Fig. 6From: Overexpression of the Tibetan Plateau annual wild barley (Hordeum spontaneum) HsCIPKs enhances rice tolerance to heavy metal toxicities and other abiotic stressesEffects of salt, drought, ABA, and Al treatments on root growth in rice seedlings overexpressing HsCIPKs. a-d Root relative elongation rates (%; RER) of four-day-old rice seedlings overexpressing HsCIPKs treated for 24 h with 50 mM NaCl (a), 10% PEG6000 (b), 1 μM ABA (c), and 50 μM AlCl3 (d), respectively. Values shown are means ± SD. Single and double asterisks indicate P < 0.05 and 0.01, respectively (t test; compared to the wild-type control NT seedlings). NT, nontransgenic regeneration linesBack to article page