Seasonal profiles of leaf ascorbic acid content and redox state in ozone-sensitive wildflowers.

@article{Burkey2006SeasonalPO,
  title={Seasonal profiles of leaf ascorbic acid content and redox state in ozone-sensitive wildflowers.},
  author={K. Burkey and H. Neufeld and Lara Souza and A. Chappelka and A. Davison},
  journal={Environmental pollution},
  year={2006},
  volume={143 3},
  pages={
          427-34
        }
}
Cutleaf coneflower (Rudbeckia laciniata L.), crown-beard (Verbesina occidentalis Walt.), and tall milkweed (Asclepias exaltata L.) are wildflower species native to Great Smoky Mountains National Park (U.S.A.). Natural populations of each species were analyzed for leaf ascorbic acid (AA) and dehydroascorbic acid (DHA) to assess the role of ascorbate in protecting the plants from ozone stress. Tall milkweed contained greater quantities of AA (7-10 micromol g(-1) fresh weight) than crown-beard (2… Expand
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