Current Understanding and Future Directions of Biocontrol of Plant Diseases by Bacillus spp., with Special Reference to Induced Systemic Resistance

Mahapatra, Sunita; Chakraborty, Sunanda; Samanta, Malay K.; Das, Srikanta; Islam, Tofazzal

doi:10.1007/978-3-030-85465-2_6

Cited by 8 publications

(2 citation statements)

References 106 publications

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“…These metabolites are classified into the heptapeptides surfactins (pumilacidins/lichenisins) and iturins (iturin A, mycosubtilin, bacillomycin) and the decapeptides fengycins (plipastatins); together with their homologues of different alkyl chain lengths (C 12 - C 17 for surfactins, C 13 -C 17 for iturins and C 14 -C 18 for fengycins) ( Théatre et al., 2022 ). They are produced by members of the Bacillus subtilis group and are known to be involved in the induction of resistance in plants ( Pršić and Ongena, 2020 ; Dimkić et al., 2022 ; Mahapatra et al., 2022 ) and, thanks to their amphiphilic nature, exhibit antimicrobial activities against a wide range of pathogenic microorganisms by penetrating and disrupting the cell membrane of target organisms ( Fira et al., 2018 ; Ngalimat et al., 2021 ; Puan et al., 2023 ).…”

Section: Bacillus As Successful Pgpr For Biological Controlmentioning

confidence: 99%

Bacillus-based biocontrol beyond chemical control in central Africa: the challenge of turning myth into reality

Nihorimbere,

Korangi Alleluya,

Nimbeshaho

et al. 2024

Front. Plant Sci.

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Agricultural productivity in the Great Lakes Countries of Central Africa, including Burundi, Rwanda, and the Democratic Republic of Congo, is affected by a wide range of diseases and pests which are mainly controlled by chemical pesticides. However, more than 30% of the pesticides used in the region are banned in European Union due to their high toxicity. Globally available safe and eco-friendly biological alternatives to chemicals are virtually non-existent in the region. Bacillus PGPR-based biocontrol products are the most dominant in the market and have proven their efficacy in controlling major plant diseases reported in the region. With this review, we present the current situation of disease and pest management and urge the need to utilize Bacillus-based control as a possible sustainable alternative to chemical pesticides. A repertoire of strains from the Bacillus subtilis group that have shown great potential to antagonize local pathogens is provided, and efforts to promote their use, as well as the search for indigenous and more adapted Bacillus strains to local agro-ecological conditions, should be undertaken to make sustainable agriculture a reality in the region.

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Section: Bacillus As Successful Pgpr For Biological Controlmentioning

confidence: 99%

Bacillus-based biocontrol beyond chemical control in central Africa: the challenge of turning myth into reality

Nihorimbere,

Korangi Alleluya,

Nimbeshaho

et al. 2024

Front. Plant Sci.

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“…A potent biocontrol agent not only depends on the plant-microbe interaction but also on the soil microbial community (Ye et al 2020). In general, biocontrol agents suppress phytopathogens through competitive root colonization, secretion of antimicrobial compounds, and induction of systemic resistance responses in host plants (Ongena & Jacques 2008;Mahapatra et al 2022). Therefore, a potent biocontrol agent requires screening of microbes that can adapt to complex soil environments and have novel biocontrol mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Bacillus tequilensis influences metabolite production in tomato and restores soil microbial diversity during Fusarium oxysporum infection

Bhattacharya,

Chauhan,

Singh

et al. 2024

Plant Biol J

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This study evaluates cellular damage, metabolite profiling, and defence‐related gene expression in tomato plants and soil microflora during Fusarium wilt disease after treatment with B. tequilensis PBE‐1. Histochemical analysis showed that PBE‐1 was the primary line of defence through lignin deposition and reduced cell damage. GC–MS revealed that PBE‐1 treatment ameliorated stress caused by F. oxysporum infection. PBE‐1 also improved transpiration, photosynthesis, and stomatal conductance in tomato. qRT‐PCR suggested that the defence‐related genes FLS2, SERK, NOS, WRKYT, NHO, SAUR, and MYC2, which spread infection, were highly upregulated during F. oxysporum infection, but either downregulated or expressed normally in PBE‐1 + P treated plants. This indicates that the plant not only perceives the bio‐control agent as a non‐pathogen entity but its presence in normal metabolism and gene expression within the host plant is maintained. The study further corroborated findings that application of PBE‐1 does not cause ecological disturbances in the rhizosphere. Activity of soil microflora across four treatments, measured by Average Well Colour Development (AWCD), showed continuous increases from weeks 1 to 4 post-pathogen infection, with distinct substrate usage patterns like tannic and fumaric acids impacting microbial energy source utilization and diversity. Principal Component Analysis (PCA) and diversity indices like McIntosh, Shannon, and Simpson further illustrated significant microbial community shifts over the study period. In conclusion, our findings demonstrate that B. tequilensis PBE‐1 is an ideal bio‐agent for field application during Fusarium wilt disease management in tomato.

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Antifungal Compounds of Plant Growth-Promoting Bacillus Species

2022

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Current Understanding and Future Directions of Biocontrol of Plant Diseases by Bacillus spp., with Special Reference to Induced Systemic Resistance

Cited by 8 publications

References 106 publications

Bacillus-based biocontrol beyond chemical control in central Africa: the challenge of turning myth into reality

Bacillus-based biocontrol beyond chemical control in central Africa: the challenge of turning myth into reality

Bacillus tequilensis influences metabolite production in tomato and restores soil microbial diversity during Fusarium oxysporum infection

Antifungal Compounds of Plant Growth-Promoting Bacillus Species

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