Aluminum uptake and disease resistance in Nicotiana rustica leaves.
Aluminum uptake and disease resistance in Nicotiana rustica leaves.
复制标题
黄花烟草叶片的铝吸收和抗病性。
DOI：
10.1016/j.ecoenv.2009.12.028
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发表时间：
2010
影响因子：
6.8
通讯作者：
Hong
中科院分区：
文献类型：
--
作者：
Bo Zhang;Xiao;Xin Li;Yong;Hong
研究了氢氧化铝和氯化铝在烟草青枯病发生发展过程中的作用。甘肃黄花。分析了铝胁迫下叶片过氧化氢含量的变化，以及非酶和酶类抗氧化剂的变化。在病原菌攻击前用氢氧化铝进行预处理，可以减少青枯病的侵染，减轻叶片的伤害程度。与氯化铝处理相比，预处理也降低了铝的吸收率。氢氧化铝对过氧化氢产生量有显著促进作用。NADPH氧化酶和超氧化物歧化酶活性升高与有限感染相关。氢氧化铝处理使AsA/DHA和GSH/GSSG的叶片氧化还原动态平衡向氧化方向移动，产生的氧化剂水平高于接种细菌前的三氯化铝。这些结果支持氢氧化铝通过非酶和酶调节诱导过氧化氢积累，最终导致烟草对枯萎病的抗性的观点。
The comparative effectiveness of aluminum hydroxide and aluminum chloride has been studied in the development of bacterial wilt infection on leaves of Nicotiana rustica cv. Gansu yellow flower. We have analyzed the changes of foliar H2O2content, as well as of non-enzymatic and enzymatic antioxidants under aluminum stress. Pretreatment with aluminum hydroxide before pathogen challenge reduced the development of Ralstonia solanacearum infection and decreased the extent of leaf injury. The pretreatment also reduced the Al uptake in comparison to pretreatment with aluminum chloride. H2O2generation was significantly enhanced by pretreatment with aluminum hydroxide. Increased NADPH oxidase and superoxide dismutase activities were correlated with limited infection. Aluminum hydroxide pretreatment shifted the leaf redox homeostasis of AsA/DHA and GSH/GSSG toward oxidation, yielding higher oxidant levels than aluminum chloride before bacterial inoculation. The results support the idea that aluminum hydroxide induced H2O2accumulation through non-enzymatic and enzymatic regulation, ultimately resulting in resistance to tobacco wilt disease.
影响因子：
3.9
作者：
Devi, SR;Yamamoto, Y;Matsumoto, H
通讯作者：
Matsumoto, H