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Root growth of parp1-1 parp2-1 parp3-1 mutant plants exposed to salt or osmotic stress is not altered compared to the wild type. Root growth (large panel) of Col-0 and parp1-1 parp2-1 parp3-1 mutants on control plates and on plates supplemented with 100 mM NaCl (diamonds) or 100 mM mannitol (squares). Shoot fresh weight was determined at the end of the experiment (small panel). Data represent the sample means ± SE of 15 plants per line.
