Novel mechanisms for organic acid-mediated aluminium tolerance in roots and leaves of two contrasting soybean genotypes.

Novel mechanisms for organic acid-mediated aluminium tolerance in roots and leaves of two contrasting soybean genotypes.
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两种对比大豆基因型的根和叶中有机酸介导的铝耐受性的新机制

DOI:
10.1093/aobpla/plx064
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发表时间:
2017-11
期刊:
影响因子:
2.9
通讯作者:
Yang YH
Yang YH
中科院分区:
生物学3区
文献类型:
--
作者:
Huang SC;Chu SJ;Guo YM;Ji YJ;Hu DQ;Cheng J;Lu GH;Yang RW;Tang CY;Qi JL;Yang YH

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铝毒是酸性土壤上限制作物产量的重要因素之一。然而,赋予铝耐受性的机制在很大程度上仍然未知。基于在0 µM和50 µM Al 3+处理下对两种对比大豆基因型(BX 10(耐铝)和BD 2(铝敏感))的根和叶的全局转录组分析,我们的研究结果表明,BX 10可以通过分泌额外的柠檬酸盐来抵抗铝。从根到根际螯合铝,并避免JA介导的防御反应,从而实现资源分配以维持叶片生长。
Aluminium (Al) toxicity is one of the most important limiting factors for crop yield in acidic soils. However, the mechanisms that confer Al tolerance remain largely unknown. Based on the global transcriptome analysis of the roots and leaves of two contrasting soybean genotypes, BX10 (Al-tolerant) and BD2 (Al-sensitive) under 0 µM and 50 µM Al3+ treatments, our findings suggest that BX10 can resist Al by secreting additional citrate into the rhizosphere from the roots to chelate Al and by avoiding a JA-mediated defense response that allows resource allocation to maintain leaf growth.
对大豆中铝毒性反应的 MATE 转运蛋白和 MATE 基因亚组的​​表达模式进行全基因组分析
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