{"title":"Light intensity affects tolerance of pyrene in <i>Chlorella vulgaris</i> and <i>Scenedesmus acutus</i>.","authors":"R S Tomar, R Atre, D Sharma, P Rai-Kalal, A Jajoo","doi":"10.32615/ps.2022.044","DOIUrl":null,"url":null,"abstract":"<p><p>The impact of light intensity on the toxicity of pyrene, a 4-ring polycyclic aromatic hydrocarbon (PAH), was studied in <i>Chlorella vulgaris</i> and <i>Scenedesmus acutus</i>. Both species were cultured under low light, LL [50-60 μmol(photon) m<sup>-2</sup> s<sup>-1</sup>], and high light, HL [100-110 μmol(photon) m<sup>-2</sup> s<sup>-1</sup>] conditions to study the effects of pyrene (PYR) toxicity on growth parameters, the content of biomolecules, chlorophyll content, and photosynthetic efficiency. In the presence of PYR, <i>S. acutus</i> could grow well in LL and HL intensity. On the other hand, <i>C. vulgaris</i> showed a drastic decrease in growth and photosynthesis during HL conditions due to PYR toxicity. Regulation of nonphotochemical and photochemical quenching was responsible for the survival of <i>S. acutus</i> under PYR toxicity in LL and HL conditions. Thus, <i>S. acutus</i> seems to be a more promising candidate for pyrene degradation under varying light conditions.</p>","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"3 1","pages":"168-176"},"PeriodicalIF":2.1000,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515813/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Photosynthetica","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.32615/ps.2022.044","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
The impact of light intensity on the toxicity of pyrene, a 4-ring polycyclic aromatic hydrocarbon (PAH), was studied in Chlorella vulgaris and Scenedesmus acutus. Both species were cultured under low light, LL [50-60 μmol(photon) m-2 s-1], and high light, HL [100-110 μmol(photon) m-2 s-1] conditions to study the effects of pyrene (PYR) toxicity on growth parameters, the content of biomolecules, chlorophyll content, and photosynthetic efficiency. In the presence of PYR, S. acutus could grow well in LL and HL intensity. On the other hand, C. vulgaris showed a drastic decrease in growth and photosynthesis during HL conditions due to PYR toxicity. Regulation of nonphotochemical and photochemical quenching was responsible for the survival of S. acutus under PYR toxicity in LL and HL conditions. Thus, S. acutus seems to be a more promising candidate for pyrene degradation under varying light conditions.
期刊介绍：
Photosynthetica publishes original scientific papers and brief communications, reviews on specialized topics, book reviews and announcements and reports covering wide range of photosynthesis research or research including photosynthetic parameters of both experimental and theoretical nature and dealing with physiology, biophysics, biochemistry, molecular biology on one side and leaf optics, stress physiology and ecology of photosynthesis on the other side.
The language of journal is English (British or American). Papers should not be published or under consideration for publication elsewhere.
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