | Article |
| series | Brazilian Archives of Biology and Technology |
| spelling | doaj.art-db4025b39b14468a9266785a8ab47c5f2022-12-21T18:58:41ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242012-02-0155116116910.1590/S1516-89132012000100020Cadmium and Chromium Toxicity to Pseudokirchneriella subcapitata and Microcystis aeruginosaSuzelei RodgherEvaldo Luiz Gaeta EspíndolaFernanda Cristina Fonseca SimõesAlessandra Emanuele ToniettoThe toxicity of cadmium and chromium to Pseudokirchneriella subcapitata and Microcystis aeruginosa was evaluated through algal growth rate during 96h exposure bioassays. Free metal ion concentrations were obtained using MINEQL+ 4.61 and used for IC50 determination. Metal accumulations by the microorganisms were determined and they were found to be dependent on the concentration of Cd2+ and Cr6+. IC50 for P. subcapitata were 0.60 µmol L-1 free Cd2+ and 20 µmol L-1 free Cr6+, while the IC50 values for M. aeruginosa were 0.01 µmol L-1 Cd2+ and 11.07 µmol L-1 Cr6+ . P. subcapitata accumulated higher metal concentrations (0.001 -0.05 µmol Cd mg-1 dry wt. and 0.001 -0.04 µmol Cr mg-1 dry wt) than the cyanobacteria (0.001 -0.01 µmol Cd mg-1 dry wt and 0.001 -0.02 µmol Cr mg-1 dry wt). Cadmium was more toxic than chromium to both the microorganisms.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000100020Toxic effectsalgae sensitivitymetal accumulationIC50 |
| spellingShingle | Suzelei Rodgher Evaldo Luiz Gaeta Espíndola Fernanda Cristina Fonseca Simões Alessandra Emanuele Tonietto Cadmium and Chromium Toxicity to Pseudokirchneriella subcapitata and Microcystis aeruginosa Brazilian Archives of Biology and Technology Toxic effects algae sensitivity metal accumulation IC50 |
| title | Cadmium and Chromium Toxicity to Pseudokirchneriella subcapitata and Microcystis aeruginosa |
| title_full | Cadmium and Chromium Toxicity to Pseudokirchneriella subcapitata and Microcystis aeruginosa |
| title_fullStr | Cadmium and Chromium Toxicity to Pseudokirchneriella subcapitata and Microcystis aeruginosa |
| title_full_unstemmed | Cadmium and Chromium Toxicity to Pseudokirchneriella subcapitata and Microcystis aeruginosa |
| title_short | Cadmium and Chromium Toxicity to Pseudokirchneriella subcapitata and Microcystis aeruginosa |
| title_sort | cadmium and chromium toxicity to pseudokirchneriella subcapitata and microcystis aeruginosa |
| topic | Toxic effects algae sensitivity metal accumulation IC50 |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000100020 |
| work_keys_str_mv | AT suzeleirodgher cadmiumandchromiumtoxicitytopseudokirchneriellasubcapitataandmicrocystisaeruginosa AT evaldoluizgaetaespindola cadmiumandchromiumtoxicitytopseudokirchneriellasubcapitataandmicrocystisaeruginosa AT fernandacristinafonsecasimoes cadmiumandchromiumtoxicitytopseudokirchneriellasubcapitataandmicrocystisaeruginosa AT alessandraemanueletonietto cadmiumandchromiumtoxicitytopseudokirchneriellasubcapitataandmicrocystisaeruginosa |