التفاصيل البيبلوغرافية
العنوان:
Metabolic adaptation of a Chlamydomonas acidophila strain isolated from acid mine drainage ponds with low eukaryotic diversity
المؤلفون:
Andrew P. Dean , Thomas King , Antoni Hartley , Owen A. McIntosh , Keith N. White , Ellen Yardley , Nicolas H. Holmberg , Alyssa Smith , Helen K. Feord , Jon K. Pittman
المصدر:
Dean, A, Hartley, A, Mcintosh, O, Smith, A, Feord, H, Holmberg, N H, King, T, Yardley, E, White, K & Pittman, J 2019, ' Metabolic adaptation of a Chlamydomonas acidophila strain isolated from acid mine drainage ponds with low eukaryotic diversity ', Science of the Total Environment, vol. 647, pp. 75-87 . https://doi.org/10.1016/j.scitotenv.2018.07.445
سنة النشر:
2018
مصطلحات موضوعية:
Environmental Engineering , 010504 meteorology & atmospheric sciences , chemistry.chemical_element , 010501 environmental sciences , 01 natural sciences , Mining , Bioremediation , Aquatic plant , Metals, Heavy , Environmental Chemistry , Extremophile , Ponds , Waste Management and Disposal , 0105 earth and related environmental sciences , Cadmium , Strain (chemistry) , biology , Chlamydomonas , Eukaryota , biology.organism_classification , Acid mine drainage , Pollution , Adaptation, Physiological , chemistry , Bioaccumulation , Environmental chemistry , Eukaryote , Water Pollutants, Chemical , Environmental Monitoring
الوصف:
© 2018 Elsevier B.V. The diversity and biological characteristics of eukaryotic communities within acid mine drainage (AMD) sites is less well studied than for prokaryotic communities. Furthermore, for many eukaryotic extremophiles the potential mechanisms of adaptation are unclear. This study describes an evaluation of eight highly acidic (pH 1.6–3.1) and one moderately acidic (pH 5.6) metal-rich acid mine drainage ponds at a disused copper mine. The severity of AMD pollution on eukaryote biodiversity was examined, and while the most species-rich site was less acidic, biodiversity did not only correlate with pH but also with the concentration of dissolved and particulate metals. Acid-tolerant microalgae were present in all ponds, including the species Chlamydomonas acidophila, abundance of which was high in one very metal-rich and highly acidic (pH 1.6) pond, which had a particularly high PO4-P concentration. The C. acidophila strain named PM01 had a broad-range pH tolerance and tolerance to high concentrations of Cd, Cu and Zn, with bioaccumulation of these metals within the cell. Comparison of metal tolerance between the isolated strain and other C. acidophila strains previously isolated from different acidic environments found that the new strain exhibited much higher Cu tolerance, suggesting adaptation by C. acidophila PM01 to excess Cu. An analysis of the metabolic profile of the strains in response to increasing concentrations of Cu suggests that this tolerance by PM01 is in part due to metabolic adaptation and changes in protein content and secondary structure.
وصف الملف:
text; application/pdf
تدمد:
1879-1026
URL الوصول:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84ce885fb403b1202a75d36635d6a53b https://pubmed.ncbi.nlm.nih.gov/30077857
حقوق:
OPEN
رقم الأكسشن:
edsair.doi.dedup.....84ce885fb403b1202a75d36635d6a53b
قاعدة البيانات:
OpenAIRE
