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Coexistence of Legionella pneumophila Bacteria and Free-Living Amoebae in Lakes Serving as a Cooling System of a Power Plant.

Zbikowska E, Kletkiewicz H, Walczak M, Burkowska A - Water Air Soil Pollut (2014)

Bottom Line: The study was aimed at determining whether potentially pathogenic free-living amoebae (FLA) and Legionella pneumophila can be found in lakes serving as a natural cooling system of a power plant.The bacteria were identified in the biofilm throughout the entire research period and in the subsurface water layer in July and August.Hartmanella sp. and/or Naegleria fowleri were identified in the biofilm throughout the entire research period.

View Article: PubMed Central - PubMed

Affiliation: Department of Invertebrate Zoology, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland.

ABSTRACT
The study was aimed at determining whether potentially pathogenic free-living amoebae (FLA) and Legionella pneumophila can be found in lakes serving as a natural cooling system of a power plant. Water samples were collected from five lakes forming the cooling system of the power plants Pątnów and Konin (Poland). The numbers of investigated organisms were determined with the use of a very sensitive molecular method-fluorescence in situ hybridization (FISH). The result of the present study shows that thermally altered aquatic environments provide perfect conditions for the growth of L. pneumophila and amoebae. The bacteria were identified in the biofilm throughout the entire research period and in the subsurface water layer in July and August. Hartmanella sp. and/or Naegleria fowleri were identified in the biofilm throughout the entire research period.

No MeSH data available.


Related in: MedlinePlus

The numbers of Legionella sp. and L. pneumophila in lakes serving as a cooling system in a power plant
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Related In: Results  -  Collection


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Fig2: The numbers of Legionella sp. and L. pneumophila in lakes serving as a cooling system in a power plant

Mentions: Bacteria of the Legionella genus were identified in the collected water samples throughout the entire research period (Fig. 2) The highest numbers of Legionella sp. in the biofilm were noted in May and October, 20.43 × 103 and 13.62 × 103 cells cm−3, respectively. Substantially lower numbers of Legionella sp. were noted in July (4.54 × 103 cells cm−3) and August (3.02 × 103 cells cm−3). In the subsurface water layer, the highest number of Legionella sp. was noted in May (4.54 × 103 cells cm−3). In July and August, the number decreased by half to further decrease in October when it was 1.51 × 103 cells cm−3.Fig. 2


Coexistence of Legionella pneumophila Bacteria and Free-Living Amoebae in Lakes Serving as a Cooling System of a Power Plant.

Zbikowska E, Kletkiewicz H, Walczak M, Burkowska A - Water Air Soil Pollut (2014)

The numbers of Legionella sp. and L. pneumophila in lakes serving as a cooling system in a power plant
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4127003&req=5

Fig2: The numbers of Legionella sp. and L. pneumophila in lakes serving as a cooling system in a power plant
Mentions: Bacteria of the Legionella genus were identified in the collected water samples throughout the entire research period (Fig. 2) The highest numbers of Legionella sp. in the biofilm were noted in May and October, 20.43 × 103 and 13.62 × 103 cells cm−3, respectively. Substantially lower numbers of Legionella sp. were noted in July (4.54 × 103 cells cm−3) and August (3.02 × 103 cells cm−3). In the subsurface water layer, the highest number of Legionella sp. was noted in May (4.54 × 103 cells cm−3). In July and August, the number decreased by half to further decrease in October when it was 1.51 × 103 cells cm−3.Fig. 2

Bottom Line: The study was aimed at determining whether potentially pathogenic free-living amoebae (FLA) and Legionella pneumophila can be found in lakes serving as a natural cooling system of a power plant.The bacteria were identified in the biofilm throughout the entire research period and in the subsurface water layer in July and August.Hartmanella sp. and/or Naegleria fowleri were identified in the biofilm throughout the entire research period.

View Article: PubMed Central - PubMed

Affiliation: Department of Invertebrate Zoology, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland.

ABSTRACT
The study was aimed at determining whether potentially pathogenic free-living amoebae (FLA) and Legionella pneumophila can be found in lakes serving as a natural cooling system of a power plant. Water samples were collected from five lakes forming the cooling system of the power plants Pątnów and Konin (Poland). The numbers of investigated organisms were determined with the use of a very sensitive molecular method-fluorescence in situ hybridization (FISH). The result of the present study shows that thermally altered aquatic environments provide perfect conditions for the growth of L. pneumophila and amoebae. The bacteria were identified in the biofilm throughout the entire research period and in the subsurface water layer in July and August. Hartmanella sp. and/or Naegleria fowleri were identified in the biofilm throughout the entire research period.

No MeSH data available.


Related in: MedlinePlus