Your browser does not allow JavaScript!
JavaScript is necessary for the proper functioning of this website. Please enable JavaScript or use a modern browser.
Open Science Slovenia
Open Science
DiKUL
slv
|
eng
Search
Browse
New in RUL
About RUL
In numbers
Help
Sign in
Membrane changes associated with exposure of Pseudomonas putida to selected environmental pollutants and their possible roles in toxicity
ID
Vodovnik, Maša
(
Author
),
ID
Bistan, Mirjana
(
Author
),
ID
Zorec, Maša
(
Author
),
ID
Marinšek-Logar, Romana
(
Author
)
URL - Presentation file, Visit
http://acta.chem-soc.si/59/59-1-83.pdf
Image galllery
Abstract
A bacterial model system (Pseudomonas putida DSM 50026) was used in this research to assess potential effect of five selected chemically diverse environmental pollutants on cell membranes. Long chain fatty acid profiles of cultures exposed to environmentally relevant concentrations of atrazine (ATR), metolachlor (MET), pentachlorobiphenyl (PCB), hexachlorobenzene (HCB) and fluoranthene (FL), were analyzed and compared to non0exposed cultures. To assess sensitivity of membrane-based response, the impact of each toxicant on culture growth was also followed spectrophotometrically. Results revealed changes in fatty acid profiles when cells were exposed to PCB, HCB and FL in concentrations below the inhibitory levels. Moreover, the observed membrane responses were similar to the ones previously associated with adaption to some membrane-active compounds. On the other hand, exposure of cells to any of the two herbicides, ART or MET, did not induce any significant changes in fatty acid profiles. However, when combined with a commonly used fertilizer compound, NH[down]4NO[down]3, growth impairment was observed. Synergisitc effect of the two herbicides with NH[down]4NO[down]3, might be a consequence of changes in fatty acid profile increasing membrane fluidity, likely induced by NH[down]4+ ions.
Language:
English
Keywords:
mikrobiologija
,
toksikologija
,
bakterije
,
Pseudomonas putida
,
celične membrane
,
toksične snovi
Work type:
Not categorized
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
Year:
2012
Number of pages:
Str. 83-88
Numbering:
Vol. 59, no. 1
PID:
20.500.12556/RUL-36986
UDC:
579:632.95.024
ISSN on article:
1318-0207
COBISS.SI-ID:
3024008
Publication date in RUL:
10.07.2015
Views:
1417
Downloads:
260
Metadata:
Cite this work
Plain text
BibTeX
EndNote XML
EndNote/Refer
RIS
ABNT
ACM Ref
AMA
APA
Chicago 17th Author-Date
Harvard
IEEE
ISO 690
MLA
Vancouver
:
Copy citation
Share:
Record is a part of a journal
Title:
Acta chimica slovenica
Shortened title:
Acta chim. slov.
Publisher:
Slovensko kemijsko društvo, =Slovenian Chemical Society
ISSN:
1318-0207
COBISS.SI-ID:
14086149
Similar documents
Similar works from RUL:
Similar works from other Slovenian collections:
Back