VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Influence of herbicide, 2,4-dichlorophenoxy acetic acid, on haemocyte DNA of in vivo treated mussel
    Mičić, Milena ; Bihari, Nevenka ; Mlinarič-Raščan, Irena
    The influence of the herbicide 2,4-dichlorophenoxy acetic acid (2,4-D) on haemocyte DNA of in vivo treated mussels Mytilus galloprovincialis has been investigated by flow cytometry and ... epifluorescence microscopy. Haemocyte proliferation and atypical flow cytometric DNA histograms were observed in mussels treated with 20 and 100 small mu, Greekgžg of 2,4-D. The stimulation of proliferation by 2,4-D was also obvious by DNA labelling with BrdU followedby FITC conjugated anti-BrdU MoAb visualised by epifluorescence microscopy. An apoptotic sub-G1 peak resulted in mussels that were exposed to higher doses of herbicide at 100 and 500 small mu, Greekgžg as well as subpopulation could be detected by flow cytometric analysis. In these experiments morphological changes characteristic for apoptotic cells were looked for by fluorescence microscopy. A low percentage of cells in S as well as in G2M phase indicating G1 arrest were detected in haemocytes from these mussels that had survived 4 days of 20 small mu, Greekgžg 2,4-D exposure. In addition, sister-chromatid exchanges (SCE) could be seen with the immunolabelling BrdU method. Thus, in vivo treatment and the subsequent uptakeof 2,4-D causes serious genetic consequences and raises concerns regarding the potential overall fitness and health effects in mussel populations.
    Vir: Journal of experimental marine biology and ecology. - ISSN 0022-0981 (Vol. 311, no. 1, 2004, str. 157-169)
    Vrsta gradiva - članek, sestavni del
    Leto - 2004
    Jezik - angleški
    COBISS.SI-ID - 1551473

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