Enhancing bioremediation potential of microalgae Chlorella vulgaris and Scenedesmus acutus by NaCl for pyrene degradation

IF 3.1 4区 生物学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Rupal Singh Tomar, Prabha Rai-Kalal, Anjana Jajoo
{"title":"Enhancing bioremediation potential of microalgae Chlorella vulgaris and Scenedesmus acutus by NaCl for pyrene degradation","authors":"Rupal Singh Tomar,&nbsp;Prabha Rai-Kalal,&nbsp;Anjana Jajoo","doi":"10.1007/s10532-024-10071-8","DOIUrl":null,"url":null,"abstract":"<div><p>Microalgae are increasingly recognized as promising organisms for bioremediation of organic pollutants. This study investigates the potential of enhancing the bioremediation efficiency of pyrene (PYR), a polycyclic aromatic hydrocarbon (PAH), through NaCl induced physiological and biochemical alterations in two microalgae species, <i>Chlorella vulgaris</i> and <i>Scenedesmus acutus</i>. Our findings reveal significant improvement in PYR removal when these microalgae were cultivated in the presence of 0.1% NaCl where PYR removal increased from 54 to 74% for <i>C. vulgaris</i> and from 26 to 75% for <i>S. acutus</i>. However, it was observed that NaCl induced stress had varying effects on the two species. While <i>C. vulgaris</i> exhibited increased PYR removal, it experienced reduced growth and biomass production, as well as lower photosynthetic efficiency when exposed to PYR and PYR + NaCl. In contrast, <i>S. acutus</i> displayed better growth and biomass accumulation under PYR + NaCl conditions, making it a more efficient candidate for enhancing PYR bioremediation in the presence of NaCl. In addition to assessing growth and biochemical content, we also investigated stress biomarkers, such as lipid peroxidation, polyphenol and proline contents. These findings suggest that <i>S. acutus</i> holds promise as an alternative microalgae species for PYR removal in the presence of NaCl, offering potential advantages in terms of bioremediation efficiency and ecological sustainability. This study highlights the importance of understanding the physiological and biochemical responses of microalgae to environmental stressors, which can be harnessed to optimize bioremediation strategies for the removal of organic pollutants like PYR.</p></div>","PeriodicalId":486,"journal":{"name":"Biodegradation","volume":"35 5","pages":"687 - 699"},"PeriodicalIF":3.1000,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biodegradation","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10532-024-10071-8","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Microalgae are increasingly recognized as promising organisms for bioremediation of organic pollutants. This study investigates the potential of enhancing the bioremediation efficiency of pyrene (PYR), a polycyclic aromatic hydrocarbon (PAH), through NaCl induced physiological and biochemical alterations in two microalgae species, Chlorella vulgaris and Scenedesmus acutus. Our findings reveal significant improvement in PYR removal when these microalgae were cultivated in the presence of 0.1% NaCl where PYR removal increased from 54 to 74% for C. vulgaris and from 26 to 75% for S. acutus. However, it was observed that NaCl induced stress had varying effects on the two species. While C. vulgaris exhibited increased PYR removal, it experienced reduced growth and biomass production, as well as lower photosynthetic efficiency when exposed to PYR and PYR + NaCl. In contrast, S. acutus displayed better growth and biomass accumulation under PYR + NaCl conditions, making it a more efficient candidate for enhancing PYR bioremediation in the presence of NaCl. In addition to assessing growth and biochemical content, we also investigated stress biomarkers, such as lipid peroxidation, polyphenol and proline contents. These findings suggest that S. acutus holds promise as an alternative microalgae species for PYR removal in the presence of NaCl, offering potential advantages in terms of bioremediation efficiency and ecological sustainability. This study highlights the importance of understanding the physiological and biochemical responses of microalgae to environmental stressors, which can be harnessed to optimize bioremediation strategies for the removal of organic pollutants like PYR.

通过氯化钠提高微藻 Chlorella vulgaris 和 Scenedesmus acutus 降解芘的生物修复潜力。
微藻类越来越被认为是有希望对有机污染物进行生物修复的生物。本研究探讨了通过氯化钠诱导两种微藻(Chlorella vulgaris 和 Scenedesmus acutus)的生理和生化变化来提高芘(PYR)(一种多环芳烃(PAH))生物修复效率的潜力。我们的研究结果表明,在 0.1% NaCl 的条件下培养这些微藻时,PYR 的去除率有了明显提高,其中绿藻的PYR 去除率从 54% 提高到 74%,尖嘴藻的PYR 去除率从 26% 提高到 75%。但观察发现,NaCl 诱导的压力对这两种生物的影响各不相同。在PYR和PYR+NaCl条件下,C. vulgaris的PYR去除率增加,但其生长和生物量产量减少,光合效率降低。相比之下,S. acutus 在PYR + NaCl 条件下表现出更好的生长和生物量积累,使其成为在 NaCl 存在条件下提高PYR 生物修复能力的更有效候选者。除了评估生长和生化含量外,我们还研究了应激生物标志物,如脂质过氧化、多酚和脯氨酸含量。这些研究结果表明,S. acutus有望成为在NaCl存在下去除PYR的替代微藻物种,在生物修复效率和生态可持续性方面具有潜在优势。这项研究强调了了解微藻对环境胁迫的生理和生化反应的重要性,可以利用这些反应来优化去除PYR等有机污染物的生物修复策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Biodegradation
Biodegradation 工程技术-生物工程与应用微生物
CiteScore
5.60
自引率
0.00%
发文量
36
审稿时长
6 months
期刊介绍: Biodegradation publishes papers, reviews and mini-reviews on the biotransformation, mineralization, detoxification, recycling, amelioration or treatment of chemicals or waste materials by naturally-occurring microbial strains, microbial associations, or recombinant organisms. Coverage spans a range of topics, including Biochemistry of biodegradative pathways; Genetics of biodegradative organisms and development of recombinant biodegrading organisms; Molecular biology-based studies of biodegradative microbial communities; Enhancement of naturally-occurring biodegradative properties and activities. Also featured are novel applications of biodegradation and biotransformation technology, to soil, water, sewage, heavy metals and radionuclides, organohalogens, high-COD wastes, straight-, branched-chain and aromatic hydrocarbons; Coverage extends to design and scale-up of laboratory processes and bioreactor systems. Also offered are papers on economic and legal aspects of biological treatment of waste.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信