{"title":"莱姆斯 chinensis 的 Na+/H+ 反转运体基因（LcNHX1）的分离与功能分析","authors":"Chuanbo Sun, Chuang Zhang, Yuejia Yin, Ying Wang, Shujing Mu, Qing Liu, Ziyu Wang, Yang Liu, Chunxiao Zhang, Xiangguo Liu, Yan Zhang, Jia Guo","doi":"10.1007/s11105-024-01446-5","DOIUrl":null,"url":null,"abstract":"<p>Saline-alkali stress has adverse effects on plant growth. Some plant Na<sup>+</sup>/H<sup>+</sup> antiporters were reported to be important in salt tolerance. However, it needs to be better understood that Na<sup>+</sup>/H<sup>+</sup> antiporters are involved in plant salt-alkali (NaHCO<sub>3</sub>/Na<sub>2</sub>CO<sub>3</sub>) tolerance. In this study, a Na<sup>+</sup>/H<sup>+</sup> antiporter gene <i>LcNHX1</i> (China patent No.200810050629.1) has been cloned from <i>Leymus chinensis.</i> The <i>LcNHX1</i> CDS contains 1614 bp that encodes 537 amino acids<i>.</i> Amino acid and nucleotide sequence similarity, protein topology modelling, conserved functional domains in the protein sequence, and subcellular localization classified <i>LcNHX1</i> as a vacuolar <i>NHX1</i> homolog. Transcription analysis by quantitative RT-PCR indicated that upregulated expression of <i>LcNHX1</i> could be induced by NaCl, NaHCO<sub>3</sub>, NaCl + NaHCO<sub>3</sub>, and PGE in <i>L. chinensis</i> seedlings. The expression of <i>LcNHX1</i> partially complements the salt-sensitive phenotypes of a <i>Δnhx1</i> yeast strain. In addition, <i>LcNHX1</i> overexpressing enhanced the tolerance to NaHCO<sub>3</sub> stress in the transgenic Arabidopsis. Taken together, these results indicated that <i>LcNHX1</i> is a potential candidate gene for enhancing plant saline-alkali tolerance.</p>","PeriodicalId":20215,"journal":{"name":"Plant Molecular Biology Reporter","volume":"121 1","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Isolation and Functional Analysis of Na+/H+ Antiporter Gene (LcNHX1) from Leymus chinensis\",\"authors\":\"Chuanbo Sun, Chuang Zhang, Yuejia Yin, Ying Wang, Shujing Mu, Qing Liu, Ziyu Wang, Yang Liu, Chunxiao Zhang, Xiangguo Liu, Yan Zhang, Jia Guo\",\"doi\":\"10.1007/s11105-024-01446-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Saline-alkali stress has adverse effects on plant growth. Some plant Na<sup>+</sup>/H<sup>+</sup> antiporters were reported to be important in salt tolerance. However, it needs to be better understood that Na<sup>+</sup>/H<sup>+</sup> antiporters are involved in plant salt-alkali (NaHCO<sub>3</sub>/Na<sub>2</sub>CO<sub>3</sub>) tolerance. In this study, a Na<sup>+</sup>/H<sup>+</sup> antiporter gene <i>LcNHX1</i> (China patent No.200810050629.1) has been cloned from <i>Leymus chinensis.</i> The <i>LcNHX1</i> CDS contains 1614 bp that encodes 537 amino acids<i>.</i> Amino acid and nucleotide sequence similarity, protein topology modelling, conserved functional domains in the protein sequence, and subcellular localization classified <i>LcNHX1</i> as a vacuolar <i>NHX1</i> homolog. Transcription analysis by quantitative RT-PCR indicated that upregulated expression of <i>LcNHX1</i> could be induced by NaCl, NaHCO<sub>3</sub>, NaCl + NaHCO<sub>3</sub>, and PGE in <i>L. chinensis</i> seedlings. The expression of <i>LcNHX1</i> partially complements the salt-sensitive phenotypes of a <i>Δnhx1</i> yeast strain. In addition, <i>LcNHX1</i> overexpressing enhanced the tolerance to NaHCO<sub>3</sub> stress in the transgenic Arabidopsis. Taken together, these results indicated that <i>LcNHX1</i> is a potential candidate gene for enhancing plant saline-alkali tolerance.</p>\",\"PeriodicalId\":20215,\"journal\":{\"name\":\"Plant Molecular Biology Reporter\",\"volume\":\"121 1\",\"pages\":\"\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-03-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Plant Molecular Biology Reporter\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1007/s11105-024-01446-5\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"BIOCHEMICAL RESEARCH METHODS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant Molecular Biology Reporter","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1007/s11105-024-01446-5","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOCHEMICAL RESEARCH METHODS","Score":null,"Total":0}
Isolation and Functional Analysis of Na+/H+ Antiporter Gene (LcNHX1) from Leymus chinensis
Saline-alkali stress has adverse effects on plant growth. Some plant Na+/H+ antiporters were reported to be important in salt tolerance. However, it needs to be better understood that Na+/H+ antiporters are involved in plant salt-alkali (NaHCO3/Na2CO3) tolerance. In this study, a Na+/H+ antiporter gene LcNHX1 (China patent No.200810050629.1) has been cloned from Leymus chinensis. The LcNHX1 CDS contains 1614 bp that encodes 537 amino acids. Amino acid and nucleotide sequence similarity, protein topology modelling, conserved functional domains in the protein sequence, and subcellular localization classified LcNHX1 as a vacuolar NHX1 homolog. Transcription analysis by quantitative RT-PCR indicated that upregulated expression of LcNHX1 could be induced by NaCl, NaHCO3, NaCl + NaHCO3, and PGE in L. chinensis seedlings. The expression of LcNHX1 partially complements the salt-sensitive phenotypes of a Δnhx1 yeast strain. In addition, LcNHX1 overexpressing enhanced the tolerance to NaHCO3 stress in the transgenic Arabidopsis. Taken together, these results indicated that LcNHX1 is a potential candidate gene for enhancing plant saline-alkali tolerance.
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The scope of the journal of Plant Molecular Biology Reporter has expanded to keep pace with new developments in molecular biology and the broad area of genomics. The journal now solicits papers covering myriad breakthrough technologies and discoveries in molecular biology, genomics, proteomics, metabolomics, and other ‘omics’, as well as bioinformatics.
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