Methodological advances and future directions of microalgal bioassays for evaluation of potential toxicity in environmental samples: A review
Microalgal bioassays are widely applied to evaluate the potential toxicity of various persistent toxic substances in environmental samples due to multiple advantages, including high sensitivity, short test duration, and cost-effectiveness. Microalgal bioassay is gradually developing in method, and t...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-03-01
|
| Series: | Environment International |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0160412023001423 |
| _version_ | 1797868305389715456 |
|---|---|
| author | Junghyun Lee Seongjin Hong Seong-Ah An Jong Seong Khim |
| author_facet | Junghyun Lee Seongjin Hong Seong-Ah An Jong Seong Khim |
| author_sort | Junghyun Lee |
| collection | DOAJ |
| description | Microalgal bioassays are widely applied to evaluate the potential toxicity of various persistent toxic substances in environmental samples due to multiple advantages, including high sensitivity, short test duration, and cost-effectiveness. Microalgal bioassay is gradually developing in method, and the scope of application to environmental samples is also expanding. Here, we reviewed the published literature on microalgal bioassays for environmental assessments, focusing on types of samples, sample preparation methods, and endpoints, and highlighted key scientific advancements. Bibliographic analysis was performed with the keywords ‘microalgae’ and ‘toxicity’ or ‘bioassay’, and ‘microalgal toxicity’; 89 research articles were selected and reviewed. Traditionally, most studies implementing microalgal bioassays focused on water samples (44%) with passive samplers (38%). Studies using the direct exposure method (41%) of injecting microalgae into sampled water mainly evaluated toxic effects by growth inhibition (63%). Recently, various automated sampling techniques, in situ bioanalytical methods with multiple endpoints, and targeted and non-targeted chemical analyses have been applied. More research is needed to identify causative toxicants affecting microalgae and to quantify the cause-effect relationships. This study provides the first comprehensive overview of recent advances in microalgal bioassays performed with environmental samples, suggesting future research directions based on current understanding and limitations. |
| first_indexed | 2024-04-09T23:54:58Z |
| format | Article |
| id | doaj.art-b22fcca5a91d480d953c3ba4f606f6a4 |
| institution | Directory Open Access Journal |
| issn | 0160-4120 |
| language | English |
| last_indexed | 2024-04-09T23:54:58Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Environment International |
| spelling | doaj.art-b22fcca5a91d480d953c3ba4f606f6a42023-03-17T04:32:29ZengElsevierEnvironment International0160-41202023-03-01173107869Methodological advances and future directions of microalgal bioassays for evaluation of potential toxicity in environmental samples: A reviewJunghyun Lee0Seongjin Hong1Seong-Ah An2Jong Seong Khim3School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of KoreaDepartment of Marine Environmental Science, Chungnam National University, Daejeon 34134, Republic of Korea; Corresponding authors.Department of Marine Environmental Science, Chungnam National University, Daejeon 34134, Republic of KoreaSchool of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea; Corresponding authors.Microalgal bioassays are widely applied to evaluate the potential toxicity of various persistent toxic substances in environmental samples due to multiple advantages, including high sensitivity, short test duration, and cost-effectiveness. Microalgal bioassay is gradually developing in method, and the scope of application to environmental samples is also expanding. Here, we reviewed the published literature on microalgal bioassays for environmental assessments, focusing on types of samples, sample preparation methods, and endpoints, and highlighted key scientific advancements. Bibliographic analysis was performed with the keywords ‘microalgae’ and ‘toxicity’ or ‘bioassay’, and ‘microalgal toxicity’; 89 research articles were selected and reviewed. Traditionally, most studies implementing microalgal bioassays focused on water samples (44%) with passive samplers (38%). Studies using the direct exposure method (41%) of injecting microalgae into sampled water mainly evaluated toxic effects by growth inhibition (63%). Recently, various automated sampling techniques, in situ bioanalytical methods with multiple endpoints, and targeted and non-targeted chemical analyses have been applied. More research is needed to identify causative toxicants affecting microalgae and to quantify the cause-effect relationships. This study provides the first comprehensive overview of recent advances in microalgal bioassays performed with environmental samples, suggesting future research directions based on current understanding and limitations.http://www.sciencedirect.com/science/article/pii/S0160412023001423Microalgal assayIn vivo bioassayCoastal healthMarine pollutionBibliometric network analysis |
| spellingShingle | Junghyun Lee Seongjin Hong Seong-Ah An Jong Seong Khim Methodological advances and future directions of microalgal bioassays for evaluation of potential toxicity in environmental samples: A review Environment International Microalgal assay In vivo bioassay Coastal health Marine pollution Bibliometric network analysis |
| title | Methodological advances and future directions of microalgal bioassays for evaluation of potential toxicity in environmental samples: A review |
| title_full | Methodological advances and future directions of microalgal bioassays for evaluation of potential toxicity in environmental samples: A review |
| title_fullStr | Methodological advances and future directions of microalgal bioassays for evaluation of potential toxicity in environmental samples: A review |
| title_full_unstemmed | Methodological advances and future directions of microalgal bioassays for evaluation of potential toxicity in environmental samples: A review |
| title_short | Methodological advances and future directions of microalgal bioassays for evaluation of potential toxicity in environmental samples: A review |
| title_sort | methodological advances and future directions of microalgal bioassays for evaluation of potential toxicity in environmental samples a review |
| topic | Microalgal assay In vivo bioassay Coastal health Marine pollution Bibliometric network analysis |
| url | http://www.sciencedirect.com/science/article/pii/S0160412023001423 |
| work_keys_str_mv | AT junghyunlee methodologicaladvancesandfuturedirectionsofmicroalgalbioassaysforevaluationofpotentialtoxicityinenvironmentalsamplesareview AT seongjinhong methodologicaladvancesandfuturedirectionsofmicroalgalbioassaysforevaluationofpotentialtoxicityinenvironmentalsamplesareview AT seongahan methodologicaladvancesandfuturedirectionsofmicroalgalbioassaysforevaluationofpotentialtoxicityinenvironmentalsamplesareview AT jongseongkhim methodologicaladvancesandfuturedirectionsofmicroalgalbioassaysforevaluationofpotentialtoxicityinenvironmentalsamplesareview |