Plant NAC Transcription Factors

A special issue of Agronomy (ISSN 2073-4395).

Deadline for manuscript submissions: closed (28 February 2021) | Viewed by 3945

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Guest Editor
Department of Biology, University of South Dakota, Vermillion, SD 57069, USA
Interests: evolution; molecular cloning; extremophyte; abiotic stress; functional genomics; nanotechnologies; omics; transcriptional regulation; gene regulatory networks; environmental stress resiliency
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Special Issue Information

The NAC transcription factor is one of the largest plant-specific transcription factor families that are involved in a multitude of regulatory roles including growth, development, defense, and stress responses. This Special Issue intends to summarize the recent progress in our understanding of the many regulatory functions of NAC proteins. Our goal is to provide a compendium of the latest discoveries regarding this multifunctional regulatory protein and its potential applications in agriculture.

Dr. Bernard W. M. Wone
Guest Editor

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Keywords

  • Abiotic stress
  • NAC domain protein
  • Biotic stress
  • Growth
  • Development
  • Stress response
  • Immunity
  • Plant adaptation to land
  • Climate change
  • Drought
  • Productivity

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Published Papers (1 paper)

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Research

17 pages, 3854 KiB  
Article
OsNAC300 Positively Regulates Cadmium Stress Responses and Tolerance in Rice Roots
by Shubao Hu, Kamran Iqbal Shinwari, Yuxinrui Song, Jixing Xia, Heng Xu, Binbin Du, Le Luo and Luqing Zheng
Agronomy 2021, 11(1), 95; https://doi.org/10.3390/agronomy11010095 - 6 Jan 2021
Cited by 16 | Viewed by 3374
Abstract
Transcriptional regulation is involved in responding to cadmium (Cd) stress in plants. However, the molecular mechanisms of Cd stress responses regulated by transcription factors remain largely unknown in plants. In this study, a rice (Oryza sativa) NAC (no apical meristem [NAM]; [...] Read more.
Transcriptional regulation is involved in responding to cadmium (Cd) stress in plants. However, the molecular mechanisms of Cd stress responses regulated by transcription factors remain largely unknown in plants. In this study, a rice (Oryza sativa) NAC (no apical meristem [NAM]; Arabidopsis transcription activation factor [ATAF]; cup-shaped cotyledon [CUC]-related) family transcription factor, OsNAC300, was isolated and functionally characterized for its involvement in Cd stress responses and tolerance. OsNAC300 was localized to the nucleus. OsNAC300 was mainly expressed in roots and significantly induced by Cd treatment. Knockout of OsNAC300 resulted in increased sensitivity to Cd stress, while its overexpression lines enhanced tolerance to Cd stress. RNA-Seq analysis revealed that the mutant is impaired in regulating some important genes that were responsive to Cd stress in wild-type rice, such as the pathogenesis-related genes 10a (OsPR10a), OsPR10b, chalcone synthase 1 (OsCHS1), and several others, which was validated by reverse transcription quantitative polymerase chain reaction (RT-qPCR) analysis. Moreover, chromatin immunoprecipitation-qPCR assays and luciferase reporter assays demonstrated that OsNAC300 directly binds to the promoters of OsPR10a, OsPR10b, and OsCHS1 and activates their transcription. Overall, OsNAC300 is an important regulatory factor in Cd stress responses and tolerance in rice. Full article
(This article belongs to the Special Issue Plant NAC Transcription Factors)
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