Construction and Effect Analysis of a Mixed <i>Actinomycete</i> Flora for Straw Returning to Albic Soil in Northeast China
This research targets straw return in Farm 852’s albic soil, China. The soil is nutrient-poor with few microbes and slow straw decomposition. Through fixed-point sampling and bacterial screening, an actinomycete consortium consisting of four strains was assembled, and two of them were identified as...
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MDPI AG
2025-02-01
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| Online Access: | https://www.mdpi.com/2076-2607/13/2/385 |
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| author | Xiujie Gong Yang Yu Guoyi Lv Yubo Hao Lingli Wang Juntao Ma Yubo Jiang Jiahe Zou Jingyang Li Qiuju Wang |
| author_facet | Xiujie Gong Yang Yu Guoyi Lv Yubo Hao Lingli Wang Juntao Ma Yubo Jiang Jiahe Zou Jingyang Li Qiuju Wang |
| author_sort | Xiujie Gong |
| collection | DOAJ |
| description | This research targets straw return in Farm 852’s albic soil, China. The soil is nutrient-poor with few microbes and slow straw decomposition. Through fixed-point sampling and bacterial screening, an actinomycete consortium consisting of four strains was assembled, and two of them were identified as new actinomycetes. After 7 days of fermentation, the lignocellulose degradation rates of this consortium outstripped those of single strains, with cellulose degraded at 69.07%, hemicellulose at 64.98%, and lignin at 68.95%. FTIR, XRD, and SEM verified the damage inflicted on the straw structure. Lab simulations found group D (with the consortium) had a higher straw weight loss rate than group C (with commercialized microbial agents) and controls. The compound actinomycetes stepped up the bacterial abundance with the passage of time. In contrast, their effect on fungal abundance was hardly noticeable, but they had markedly ameliorated the soil fertility. These findings prove that the microbial consortium effectively accelerates straw decomposition and boosts soil microbe abundance and fertility in albic soil. It shows great potential for straw return and provides a microbial solution for this field. |
| format | Article |
| id | doaj-art-923849ee798345779066e2abd2cb4c6d |
| institution | OA Journals |
| issn | 2076-2607 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Microorganisms |
| spelling | doaj-art-923849ee798345779066e2abd2cb4c6d2025-08-20T02:03:25ZengMDPI AGMicroorganisms2076-26072025-02-0113238510.3390/microorganisms13020385Construction and Effect Analysis of a Mixed <i>Actinomycete</i> Flora for Straw Returning to Albic Soil in Northeast ChinaXiujie Gong0Yang Yu1Guoyi Lv2Yubo Hao3Lingli Wang4Juntao Ma5Yubo Jiang6Jiahe Zou7Jingyang Li8Qiuju Wang9Heilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Nangang District, Harbin 150086, ChinaHeilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Nangang District, Harbin 150086, ChinaHeilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Nangang District, Harbin 150086, ChinaHeilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Nangang District, Harbin 150086, ChinaShenyang Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenhe District, Shenyang 110016, ChinaHeilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Nangang District, Harbin 150086, ChinaHeilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Nangang District, Harbin 150086, ChinaHeilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Nangang District, Harbin 150086, ChinaHeilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Nangang District, Harbin 150086, ChinaHeilongjiang Academy of Agricultural Sciences, No. 368 Xuefu Road, Nangang District, Harbin 150086, ChinaThis research targets straw return in Farm 852’s albic soil, China. The soil is nutrient-poor with few microbes and slow straw decomposition. Through fixed-point sampling and bacterial screening, an actinomycete consortium consisting of four strains was assembled, and two of them were identified as new actinomycetes. After 7 days of fermentation, the lignocellulose degradation rates of this consortium outstripped those of single strains, with cellulose degraded at 69.07%, hemicellulose at 64.98%, and lignin at 68.95%. FTIR, XRD, and SEM verified the damage inflicted on the straw structure. Lab simulations found group D (with the consortium) had a higher straw weight loss rate than group C (with commercialized microbial agents) and controls. The compound actinomycetes stepped up the bacterial abundance with the passage of time. In contrast, their effect on fungal abundance was hardly noticeable, but they had markedly ameliorated the soil fertility. These findings prove that the microbial consortium effectively accelerates straw decomposition and boosts soil microbe abundance and fertility in albic soil. It shows great potential for straw return and provides a microbial solution for this field.https://www.mdpi.com/2076-2607/13/2/385albic soilstraw returnbacteria screeningactinomycetesstraw degradation |
| spellingShingle | Xiujie Gong Yang Yu Guoyi Lv Yubo Hao Lingli Wang Juntao Ma Yubo Jiang Jiahe Zou Jingyang Li Qiuju Wang Construction and Effect Analysis of a Mixed <i>Actinomycete</i> Flora for Straw Returning to Albic Soil in Northeast China Microorganisms albic soil straw return bacteria screening actinomycetes straw degradation |
| title | Construction and Effect Analysis of a Mixed <i>Actinomycete</i> Flora for Straw Returning to Albic Soil in Northeast China |
| title_full | Construction and Effect Analysis of a Mixed <i>Actinomycete</i> Flora for Straw Returning to Albic Soil in Northeast China |
| title_fullStr | Construction and Effect Analysis of a Mixed <i>Actinomycete</i> Flora for Straw Returning to Albic Soil in Northeast China |
| title_full_unstemmed | Construction and Effect Analysis of a Mixed <i>Actinomycete</i> Flora for Straw Returning to Albic Soil in Northeast China |
| title_short | Construction and Effect Analysis of a Mixed <i>Actinomycete</i> Flora for Straw Returning to Albic Soil in Northeast China |
| title_sort | construction and effect analysis of a mixed i actinomycete i flora for straw returning to albic soil in northeast china |
| topic | albic soil straw return bacteria screening actinomycetes straw degradation |
| url | https://www.mdpi.com/2076-2607/13/2/385 |
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