Opis

• Tytuł:
  Dynamics of occurrence and metabolic activity of microorganisms involved in the removal of nutrients in urban sequential sedimentation-biofiltration systems
• Twórca:
  Font Nájera, Arnoldo
• Współtwórca:
  University of Lodz, Faculty of Biology and Environmental Protection, UNESCO Chair on Ecohydrology and Applied Ecology, Banacha 12/16, 90-237 Łódź, Poland;
  European Regional Centre for Ecohydrology of the Polish Academy of Sciences, Tylna 3, 90-364 Łódź, Poland
• Opis:
  Urban areas are important sources for river contamination with nitrogen and phosphorus compounds (nutrients). Their extensive amount in urban surface waters promote the proliferation of cyanobacterial harmful algal blooms (CyanoHABs) which could harm biodiversity and human health. Therefore, sequential sedimentation-biofiltration systems (SSBSs) were implemented to collect polluted water from urban rivers to reduce the nutrient load. Microbial communities play an important role in nutrient cycling in the environment, thus, the present study focused on the investigation of such communities in sediments from three SSBSs, two in Lodz city and one in Gniezno city (Poland). Two publications described how the differences in the system design, season, and physico-chemical parameters, influenced the functional metabolic activity of microbial communities (using community level physiological profile approach), and the abundance of nitrifying and denitrifying bacteria (using qPCR to estimate the gene abundance of amoA and nosZ, respectively). The results indicated that SSBS’s geochemical zones containing limestone presented the highest metabolic activity in summer, and the highest abundance of nitrifying bacteria in spring, while denitrifying zones containing brown coal were more abundant with denitrifying bacteria in summer. Moreover, 16S rRNA High throughput sequencing suggested that Commamonadaceae, Flavobacteriaceae, and Crenotrichaceae were the most representative families containing nitrogen-transforming bacteria, while the Rhodocyclaceae with polyphosphate accumulating bacteria. Finally, a third publication described the isolation and characterization of ten nitrogen-transforming bacterial strains from SSBSs sediments, from which two presented the most promising results in the removal of nitrogen compounds in controlled assays: Citrobacter fruendii Bzr02 and Pseudomonas mandelii Str21.;
  GuateFuturo Foundation, Guatemala, Guatemala city. The scholarship-loan program for young professionals for the specialization in master and doctoral programs abroad (https://guatefuturo.org/). Under the project code: PCB-2017-01. Faculty of Biology and Environmental Protection, University of Lodz. Specialized subsidy for activities related to the conduct of scientific research, development of work, and related tasks for the development of young scientists and participants of doctoral studies under the title of: Dynamika występowania bakterii zaangażowanych w przemiany biogenów w wybranych strefach miejskich systemów sedymentacyjno-biofiltracyjnych. Under the project code: B1711000001531.02. 2017. Faculty of Biology and Environmental Protection, University of Lodz. Specialized subsidy for activities related to the conduct of scientific research, development of work, and related tasks for the development of young scientists and participants of doctoral studies under the title of: Sezonowa i przestrzenna dynamika występowania bakterii zaangażowanych w przemiany biogenów w sekwencyjnych systemach sedymentacyjno-biofiltracyjnych. Under the code: B1811000001811.02. 2018. Faculty of Biology and Environmental Protection, University of Lodz. Specialized subsidy for activities related to the conduct of scientific research, development of work, and related tasks for the development of young scientists and participants of doctoral studies under the title of: Dynamika występowania oraz aktywność metaboliczna mikroorganizmów zaangażowanych w usuwanie biogenów w miejskich sekwencyjnych systemach sedymentacyjno-biofiltracyjnych. Under the code: B1911000002130.03. 2019. Cooperation with the European Regional Centre for Ecohydrology of the Polish Academy of Sciences (ERCE PAS)
• Dostępność obiektu:
  Dostęp otwarty
• Prawa:
  Arnoldo Font Nájera
• Data:
  2021.09.10;
  2021;
  2022.01.18
• Typ:
  PhD/Doctoral Dissertation
• Język:
  angielski
• Format:
  application/pdf
• Temat i słowa kluczowe:
  sequential sedimentation-biofiltration systems;
  nutrient transforming bacteria;
  microbial metabolic activity;
  nitrification;
  denitrification;
  nitrogen assimilation
• Identyfikator: http://hdl.handle.net/11089/39018
• Dostawca danych:
  Repozytorium Uniwersytetu Łódzkiego
• Czy mogę z tego obiektu skorzystać?:
  poproś o pozwolenie
• Rodzaj zawartości:
  teksty