首页> 外文期刊>Pest Management Science >Evaluating the combined effect of a systemic phenylpyrrole fungicide and the plant growth-promoting rhizobacteriaParaburkholderia phytofirmans(strainPsJN::gfp2x) against the grapevine trunk pathogenNeofusicoccum parvum
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Evaluating the combined effect of a systemic phenylpyrrole fungicide and the plant growth-promoting rhizobacteriaParaburkholderia phytofirmans(strainPsJN::gfp2x) against the grapevine trunk pathogenNeofusicoccum parvum

机译:评估全身苯基吡咯杀菌剂和植物生长促进的毒杆菌治疗Phytofirmans(LaCeaspsjn :: gfp2x)对葡萄树干病毒的综合作用

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BACKGROUND A new chemical control strategy for grapevine trunk diseases (GTDs) is to develop site-targeted fungicides to protect grapevine vascular tissues. Due to the complexity of GTDs, the effectiveness of a single method is limited. Investigation of the interactions between chemical and biological agents is an essential requirement for integrated control strategies. The effect of a phloem-mobile derivative of the fungicide fenpiclonil (SM 26) in combined use with the plant growth-promoting rhizobacteria,Paraburkholderia phytofirmansPsJN on theNeofusicoccum parvumstrain Bourgogne (NpB) was evaluated. RESULTS SM 26 was found to be translocated to the shoot apices and roots of grapevines through both xylem and phloem after foliage application.In vitrostudies demonstrated that SM 26 exhibited no inhibitory effect on the growth of PsJN and could be largely absorbed into the bacterial cells.In vivoevaluation showed that the combined use of SM 26 and PsJN was the most effective following artificial inoculation of NpB on the stems of rooted Chardonnay and Sauvignon cuttings. Finally, the expression of defence-related genes, including the genes associated with secondary metabolism (ANTS,PAL,STS,Vv17.3), defence proteins (GLUC,PR1,PGIP), redox status (GTS1) and ethylene synthesis (ACC), was found to be strongly upregulated in PsJN + SM 26 cotreated plants compared to non-treated plants (controls), especially for Chardonnay. CONCLUSION The systemic profungicide SM 26 interacts with the biocontrol agent PsJN to stimulate some plant defence responses, and their combined use may present a potential integrated control strategy against GTDs.
机译:背景技术葡萄树干疾病(GTD)的新化学控制策略是开发出现场靶向杀菌剂以保护葡萄血管组织。由于GTD的复杂性,单一方法的有效性有限。对化学和生物制剂之间的相互作用的调查是综合控制策略的必要要求。评估了杀菌剂FENPICLONIL(SM 26)与植物生长促进的流虫组合使用的磷酸植物 - 移动衍生物的影响,评估了THINOFUSICCUM PROFSTRAIN BOURGOGNE(NPB)的PARABURKHOWERIA Phytofirmanspsjn。结果SM 26被发现通过叶子应用后的射击形状和葡萄树根的射击块和根部。在vitriostudies证明SM 26对PSJN的生长表现出没有抑制作用,并且可以在很大程度上被吸收到细菌细胞中。在体内表明SM 26和PSJN的结合使用是在生根霞多丽和Sauvignon切割茎上人工接种后最有效的NPB。最后,抗辩相关基因的表达,包括与次生新陈代谢(蚂蚁,PAL,STS,VV17.3),防御蛋白质(Gluc,PR1,PGIP),氧化还原状态(GTS1)和乙烯合成(ACC)相关的基因与未处理的植物(对照)相比,被发现在PSJN + SM 26个CoTreated植物中强烈上调,特别是对于霞多丽。结论全身先兆子SM 26与生物控制剂PSJN相互作用以刺激一些植物防御反应,它们的组合使用可能为GTD提供潜在的综合控制策略。

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