Combined use of <i>Bacillus subtilis</i> strain B‐001 and bactericide for the control of tomato bacterial wilt

Di, Peng; Luo, Keming; Jiang, Hongyun; Deng, Yanan; Bai, Lianyang; Zhou, Xiaomao

doi:10.1002/ps.4453

Cited by 23 publications

(27 citation statements)

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“…Disease development was monitored daily for 21 days after inoculation with FJAT91. Disease incidence and control efficiency were calculated as described previously 34 …”

Section: Methodsmentioning

confidence: 99%

“…Disease incidence and control efficiency were calculated as described previously. 34 Biofilm formation of FJAT1458-RFP, FJAT1458, FJAT91-GFP, and FJAT91 was measured by the crystal violet staining method according to Holmberg et al (2009). 35 Three virulence factors, exopolysaccharide I (EPS I), ⊎-1,4-endoglucanase (Egl) and motility were compared in FJAT1458-RFP, FJAT1458, FJAT91-GFP, and FJAT91.…”

Section: Determination Of Growth Curve Biocontrol Activity Biofilm Fo...mentioning

confidence: 99%

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An avirulent Ralstonia solanacearum strain FJAT1458 outcompetes with virulent strain and induces tomato plant resistance against bacterial wilt

Zheng

Xiao

Chen

et al. 2022

Pest Management Science

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BACKGROUND Bacterial wilt (BW) caused by Ralstonia solanacearum (RS) is considered as one of the most destructive plant diseases. An avirulent strain of RS, FJAT1458, is a potential biocontrol agent of BW. In this study, the mechanism of FJAT1458 against BW was evaluated. RESULTS FJAT1458 was tagged with the red fluorescent protein gene, and the resulting strain was named as FJAT1458‐RFP. When FJAT1458‐RFP and FJAT91‐GFP (a virulent strain of RS labelled with the green fluorescent protein gene), were co‐inoculated in potted tomato plants, the colonization of FJAT91‐GFP reached an almost undetectable level at 7 days post‐inoculation (dpi) in the roots and at 9 dpi in rhizosphere soil. When they were co‐inoculated in a hydroponic tomato growing system, numbers of the two strains were similar at 3 dpi in the root tissues; however, FJAT91‐GFP was not detected at 9 dpi while FJAT1458‐RFP maintained 1.77 × 105 CFU g−1. The inoculation of FJAT1458‐RFP alone or combination with FJAT91‐GFP significantly increased tomato root activity. Moreover, expression levels of the defense‐related genes PR‐1a, GLUA, and CHI3 in tomato roots were significantly up‐regulated by FJAT1458‐RFP and co‐inoculation of FJAT1458‐RFP and FJAT91‐GFP at 5 dpi, compared to the control (water, CK) treatment. Noteworthy, expression levels of GLUA in the treatments of FJAT1458‐RFP and FJAT1458‐RFP + FJAT91‐GFP were 12.22‐ and 12.05‐fold higher than that in the CK at 5 dpi, respectively. CONCLUSIONS The results suggested that the avirulent strain FJAT1458‐RFP could suppress colonization of the virulent strain in tomato roots, and induce tomato plant resistance against BW. © 2022 Society of Chemical Industry.

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“…Disease development was monitored daily for 21 days after inoculation with FJAT91. Disease incidence and control efficiency were calculated as described previously 34 …”

Section: Methodsmentioning

confidence: 99%

Section: Determination Of Growth Curve Biocontrol Activity Biofilm Fo...mentioning

confidence: 99%

An avirulent Ralstonia solanacearum strain FJAT1458 outcompetes with virulent strain and induces tomato plant resistance against bacterial wilt

Zheng

Xiao

Chen

et al. 2022

Pest Management Science

View full text Add to dashboard Cite

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“…The perniciousness of plant diseases has risen significantly due to current agricultural practices including intensive cultivation, overuse of fertilizers, utilization of high-yield but pathogen-susceptible cultivars, and consecutive years of continuous cropping ( Chakraborty and Newton, 2011 ; Ghorbanpour et al, 2018 ). Thus, disease management strategies targeting plant pathogens are of vital importance ( Peng et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Fungal Inhibition of Agricultural Soil Pathogen Stimulated by Nitrogen-Reducing Fertilization

Shen

Shi

et al. 2022

Front. Bioeng. Biotechnol.

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Plant health is the fundamental of agricultural production, which is threatened by plant pathogens severely. The previous studies exhibited the effects of different pathogen control strategies (physical, chemical, and microbial methods), which resulted from bringing in exogenous additives, on microbial community structures and functions. Nevertheless, few studies focused on the potential inhibitory abilities of native microbial community in the soil, which could be activated or enhanced by different fertilization strategies. In this study, three plant diseases (TMV, TBS, and TBW) of tobacco, fungal community of tobacco rhizosphere soil, and the correlation between them were researched. The results showed that nitrogen-reducing fertilization strategies could significantly decrease the occurrence rate and the disease index of three tobacco diseases. The results of bioinformatics analyses revealed that the fungal communities of different treatments could differentiate the nitrogen-reducing fertilization group and the control group (CK). Furthermore, key genera which were responsible for the variation of fungal community were explored by LEfSe analysis. For instance, Tausonia and Trichocladium increased, while Naganishia and Fusicolla decreased under nitrogen-reducing fertilization conditions. Additionally, the correlation between tobacco diseases and key genera was verified using the Mantel test. Moreover, the causal relationship between key genera and tobacco diseases was deeply explored by PLS–PM analysis. These findings provide a theoretical basis for a nitrogen-reducing fertilization strategy against tobacco diseases without exogenous additives and make contributions to revealing the microbial mechanism of native-valued fungal key taxa against tobacco diseases, which could be stimulated by agricultural fertilization management.

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“…However, they may not coexist harmoniously in a mixture and their action is not always additive. Their interaction can be synergistic or antagonistic [ 29 , 30 , 31 , 32 , 33 , 34 , 35 ], depending on the concentration, species, mode of action, target organism, temperature conditions, and relative humidity (r.h) conditions of each biopesticide [ 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 ]. The combined use of two or more biopesticides in one mixture may result in less (or more) environmental harm or less (or more) harm to nontarget organisms [ 48 , 49 , 50 ].…”

Section: Introductionmentioning

confidence: 99%

Combined Toxicity of Cannabidiol Oil with Three Bio-Pesticides against Adults of Sitophilus Zeamais, Rhyzopertha Dominica, Prostephanus Truncatus and Trogoderma Granarium

Mantzoukas

Kalyvas

Ntoukas

et al. 2020

IJERPH

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The present study investigates the interaction between cannabidiol (CBD) oil and three biopesticides: Azatin and two baculovirus formulations (Madex and Helicovex), both separately and in combination, in order to investigate their interaction against adults of four major coleopteran stored-product pests: Sitophilus zeamais (Coleoptera: Curculionidae), Rhyzopertha dominica (Coleoptera: Bostrichidae), Prostephanus truncatus (Coleoptera: Bostrichidae) and Trogoderma granarium (Coleoptera: Dermestidae). CBD, which has been understudied for its insecticidal properties, was applied at three different doses (500, 1500 and 3000 ppm). The biopesticides were administered at 1500 ppm. Interactions in the combined treatments were mathematically estimated as not synergistic and mostly competitive except for the combined treatments of CBD (1500 and 3000 ppm) with Azatin (1500 ppm) which were marked by an additive interaction. In its individual application, CBD oil generated the highest insect mortality while its effect was clearly dose-dependent. The findings reveal a promising effect of CBD oil against these coleopterans which had not been previously tested together.

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Combined use of Bacillus subtilis strain B‐001 and bactericide for the control of tomato bacterial wilt

Abstract: The combination of Saisentong and B-001 effectively controls tomato bacterial wilt. The integrated strategy represents a promising new tool to control this disease. © 2016 Society of Chemical Industry.

Cited by 23 publications

References 31 publications

An avirulent Ralstonia solanacearum strain FJAT1458 outcompetes with virulent strain and induces tomato plant resistance against bacterial wilt

An avirulent Ralstonia solanacearum strain FJAT1458 outcompetes with virulent strain and induces tomato plant resistance against bacterial wilt

Fungal Inhibition of Agricultural Soil Pathogen Stimulated by Nitrogen-Reducing Fertilization

Combined Toxicity of Cannabidiol Oil with Three Bio-Pesticides against Adults of Sitophilus Zeamais, Rhyzopertha Dominica, Prostephanus Truncatus and Trogoderma Granarium

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