Anaerobic soil disinfestation for the management of soilborne pathogens: A review

Lopes, E. A.; Canedo, Ellen Júnia; Gomes, Vanessa Alves; Vieira, Bruno Sérgio; Parreira, D. F.; Neves, W. S.

doi:10.1016/j.apsoil.2022.104408

Cited by 24 publications

(17 citation statements)

References 64 publications

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“…Soil microbes are essential for nutrient cycling, soil fertility, crop protection, and productivity [41]. Biofumigation reshapes the soil microbiota [10,13] via introduction or activation of beneficial microbes [12,42,43]. Our findings reveal that the 1% biofumigant at 4 weeks of fumigation had no negative impact on the bacterial and fungal diversities, while improving the intra-and inter-kingdom network complexity of the soil.…”

Section: Soil Microbial Dynamics After Biofumigation Is Concentration...mentioning

confidence: 73%

“…Biofumigation is gaining popularity as a sustainable management option because it improves the biological and physicochemical properties of soil. Various volatile organic compounds such as acetic acid and butyric acid, which are toxic to soil-borne pathogens, weed seeds, and insect pests, are produced and accumulated as a result of organic matter decomposition [9,10]. Biofumigation also creates a favorable environment for many beneficial microbes [10][11][12], which can potentially suppress the emergence of soil-borne bacterial and fungal pathogens and play an invaluable role in soil nutrient cycling and crop yield [11,13].…”

Section: Introductionmentioning

confidence: 99%

“…Various volatile organic compounds such as acetic acid and butyric acid, which are toxic to soil-borne pathogens, weed seeds, and insect pests, are produced and accumulated as a result of organic matter decomposition [9,10]. Biofumigation also creates a favorable environment for many beneficial microbes [10][11][12], which can potentially suppress the emergence of soil-borne bacterial and fungal pathogens and play an invaluable role in soil nutrient cycling and crop yield [11,13]. However, the efficacy of biofumigation varies depending on the type of substrate and application rate [3,9,12].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, brassicas would exert better biofumigation effects, thereby boosting disinfestation efficiency and significantly alleviating the issues of continuous cultivation [12,15]. In addition, although biofumigation improves soil health and productivity in many other crops [10,13], little is known about its effects on pepper fruit pungency. Capsaicinoids, particularly capsaicin and dihydrocapsaicin, are the primary components that impart pungency to chili peppers [16].…”

Section: Introductionmentioning

confidence: 99%

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An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity

Tagele

Kim

Jeong

et al. 2022

Chem. Biol. Technol. Agric.

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Background Biofumigation is a non-chemical sustainable approach that reshapes soil microbiota to overcome challenges in way of continuous cultivation. However, the type and quantity of substrate have a significant impact on microbiota shifts and the subsequent success of biofumigation. Moreover, studies on the effects of biofumigant concentration in combination with fumigation duration on soil microbiota dynamics are very rare. Research methods We performed microcosm experiments to investigate how a biofumigant (Korean canola cultivar, HanRa) at various concentrations (0.5%, 1%, 2–4% w/w: biofumigant/soil) and fumigation periods (2–4 weeks) affects the soil bacterial and fungal communities. Subsequently, pot experiments employing two Korean canola cultivars (HanRa and YongSan) at 1% (w/w) were carried out. Results Illumina MiSeq analysis revealed that 2–4% biofumigant, regardless of incubation period, had a significant negative impact on microbial diversity and network complexity. In contrast, 1% biofumigant transformed the bacterial, fungal, and inter-kingdom networks into a highly connected and complex network without affecting microbial diversity. Bacillus, Clostridium, and Pseudomonas were the most highly stimulated bacterial genera in the biofumigated soils, whereas the abundance of Acidobacteria members was greatly reduced. The 2–4% amendments had substantially and more differentially abundant Fusarium than the 1%. Soil nutrition (e.g., pH, nitrate, ammonium, and exchangeable potassium), fruit yield, and weed suppression were enhanced in subsequent pot experiments. Of the nine soil chemical properties, phosphate and exchangeable potassium were the main factors influencing the microbial community assembly. Conclusions Optimized biofumigation-mediated increase in nitrate, ammonium, and potassium availability in the soil without causing any negative effects on soil microbial diversity indicates its potential as a preplant to improve crop productivity. This study contributes significantly to our understanding of how an optimal biofumigant can help ameliorate obstacles in continuous cropping. Graphical Abstract

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Section: Soil Microbial Dynamics After Biofumigation Is Concentration...mentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity

Tagele

Kim

Jeong

et al. 2022

Chem. Biol. Technol. Agric.

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“…Soil amendment is an environmentally benign alternative approach to chemical fumigation that is efficient in suppressing soil-borne diseases ( Zhou et al., 2019 ; Lopes et al., 2022 ). Soil amendment involves soil incorporation with organic materials and covering it with a polyethylene film for at least two weeks at an optimal temperature ( Momma et al., 2006 ).…”

Section: Introductionmentioning

confidence: 99%

Soil amendment with cow dung modifies the soil nutrition and microbiota to reduce the ginseng replanting problem

et al. 2023

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Ginseng is a profitable crop worldwide; however, the ginseng replanting problem (GRP) is a major threat to its production. Soil amendment is a non-chemical method that is gaining popularity for alleviating continuous cropping obstacles, such as GRP. However, the impact of soil amendment with either cow dung or canola on GRP reduction and the associated soil microbiota remains unclear. In the present study, we evaluated the effect of soil amendment with cow dung, canola seed powder, and without amendment (control), on the survival of ginseng seedling transplants, the soil bacterial and fungal communities, and their associated metabolic functions. The results showed that cow dung increased ginseng seedling survival rate by 100 percent and had a remarkable positive effect on ginseng plant growth compared to control, whereas canola did not. Cow dung improved soil nutritional status in terms of pH, electrical conductivity, NO3−, total carbon, total phosphorus, and available phosphorus. The amplicon sequencing results using Illumina MiSeq showed that canola had the strongest negative effect in reducing soil bacterial and fungal diversity. On the other hand, cow dung stimulated beneficial soil microbes, including Bacillus, Rhodanobacter, Streptomyces, and Chaetomium, while suppressing Acidobacteriota. Community-level physiological profiling analysis using Biolog Ecoplates containing 31 different carbon sources showed that cow dung soil had a different metabolic activity with higher utilization rates of carbohydrates and polymer carbon sources, mainly Tween 40 and beta-methyl-d-glucoside. These carbon sources were most highly associated with Bacillota. Furthermore, predicted ecological function analyses of bacterial and fungal communities showed that cow dung had a higher predicted function of fermentation and fewer functions related to plant pathogens and fungal parasites, signifying its potential to enhance soil suppressiveness. Co-occurrence network analysis based on random matrix theory (RMT) revealed that cow dung transformed the soil microbial network into a highly connected and complex network. This study is the first to report the alleviation of GRP using cow dung as a soil amendment, and the study contributes significantly to our understanding of how the soil microbiota and metabolic alterations via cow dung can aid in GRP alleviation.

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Rhizosphere microbial community assembly as influenced by reductive soil disinfestation to resist successive cropping obstacle

Qingshan,

Ruizhe,

Lingying

et al. 2024

J Sci Food Agric

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BackgroundReductive soil disinfestation (RSD), which involves creating anaerobic conditions and incorporating large amounts of organic materials into the soil, has been identified as a reliable strategy for reducing soilborne diseases in successive cropping systems. However, limited research exists on the connections between soil microorganism composition and plant diseases under various types of organic material applications. This study aimed to evaluate the effects of distinct RSD strategies (control without soil amendment; RSD with 1500 kg ha−1 molasses powder; RSD with 3000 kg ha−1 molasses powder; RSD with 3000 kg ha−1 molasses powder and 37.5–41.3 kg ha−1 microbial agent) on the plant disease index, bacterial community composition and network structure in rhizosphere soil.ResultsRSD treatments significantly reduced the occurrence of black shank disease in tobacco and increased soil bacterial diversity. High amounts of molasses powder in RSD treatments further enhanced disease inhibition and reduced fungal abundance and Shannon index. RSD also increased the relative abundance of bacterial phylum Firmicutes and fungal phylum Ascomycota, while decreasing the relative abundance of bacterial phyla Chloroflexi and Acidobacteriota and fungal phylum Basidiomycota in rhizosphere soil. A multiple regression model identified bacterial positive cohesion as the primary factor influencing the plant disease index, with a greater impact than bacterial negative cohesion and community stability. The competition among beneficial bacteria for creating a healthy rhizosphere environment is likely a key factor in the success of RSD in reducing plant disease risk.ConclusionRSD, especially with higher rates of molasses powder, is a viable strategy for controlling black shank disease in tobacco and promoting soil health by fostering beneficial microbial communities. This study provides guidelines for soil management and plant disease prevention. © 2024 Society of Chemical Industry.

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Anaerobic soil disinfestation for the management of soilborne pathogens: A review

Cited by 24 publications

References 64 publications

An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity

An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity

Soil amendment with cow dung modifies the soil nutrition and microbiota to reduce the ginseng replanting problem

Rhizosphere microbial community assembly as influenced by reductive soil disinfestation to resist successive cropping obstacle

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