Growth response of spring barley to short- or long-period exposures to fluoranthene
1997
Kummerova, M. | Slovak, L. | Holoubek, I. (Masarykova Univ., Brno (Czech Republic). Prirodovedecka Fakulta)
The effect of short-time (48 hrs) and a long-time (28 days) exposure of barley seedlings in a nutrient solution with an increasing concentration (10, 100 and 1000 microg 1-1) of fluoranthene (FLT) was examined with a special regard to their growth and the content of assimilatory pigments at the beginning of ontogenesis. The FLT amount and its translocation in the plants were investigated too. Higher fluoranthene concentrations (100 and 1000 microg 1-1) caused a significant inhibition of biomass production and of the content of photosynthetic pigments (chlorofyll a, b, carotenoids) in spring barley plants both in long-time and short-time exposures. The leaf areaa size and the content of photosynthetic pigments are included among the primary symptoms of the possible effect of PAHs on plants.
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