Jang Seonghan, Kim Doyeon, Lee Soohyun, Ryu Choong-Min
Infectious Disease Research Center, KRIBB, Daejeon, Republic of Korea.
Department of Biosystems and Bioengineering Program, Korea Research Institute of Bioscience and Biotechnology (KRIBB) School of Biotechnology, University of Science and Technology (UST), Daejeon, Republic of Korea.
Front Plant Sci. 2024 Aug 2;15:1411837. doi: 10.3389/fpls.2024.1411837. eCollection 2024.
, a notorious phytopathogen, is responsible for causing bacterial wilt, leading to significant economic losses globally in many crops within the Solanaceae family. Despite various cultural and chemical control strategies, managing bacterial wilt remains a substantial challenge. This study demonstrates, for the first time, the effective use of plant-induced bacterial gene silencing against , facilitated by -mediated gene silencing, to control bacterial wilt symptoms in . The methodology described in this study could be utilized to identify novel phytobacterial virulence factors through both forward and reverse genetic approaches. To validate plant-induced gene silencing, small RNA fractions extracted from plant exudates were employed to silence bacterial gene expression, as indicated by the reduction in the expression of GFP and virulence genes in . Furthermore, treatment of human and plant pathogenic Gram-negative and Gram-positive bacteria with plant-generated small RNAs resulted in the silencing of target genes within 48 hours. Taken together, the results suggest that this technology could be applied under field conditions, offering precise, gene-based control of target bacterial pathogens while preserving the indigenous microbiota.
一种臭名昭著的植物病原体,导致细菌性枯萎病,在全球范围内给许多茄科作物造成重大经济损失。尽管有各种栽培和化学防治策略,但控制细菌性枯萎病仍然是一项重大挑战。本研究首次证明,通过介导的基因沉默有效利用植物诱导的细菌基因沉默来对抗,以控制中的细菌性枯萎病症状。本研究中描述的方法可用于通过正向和反向遗传方法鉴定新型植物细菌毒力因子。为了验证植物诱导的基因沉默,从植物渗出物中提取的小RNA组分被用于沉默细菌基因表达,如中GFP和毒力基因表达的降低所示。此外,用植物产生的小RNA处理人和植物致病的革兰氏阴性和革兰氏阳性细菌导致48小时内靶基因沉默。综上所述,结果表明该技术可在田间条件下应用,在保留本土微生物群的同时,对目标细菌病原体提供精确的、基于基因的控制。