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Neustonic versus epiphytic bacteria of eutrophic lake and their biodegradation ability on deltamethrin.

Kalwasińska A, Kęsy J, Wilk I, Donderski W - Biodegradation (2010)

Bottom Line: This study evaluated biodegradation of the insecticide deltamethrin (1 μg l(-1)) by pure cultures of neustonic (n = 25) and epiphytic (n = 25) bacteria and by mixed cultures (n = 1), which consisted of a mixture of 25 bacterial strains isolated from the surface microlayer (SM ≈ 250 μm) and epidermis of the Common Reed (Phragmites australis, (Cav.) Trin. ex Steud.) growing in the littoral zone of eutrophic lake Chełmżyńskie.Results indicate that neustonic and epiphytic bacteria are characterized by a similar average capacity to degrade deltamethrin.After a 15-day incubation, bacteria isolated from the surface microlayer reduced the initial concentration of deltamethrin by 60%, while the average effectiveness of the bacteria found on the Common Reed equaled 47%.

View Article: PubMed Central - PubMed

Affiliation: Department of Water Microbiology and Biotechnology, Nicolaus Copernicus University, Gagarina 9, 87-100, Toruń, Poland. kala@umk.pl

ABSTRACT
This study evaluated biodegradation of the insecticide deltamethrin (1 μg l(-1)) by pure cultures of neustonic (n = 25) and epiphytic (n = 25) bacteria and by mixed cultures (n = 1), which consisted of a mixture of 25 bacterial strains isolated from the surface microlayer (SM ≈ 250 μm) and epidermis of the Common Reed (Phragmites australis, (Cav.) Trin. ex Steud.) growing in the littoral zone of eutrophic lake Chełmżyńskie. Results indicate that neustonic and epiphytic bacteria are characterized by a similar average capacity to degrade deltamethrin. After a 15-day incubation, bacteria isolated from the surface microlayer reduced the initial concentration of deltamethrin by 60%, while the average effectiveness of the bacteria found on the Common Reed equaled 47%.

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Outlook of lake Chełmżyńskie
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Related In: Results  -  Collection


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Fig2: Outlook of lake Chełmżyńskie

Mentions: The analyzed strains of bacteria were isolated from the samples of epidermis of the Common Reed (Phragmites australis, (Cav.) Trin. ex Steud.) and surface microlayer (≈250 μm), which were collected in the extra-urban section of lake Chełmżyńskie surrounded by farmland (Fig. 2).Fig. 2


Neustonic versus epiphytic bacteria of eutrophic lake and their biodegradation ability on deltamethrin.

Kalwasińska A, Kęsy J, Wilk I, Donderski W - Biodegradation (2010)

Outlook of lake Chełmżyńskie
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3104139&req=5

Fig2: Outlook of lake Chełmżyńskie
Mentions: The analyzed strains of bacteria were isolated from the samples of epidermis of the Common Reed (Phragmites australis, (Cav.) Trin. ex Steud.) and surface microlayer (≈250 μm), which were collected in the extra-urban section of lake Chełmżyńskie surrounded by farmland (Fig. 2).Fig. 2

Bottom Line: This study evaluated biodegradation of the insecticide deltamethrin (1 μg l(-1)) by pure cultures of neustonic (n = 25) and epiphytic (n = 25) bacteria and by mixed cultures (n = 1), which consisted of a mixture of 25 bacterial strains isolated from the surface microlayer (SM ≈ 250 μm) and epidermis of the Common Reed (Phragmites australis, (Cav.) Trin. ex Steud.) growing in the littoral zone of eutrophic lake Chełmżyńskie.Results indicate that neustonic and epiphytic bacteria are characterized by a similar average capacity to degrade deltamethrin.After a 15-day incubation, bacteria isolated from the surface microlayer reduced the initial concentration of deltamethrin by 60%, while the average effectiveness of the bacteria found on the Common Reed equaled 47%.

View Article: PubMed Central - PubMed

Affiliation: Department of Water Microbiology and Biotechnology, Nicolaus Copernicus University, Gagarina 9, 87-100, Toruń, Poland. kala@umk.pl

ABSTRACT
This study evaluated biodegradation of the insecticide deltamethrin (1 μg l(-1)) by pure cultures of neustonic (n = 25) and epiphytic (n = 25) bacteria and by mixed cultures (n = 1), which consisted of a mixture of 25 bacterial strains isolated from the surface microlayer (SM ≈ 250 μm) and epidermis of the Common Reed (Phragmites australis, (Cav.) Trin. ex Steud.) growing in the littoral zone of eutrophic lake Chełmżyńskie. Results indicate that neustonic and epiphytic bacteria are characterized by a similar average capacity to degrade deltamethrin. After a 15-day incubation, bacteria isolated from the surface microlayer reduced the initial concentration of deltamethrin by 60%, while the average effectiveness of the bacteria found on the Common Reed equaled 47%.

Show MeSH