Unveiling the driving role of pH on community stability and function during lignocellulose degradation in paddy soil
IntroductionCrop straw, a major by-product of agricultural production, is pivotal in maintaining soil health and preserving the ecological environment. While straw incorporation is widely recognized as a sustainable practice, the incomplete decomposition of crop residues poses challenges to plant gr...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-02-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1338842/full |
| _version_ | 1797295208719712256 |
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| author | Yi Wang Yonglun Chen Yonglun Chen Xiuqing Gao Xiuqing Gao Qiong Wang Mingyu Cui Mingyu Cui Dongdong Zhang Peng Guo Peng Guo |
| author_facet | Yi Wang Yonglun Chen Yonglun Chen Xiuqing Gao Xiuqing Gao Qiong Wang Mingyu Cui Mingyu Cui Dongdong Zhang Peng Guo Peng Guo |
| author_sort | Yi Wang |
| collection | DOAJ |
| description | IntroductionCrop straw, a major by-product of agricultural production, is pivotal in maintaining soil health and preserving the ecological environment. While straw incorporation is widely recognized as a sustainable practice, the incomplete decomposition of crop residues poses challenges to plant growth, increasing the risk of pests and diseases. This necessitates a comprehensive investigation.MethodsThe current study employs a 28-day pot experiment to simulate the degradation of rice straw in paddy soils. The impacts of bioaugmentation and biostimulation on lignocellulose degradation are systematically evaluated.ResultsResults indicate a high lignocellulose degradation ability in paddy soil, with over 80% straw weight loss within 28 days. Bioaugmentation with a lignocellulolytic microbial consortium enhances straw degradation during the initial stage (0–14 days). In contrast, biostimulation with readily available nutrients leads to soil acidification, hindering straw degradation and reducing microbial diversity. Furthermore, pH emerges as a critical factor influencing microbial community stability and function during lignocellulose degradation. Microbial co-occurrence network analysis reveals that microorganisms occupy ecological niches associated with different cellulose components. Notably, Module M2, comprising Proteobacteria, Firmicutes, Gemmatimonadota, Actinobacteriota, Bacteroidota, Myxococcota, Halobacterota, and Acidobacteriota, positively correlates with pH and weight loss.DiscussionThis study significantly advances our understanding of microbial mechanisms in soil decomposition, emphasizing the pivotal role of pH in community stability and function in paddy soil. These findings can inform future strategies for managing rice straw while safeguarding soil ecosystem health. |
| first_indexed | 2024-03-07T21:43:27Z |
| format | Article |
| id | doaj.art-58f56d912eef435c922c96f17862440e |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-03-07T21:43:27Z |
| publishDate | 2024-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-58f56d912eef435c922c96f17862440e2024-02-26T04:22:51ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2024-02-011510.3389/fmicb.2024.13388421338842Unveiling the driving role of pH on community stability and function during lignocellulose degradation in paddy soilYi Wang0Yonglun Chen1Yonglun Chen2Xiuqing Gao3Xiuqing Gao4Qiong Wang5Mingyu Cui6Mingyu Cui7Dongdong Zhang8Peng Guo9Peng Guo10Institute of Agricultural Products Processing and Nuclear Agriculture Technology Research, Hubei Academy of Agricultural Sciences, Wuhan, ChinaInstitute of Agricultural Products Processing and Nuclear Agriculture Technology Research, Hubei Academy of Agricultural Sciences, Wuhan, ChinaSichuan Jiahuai Biotechnology Co., Ltd., Leshan, ChinaInstitute of Agricultural Products Processing and Nuclear Agriculture Technology Research, Hubei Academy of Agricultural Sciences, Wuhan, ChinaCollege of Biological and Pharmaceutical Sciences, Three Gorges University, Yichang, ChinaInstitute of Agricultural Products Processing and Nuclear Agriculture Technology Research, Hubei Academy of Agricultural Sciences, Wuhan, ChinaInstitute of Agricultural Products Processing and Nuclear Agriculture Technology Research, Hubei Academy of Agricultural Sciences, Wuhan, ChinaCollege of Biological and Pharmaceutical Sciences, Three Gorges University, Yichang, ChinaInstitute of Marine Biology, Ocean College, Zhejiang University, Zhoushan, Zhejiang, ChinaInstitute of Agricultural Products Processing and Nuclear Agriculture Technology Research, Hubei Academy of Agricultural Sciences, Wuhan, ChinaHubei Hongshan Laboratory, Wuhan, ChinaIntroductionCrop straw, a major by-product of agricultural production, is pivotal in maintaining soil health and preserving the ecological environment. While straw incorporation is widely recognized as a sustainable practice, the incomplete decomposition of crop residues poses challenges to plant growth, increasing the risk of pests and diseases. This necessitates a comprehensive investigation.MethodsThe current study employs a 28-day pot experiment to simulate the degradation of rice straw in paddy soils. The impacts of bioaugmentation and biostimulation on lignocellulose degradation are systematically evaluated.ResultsResults indicate a high lignocellulose degradation ability in paddy soil, with over 80% straw weight loss within 28 days. Bioaugmentation with a lignocellulolytic microbial consortium enhances straw degradation during the initial stage (0–14 days). In contrast, biostimulation with readily available nutrients leads to soil acidification, hindering straw degradation and reducing microbial diversity. Furthermore, pH emerges as a critical factor influencing microbial community stability and function during lignocellulose degradation. Microbial co-occurrence network analysis reveals that microorganisms occupy ecological niches associated with different cellulose components. Notably, Module M2, comprising Proteobacteria, Firmicutes, Gemmatimonadota, Actinobacteriota, Bacteroidota, Myxococcota, Halobacterota, and Acidobacteriota, positively correlates with pH and weight loss.DiscussionThis study significantly advances our understanding of microbial mechanisms in soil decomposition, emphasizing the pivotal role of pH in community stability and function in paddy soil. These findings can inform future strategies for managing rice straw while safeguarding soil ecosystem health.https://www.frontiersin.org/articles/10.3389/fmicb.2024.1338842/fullpaddy soilstraw incorporationbioaugmentationbiostimulationmicrobial communitypH influence |
| spellingShingle | Yi Wang Yonglun Chen Yonglun Chen Xiuqing Gao Xiuqing Gao Qiong Wang Mingyu Cui Mingyu Cui Dongdong Zhang Peng Guo Peng Guo Unveiling the driving role of pH on community stability and function during lignocellulose degradation in paddy soil Frontiers in Microbiology paddy soil straw incorporation bioaugmentation biostimulation microbial community pH influence |
| title | Unveiling the driving role of pH on community stability and function during lignocellulose degradation in paddy soil |
| title_full | Unveiling the driving role of pH on community stability and function during lignocellulose degradation in paddy soil |
| title_fullStr | Unveiling the driving role of pH on community stability and function during lignocellulose degradation in paddy soil |
| title_full_unstemmed | Unveiling the driving role of pH on community stability and function during lignocellulose degradation in paddy soil |
| title_short | Unveiling the driving role of pH on community stability and function during lignocellulose degradation in paddy soil |
| title_sort | unveiling the driving role of ph on community stability and function during lignocellulose degradation in paddy soil |
| topic | paddy soil straw incorporation bioaugmentation biostimulation microbial community pH influence |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1338842/full |
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