Okviyoandra Akhyar , Kuo Hong Wong , Rimana Islam Papry , Yusuke Kato , Asami Suzuki Mashio , Masahiko Zuka , Hiroshi Hasegawa
{"title":"锌离子和铁斑块共同减轻马尾藻铜毒性","authors":"Okviyoandra Akhyar , Kuo Hong Wong , Rimana Islam Papry , Yusuke Kato , Asami Suzuki Mashio , Masahiko Zuka , Hiroshi Hasegawa","doi":"10.1016/j.aquabot.2023.103700","DOIUrl":null,"url":null,"abstract":"<div><p>Excessive Cu is toxic to <em>Sargassum patens</em>. Understanding the biological control mechanism behind Cu uptake, including the effect of competitive behavior with other metals, such as Zn, is beneficial for expanding our knowledge of species-specific metal uptake behavior. In this study, we cultured a macroalgal species, <em>S. patens</em>, and exposed it to Cu and Zn to evaluate the metal uptake behavior and biological response of <em>S. patens.</em> Exposure to Cu and Zn under different culture conditions not only affected the uptake behavior of each metal but also influenced <em>S. patens</em> growth. At low concentrations, neither metal significantly affected algal growth, whereas high concentrations of Cu negatively affected the photosynthetic activity and growth rate of <em>S. patens</em>. The presence of Zn at equally high concentrations was observed to increase the tolerance of <em>S. patens</em> to Cu exposure. Fe plaque also played a role in modulating Cu exposure; its absence increased Cu accumulation and suppressed Zn accumulation, subsequently decreasing the ability of Zn to alleviate Cu toxicity, which in turn increased algal stress.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Zn ions and Fe plaque jointly alleviate Cu toxicity in Sargassum patens C. Agardh\",\"authors\":\"Okviyoandra Akhyar , Kuo Hong Wong , Rimana Islam Papry , Yusuke Kato , Asami Suzuki Mashio , Masahiko Zuka , Hiroshi Hasegawa\",\"doi\":\"10.1016/j.aquabot.2023.103700\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Excessive Cu is toxic to <em>Sargassum patens</em>. Understanding the biological control mechanism behind Cu uptake, including the effect of competitive behavior with other metals, such as Zn, is beneficial for expanding our knowledge of species-specific metal uptake behavior. In this study, we cultured a macroalgal species, <em>S. patens</em>, and exposed it to Cu and Zn to evaluate the metal uptake behavior and biological response of <em>S. patens.</em> Exposure to Cu and Zn under different culture conditions not only affected the uptake behavior of each metal but also influenced <em>S. patens</em> growth. At low concentrations, neither metal significantly affected algal growth, whereas high concentrations of Cu negatively affected the photosynthetic activity and growth rate of <em>S. patens</em>. The presence of Zn at equally high concentrations was observed to increase the tolerance of <em>S. patens</em> to Cu exposure. Fe plaque also played a role in modulating Cu exposure; its absence increased Cu accumulation and suppressed Zn accumulation, subsequently decreasing the ability of Zn to alleviate Cu toxicity, which in turn increased algal stress.</p></div>\",\"PeriodicalId\":8273,\"journal\":{\"name\":\"Aquatic Botany\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2023-07-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Aquatic Botany\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0304377023000852\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MARINE & FRESHWATER BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aquatic Botany","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304377023000852","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
Zn ions and Fe plaque jointly alleviate Cu toxicity in Sargassum patens C. Agardh
Excessive Cu is toxic to Sargassum patens. Understanding the biological control mechanism behind Cu uptake, including the effect of competitive behavior with other metals, such as Zn, is beneficial for expanding our knowledge of species-specific metal uptake behavior. In this study, we cultured a macroalgal species, S. patens, and exposed it to Cu and Zn to evaluate the metal uptake behavior and biological response of S. patens. Exposure to Cu and Zn under different culture conditions not only affected the uptake behavior of each metal but also influenced S. patens growth. At low concentrations, neither metal significantly affected algal growth, whereas high concentrations of Cu negatively affected the photosynthetic activity and growth rate of S. patens. The presence of Zn at equally high concentrations was observed to increase the tolerance of S. patens to Cu exposure. Fe plaque also played a role in modulating Cu exposure; its absence increased Cu accumulation and suppressed Zn accumulation, subsequently decreasing the ability of Zn to alleviate Cu toxicity, which in turn increased algal stress.
期刊介绍:
Aquatic Botany offers a platform for papers relevant to a broad international readership on fundamental and applied aspects of marine and freshwater macroscopic plants in a context of ecology or environmental biology. This includes molecular, biochemical and physiological aspects of macroscopic aquatic plants as well as the classification, structure, function, dynamics and ecological interactions in plant-dominated aquatic communities and ecosystems. It is an outlet for papers dealing with research on the consequences of disturbance and stressors (e.g. environmental fluctuations and climate change, pollution, grazing and pathogens), use and management of aquatic plants (plant production and decomposition, commercial harvest, plant control) and the conservation of aquatic plant communities (breeding, transplantation and restoration). Specialized publications on certain rare taxa or papers on aquatic macroscopic plants from under-represented regions in the world can also find their place, subject to editor evaluation. Studies on fungi or microalgae will remain outside the scope of Aquatic Botany.