Influence of Bacillus subtilis strain Z-14 on microbial communities of wheat rhizospheric soil infested with Gaeumannomyces graminis var. tritici

Liu, Zhaosha; Xiao, Jiawen; Zhang, Xuechao; Dou, Sen; Gao, Tongguo; Wang, Dongmei; Zhang, Dongdong

doi:10.3389/fmicb.2022.923242

Cited by 5 publications

(8 citation statements)

References 55 publications

(51 reference statements)

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“…Ascomycota constituted the greatest proportion (17.82-58.43%), followed by Basidiomycota and Mortierellomycota in all samples (Figure 1 and Table S1). Liu et al [9] similarly reported that Ascomycota was the major phylum, accounting for 68.75-78.30% of the total fungal OTUs, obtained from wheat rhizospheric soil samples, followed by Mortierellomycota and Basidiomycota, which is consistent with the present results. These findings imply a similarity in the structure of the rhizospheric fungal communities of plants growing in the field or a greenhouse, and also among different plant species and soil types, suggesting that the rhizospheric fungal community structure shows a high innate stability [36].…”

Section: Effects Of Bacillus Bf1 and Y37 On Fungal Community Structur...supporting

confidence: 92%

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Two Bacillus spp. Strains Improve the Structure and Diversity of the Rhizosphere Soil Microbial Community of Lilium brownii var. viridulum

et al. 2023

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Lily Fusarium wilt disease caused by Fusarium spp. spreads rapidly and is highly destructive, leading to a severe reduction in yield. In this study, lily (Lilium brownii var. viridulum) bulbs were irrigated after planting with suspensions of two Bacillus strains that effectively control lily Fusarium wilt disease to assess their effects on the rhizosphere soil properties and microbial community. A high-throughput sequencing of microorganisms in the rhizosphere soil was performed and the soil physicochemical properties were measured. The FunGuild and Tax4Fun tools were used for a functional profile prediction. The results showed that Bacillus amyloliquefaciens BF1 and B. subtilis Y37 controlled lily Fusarium wilt disease with control efficacies of 58.74% and 68.93%, respectively, and effectively colonized the rhizosphere soil. BF1 and Y37 increased the bacterial diversity and richness of the rhizosphere soil and improved the physicochemical properties of the soil, thereby favoring the proliferation of beneficial microbes. The relative abundance of beneficial bacteria was increased and that of pathogenic bacteria was decreased. Bacillus abundance in the rhizosphere was positively correlated with most soil physicochemical properties, whereas Fusarium abundance was negatively correlated with most physicochemical properties. Functional prediction revealed that irrigation with BF1 and Y37 significantly upregulated glycolysis/gluconeogenesis among metabolism and absorption pathways. This study provides insights into the mechanism by which two Bacillus strains with antifungal activity, BF1 and Y37, antagonize plant pathogenic fungi and lays the foundation for their effective application as biocontrol agents.

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Section: Effects Of Bacillus Bf1 and Y37 On Fungal Community Structur...supporting

confidence: 92%

“…The endospores formed by Bacillus spp. Are highly resistant to heat and desiccation; these properties enable their development into commercial products that can be easily stored and have a long shelf life [ 8 , 9 ]. Bacillus spp.…”

Section: Introductionmentioning

confidence: 99%

Two Bacillus spp. Strains Improve the Structure and Diversity of the Rhizosphere Soil Microbial Community of Lilium brownii var. viridulum

et al. 2023

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“…This study showed that the application of Bacillus increased the closeness of the rhizosphere bacterial communities in the two soils, especially by increasing the diversity and complexity of the interactions between bacteria in red soil and increasing the degree of aggregation. These findings are consistent with those of Liu et al who similarly showed that the microbial agent B. subtilis Z-14 could enhance the network integrity of wheat rhizosphere bacterial communities [54]. However, due to the large number of microbial groups with large differences in abundance in the two soils, it is not yet possible to accurately determine the specific groups that can inhibit or promote the growth of Bacillus.…”

Section: Application Of Bacillus Significantly Promoted Phosphate Upt...supporting

confidence: 90%

Difference in the Effect of Applying Bacillus to Control Tomato Verticillium Wilt in Black and Red Soil

Guo,

Lu,

Liu

et al. 2024

Microorganisms

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In practical applications, the effectiveness of biological control agents such as Bacillus is often unstable due to different soil environments. Herein, we aimed to explore the control effect and intrinsic mechanism of Bacillus in black soil and red soil in combination with tomato Verticillium wilt. Bacillus application effectively controlled the occurrence of Verticillium wilt in red soil, reducing the incidence by 19.83%, but played a limited role in black soil. Bacillus colonized red soil more efficiently. The Verticillium pathogen decreased by 71.13% and 76.09% after the application of Bacillus combinations in the rhizosphere and bulk of the red soil, respectively, while there was no significant difference in the black soil. Additionally, Bacillus application to red soil significantly promoted phosphorus absorption. Furthermore, it significantly altered the bacterial community in red soil and enriched genes related to pathogen antagonism and phosphorus activation, which jointly participated in soil nutrient activation and disease prevention, promoting tomato plant growth in red soil. This study revealed that the shaping of the bacterial community by native soil may be the key factor affecting the colonization and function of exogenous Bacillus.

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“…In some cases, the microbial inoculants may compete with the native microbes for resources, which can result in a decrease in the abundance of these native microbes (Qiu et al, 2019 ). However, in other cases, the microbial inoculants may interact with the same genus of microbes in a positive way, which can enhance the overall functioning of the soil ecosystem (Liu et al, 2022 ). This positive relationship between microbial inoculants and the same genus of microbes in the soil highlights the potential of microbial inoculants to work in concert with existing microbial communities, resulting in a more robust and resilient soil ecosystem.…”

Section: Discussionmentioning

confidence: 99%

Microbial inoculants with higher capacity to colonize soils improved wheat drought tolerance

Li,

Wang,

Liu

et al. 2023

Microbial Biotechnology

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Microbial inoculants have gained increasing attention worldwide as an eco‐friendly solution for improving agriculture productivity. Several studies have demonstrated their potential benefits, such as enhanced resistance to drought, salinity, and pathogens. However, the beneficial impacts of inoculants remain inconsistent. This variability is attributed to limited knowledge of the mechanisms by which microbial inoculants affect crop growth and a lack of ecological characteristics of these inoculants that limit our ability to predict their beneficial effects. The first important step is believed to be the evaluation of the inoculant's ability to colonize new habitats (soils and plant roots), which could provide crops with beneficial functions and improve the consistency and efficiency of the inoculants. In this study, we aimed to investigate the impact of three microbial inoculants (two bacterial: P1 and P2, and one fungal: P3) on the growth and stress responses of three wheat varieties in two different soil types under drought conditions. Furthermore, we investigated the impact of microbial inoculants on soil microbial communities. Plant biomass and traits were measured, and high‐throughput sequencing was used to characterize bulk and rhizosphere soil microbiomes after exposure to drought stress. Under drought conditions, plant shoot weight significantly increased (11.37%) under P1 treatments compared to uninoculated controls. In addition, total nitrogen enzyme activity increased significantly under P1 in sandy soil but not in clay soil. Importantly, network analyses revealed that P1, consisting of Bacillus paralicheniformis and Bacillus subtilis, emerged as the keystone taxa in sandy soil. Conversely, P2 and P3 failed to establish as keystone taxa, which may explain their insignificant impact on wheat performance under drought conditions. In conclusion, our study emphasizes the importance of effective colonization by microbial inoculants in promoting crop growth under drought conditions. Our findings support the development of microbial inoculants that robustly colonize plant roots for improved agricultural productivity.

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Influence of Bacillus subtilis strain Z-14 on microbial communities of wheat rhizospheric soil infested with Gaeumannomyces graminis var. tritici

Cited by 5 publications

References 55 publications

Two Bacillus spp. Strains Improve the Structure and Diversity of the Rhizosphere Soil Microbial Community of Lilium brownii var. viridulum

Two Bacillus spp. Strains Improve the Structure and Diversity of the Rhizosphere Soil Microbial Community of Lilium brownii var. viridulum

Difference in the Effect of Applying Bacillus to Control Tomato Verticillium Wilt in Black and Red Soil

Microbial inoculants with higher capacity to colonize soils improved wheat drought tolerance

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