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Screening for effective microbial consortia against Fusarium wilt of cape gooseberry (Physalis peruviana)
BioControl ( IF 2.2 ) Pub Date : 2021-05-25 , DOI: 10.1007/s10526-021-10095-6
L. F. Izquierdo-García , A. M. Cotes , C. A. Moreno-Velandia

Fusarium oxysporum Schlecht. (Hypocreales: Nectriaceae) is one of the most devastating plant pathogens worldwide, causing vascular wilt in several crops. Management of this disease primarily relies on chemical fungicides and resistant cultivars in high value crops. However, due to the limited efficacy of these methods, alternative control methods are needed. Biological control is a sustainable, safe, and effective alternative, but the use of a single biological control agent (BCA) usually has inconsistent results. The consistency of biocontrol could be enhanced using microbial consortia. In this context, the aim of this work was to select an effective microbial consortium against vascular wilt in cape gooseberry (Physalis peruviana L.) caused by Fusarium oxysporum f. sp. physali, from a mixture of four strains of Trichoderma spp. Pers. (Hypocreales: Hypocraceae) and Bacillus velezensis (Bacillales: Bacillaceae) Bs006. The calculated synergy factor was used as a selection criterion. Then the selected consortium was evaluated in the field and compared to carbendazim. The Trichoderma virens Gl006 and B. velezensis Bs006 consortium showed synergistic activity against vascular wilt under greenhouse and field conditions and efficacy similar to chemical control. These results suggest that Gl006 and Bs006 have a higher potential in controlling Fusarium wilt in cape gooseberry when applied as a consortium compared to separate, single strains.



中文翻译:

筛选抗猕猴桃枯萎病的有效微生物菌群

尖孢镰刀菌Schlecht。(Hypocreales:Nectriaceae)是全球最具破坏力的植物病原体之一,在多种作物中引起维管束枯萎。该病的防治主要依靠高价值农作物中的化学杀真菌剂和抗病品种。但是,由于这些方法的功效有限,因此需要其他控制方法。生物防治是一种可持续,安全和有效的替代方法,但是使用单一生物防治剂(BCA)通常会产生不一致的结果。微生物联合体可以增强生物防治的一致性。在这种情况下,这项工作的目的是选择一种有效的微生物财团来对抗由尖孢镰刀菌Fusarium oxysporum f )引起的海角醋栗(Physalis peruviana L.)中的枯萎病。sp。physali,来自四种木霉属菌株的混合物。人 (Hypocreales:Hypocraceae)和Bacillus velezensis(Bacillales:Bacillaceae)Bs006。计算出的协同因子用作选择标准。然后,对选定的财团进行现场评估,并与多菌灵进行比较。所述绿木霉Gl006和B. velezensis Bs006财团显示对温室和大田条件和功效类似于化学控制下枯萎病协同活性。这些结果表明,与单独的单个菌株相比,当作为财团施用时,Gl006和Bs006在控制灯笼果中的镰刀菌枯萎病具有更高的潜力。

更新日期:2021-05-25
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