2010
DOI: 10.1016/j.jplph.2009.06.018
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Effect of cadmium on diaphorase activity and nitric oxide production in barley root tips

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Cited by 69 publications
(35 citation statements)
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“…The function of NO may be different in various cell types and is probably dependent also on the severity and duration of stress conditions. It has previously been shown that a marked Cd-induced NO generation in pericycle, parenchymatic stellar cells and companion cells of protophloem of barley roots is associated with accelerated differentiation of root tips, which causes shortening of the root elongation zone and subsequent reduction in root growth during prolonged Cd-exposure (Valentovičová et al 2010). In contrast to these results, short-term exposure of roots to Cd-stimulated NO generation in the transition and elongation zone of root tip mitigating the Cd-induced root growth inhibition.…”
Section: Discussionmentioning
confidence: 99%
“…The function of NO may be different in various cell types and is probably dependent also on the severity and duration of stress conditions. It has previously been shown that a marked Cd-induced NO generation in pericycle, parenchymatic stellar cells and companion cells of protophloem of barley roots is associated with accelerated differentiation of root tips, which causes shortening of the root elongation zone and subsequent reduction in root growth during prolonged Cd-exposure (Valentovičová et al 2010). In contrast to these results, short-term exposure of roots to Cd-stimulated NO generation in the transition and elongation zone of root tip mitigating the Cd-induced root growth inhibition.…”
Section: Discussionmentioning
confidence: 99%
“…However, the enhanced stress signal might be a result of higher levels of NO acting as a negative regulator of the resistance response in plants against metals. Recent reports revealed that endogenous NO generation contributes to Cd-induced root growth inhibition in plants (Valentovicova et al 2010;Ye et al 2013). Plant responses to Cu stress also involve shifts in NO levels, but the role of endogenous NO production remains incompletely understood.…”
Section: Discussionmentioning
confidence: 99%
“…Nitric oxide (NO) might be one of the most promising candidates to mediate this process, since several studies have shown that Cd treatments can increase NO production in roots (Arasimowicz-Jelonek et al 2011;Besson-Bard et al 2009;De Michele et al 2009;Valentovičová et al 2011). Our study also confirmed such an accumulation of NO in Cd-treated roots (Fig.…”
Section: Discussionmentioning
confidence: 99%