Padmathilake Kaluhannadige Rasanie Eranka, Fernando Wannakuwattewaduge Gerard Dilantha
Department of Plant Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
Plants (Basel). 2022 Apr 6;11(7):996. doi: 10.3390/plants11070996.
is a less virulent spp. that causes blackleg disease in canola. Previous studies from our lab have shown that inoculation with the less virulent can boost the resistance of canola plants against the highly virulent . The objective of this study was to confirm the effectiveness of as a biocontrol agent against utilizing morphology, fluorescence microscopy, gene quantification, and transcriptomic analysis. The in planta development of two species inoculated at different time points was assessed using fluorescent protein-tagged isolates which are GFP-tagged and DsRed-tagged . The growth inhibition of by pre-and co-inoculated was supported by no lesion development on cotyledons and no or weak fluorescence protein-tagged mycelia under the confocal microscope. The host defense-related genes, , , , and were upregulated in inoculated Westar cotyledons compared to inoculated cotyledons. The quantification of each pathogen through qPCR assay and gene expressions analysis on host defense-related genes by RT-qPCR confirmed the potential of "brassicae' in the management of the blackleg disease pathogen, 'brassicae', in canola.
是一种毒性较低的物种,可导致油菜黑胫病。我们实验室之前的研究表明,接种毒性较低的菌株可以增强油菜植株对高毒性菌株的抗性。本研究的目的是利用形态学、荧光显微镜、基因定量和转录组分析来确认作为一种生物防治剂对的有效性。使用绿色荧光蛋白标记的菌株(GFP标记的和DsRed标记的)评估了在不同时间点接种的两种物种在植物体内的发育情况。共聚焦显微镜下,子叶上无病斑形成,荧光蛋白标记的菌丝体无荧光或荧光较弱,这支持了预先接种和共同接种对的生长抑制作用。与接种的子叶相比,接种Westar子叶中与宿主防御相关的基因、、、和上调。通过qPCR测定对每种病原体进行定量,并通过RT-qPCR对宿主防御相关基因进行基因表达分析,证实了“芸苔属”在油菜黑胫病病原体“芸苔属”管理中的潜力。