Potential of combined biological control agents to cope with Phytophthora parasitica, a major pathogen of Choisya ternata

Manasfi, Youssef; Cannesan, Marc-Antoine; Riah, Wassila; Bressan, Mélanie; Laval, Karine; Driouich, Azeddine; Vicré, Maïté; Trinsoutrot‐Gattin, Isabelle

doi:10.1007/s10658-018-1495-7

Cited by 9 publications

(4 citation statements)

References 67 publications

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“…Although Glomus and Trichoderma share more or less same physiology, combined treatment of the two fungi was not recommended as shown by our results but contrary to other studies [17,21,24]. Recently, Manasfi et al [25] explored the potential of combined G. intraradices, Gliocladium catenulatum, T. atroviridae and Bacillus amyloliquefaciens to cope with Phytophthora parasitica , a major pathogen of Choisya ternate (Mexican orange). Significant reduction in the amount of disease and P. parasitica development resulted in the combined treatment of G. intraradices with G. catenulatum and G. intraradices with T. atroviridae.…”

Section: Resultscontrasting

confidence: 69%

Non-Synergistic Effect of Trichoderma harzianum and Glomus spp. in Reducing Infection of Fusarium Wilt in Banana

2019

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Philippine banana is currently threatened by Fusarium oxysporum f. sp. cubense Tropical Race 4 (FocR4). This study investigated the use of Trichoderma harzianum pre-treated with Glomus spp, as a means of managing Fusarium wilt on young ‘Lakatan’ banana seedlings. Results showed that Glomus applied basally significantly improved banana seedling growth with increased increment in plant height and pseudostem diameter and heavier root weight. The application of Glomus spp. alone offered 100% protection to the ‘Lakatan’ seedlings against FocR4 as indicated by the absence of the wilting symptom. A combination of T. harzianum and Glomus spp. also gave significant effect against Fusarium wilt through delayed disease progression in the seedlings but was not synergistic. Competitive effects were suspected when application of the two biological control agents on banana roots was done simultaneously.

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Section: Resultscontrasting

confidence: 69%

Non-Synergistic Effect of Trichoderma harzianum and Glomus spp. in Reducing Infection of Fusarium Wilt in Banana

2019

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“…Compared with single control measures, the combination of chemical and biological control can effectively reduce the resistance of pathogens, and the combination of multiple measures, including seed disinfection, chemical fungicide and beneficial plant microorganisms, are important in agricultural cultivation 36,37 . In pot experiments, the applications of tebuconazole effectively decreased the incidence of RSRD, which may be due to its inhibitory effect on sterol synthesis in fungi and consequent prevention of the pathogens from forming cell membranes, resulting in pathogen death 38–40 .…”

Section: Discussionmentioning

confidence: 99%

Endophytic fungus Phomopsis liquidambarisB3 induces rice resistance to RSRD caused by Fusarium proliferatum and promotes plant growth

et al. 2021

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BACKGROUND Rice spikelet rot disease (RSRD) is an emerging disease that significantly reduces rice yield and quality. In this study, we evaluated the potential use of the broad‐spectrum endophytic fungus Phomopsis liquidambaris B3 as a biocontrol agent against RSRD. We also compared the control effects of different treatments, including chemical fungicides and treatment with multiple strains and single strains in combination or individually, against RSRD. The objective of this study was to find an effective and environmentally friendly control strategy to reduce the occurrence of RSRD and improve the rice yield. RESULTS In pot experiments, the effect of B3 alone was better than that of fungicide or combined measures. The results showed that root colonization by B3 significantly reduced the incidence and disease index of RSRD by 41.0% and 53.8%, respectively. This was related to enhanced superoxide dismutase (SOD), peroxidase (POD), and polyphenol oxidase (PPO) activity, and to significantly upregulated expression levels of OsAOX, OsLOX, OsPAL, and OsPR10 in rice. Moreover, B3 improved the diversity of the bacterial community rather than the fungal community in the rice rhizosphere. It also led to a decrease in Fusarium proliferatum colonization and fumonisin content in the grain. Finally, root development was markedly promoted after B3 inoculation, and the yield improved by 48.60%. The result of field experiments showed that the incidence of RSRD and the fumonisin content were observably reduced in rice receiving B3, by 24.41% and 37.87%, respectively. CONCLUSION The endophytic fungus Phomopsis liquidambaris B3 may become an effective tool to relieve rice spikelet rot disease. © 2020 Society of Chemical Industry

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“…In this investigation, P. putida and B. subtilis, as well as their mixture, were able to maintain the photosynthetic performance of pathogen-inoculated plants suggesting the protective role of these bioagents on photosynthetic apparatus and growth improvement in beetroot under biotic stress. The enhanced effects of biocontrol agents in combination against pathogens have been attributed to the potential synergistic effects of the different mechanisms (Manasfi et al 2018). The mixture of microbes may enhance the genetic diversity of biocontrol systems, persist longer in the rhizosphere, and utilize a broader range of biocontrol mechanisms to suppress the pathogens.…”

Section: Principal Component Analysismentioning

confidence: 99%

Potential of Pseudomonas putida, Bacillus subtilis, and their mixture on the management of Meloidogyne incognita, Pectobacterium betavasculorum, and Rhizoctonia solani disease complex of beetroot (Beta vulgaris L.)

Khan

Siddiqui

2019

Egypt J Biol Pest Control

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Effects of Pseudomonas putida and Bacillus subtilis alone, and in combinations for the management of Meloidogyne incognita, Pectobacterium betavasculorum, and Rhizoctonia solani disease complex of beetroot (Beta vulgaris L.), were studied. Application of P. putida or B. subtilis to plants with M. incognita or P. betavasculorum or R. solani singly or in combinations caused a significant increase in plant growth parameters and the activities of defense enzymes. A significant increase in chlorophyll fluorescence attributes, viz., Fv/Fm, ɸPSII, qP, NPQ, and ETR were recorded in plants treated with P. putida or B. subtilis over pathogen-inoculated plants. Inoculation of P. putida results in a higher reduction in galling and nematode multiplication than B. subtilis. Maximum reduction in nematode multiplication and galling occurred when a mixture of P. putida and B. subtilis was used. Soft rot and root rot indices were 3 when Pectobacterium betavasculorum and Rhizoctonia solani were inoculated alone. The disease indices were rated 5 when these pathogens and M. incognita were inoculated in combinations. Inoculation of P. putida/B. subtilis with P. betavasculorum or R. solani reduced soft rot and root rot indices to 2 out of 3, while the use of P. putida + B. subtilis reduced indices to 1. Disease indices were reduced to 2-3 out of 5, when P. putida + B. subtilis were used to plants inoculated with two or three pathogens. The principal component analysis showed significant correlations among the various studied attributes. Two principal components explained a total of 86.1 and 93.4% of the overall data variability. Therefore, the use of P. putida together with B. subtilis had the potential for successful management of disease complex of beetroot.

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Potential of combined biological control agents to cope with Phytophthora parasitica, a major pathogen of Choisya ternata

Cited by 9 publications

References 67 publications

Non-Synergistic Effect of Trichoderma harzianum and Glomus spp. in Reducing Infection of Fusarium Wilt in Banana

Non-Synergistic Effect of Trichoderma harzianum and Glomus spp. in Reducing Infection of Fusarium Wilt in Banana

Endophytic fungus Phomopsis liquidambarisB3 induces rice resistance to RSRD caused by Fusarium proliferatum and promotes plant growth

Potential of Pseudomonas putida, Bacillus subtilis, and their mixture on the management of Meloidogyne incognita, Pectobacterium betavasculorum, and Rhizoctonia solani disease complex of beetroot (Beta vulgaris L.)

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