Adaptation to coastal soils through pleiotropic boosting of ion and stress hormone concentrations in wild Arabidopsis thaliana.
Adaptation to coastal soils through pleiotropic boosting of ion and stress hormone concentrations in wild Arabidopsis thaliana.
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DOI：
10.1111/nph.17569
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发表时间：
2021-10
期刊：
影响因子：
--
通讯作者：
Salt DE
中科院分区：
文献类型：
--
作者：
Busoms S;Terés J;Yant L;Poschenrieder C;Salt DE
沿海地区的地方适应主要是由对盐度胁迫的耐受性驱动的。为了在高盐度下生存，植物进化出了专门耐受钠的机制。然而，在这些条件下介导适应性变化的途径远远超出了Na+。在这里，我们进行了高分辨率的遗传，ionomic，和功能的自然变化钼转运蛋白1（MOT1）与沿海拟南芥加入。我们量化的健身效益的一个特定的删除窝藏等位基因（MOT1DEL）存在于沿海栖息地，与较低的转录表达和钼积累。叶片离子组的分析表明，MOT1DEL植物积累更多的铜和更少的Na+比植物与非沿海MOT1等位基因，揭示了一个复杂的相互依存关系，这三个元素的稳态。我们的研究结果表明，在盐度下，减少MOT1功能限制叶片Na+积累通过阿坝信号。增强阿坝生物合成需要Cu。在铜缺乏的沿海土壤中，通过MOT1DEL增加SPL7和铜转运蛋白COPT 6的表达来满足这种需求。MOT1DEL是能够提供一个多效性的一套表型，提高耐盐性在沿海土壤中缺乏铜。这是通过诱导阿坝的生物合成和促进减少吸收或更好地划分Na+，导致沿海适应。
Local adaptation in coastal areas is driven chiefly by tolerance to salinity stress. To survive high salinity, plants have evolved mechanisms to specifically tolerate sodium. However, the pathways that mediate adaptive changes in these conditions reach well beyond Na+. Here we perform a high-resolution genetic, ionomic, and functional study of the natural variation in Molybdenum transporter 1 (MOT1) associated with coastal Arabidopsis thaliana accessions. We quantify the fitness benefits of a specific deletion-harbouring allele (MOT1DEL) present in coastal habitats that is associated with lower transcript expression and Mo accumulation. Analysis of the leaf ionome revealed that MOT1DEL plants accumulate more Cu and less Na+ than plants with the non-coastal MOT1 allele, revealing a complex interdependence in homeostasis of these three elements. Our results indicate that under salinity, reduced MOT1 function limits leaf Na+ accumulation through ABA signalling. Enhanced ABA biosynthesis requires Cu. This demand is met in Cu deficient coastal soils through MOT1DEL increasing the expression of SPL7 and the copper transport protein COPT6. MOT1DEL is able to deliver a pleiotropic suite of phenotypes that enhance salinity tolerance in coastal soils deficient in Cu. This is achieved by inducing ABA biosynthesis and promoting reduced uptake or better compartmentalization of Na+, leading to coastal adaptation.
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影响因子：
56.9
作者：
Alonso, JM;Stepanova, AN;Ecker, JR
通讯作者：
Ecker, JR
DOI：
10.1080/00103624.2013.874022
发表时间：
2014-03-09
影响因子：
1.8
作者：
Eskandari, Samane;Mozaffari, Vahid
通讯作者：
Mozaffari, Vahid
影响因子：
6.9
作者：
Mendel, Ralf R.
通讯作者：
Mendel, Ralf R.
影响因子：
7.1
作者：
Panagos, Panos;Van Liedekerke, Marc;Montanarella, Luca
通讯作者：
Montanarella, Luca
影响因子：
5.6
作者：
Peñarrubia L;Romero P;Carrió-Seguí A;Andrés-Bordería A;Moreno J;Sanz A
通讯作者：
Sanz A