解淀粉芽孢杆菌 MBI600 菌株诱导番茄植株水杨酸依赖型抗性，以抵抗番茄斑萎病毒和马铃薯 Y 病毒。
Bacillus amyloliquefaciens strain MBI600 induces salicylic acid dependent resistance in tomato plants against Tomato spotted wilt virus and Potato virus Y.
机构信息
Foundation for Research and Technology, Institute of Molecular Biology and Biotechnology, Heraklion/Crete, GR-71110, Greece.
Keck School of Medicine, University of South California, 2020 ZONAL AVE. Off Campus, Los Angeles, USA.
出版信息
Sci Rep. 2018 Jul 9;8(1):10320. doi: 10.1038/s41598-018-28677-3.
Plant growth promoting rhizobacteria have been proposed as effective biocontrol agents against several fungal and bacterial plant pathogens. However, there is limited knowledge regarding their effect against viruses. In this study, Bacillus amyloliquefaciens strain MBI600 (MBI600), active ingredient of the biological fungicide Serifel® (BASF SE), was tested for its antiviral action in tomato plants. Drench, foliar or soil amendment applications of MBI600 reduced up to 80% the incidence of Tomato spotted wilt virus under two different sets of environmental conditions. In addition, drench application of MBI600 delayed Potato virus Y systemic accumulation. Transcriptional analysis of a range of genes associated with salicylic acid (SA)- or jasmonic acid - related defense, priming or basal defense against viruses, revealed the induction of the SA signaling pathway in tomato after MBI600 treatment, and discrete gene expression patterns in plant response to TSWV and PVY infection.
植物促生根际细菌已被提议作为几种真菌和细菌植物病原体的有效生物防治剂。然而，关于它们对病毒的作用知之甚少。在这项研究中，解淀粉芽孢杆菌菌株 MBI600（MBI600），生物杀菌剂 Serifel®（巴斯夫 SE）的有效成分，在番茄植物中测试了其抗病毒作用。MBI600 的灌根、叶面或土壤改良应用在两种不同的环境条件下将番茄斑点萎蔫病毒的发病率降低了高达 80%。此外，MBI600 的灌根处理延迟了马铃薯 Y 病毒的系统积累。与水杨酸 (SA) 或茉莉酸相关防御、病毒初级或基础防御相关的一系列基因的转录分析表明，MBI600 处理后番茄中诱导了 SA 信号通路，以及植物对 TSWV 和 PVY 感染的不同基因表达模式。
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