Different Responses of Soil Environmental Factors, Soil Bacterial Community, and Root Performance to Reductive Soil Disinfestation and Soil Fumigant Chloropicrin

Yu, Zhan; Yan, Ning; Miao, Xinyue; Li, Qiong; Chen, Changbao

doi:10.3389/fmicb.2021.796191

Cited by 8 publications

(4 citation statements)

References 73 publications

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“…Flavisolibacter is an important iron-reducing agent, converting Fe 3+ to Fe 2+ both directly and indirectly under anaerobic conditions, and Fe 2+ accumulation significantly inhibits plant pathogen growth ( 50 , 56 ). Sphingomonas is a microorganism that has good environmental adaptability and tolerance and can degrade polycyclic aromatic hydrocarbons and phenols ( 31 ). Sphingomonas was positively correlated with manganese oxidation and chloroplasts but negatively correlated with aromatic compound degradation or nitrate reduction.…”

Section: Discussionmentioning

confidence: 99%

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Effects of reductive soil disinfestation combined with different types of organic materials on the microbial community and functions

Zhan,

Zhou,

Wang

et al. 2024

Microbiol Spectr

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Reductive soil disinfestation (RSD) is an effective method to inhibit soilborne pathogens. However, it remains unclear how RSD combined with different types of organic materials affects the soil ecosystems of perennial plants. Pot experiments were conducted to investigate the effects of RSD incorporated with perilla (PF), alfalfa (MS), ethanol, and acetic acid on soil properties, enzyme activities, microbial communities and functions, and seedling growth. Results showed that RSD-related treatments improved soil properties and enzyme activities, changed microbial community composition and structure, enhanced microbial interactions and functions, and facilitated seedling growth. Compared with CK, RSD-related treatments increased soil pH, available nitrogen, and available potassium contents, sucrase and catalase activities, and decreased soil electric conductivity values. Meanwhile, RSD-related treatment also significantly reduced the relative abundance of Fusarium while increasing the relative abundance of Arthrobacter , Terrabacter , and Gemmatimonas . The reduction was more evident in PF and MS treatment, suggesting the potential for RSD combined with solid agricultural wastes to suppress pathogens. Furthermore, the microbial network of RSD-related treatment was more complex and interconnected, and the functions related to carbon, nitrogen, sulfur, and hydrogen cycling were significantly increased, while the functions of bacterial and fungal plant pathogens were decreased. Importantly, RSD-related treatments also significantly promoted seed germination and seedling growth. In summary, RSD combined with solid agricultural wastes is better than liquid easily degradable compounds by regulating the composition and function of microbial communities to improve soil quality and promote plant growth. IMPORTANCE Reductive soil disinfestation (RSD) is an effective agricultural practice. We found that RSD combined with solid agricultural wastes is better than that of liquid easily degradable compounds, may improve soil quality and microbial community structure, inhibit the proliferation of pathogenic bacteria, and contribute to the growth of replanted crops. Thus, RSD combined with solid agricultural wastes is more effective than liquid easily degradable compounds.

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Section: Discussionmentioning

confidence: 99%

“…Polymerase chain reaction (PCR) was conducted using primers 338F/806R and ITS1F/ITS2R for amplification. The protocols described by Zhan et al ( 31 ) and Tan et al ( 24 ) were used for the amplification of bacterial 16S rRNA and fungal ITS genes and analysis of PCR product purity.…”

Section: Methodsmentioning

confidence: 99%

Effects of reductive soil disinfestation combined with different types of organic materials on the microbial community and functions

Zhan,

Zhou,

Wang

et al. 2024

Microbiol Spectr

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“…It should be noted that the specific effects of biostimulants may vary depending on the type of treatment and the time point during the growing season at which measurements are taken. In a recent study (66), it was suggested that the use of biostimulants, such as the Bacillus-species inoculant based on eight strains used in our study, could promote the growth and diversity of beneficial microorganisms in the soil, potentially leading to improved soil health and plant growth. Our findings support this notion, since the application of biostimulant in non-fumigated soils (T2 treatment) promotes a persistent high proportion of Firmicutes in T2 plots.…”

Section: Treatments Effects On Soil Bacterial Community Compositionmentioning

confidence: 94%

Artificial network inference analysis reveals the impact of biostimulant on bacterial communities in fumigated soil for potato production against common scab

Tekeu,

Jeanne,

D’Astous-Pagé

et al. 2023

Front. Soil Sci.

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Introduction and methodsAs part of a study on control methods of common scab disease impact on potato yield and quality, high-throughput sequencing was used to measure the effects of soil fumigant chloropicrin alone or in combination with a Bacillus species-based biostimulant on soil bacterial diversity in terms of richness and composition, as well as on soil bacterial network interactions.Results and discussionThe results showed that common scab caused significant net yield losses of more than 46.25% in potatoes of control plots (T1), while the use of the fumigant alone (T3) and the use of the fumigant with the biostimulant (T4) reduced net yield losses to less than 2.5%. These treatments also promoted gross yield increases of 23.5 cwt. acre-1 (7.06%) and 28 cwt. acre-1 (8.41%) respectively. The study found that using the soil fumigant chloropicrin significantly and persistently altered the composition of the soil bacterial community over the growing season. The modifications of the soil bacterial community induced by the inoculation of the Bacillus species-based biostimulant are distinct by the end of the growing season depending on whether the soil has been fumigated (T4) or not (T2). Interestingly, artificial network inference analysis showed that the T2 treatment had the highest number of edges and linkages, contrary to the T3 treatment that had the lowest number of edges and linkages. The fumigation alone treatment leads to a reduction in interactions, while the application of the biostimulant, in both non-fumigated and fumigated soil, results in increased interactions and a higher number of connections within a phylum or between different taxa. Furthermore, the treatment combining the fumigant and the biostimulant exhibits a moderate increase in various network properties, providing evidence for the positive effect of biostimulant inoculation on bacterial communities in fumigated soils. Our results provide a more detailed understanding of the bacterial community structure and diversity in the soil of the different treatments. Moreover, deciphering network interactions in soil bacterial communities is fundamentally important for research in soil microbial ecology of potato cropping systems.

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“…The biomass (fresh weight and dry weight) of each group was measured. In addition, the root activity was determined by the 2,3,5-triphenyl tetrazolium chloride (TTC) method ( Zhan et al, 2021 ). Root activity is expressed as the mass of triphenyl formazan produced per gram of fresh root per hour.…”

Section: Methodsmentioning

confidence: 99%

Potential of Medicago sativa and Perilla frutescens for overcoming the soil sickness caused by ginseng cultivation

et al. 2023

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There are serious soil sickness in ginseng cultivation. Crop rotation is an effective agricultural management to improve soil sustainability and reduce soil sickness. To explore an appropriate ginseng rotation system, Medicago sativa (alfalfa) and Perilla frutescens (perilla) were planted on ginseng cultivation soil for 1 year to evaluate the improvement effect of both. Through chemical analysis and high-throughput sequencing technology, we found that after alfalfa and perilla cultivation for one-year, various nutrients and enzyme activities in ginseng cultivation soil were significantly improved. In addition, perilla significantly increased the diversity and richness of soil fungal communities. Cultivation of alfalfa and perilla significantly changed the composition of soil bacterial and fungal communities and significantly reduced the abundance of the potentially pathogenic fungi Ilyonectria. Further pot experiments also showed that the improved soil could significantly increase root activity of ginseng plant after two plants were planted. It should be noted that, unlike alfalfa, perilla decreased soil electrical conductivity, increased soil organic matter, soil urease, and may significantly improve the diversity and richness of soil fungal community. Moreover, in the pot experiment, the root fresh weight of ginseng cultured in perilla treated soil increased significantly. This study highlights that perilla may have better soil improvement effect than alfalfa and it has the potential to be used in the soil improvement of ginseng cultivation.

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Different Responses of Soil Environmental Factors, Soil Bacterial Community, and Root Performance to Reductive Soil Disinfestation and Soil Fumigant Chloropicrin

Cited by 8 publications

References 73 publications

Effects of reductive soil disinfestation combined with different types of organic materials on the microbial community and functions

Effects of reductive soil disinfestation combined with different types of organic materials on the microbial community and functions

Artificial network inference analysis reveals the impact of biostimulant on bacterial communities in fumigated soil for potato production against common scab

Potential of Medicago sativa and Perilla frutescens for overcoming the soil sickness caused by ginseng cultivation

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