Rising CO2 will increase toxicity of marine dinoflagellate Alexandrium minutum
Ocean acidification caused by increasing emission of carbon dioxide (CO2) is expected to have profound impacts on marine ecological processes, including the formation and evolution of harmful algal blooms (HABs). We designed a set of experiments in the laboratory to examine the effects of increasing...
Published in: | Journal of Hazardous Materials |
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Online Access: | http://ir.qdio.ac.cn/handle/337002/178756 http://ir.qdio.ac.cn/handle/337002/178757 https://doi.org/10.1016/j.jhazmat.2022.128627 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/178757 2023-05-15T17:51:24+02:00 Rising CO2 will increase toxicity of marine dinoflagellate Alexandrium minutum Lian, Ziru Li, Fang He, Xiuping Chen, Junhui Yu, Ren-Cheng 2022-06-05 http://ir.qdio.ac.cn/handle/337002/178756 http://ir.qdio.ac.cn/handle/337002/178757 https://doi.org/10.1016/j.jhazmat.2022.128627 英语 eng ELSEVIER JOURNAL OF HAZARDOUS MATERIALS http://ir.qdio.ac.cn/handle/337002/178756 http://ir.qdio.ac.cn/handle/337002/178757 doi:10.1016/j.jhazmat.2022.128627 Paralytic shellfish toxins Rising CO2 Harmful algal bloom Alexandrium minutum LC-MS Engineering Environmental Sciences & Ecology Environmental Environmental Sciences 期刊论文 2022 ftchinacasciocas https://doi.org/10.1016/j.jhazmat.2022.128627 2022-07-29T12:11:44Z Ocean acidification caused by increasing emission of carbon dioxide (CO2) is expected to have profound impacts on marine ecological processes, including the formation and evolution of harmful algal blooms (HABs). We designed a set of experiments in the laboratory to examine the effects of increasing CO2 on the growth and toxicity of a toxic dinoflagellate Alexandrium minutum producing paralytic shellfish toxins (PSTs). It was found that high levels of CO2 (800 and 1200 ppm) significantly promoted the growth of A. minutum compared to the group (400 ppm) representing the current CO2 level. The total yields of PSTs by A. minutum, including both intracellular and extracellular toxins, were significantly enhanced, probably due to the induction of core enzyme activity and key amino acids synthesis for PST production. More interestingly, high level of CO2 promoted the transformation from gonyautoxin2 & 3 to gonyautoxin1 & 4 and depressed the release of PSTs from inside to outside of the cells. All these processes collectively led to an apparent increase of A. minutum toxicity. Our study demonstrated that rising CO2 would increase the risk of toxic A. minutum based on the comprehensive analyses of different processes including algal growth and toxin synthesis, transformation and release. Report Ocean acidification Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Journal of Hazardous Materials 431 128627 |
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Open Polar |
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Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Paralytic shellfish toxins Rising CO2 Harmful algal bloom Alexandrium minutum LC-MS Engineering Environmental Sciences & Ecology Environmental Environmental Sciences |
spellingShingle |
Paralytic shellfish toxins Rising CO2 Harmful algal bloom Alexandrium minutum LC-MS Engineering Environmental Sciences & Ecology Environmental Environmental Sciences Lian, Ziru Li, Fang He, Xiuping Chen, Junhui Yu, Ren-Cheng Rising CO2 will increase toxicity of marine dinoflagellate Alexandrium minutum |
topic_facet |
Paralytic shellfish toxins Rising CO2 Harmful algal bloom Alexandrium minutum LC-MS Engineering Environmental Sciences & Ecology Environmental Environmental Sciences |
description |
Ocean acidification caused by increasing emission of carbon dioxide (CO2) is expected to have profound impacts on marine ecological processes, including the formation and evolution of harmful algal blooms (HABs). We designed a set of experiments in the laboratory to examine the effects of increasing CO2 on the growth and toxicity of a toxic dinoflagellate Alexandrium minutum producing paralytic shellfish toxins (PSTs). It was found that high levels of CO2 (800 and 1200 ppm) significantly promoted the growth of A. minutum compared to the group (400 ppm) representing the current CO2 level. The total yields of PSTs by A. minutum, including both intracellular and extracellular toxins, were significantly enhanced, probably due to the induction of core enzyme activity and key amino acids synthesis for PST production. More interestingly, high level of CO2 promoted the transformation from gonyautoxin2 & 3 to gonyautoxin1 & 4 and depressed the release of PSTs from inside to outside of the cells. All these processes collectively led to an apparent increase of A. minutum toxicity. Our study demonstrated that rising CO2 would increase the risk of toxic A. minutum based on the comprehensive analyses of different processes including algal growth and toxin synthesis, transformation and release. |
format |
Report |
author |
Lian, Ziru Li, Fang He, Xiuping Chen, Junhui Yu, Ren-Cheng |
author_facet |
Lian, Ziru Li, Fang He, Xiuping Chen, Junhui Yu, Ren-Cheng |
author_sort |
Lian, Ziru |
title |
Rising CO2 will increase toxicity of marine dinoflagellate Alexandrium minutum |
title_short |
Rising CO2 will increase toxicity of marine dinoflagellate Alexandrium minutum |
title_full |
Rising CO2 will increase toxicity of marine dinoflagellate Alexandrium minutum |
title_fullStr |
Rising CO2 will increase toxicity of marine dinoflagellate Alexandrium minutum |
title_full_unstemmed |
Rising CO2 will increase toxicity of marine dinoflagellate Alexandrium minutum |
title_sort |
rising co2 will increase toxicity of marine dinoflagellate alexandrium minutum |
publisher |
ELSEVIER |
publishDate |
2022 |
url |
http://ir.qdio.ac.cn/handle/337002/178756 http://ir.qdio.ac.cn/handle/337002/178757 https://doi.org/10.1016/j.jhazmat.2022.128627 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
JOURNAL OF HAZARDOUS MATERIALS http://ir.qdio.ac.cn/handle/337002/178756 http://ir.qdio.ac.cn/handle/337002/178757 doi:10.1016/j.jhazmat.2022.128627 |
op_doi |
https://doi.org/10.1016/j.jhazmat.2022.128627 |
container_title |
Journal of Hazardous Materials |
container_volume |
431 |
container_start_page |
128627 |
_version_ |
1766158538205298688 |