stress were investigated. Oxyfluorfen and UV-B decreased growth, photosynthesis,
nutrient uptake, nitrate reductase, acid and alkaline phosphatase activities, which accompanied with
the increase in the level of oxidative stress. However, growth was more affected inN. muscorumthan
P. foveolarum. Antioxidants exhibited differential responses against oxyfluorfen and UV-B stress.
Ascorbate and proline levels were higher inP. foveolarum. A protein of 66 kDa was expressed in
N. muscorum, however, it was absent in P. foveolarumthan those ofN. muscorum. Besides this, a protein
of 29 kDa appeared inP. foveolarumunder all the treatments, but it was present only in control cells of
N. muscorumcells. Overall results indicated resistant nature ofP. foveolarumagainst oxyfluorfen and
UV-B stress in comparison toN. muscorum.
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