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Root growth of parp mutant seedlings subjected to salt or osmotic stress is not altered compared to the wild type. Root growth (large panels) of Col-0 and parp mutants on control plates (circles), and plates supplemented with 100 mM NaCl (diamonds) or 100 mM mannitol (squares). Shoot fresh weight was determined at the end of the experiment (small panels). Data represent the sample means ± SE of 15 plants per line.
