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Zinc chloride

Company: Sinopharm Chemical Reagent
Catalog#: 10023828
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Determination of the Effects of Local and Systemic Iron Excess on Lateral Root Initiation in Arabidopsis thaliana
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2017-07-05
[Abstract]  Root system architecture depends on nutrient availability. A symptom of iron (Fe) toxicity in plants is stunted root growth, yet little is known about the effects of excess Fe on lateral root (LR) development. To better understand how nutrient signals are integrated into root developmental programs, we investigated the morphological response of Arabidopsis thaliana root systems to Fe by testing homogeneous supply and localized Fe supply treatment. [摘要]  根系统结构取决于营养供应。 植物中铁(Fe)毒性的症状是根系生长发育迟缓,但是对于过量的Fe对侧根(LR)发育的影响知之甚少。 为了更好地了解营养信号如何整合到根发育方案中,我们通过测试均匀供应和局部Fe供应处理,研究了拟南芥根系对Fe的形态反应。
【背景】营养素的局部供应调节拟南芥中的侧根伸长和/或侧根密度。侧根形成受不同发育阶段(例如,起始与延长)和营养特异性方式的营养素的影响(Li et al。,2011; Giehl et al。,2012)。作为植物综合征的铁毒性通常与土壤中过量的铁(Fe(OH)2 +离子)相关联(Vigani,2012)。铁毒性症状因栽培品种而异,其特征在于下部叶子呈红褐色,紫色,黄色或橙色变色,发育不良。通过低pH和缺氧条件,Fe 2 + 离子的存在增加,并且在垂直较低的层中存在增加的存在(Becker和Asch,2005; Li et al。 em>,2016)。我们描述了在拟南芥中验证的体外生长的拟南芥中用于局部铁供应的详细管道(eta。 ,2015a; 2015b和2016)。

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