光照强度影响普通小球藻和尖小球藻对芘的耐受性

IF 2.1 4区生物学 Q2 PLANT SCIENCES

Photosynthetica Pub Date : 2022-10-17 DOI:10.32615/ps.2022.044

R. Tomar, R. Atre, D. Sharma, P. Rai-Kalal, A. Jajoo

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引用次数: 2

摘要

缩写:C - control;Chl -叶绿素;f0 -最小荧光;F -最大荧光;fv / f0 -水裂解配合物效率;fv / fm - PSII光化学的最大量子产率HL—高光;LL -弱光;PAHs—多环芳烃;PYR -芘;SP—饱和脉冲;Y (II) - PSII的量子产率;Y (NO)——非调节能量耗散产率;Y (NPQ) -调节能量耗散量。致谢:RST感谢科学与工业研究委员会为CSIR-RA提供奖学金[09/301/ (0134)/2018-EMR-I]。公关感谢印度大学教育资助委员会(教资会)颁发教资会网络青年研究员奖学金[F.16(DEC.2016)/2017(NET)]。利益冲突:作者声明他们没有利益冲突。和仙人掌。在弱光条件下(LL[50-60µmol(光子)m -2 s -1])和强光条件下(HL[100-110µmol(光子)m -2 s -1])，研究芘(PYR)毒性对两种植物生长参数、生物分子含量、叶绿素含量和光合效率的影响。在PYR存在的情况下，在LL和HL强度下，尖尖葡萄都能很好地生长。另一方面，由于PYR的毒性作用，在HL条件下，C. vulgaris的生长和光合作用急剧下降。在LL和HL条件下，非光化学和光化学猝灭是导致尖穗葡萄在PYR毒性下存活的主要原因。因此，在不同的光照条件下，尖锐葡萄球菌似乎是更有希望降解芘的候选者。

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Light intensity affects tolerance of pyrene in Chlorella vulgaris and Scenedesmus acutus

Abbreviations : C – control; Chl – chlorophyll; F 0 – minimal fluorescence; F m – maximum fluorescence; F v /F 0 – efficiency of the water- splitting complex; F v /F m – maximal quantum yield of PSII photochemistry; HL – high light; LL – low light; PAHs – polycyclic aromatic hydrocarbons; PYR – pyrene; SP – saturation pulse; Y (II) – quantum yield of PSII; Y (NO) – yield of nonregulated energy dissipation; Y (NPQ) – yield of regulated energy dissipation. Acknowledgments : RST thanks the Council of Scientific and Industrial Research for the CSIR-RA fellowship [09/301/ (0134)/2018-EMR-I]. PR thanks University Grants Commission (UGC), India for awarding UGC–NET Junior Research Fellowship [F.16(DEC.2016)/2017(NET)]. Conflict of interest : The authors declare that they have no conflict of interest. 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.

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来源期刊

Photosynthetica 生物-植物科学

CiteScore

5.60

自引率

7.40%

发文量

审稿时长

3.8 months

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.