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MaSMG7-Mediated Degradation of MaERF12 Facilitates Fusarium oxysporum f. sp. cubense Tropical Race 4 Infection in Musa acuminata

International journal of molecular sciences, 2024-03, Vol.25 (6), p.3420 [Peer Reviewed Journal]

2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2024 by the authors. 2024 ;ISSN: 1661-6596 ;EISSN: 1422-0067 ;DOI: 10.3390/ijms25063420 ;PMID: 38542394

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  • Title:
    MaSMG7-Mediated Degradation of MaERF12 Facilitates Fusarium oxysporum f. sp. cubense Tropical Race 4 Infection in Musa acuminata
  • Author: Huang, Huoqing ; Liu, Siwen ; Huo, Yile ; Tian, Yuzhen ; Liu, Yushan ; Yi, Ganjun ; Li, Chunyu
  • Subjects: banana wilt ; Bananas ; Biosynthesis ; Brief Report ; Cell death ; Fusarium - genetics ; Fusarium oxysporum f. sp. cubense tropical race 4 ; Gene Expression Profiling ; Genes ; Infections ; Kinases ; Leaves ; MaERF12 ; MaSMG7 ; Musa - genetics ; Pathogens ; Plant Breeding ; Plant diseases ; Plant Diseases - genetics ; Plant Roots - genetics ; Rice ; Transcription factors
  • Is Part Of: International journal of molecular sciences, 2024-03, Vol.25 (6), p.3420
  • Description: Modern plant breeding relies heavily on the deployment of susceptibility and resistance genes to defend crops against diseases. The expression of these genes is usually regulated by transcription factors including members of the AP2/ERF family. While these factors are a vital component of the plant immune response, little is known of their specific roles in defense against f. sp. tropical race 4 ( TR4) in banana plants. In this study, we discovered that MaERF12, a pathogen-induced ERF in bananas, acts as a resistance gene against TR4. The yeast two-hybrid assays and protein-protein docking analyses verified the interaction between this gene and MaSMG7, which plays a role in nonsense-mediated RNA decay. The transient expression of MaERF12 in was found to induce strong cell death, which could be inhibited by MaSMG7 during co-expression. Furthermore, the immunoblot analyses have revealed the potential degradation of MaERF12 by MaSMG7 through the 26S proteasome pathway. These findings demonstrate that MaSMG7 acts as a susceptibility factor and interferes with MaERF12 to facilitate TR4 infection in banana plants. Our study provides novel insights into the biological functions of the MaERF12 as a resistance gene and MaSMG7 as a susceptibility gene in banana plants. Furthermore, the first discovery of interactions between MaERF12 and MaSMG7 could facilitate future research on disease resistance or susceptibility genes for the genetic improvement of bananas.
  • Publisher: Switzerland: MDPI AG
  • Language: English
  • Identifier: ISSN: 1661-6596
    EISSN: 1422-0067
    DOI: 10.3390/ijms25063420
    PMID: 38542394
  • Source: MEDLINE
    PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals
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