Arabidopsis thaliana PRL1 is involved in low calcium tolerance.
Arabidopsis thaliana PRL1 is involved in low calcium tolerance.
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拟南芥 PRL1 参与低钙耐受性。
DOI：
10.1080/00380768.2015.1086277
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
T.
中科院分区：
文献类型：
--
作者：
Shikanai;Y.;Yamagami;M.;Shigenobu;S.;Yamaguchi;K.;Kamiya;T.;Fujiwara;T.
植物缺钙症状在农业中经常发生；然而，对低钙条件下的适应机制知之甚少。为了了解其机制，我们筛选了拟南芥（arabidopsis thaliana， L.）Heynh突变体对低钙敏感。在这里，我们描述了从筛选中分离出来的突变体lcs1-1。与野生型植株相比，在低钙条件下，突变体的相对茎长降低。遗传图谱和基因组重测序显示，lcs1-1在负责表型的染色体区域有一个非同义突变。该突变位于多效性调控位点1（PRL1）。lcs1-1与prl1的T-DNA插入等位基因之间的等位基因测试表明，lcs1-1的致病基因是prl1。据报道，prl1参与糖代谢；然而，PRL1参与低钙耐受性的研究尚未见报道。我们的研究结果提出了一种将糖代谢与植物低钙耐受性机制联系起来的新见解。
Calcium (Ca) deficiency symptoms in plants often occur in agriculture; however, little is known about the mechanisms for adaptation to low-Ca conditions. To understand the mechanisms, we screened forArabidopsis thaliana(L.) Heynh mutants sensitive to low Ca. Here, we describe one of the mutants,lcs1-1, isolated from the screen. The relative shoot growth of the mutant was reduced under the low-Ca conditions compared with the wild-type plants. Genetic mapping and genome resequencing revealed thatlcs1-1has one nonsynonymous mutation in the region of the chromosome responsible for the phenotype. The mutation is inPleiotropic Regulatory Locus 1(PRL1). An allelism test betweenlcs1-1and a T-DNA inserted allele ofprl1demonstrates that the causal gene oflcs1-1isPRL1. It has been reported thatPRL1is involved in sugar metabolism; however, the involvement of PRL1 in low-Ca tolerance has not been reported. Our results suggest a new insight connecting sugar metabolism with a mechanism for low-Ca tolerance in plants.