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Liu M, Xue R, Yang C, Han N, Hu Y, Gu K, Zhao J, Guan S, Su J, Jiang Y. Rotation with other crops slow down the fungal process in tobacco-growing soil. Sci Rep 2024; 14:14160. [PMID: 38898096 PMCID: PMC11187129 DOI: 10.1038/s41598-024-64735-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 06/12/2024] [Indexed: 06/21/2024] Open
Abstract
Continuous cultivation of tobacco could cause serious soil health problems, which could cause bacterial soil to change to fungal soil. In order to study the diversity and richness of fungal community in tobacco-growing soil under different crop rotation, three treatments were set up in this study: CK (tobacco continuous cropping); B (barley-tobacco rotation cropping) and R (oilseed rape-tobacco rotation cropping). The results of this study showed that rotation with other crops significantly decreased the soil fungal OTUs, and also decreased the community richness, evenness, diversity and coverage of fungal communities. Among them, B decreased the most. In the analysis of the composition and structure of the fungal community, it was found that the proportion of plant pathogens Nectriaceae decreased from 19.67% in CK to 5.63% in B, which greatly reduced the possibility of soil-borne diseases. In the analysis of the correlation between soil environmental factors and fungal communities, it was found that Filobasidiaceae had a strong correlation with TP and AP, and Erysiphaceae had a strong correlation with TK and AK. NO3--N and NH4+-N were the two environmental factors with the strongest correlation with fungal communities. The results of this study showed that rotation with other crops slowed down the process of soil fungi in tobacco-growing soil and changed the dominant species of soil fungi community. At the same time, crop rotation changed the diversity and richness of soil fungal community by changing the physical and chemical properties of soil.
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Affiliation(s)
- Ming Liu
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China
- SouthWest University, Chongqing, 400715, China
| | - Rujun Xue
- Weishan City Branch of Yunnan Tobacco Company, Weishan, 672400, Yunnan, China
| | - Chengwei Yang
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China
| | - Ningbo Han
- Weishan City Branch of Yunnan Tobacco Company, Weishan, 672400, Yunnan, China
| | - Yanxia Hu
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China
| | - Kaiyuan Gu
- SouthWest University, Chongqing, 400715, China
| | - Jie Zhao
- SouthWest University, Chongqing, 400715, China
| | - Shuyue Guan
- SouthWest University, Chongqing, 400715, China
| | - Jiaen Su
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China.
| | - Yonglei Jiang
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
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2
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Tian S, Xia Y, Yu Z, Zhou H, Wu S, Zhang N, Yue X, Deng Y, Xia Y. Improvement and the relationship between chemical properties and microbial communities in secondary salinization of soils induced by rotating vegetables. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 921:171019. [PMID: 38382605 DOI: 10.1016/j.scitotenv.2024.171019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 02/05/2024] [Accepted: 02/14/2024] [Indexed: 02/23/2024]
Abstract
Choosing a good crop rotation plan helps maintain soil fertility and creates a healthy soil ecosystem. However, excessive fertilization and continuous cultivation of vegetables in a greenhouse results in secondary salinization of the soil. It remains unclear how crop rotation affects Yunnan's main place for vegetable growing in the greenhouse. Six plant cultivation patterns were chosen to determine how different rotation patterns affect the chemical properties and the soil microbial communities with secondary salinization, including lettuce monoculture, lettuce-large leaf mustard, lettuce-red leaf beet, lettuce-cabbage, lettuce-romaine lettuce, and lettuce-cilantro (DZ, A1, A2, A3, A4, and A5). The results showed that all treatments increased the proportion of nutrients available in the soil, and the effect of the A1 treatment was the most significant compared to the monoculture mode. The high-throughput sequencing findings revealed that distinct crop rotation patterns exerted varying effects on the microbial communities. Microbial community diversity was significantly lower in the monoculture than in the other treatments. The number of microbial operational taxonomic units OTUs was significantly higher in the crop rotation modes (P < 0.05), and the A1 treatment had larger numbers and diversity of bacterial and fungal OTUs (Shannon's and Simpson's) than other treatments (P < 0.05). Prominent bacterial and fungal communities were readily observable in the soils planted with rotational crops. Proteobacteria had the highest relative abundance of bacteria, whereas Ascomycota was the most abundant fungus. The principal coordinate analysis at the OTU level separated soil bacterial and fungal growth communities under the different treatments. Among the six treatments, The first two axes (PC1 and PC2) described 46.44 % and 42.42 % of the bacterial and fungal communities, respectively. Network-based analysis showed that Bacteroidota and Gemmatimonadota members of the genus Bacteroidota were positively correlated with Proteobacteria. Members of Ascomycota and Chytridiomycota exhibited positive relationships. These results extend the theoretical understanding of how various crop rotation patterns affect soil chemical properties, microbial community diversity, and metabolic functions. They reveal the beneficial effects of crop rotation patterns on enhanced soil quality. This study provides theoretical guidance for the future enhancement of sustainable agriculture and soil management planning.
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Affiliation(s)
- Shihan Tian
- College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China
| | - Yi Xia
- College of Tropical Crops, Yunnan Agricultural University, Pu'er 665099, China
| | - Zhong Yu
- College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China; Huazhi Biotechnology Co. Ltd, Changsha 410000, China
| | - Hongyin Zhou
- College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China
| | - Sirui Wu
- College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China
| | - Naiming Zhang
- College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China; Yunnan Engineering Research Center of Soil Fertility and Pollution Remediation,Kunming 650201, China
| | - Xianrong Yue
- Yunnan Engineering Research Center of Soil Fertility and Pollution Remediation,Kunming 650201, China
| | - Yishu Deng
- Yunnan Engineering Research Center of Soil Fertility and Pollution Remediation,Kunming 650201, China
| | - Yunsheng Xia
- College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China; Yunnan Engineering Research Center of Soil Fertility and Pollution Remediation,Kunming 650201, China.
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Gacura MD, Zak DR, Blackwood CB. From individual leaves to forest stands: importance of niche, distance decay, and stochasticity vary by ecosystem type and functional group for fungal community composition. FEMS Microbiol Ecol 2024; 100:fiae016. [PMID: 38373845 PMCID: PMC10913062 DOI: 10.1093/femsec/fiae016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/26/2024] [Accepted: 02/16/2024] [Indexed: 02/21/2024] Open
Abstract
Community assembly is influenced by environmental niche processes as well as stochastic processes that can be spatially dependent (e.g. dispersal limitation) or independent (e.g. priority effects). Here, we sampled senesced tree leaves as unit habitats to investigate fungal community assembly at two spatial scales: (i) small neighborhoods of overlapping leaves from differing tree species and (ii) forest stands of differing ecosystem types. Among forest stands, ecosystem type explained the most variation in community composition. Among adjacent leaves within stands, variability in fungal composition was surprisingly high. Leaf type was more important in stands with high soil fertility and dominated by differing tree mycorrhizal types (sugar maple vs. basswood or red oak), whereas distance decay was more important in oak-dominated forest stands with low soil fertility. Abundance of functional groups was explained by environmental factors, but predictors of taxonomic composition within differing functional groups were highly variable. These results suggest that fungal community assembly processes are clearest for functional group abundances and large spatial scales. Understanding fungal community assembly at smaller spatial scales will benefit from further study focusing on differences in drivers for different ecosystems and functional groups, as well as the importance of spatially independent factors such as priority effects.
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Affiliation(s)
- Matthew D Gacura
- Department of Biological Sciences, Kent State University, 800 E. Summit St., Kent, OH 44242, United States
- Biology Department, Gannon University, 109 University Square, Erie, PA 16541, United States
| | - Donald R Zak
- School for Environment and Sustainability, University of Michigan, 440 Church St., Ann Arbor, MI 48109, United States
| | - Christopher B Blackwood
- Department of Biological Sciences, Kent State University, 800 E. Summit St., Kent, OH 44242, United States
- Department of Plant, Soil, and Microbial Sciences and Department of Plant Biology, Michigan State University, 1066 Bogue St., East Lansing, MI 48842, United States
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Liu M, Xue R, Han N, Yang S, Wang D, Hu Y, Gu K, Su J. The impact of different preceding crops on soil nitrogen structure and nitrogen cycling in tobacco-planting soil. Sci Rep 2024; 14:1767. [PMID: 38243087 PMCID: PMC10799046 DOI: 10.1038/s41598-024-52285-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 01/16/2024] [Indexed: 01/21/2024] Open
Abstract
Soil nitrogen content, structure, and nitrogen cycling play a crucial role in tobacco growth quality, with different preceding crops having varying impacts on tobacco cultivation soil. This study conducted using field experiments, employed three treatments with different preceding crops, namely tobacco, barley, and rapeseed, to investigate the effects of different preceding crops on soil nitrogen structure and the expression levels of soil nitrogen cycling-related functional genes in tobacco cultivation soil. The results indicated that different preceding crops had varying effects on the content of different nitrogen forms in tobacco cultivation soil. Ammonium nitrogen and nitrate nitrogen were the two nitrogen forms which were most influenced by preceding crops, with the ammonium nitrogen content in soils following barley and rapeseed preceding crops increasing by 82.88% and 63.56%, respectively, compared to sole tobacco cultivation. The nitrate nitrogen content in tobacco cultivation soil was 26.97% higher following barley preceding crops and 24.39% higher following rapeseed preceding crops compared to sole tobacco cultivation. Simultaneously, different preceding crops also affected the expression levels of nitrogen cycling-related genes in tobacco cultivation soil. In the nitrification process, amoA was significantly impacted, with its expression reduced by 64.39% and 72.24% following barley and rapeseed preceding crops, respectively, compared to sole tobacco cultivation. In the denitrification process, except for the narG gene, all other genes were subjected to varying degrees of inhibition when preceded by barley and rapeseed crops. Correlation analysis between soil nitrogen structure and the expression levels of nitrogen cycling-related genes revealed that increased nitrogen levels suppressed the expression of Arch-amoA. Additionally, ammonium nitrogen strongly influenced the expression levels of most soil nitrogen cycling functional genes. In conclusion, preceding crops alter soil nitrogen structure, possibly due to changes in soil microorganisms, and different preceding crops modified the expression levels of nitrogen cycling-related genes in tobacco cultivation soil, consequently affecting the proportions of various nitrogen forms in the soil.
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Affiliation(s)
- Ming Liu
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China
| | - Rujun Xue
- Weishan City Branch of Yunnan Tobacco Company, Weishan, 672400, Yunnan, China
| | - Ningbo Han
- Weishan City Branch of Yunnan Tobacco Company, Weishan, 672400, Yunnan, China
| | - Shanqin Yang
- Weishan City Branch of Yunnan Tobacco Company, Weishan, 672400, Yunnan, China
| | - Dexun Wang
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China
| | - Yanxia Hu
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China
| | - Kaiyuan Gu
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China
| | - Jiaen Su
- Dali Prefecture Branch of Yunnan Tobacco Company, Dali, 671000, Yunnan, China.
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Zhao W, Wen M, Zhao C, Zhang S, Dou R, Liang X, Zhang X, Liu Z, Jiang Z. Warm Temperature Increments Strengthen the Crosstalk between Roots and Soil in the Rhizosphere of Soybean Seedlings. PLANTS (BASEL, SWITZERLAND) 2023; 12:4135. [PMID: 38140462 PMCID: PMC10747358 DOI: 10.3390/plants12244135] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/18/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023]
Abstract
The plant rhizosphere underlies the crosstalk between plant and soil and has a crucial role in plant growth and development under various environments. We examined the effect of temperature rise on the rhizosphere environment of soybean roots to clarify the rhizosphere crosstalk between roots and soil in response to warm temperature rises in a global warming background. The in situ results of root enzyme activity revealed that soybean roots secrete β-glucosidase, and enzyme spectrum imaging demonstrated different enzymatic activities under different temperature environments. The soil enzyme kinetics results showed that soil enzymatic activity increased with increasing temperature, and soybean rhizosphere soil enzymatic activity was higher than that of non-rhizosphere soil. Rhizosphere soil and non-rhizosphere soil showed that the dominant bacterial phylum in soybean rhizosphere soil was Acidobacteria, and the dominant bacterial genus was JG30-KF-AS9. Compared with non-rhizosphere soil, rhizosphere soil was more nutrient-rich, and root secretions provided abundant carbon sources and other nutrients for soil microorganisms in the rhizosphere. Rhizosphere microorganisms affect plant growth by influencing the decomposition of soil organic carbon. The organic carbon content of rhizosphere soil was higher than that of non-rhizosphere soil under high temperatures.
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Affiliation(s)
- Wanying Zhao
- Key Laboratory of Soybean Biology in Chinese Ministry of Education, Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry, College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (M.W.); (C.Z.); (S.Z.); (R.D.); (X.L.)
| | - Mingxing Wen
- Key Laboratory of Soybean Biology in Chinese Ministry of Education, Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry, College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (M.W.); (C.Z.); (S.Z.); (R.D.); (X.L.)
| | - Caitong Zhao
- Key Laboratory of Soybean Biology in Chinese Ministry of Education, Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry, College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (M.W.); (C.Z.); (S.Z.); (R.D.); (X.L.)
| | - Shurui Zhang
- Key Laboratory of Soybean Biology in Chinese Ministry of Education, Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry, College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (M.W.); (C.Z.); (S.Z.); (R.D.); (X.L.)
| | - Runa Dou
- Key Laboratory of Soybean Biology in Chinese Ministry of Education, Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry, College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (M.W.); (C.Z.); (S.Z.); (R.D.); (X.L.)
| | - Xuefeng Liang
- Key Laboratory of Soybean Biology in Chinese Ministry of Education, Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry, College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (M.W.); (C.Z.); (S.Z.); (R.D.); (X.L.)
| | - Xianfeng Zhang
- The Training Center of the Undergraduate, Northeast Agricultural University, Harbin 150030, China;
| | - Zhihua Liu
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Zhenfeng Jiang
- Key Laboratory of Soybean Biology in Chinese Ministry of Education, Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry, College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (M.W.); (C.Z.); (S.Z.); (R.D.); (X.L.)
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6
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Andargie YE, Lee G, Jeong M, Tagele SB, Shin JH. Deciphering key factors in pathogen-suppressive microbiome assembly in the rhizosphere. FRONTIERS IN PLANT SCIENCE 2023; 14:1301698. [PMID: 38116158 PMCID: PMC10728675 DOI: 10.3389/fpls.2023.1301698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 11/20/2023] [Indexed: 12/21/2023]
Abstract
In a plant-microbe symbiosis, the host plant plays a key role in promoting the association of beneficial microbes and maintaining microbiome homeostasis through microbe-associated molecular patterns (MAMPs). The associated microbes provide an additional layer of protection for plant immunity and help in nutrient acquisition. Despite identical MAMPs in pathogens and commensals, the plant distinguishes between them and promotes the enrichment of beneficial ones while defending against the pathogens. The rhizosphere is a narrow zone of soil surrounding living plant roots. Hence, various biotic and abiotic factors are involved in shaping the rhizosphere microbiome responsible for pathogen suppression. Efforts have been devoted to modifying the composition and structure of the rhizosphere microbiome. Nevertheless, systemic manipulation of the rhizosphere microbiome has been challenging, and predicting the resultant microbiome structure after an introduced change is difficult. This is due to the involvement of various factors that determine microbiome assembly and result in an increased complexity of microbial networks. Thus, a comprehensive analysis of critical factors that influence microbiome assembly in the rhizosphere will enable scientists to design intervention techniques to reshape the rhizosphere microbiome structure and functions systematically. In this review, we give highlights on fundamental concepts in soil suppressiveness and concisely explore studies on how plants monitor microbiome assembly and homeostasis. We then emphasize key factors that govern pathogen-suppressive microbiome assembly. We discuss how pathogen infection enhances plant immunity by employing a cry-for-help strategy and examine how domestication wipes out defensive genes in plants experiencing domestication syndrome. Additionally, we provide insights into how nutrient availability and pH determine pathogen suppression in the rhizosphere. We finally highlight up-to-date endeavors in rhizosphere microbiome manipulation to gain valuable insights into potential strategies by which microbiome structure could be reshaped to promote pathogen-suppressive soil development.
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Affiliation(s)
- Yohannes Ebabuye Andargie
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
- Department of Plant Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - GyuDae Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Minsoo Jeong
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Setu Bazie Tagele
- Department of Microbiology and Plant Pathology, University of California, Riverside, Riverside, CA, United States
| | - Jae-Ho Shin
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
- Department of Integrative Biology, Kyungpook National University, Daegu, Republic of Korea
- Next Generation Sequencing (NGS) Core Facility, Kyungpook National University, Daegu, Republic of Korea
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7
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Chen S, Wang Y, Gao J, Chen X, Qi J, Peng Z, Chen B, Pan H, Liang C, Liu J, Wang Y, Wei G, Jiao S. Agricultural tillage practice and rhizosphere selection interactively drive the improvement of soybean plant biomass. PLANT, CELL & ENVIRONMENT 2023; 46:3542-3557. [PMID: 37564021 DOI: 10.1111/pce.14694] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 07/30/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Abstract
Rhizosphere microbes play key roles in plant growth and productivity in agricultural systems. One of the critical issues is revealing the interaction of agricultural management (M) and rhizosphere selection effects (R) on soil microbial communities, root exudates and plant productivity. Through a field management experiment, we found that bacteria were more sensitive to the M × R interaction effect than fungi, and the positive effect of rhizosphere bacterial diversity on plant biomass existed in the bacterial three two-tillage system. In addition, inoculation experiments demonstrated that the nitrogen cycle-related isolate Stenotrophomonas could promote plant growth and alter the activities of extracellular enzymes N-acetyl- d-glucosaminidase and leucine aminopeptidase in rhizosphere soil. Microbe-metabolites network analysis revealed that hubnodes Burkholderia-Caballeronia-Paraburkholderia and Pseudomonas were recruited by specific root metabolites under the M × R interaction effect, and the inoculation of 10 rhizosphere-matched isolates further proved that these microbes could promote the growth of soybean seedlings. Kyoto Encyclopaedia of Genes and Genomes pathway analysis indicated that the growth-promoting mechanisms of these beneficial genera were closely related to metabolic pathways such as amino acid metabolism, melatonin biosynthesis, aerobactin biosynthesis and so on. This study provides field observation and experimental evidence to reveal the close relationship between beneficial rhizosphere microbes and plant productivity under the M × R interaction effect.
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Affiliation(s)
- Shi Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Yang Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Jiamin Gao
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Xingyu Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Jiejun Qi
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Ziheng Peng
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Beibei Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Haibo Pan
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Chunling Liang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Jiai Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Yihe Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Gehong Wei
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Shuo Jiao
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
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Fang J, Wei S, Gao Y, Zhang X, Cheng Y, Wang J, Ma J, Shi G, Bai L, Xie R, Zhao X, Ren Y, Lu Z. Character variation of root space microbial community composition in the response of drought-tolerant spring wheat to drought stress. Front Microbiol 2023; 14:1235708. [PMID: 37779714 PMCID: PMC10541208 DOI: 10.3389/fmicb.2023.1235708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 08/31/2023] [Indexed: 10/03/2023] Open
Abstract
Drought is the most prevalent environmental stress in crop production, posing a significant danger to food security. Microorganisms in the crop root zone affect crop growth and development, enhance effective nutrient use, and resist adversity hazards. To analyze the changes and functional differences of root space microbial (endosphere-rhizosphere-bulk soil) communities in spring wheat under drought stress. In this study, the root, rhizosphere, and bulk soil of the drought-tolerant group (DTG, three varieties) and drought-sensitive group (DSG, three varieties) were collected. The control (CK, 25-28%), moderate drought (MD, 15-18%), and severe drought (SD, 9-12%) were analyzed by high-throughput sequencing and bioinformatics. The results showed significant differences in the diversity of Bacteria and Fungi in the root space of spring wheat under drought stress (P < 0.05), with the drought-tolerant group exhibiting higher microbial diversity. The microbial community change in spring wheat root space was mainly determined by the niche differentiation of endosphere, rhizosphere, and bulk soil and declined from endosphere to bulk soil due to drought. The antagonism between microbial and root-space species increased, and the community's complexity and stability deteriorated. Enriching drought-resistant preference groups like Actinobaciota, Variovorax, Streptomyces, and Conocybe altered the structure and function of the microbial community in the root space of spring wheat. Spring wheat's root space Bacteria and Fungi have different strategies to respond to drought.
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Affiliation(s)
- Jing Fang
- School of Life Science, Inner Mongolia University, Hohhot, China
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
| | - Shuli Wei
- School of Life Science, Inner Mongolia University, Hohhot, China
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
- Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China
| | - Yanrong Gao
- School of Life Science, Inner Mongolia University, Hohhot, China
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
| | - Xiangqian Zhang
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
- Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China
- College of Agronomy, Inner Mongolia Agricultural University, Hohhot, China
| | - Yuchen Cheng
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
- Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China
| | - Jianguo Wang
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
- Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China
| | - Jie Ma
- School of Life Science, Inner Mongolia University, Hohhot, China
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
| | - Gongfu Shi
- School of Life Science, Inner Mongolia University, Hohhot, China
| | - Lanfang Bai
- College of Agronomy, Inner Mongolia Agricultural University, Hohhot, China
| | - Rui Xie
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
- Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China
| | - Xiaoqing Zhao
- School of Life Science, Inner Mongolia University, Hohhot, China
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
- Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China
| | - Yongfeng Ren
- School of Life Science, Inner Mongolia University, Hohhot, China
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
- Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China
| | - Zhanyuan Lu
- School of Life Science, Inner Mongolia University, Hohhot, China
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
- Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China
- Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China
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9
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Sun L, Wang S, Narsing Rao MP, Shi Y, Lian ZH, Jin PJ, Wang W, Li YM, Wang KK, Banerjee A, Cui XY, Wei D. The shift of soil microbial community induced by cropping sequence affect soil properties and crop yield. Front Microbiol 2023; 14:1095688. [PMID: 36910216 PMCID: PMC10004276 DOI: 10.3389/fmicb.2023.1095688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/30/2023] [Indexed: 02/19/2023] Open
Abstract
Rational cropping maintains high soil fertility and a healthy ecosystem. Soil microorganism is the controller of soil fertility. Meanwhile, soil microbial communities also respond to different cropping patterns. The mechanisms by which biotic and abiotic factors were affected by different cropping sequences remain unclear in the major grain-producing regions of northeastern China. To evaluate the effects of different cropping sequences under conventional fertilization practices on soil properties, microbial communities, and crop yield, six types of plant cropping systems were performed, including soybean monoculture, wheat-soybean rotation, wheat-maize-soybean rotation, soybean-maize-maize rotation, maize-soybean-soybean rotation and maize monoculture. Our results showed that compared with the single cropping system, soybean and maize crop rotation in different combinations or sequences can increase soil total organic carbon and nutrients, and promote soybean and maize yield, especially using soybean-maize-maize and maize-soybean-soybean planting system. The 16S rRNA and internal transcribed spacer (ITS) amplicon sequencing showed that different cropping systems had different effects on bacterial and fungal communities. The bacterial and fungal communities of soybean monoculture were less diverse when compared to the other crop rotation planting system. Among the different cropping sequences, the number of observed bacterial species was greater in soybean-maize-maize planting setup and fungal species in maize-soybean-soybean planting setup. Some dominant and functional bacterial and fungal taxa in the rotation soils were observed. Network-based analysis suggests that bacterial phyla Acidobacteria and Actinobacteria while fungal phylum Ascomycota showed a positive correlation with other microbial communities. The phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt) result showed the presence of various metabolic pathways. Besides, the soybean-maize-maize significantly increased the proportion of some beneficial microorganisms in the soil and reduced the soil-borne animal and plant pathogens. These results warrant further investigation into the mechanisms driving responses of beneficial microbial communities and their capacity on improving soil fertility during legume cropping. The present study extends our understanding of how different crop rotations effect soil parameters, microbial diversity, and metabolic functions, and reveals the importance of crop rotation sequences. These findings could be used to guide decision-making from the microbial perspective for annual crop planting and soil management approaches.
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Affiliation(s)
- Lei Sun
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, China.,Heilongjiang Academy of Black Soil Conservation and Utilization, Harbin, China
| | - Shuang Wang
- Heilongjiang Academy of Black Soil Conservation and Utilization, Harbin, China
| | | | - Yu Shi
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, China
| | - Zheng-Han Lian
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Pin-Jiao Jin
- Heilongjiang Academy of Black Soil Conservation and Utilization, Harbin, China
| | - Wei Wang
- Heilongjiang Academy of Black Soil Conservation and Utilization, Harbin, China
| | - Yu-Mei Li
- Heilongjiang Academy of Black Soil Conservation and Utilization, Harbin, China
| | - Kang-Kang Wang
- Heilongjiang Academy of Black Soil Conservation and Utilization, Harbin, China
| | - Aparna Banerjee
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM),Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca, Chile
| | - Xiao-Yang Cui
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, China
| | - Dan Wei
- Institute of Plant Nutrition and Resources, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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10
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Bian X, Yang X, Zhang K, Zhai Y, Li Q, Zhang L, Sun X. Potential of Medicago sativa and Perilla frutescens for overcoming the soil sickness caused by ginseng cultivation. Front Microbiol 2023; 14:1134331. [PMID: 37089541 PMCID: PMC10113677 DOI: 10.3389/fmicb.2023.1134331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/17/2023] [Indexed: 04/25/2023] Open
Abstract
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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Affiliation(s)
- Xingbo Bian
- College of Pharmacy, Jilin Medical University, Jilin, China
| | - Xiaohang Yang
- College of Pharmacy, Jilin Medical University, Jilin, China
| | - Kexin Zhang
- College of Pharmacy, Jilin Medical University, Jilin, China
| | - Yiru Zhai
- College of Pharmacy, Jilin Medical University, Jilin, China
| | - Qiong Li
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Lianxue Zhang
- College of Chinese Medicinal Materials, Jilin Agriculture University, Changchun, China
| | - Xin Sun
- College of Pharmacy, Jilin Medical University, Jilin, China
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11
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Bian X, Yang X, Li Q, Sun X. Effects of planting of two common crops, Allium fistulosum and Brassica napus, on soil properties and microbial communities of ginseng cultivation in northeast China. BMC Microbiol 2022; 22:182. [PMID: 35869447 PMCID: PMC9306067 DOI: 10.1186/s12866-022-02592-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 07/05/2022] [Indexed: 02/06/2023] Open
Abstract
Background Long-term cultivation of ginseng can cause severe crop disorders and soil sickness. Crop rotation is an effective agricultural management measure to improve soil sustainability and decrease pathogens. However, the suitable ginseng rotation system and the changes in soil microbial community and soil characteristics under the rotation system need to be further explored. Methods To explore suitable ginseng crop rotation systems and improve soil utilization, Allium fistulosum and Brassica napus were planted on ginseng cultivation soil for one year. The effects of the two crops on the chemical properties and enzyme activities of the ginseng cultivation soil were evaluated by chemical analysis. In addition, amplicon sequencing targeting 16 s rDNA genes of bacteria and ITS of fungi has been used to characterize the functional and compositional diversity of microbial communities. Results The results elucidated that the levels of available phosphorus (AP) and available potassium (AK) in the soil increased significantly after one year of cultivation for both crops and Allium fistulosum cultivation may also have reduced soil salinity. In addition, the effects of the two crops on the activities of key soil enzymes were different. Catalase (CAT), urease (URE), and acid phosphatase (A-PHO) activities were significantly reduced and sucrase (SUC), and laccase (LAC) activities were significantly increased after Allium fistulosum planting. While A-PHO activity was significantly increased and LAC activity was significantly decreased after Brassica napus planting. Allium fistulosum significantly reduced the abundance of soil fungal communities. The cultivation of Allium fistulosum and Brassica napus significantly altered the composition of soil bacterial and fungal communities, where changes in the abundance of dominant microorganisms, such as Ascomycota, and Mortierellomycota, etc., were closely related to soil chemistry and enzyme activity. Moreover, both significantly reduced the abundance of the pathogenic fungus Ilyonectria. Conclusions Our study clarified the effects of Allium fistulosum and Brassica napus on the microbial community and physicochemical properties of ginseng cultivated soil and provides a basis for the sustainable application of ginseng cultivation soil and the development of ginseng crop rotation systems. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02592-0.
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12
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Wolińska A, Podlewski J, Słomczewski A, Grządziel J, Gałązka A, Kuźniar A. Fungal Indicators of Sensitivity and Resistance to Long-Term Maize Monoculture: A Culture-Independent Approach. Front Microbiol 2022; 12:799378. [PMID: 35046921 PMCID: PMC8761758 DOI: 10.3389/fmicb.2021.799378] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/07/2021] [Indexed: 01/04/2023] Open
Abstract
Although fungi are regarded as very important components of soils, the knowledge of their community in agricultural (monocultural) soils is still limited. This indicates that soil fungal communities are investigated less intensively than bacteria. Therefore, the main goal of this paper was to evaluate the fungal mycobiome structure in monoculture soils in a culture-independent approach. Firstly, the study was conducted to identify the core mycobiome composition and its variability at different stages of the maize growing season (spring, summer, and autumn). Secondly, we identified and recommended fungal indicators of both sensitivity and resistance to long-term maize monoculture. Two neighboring fields from the Potulicka Foundation area were selected for the study: K20 sown with a Gorzow mixture (intercropping mixture) to improve soil quality after a maize monoculture in 2020 and K21, where long-term (over 30 years) monoculture cultivation was continued. The basic chemical features [acidity, redox potential, total organic carbon (TOC), and moisture] of soils were determined, fungal genetic diversity was assessed by ITS next generation sequencing (NGS) analyses, and biodiversity indices were calculated. The results of the NGS technique facilitated recognition and classification of the fungal mycobiome to the taxonomic genus level and changes in the fungal structure in the three periods (spring, summer, and autumn) were assessed. It was evidenced that the mycobiome composition was dependent on both the seasons and the agricultural practices. It was also found that even a 1-year break in the monoculture in favor of an intercropping mixture improved soil properties thus contributing to higher biodiversity. Mortierella was recommended as a potential indicator of sensitivity to long-term maize cultivation, whereas Solicoccozyma and Exophiala were proposed as indicators of resistance to long-term maize cultivation. We proved that the precision farming principles applied on the Potulicka Foundation farm had a very positive effect on fungal biodiversity, which was high even in the long-term maize monoculture field. Therefore, the monoculture cultivation carried out in this way does not induce biological degradation of monoculture soils but preserves their good biological quality.
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Affiliation(s)
- Agnieszka Wolińska
- Department of Biology and Biotechnology of Microorganisms, Institute of Biological Sciences, The John Paul II Catholic University of Lublin, Lublin, Poland
| | | | | | - Jarosław Grządziel
- Department of Agriculture Microbiology, Institute of Soil Science and Plant Cultivation in Pulawy, Puławy, Poland
| | - Anna Gałązka
- Department of Agriculture Microbiology, Institute of Soil Science and Plant Cultivation in Pulawy, Puławy, Poland
| | - Agnieszka Kuźniar
- Department of Biology and Biotechnology of Microorganisms, Institute of Biological Sciences, The John Paul II Catholic University of Lublin, Lublin, Poland
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Shen MC, Zhang YZ, Bo GD, Yang B, Wang P, Ding ZY, Wang ZB, Yang JM, Zhang P, Yuan XL. Microbial Responses to the Reduction of Chemical Fertilizers in the Rhizosphere Soil of Flue-Cured Tobacco. Front Bioeng Biotechnol 2022; 9:812316. [PMID: 35087808 PMCID: PMC8787768 DOI: 10.3389/fbioe.2021.812316] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/22/2021] [Indexed: 12/23/2022] Open
Abstract
The overuse of chemical fertilizers has resulted in the degradation of the physicochemical properties and negative changes in the microbial profiles of agricultural soil. These changes have disequilibrated the balance in agricultural ecology, which has resulted in overloaded land with low fertility and planting obstacles. To protect the agricultural soil from the effects of unsustainable fertilization strategies, experiments of the reduction of nitrogen fertilization at 10, 20, and 30% were implemented. In this study, the bacterial responses to the reduction of nitrogen fertilizer were investigated. The bacterial communities of the fertilizer-reducing treatments (D10F, D20F, and D30F) were different from those of the control group (CK). The alpha diversity was significantly increased in D20F compared to that of the CK. The analysis of beta diversity revealed variation of the bacterial communities between fertilizer-reducing treatments and CK, when the clusters of D10F, D20F, and D30F were separated. Chemical fertilizers played dominant roles in changing the bacterial community of D20F. Meanwhile, pH, soil organic matter, and six enzymes (soil sucrase, catalase, polyphenol oxidase, urease, acid phosphatase, and nitrite reductase) were responsible for the variation of the bacterial communities in fertilizer-reducing treatments. Moreover, four of the top 20 genera (unidentified JG30-KF-AS9, JG30-KF-CM45, Streptomyces, and Elsterales) were considered as key bacteria, which contributed to the variation of bacterial communities between fertilizer-reducing treatments and CK. These findings provide a theoretical basis for a fertilizer-reducing strategy in sustainable agriculture, and potentially contribute to the utilization of agricultural resources through screening plant beneficial bacteria from native low-fertility soil.
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Affiliation(s)
- Min-Chong Shen
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Yu-Zhen Zhang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Guo-Dong Bo
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Bin Yang
- Shandong Qingdao Tobacco Co., Ltd., Qingdao, China
| | - Peng Wang
- Shandong Qingdao Tobacco Co., Ltd., Qingdao, China
| | | | - Zhao-Bao Wang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Jian-Ming Yang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Peng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Xiao-Long Yuan
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
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14
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Behnke GD, Kim N, Zabaloy MC, Riggins CW, Rodriguez-Zas S, Villamil MB. Soil Microbial Indicators within Rotations and Tillage Systems. Microorganisms 2021; 9:1244. [PMID: 34201118 PMCID: PMC8228827 DOI: 10.3390/microorganisms9061244] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/01/2021] [Accepted: 06/06/2021] [Indexed: 01/04/2023] Open
Abstract
Recent advancements in agricultural metagenomics allow for characterizing microbial indicators of soil health brought on by changes in management decisions, which ultimately affect the soil environment. Field-scale studies investigating the microbial taxa from agricultural experiments are sparse, with none investigating the long-term effect of crop rotation and tillage on microbial indicator species. Therefore, our goal was to determine the effect of rotations (continuous corn, CCC; continuous soybean, SSS; and each phase of a corn-soybean rotation, Cs and Sc) and tillage (no-till, NT; and chisel tillage, T) on the soil microbial community composition following 20 years of management. We found that crop rotation and tillage influence the soil environment by altering key soil properties, such as pH and soil organic matter (SOM). Monoculture corn lowered pH compared to SSS (5.9 vs. 6.9, respectively) but increased SOM (5.4% vs. 4.6%, respectively). Bacterial indicator microbes were categorized into two groups: SOM dependent and acidophile vs. N adverse and neutrophile. Fungi preferred the CCC rotation, characterized by low pH. Archaeal indicators were mainly ammonia oxidizers with species occupying niches at contrasting pHs. Numerous indicator microbes are involved with N cycling due to the fertilizer-rich environment, prone to aquatic or gaseous losses.
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Affiliation(s)
- Gevan D. Behnke
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA; (G.D.B.); (N.K.); (C.W.R.)
| | - Nakian Kim
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA; (G.D.B.); (N.K.); (C.W.R.)
| | - Maria C. Zabaloy
- Centro de Recursos Naturales Renovables de la Zona Semiárida (CERZOS, UNS-CONICET), Departamento de Agronomía, Universidad Nacional del Sur, Bahia Blanca B8000, Argentina;
| | - Chance W. Riggins
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA; (G.D.B.); (N.K.); (C.W.R.)
| | | | - Maria B. Villamil
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA; (G.D.B.); (N.K.); (C.W.R.)
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