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Genome-wide Identification and Characterization of NPF Family Reveals NtNPF6.13 Involving in Salt Stress in

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Journal Front Plant Sci
Date 2022 Oct 31
PMID 36311086
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Abstract

Proteins of the Nitrate Transporter 1/Peptide Transporter (NPF) family transport a diverse variety of substrates, such as nitrate, peptides, hormones and chloride. In this study, a systematic analysis of the tobacco () family was performed in the cultivated 'K326'. In total, 143 genes were identified and phylogenetically classified into eight subfamilies, NPF1 to NPF8, based on the classification of NPF families in other plant species. The chromosomal locations and structures of the genes were analyzed. The expression profiles of genes under NaCl stress were analyzed to screen the possible genes involving in chloride regulation in tobacco. Most genes responded to salt stress in the roots and leaves. The expression of was significantly down-regulated after salt stress for 12h. The chloride content was reduced in the roots of mutant. These findings support the participation of in chloride uptake. Several other genes that play potential roles in chloride metabolism of tobacco require further study.

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