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| Content Provider | Springer Nature Link |
|---|---|
| Author | Lew, Sylwia Lew, Marcin Szarek, Józef Babińska, Izabella |
| Copyright Year | 2010 |
| Abstract | The objective of the study was to determine the effects of ca. 35 years of pesticide contamination (pesticide dump—PD) of Lake Szeląg Wielki (located in the north-eastern Poland) on changes in the microbial communities of aquatic ecosystems. In the years 2008–2009, analyses were carried out for seasonal changes in the quantity and composition of bacterioplankton in the lake examined, which is of high significance to the tourism and fishing industries and is located in the vicinity of an area subjected to reclamation after a pesticide dump.Bacterioplankton composition was assayed by fluorescence in situ hybridisation technique for the contribution of major groups of the Bacteria domain: ά-, β- and γ-Proteobacteria, Cytophaga-Flavobacterium and Actinobacteria as well as bacteria capable of degrading pesticides in an aquatic environment—Pseudomonas spp. Seasonal patterns of the total number of bacteria were determined by direct counting of 4′,6-diamidino-2-phenylindole (DAPI)-stained cells.The percentage of the detected Eubacteria (EUB 338 probe) relative to all the DAPI-stained bacteria in Lake Szeląg Wielki ranged from 46% to 63%. Bacteria capable of degrading pesticides in an aquatic environment—Pseudomonas spp.—were identified with a highly specific probe PEA 998. The highest mean values of this parameter reached 5.1%. In the spring, Pseudomonas spp. bacteria accounted for up to 80% of all Gamma-Proteobacteria microbes.The study showed that the qualitative and quantitative changes in the bacterioplankton of the lake can be characterised by tendencies which are typical of a eutrophic water reservoir. However, a higher contribution of microorganisms capable of degrading sparingly degradable, toxic compounds and pesticides was determined in bacterioplankton from the PD-contaminated lake, as compared to microbial communities of a lake not contaminated with pesticides. |
| Starting Page | 376 |
| Ending Page | 385 |
| Page Count | 10 |
| File Format | |
| ISSN | 09441344 |
| Journal | Environmental Science and Pollution Research |
| Volume Number | 18 |
| Issue Number | 3 |
| e-ISSN | 16147499 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2010-08-09 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Bacterioplankton Pesticide Water pollution Microbiological community composition FISH Industrial Pollution Prevention Environment Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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