An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity
Abstract 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. More...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-12-01
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| Series: | Chemical and Biological Technologies in Agriculture |
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| Online Access: | https://doi.org/10.1186/s40538-022-00365-5 |
| _version_ | 1797977551151300608 |
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| author | Setu Bazie Tagele Ryeong-Hui Kim Minsoo Jeong Da-Ryung Jung Dokyung Lee Jae-Ho Shin |
| author_facet | Setu Bazie Tagele Ryeong-Hui Kim Minsoo Jeong Da-Ryung Jung Dokyung Lee Jae-Ho Shin |
| author_sort | Setu Bazie Tagele |
| collection | DOAJ |
| description | Abstract 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 |
| first_indexed | 2024-04-11T05:09:50Z |
| format | Article |
| id | doaj.art-97ae40b78ed34daab42419ab4f74d59f |
| institution | Directory Open Access Journal |
| issn | 2196-5641 |
| language | English |
| last_indexed | 2024-04-11T05:09:50Z |
| publishDate | 2022-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Chemical and Biological Technologies in Agriculture |
| spelling | doaj.art-97ae40b78ed34daab42419ab4f74d59f2022-12-25T12:07:28ZengSpringerOpenChemical and Biological Technologies in Agriculture2196-56412022-12-019111610.1186/s40538-022-00365-5An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversitySetu Bazie Tagele0Ryeong-Hui Kim1Minsoo Jeong2Da-Ryung Jung3Dokyung Lee4Jae-Ho Shin5Department of Applied Biosciences, Kyungpook National UniversityDepartment of Integrative Biology, Kyungpook National UniversityDepartment of Applied Biosciences, Kyungpook National UniversityDepartment of Applied Biosciences, Kyungpook National UniversityDepartment of Integrative Biology, Kyungpook National UniversityDepartment of Applied Biosciences, Kyungpook National UniversityAbstract 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 Abstracthttps://doi.org/10.1186/s40538-022-00365-5BiofumigantCapsaicinoidsIllumina MiSeqPepperSoil microbiotaWeed |
| spellingShingle | Setu Bazie Tagele Ryeong-Hui Kim Minsoo Jeong Da-Ryung Jung Dokyung Lee Jae-Ho Shin An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity Chemical and Biological Technologies in Agriculture Biofumigant Capsaicinoids Illumina MiSeq Pepper Soil microbiota Weed |
| title | An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity |
| title_full | An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity |
| title_fullStr | An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity |
| title_full_unstemmed | An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity |
| title_short | An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity |
| title_sort | optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity |
| topic | Biofumigant Capsaicinoids Illumina MiSeq Pepper Soil microbiota Weed |
| url | https://doi.org/10.1186/s40538-022-00365-5 |
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