The NAC gene family in the halophyte Limonium bicolor Identification, expression analysis, and regulation of abiotic stress tolerance

The NAC gene family in the halophyte Limonium bicolor : Identification, expression analysis, and regulation of abiotic stress tolerance

Copyright © 2024 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 208(2024) vom: 26. März, Seite 108462
1. Verfasser: Zhang, Mingjing (VerfasserIn)
Weitere Verfasser: Hou, Xueting, Yang, Hui, Wang, Juying, Li, Ying, Liu, Qing, Zhang, Caixia, Wang, Baoshan, Chen, Min
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Transcription Factors
Beschreibung
Zusammenfassung:Copyright © 2024 Elsevier Masson SAS. All rights reserved.
NAC transcription factors regulate plant growth, development, and stress responses. However, the number, types, and biological functions of Limonium bicolor LbNAC genes have remained elusive. L. bicolor secretes excessive salt ions through salt glands on its stems and leaves to reduce salt-induced damage. Here, we identified 63 NAC members (LbNAC1-63) in L. bicolor, which were unevenly distributed across eight chromosomes. Cis-elements in the LbNAC promoters were related to growth and development, stress responses, and phytohormone responses. We observed strong colinearity between LbNACs and GmNACs from soybean (Glycine max). Thus, LbNAC genes may share similar functions with GmNAC genes. Expression analysis indicated that 16 LbNAC genes are highly expressed in roots, stems, leaves, and flowers, whereas 17 LbNAC genes were highly expressed throughout salt gland development, suggesting that they may regulate this developmental stage. Silencing LbNAC54 in L. bicolor decreased salt gland density, salt secretion from leaves, and overall salt tolerance. In agreement, genes related to salt gland development were significantly downregulated in LbNAC54-silenced lines. Our findings shed light on LbNAC genes and help elucidate salt gland development and salt secretion in L. bicolor. Our data also provide insight into NAC functions in halophytes
Beschreibung:Date Completed 01.04.2024
Date Revised 01.04.2024
published: Print-Electronic
Citation Status MEDLINE
ISSN:1873-2690
DOI:10.1016/j.plaphy.2024.108462