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Effect of rhizosphere on soil microbial community and pyrene biodegradation

SU Yuhong, YANG Xueyun, CHIOU Cary

《环境科学与工程前沿（英文）》 2008年 第2卷 第4期   页码 468-474 doi: 10.1007/s11783-008-0078-9

摘要： To access the influence of a vegetation on soil microorganisms toward organic pollutant biogegration, this study examined the rhizospheric effects of four plant species (sudan grass, white clover, alfalfa, and fescue) on the soil microbial community and pyrene (PYR) biodegradation. The results indicated that the spiked PYR levels in soils decreased substantially compared to the control soil without planting. With equal planted densities, the efficiencies of PYR degradation in rhizosphere with sudan grass, white clover, alfalfa and fescue were 34.0%, 28.4%, 27.7%, and 9.9%, respectively. However, on the basis of equal root biomass the efficiencies were in order of white clover >> alfalfa > sudan > fescue. The increased PYR biodegradation was attributed to the enhanced bacterial population and activity induced by plant roots in the rhizosphere. Soil microbial species and biomasses were elucidated in terms of microbial phospholipid ester-linked fatty acid (PLFA) biomarkers. The principal component analysis (PCA) revealed significant changes in PLFA pattern in planted and non-planted soils spiked with PYR. Total PLFAs in planted soils were all higher than those in non-planted soils. PLFA assemblages indicated that bacteria were the primary PYR degrading microorganisms, and that Gram-positive bacteria exhibited higher tolerance to PYR than Gram-negative bacteria did.
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Changes in bulk soil affect the disease-suppressive rhizosphere microbiome against Fusarium wilt disease

Lin FU, Wu XIONG, Francisco DINI-ANDREOTE, Beibei WANG, Chengyuan TAO, Yunze RUAN, Zongzhuan SHEN, Rong LI, Qirong SHEN

《农业科学与工程前沿（英文）》 2020年 第7卷 第3期   页码 307-316 doi: 10.15302/J-FASE-2020328

摘要：

Harnessing disease-suppressive microbiomes constitutes a promising strategy for optimizing plant growth. However, relatively little information is available about the relationship between bulk and rhizosphere soil microbiomes. Here, the assembly of banana bulk soil and rhizosphere microbiomes was investigated in a monoculture system consisting of bio-organic (BIO) and organic management practices. Applying BIO practice in newly reclaimed fields resulted in a high-efficiency biocontrol rate, thus providing a promising strategy for pre-control of Fusarium wilt disease. The soil microbiota was further characterized by MiSeq sequencing and quantitative PCR. The results indicate that disease suppression was mediated by the structure of a suppressive rhizosphere microbiome with respect to distinct community composition, diversity and abundance. Overall microbiome suppressiveness was primarily related to a particular set of enriched bacterial taxa affiliated with s, , , , and . Finally, structural equation modeling was used to show that the changes in bulk soil bacterial community determined its induced rhizosphere bacterial community, which serves as an important and direct factor in restraining the pathogen. Collectively, this study provides an integrative approach to disentangle the biological basis of disease-suppressive microbiomes in the context of agricultural practice and soil management.

关键词： agricultural practice     bulk soil     disease suppression     rhizosphere ecology    

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Microbial community and functional genes in the rhizosphere of alfalfa in crude oil-contaminated soil

Yi ZHONG, Jian WANG, Yizhi SONG, Yuting LIANG, Guanghe LI

《环境科学与工程前沿（英文）》 2012年 第6卷 第6期   页码 797-805 doi: 10.1007/s11783-012-0405-z

摘要： A rhizobox system constructed with crude oil-contaminated soil was vegetated with alfalfa ( L.) to evaluate the rhizosphere effects on the soil microbial population and functional structure, and to explore the potential mechanisms by which plants enhance the removal of crude oil in soil. During the 80-day experiment, 31.6% of oil was removed from the adjacent rhizosphere (AR); this value was 27% and 53% higher than the percentage of oil removed from the far rhizosphere (FR) and from the non-rhizosphere (NR), respectively. The populations of heterotrophic bacteria and hydrocarbon-degrading bacteria were higher in the AR and FR than in the NR. However, the removal rate of crude oil was positively correlated with the proportion of hydrocarbon-degrading bacteria in the rhizosphere. In total, 796, 731, and 379 functional genes were detected by microarray in the AR, FR, and NR, respectively. Higher proportions of functional genes related to carbon degradation and organic remediation, were found in rhizosphere soil compared with NR soil, suggesting that the rhizosphere selectively increased the abundance of these specific functional genes. The increase in water-holding capacity and decrease in pH as well as salinity of the soil all followed the order of AR>FR>NR. Canonical component analysis showed that salinity was the most important environmental factor influencing the microbial functional structure in the rhizosphere and that salinity was negatively correlated with the abundance of carbon and organic degradation genes.

关键词： crude oil-contaminated soil     phytoremediation     rhizosphere effects     rhizobox     functional genes    

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The diazotrophic community in oat rhizosphere: effects of legume intercropping and crop growth stage

Yadong YANG, Xiaomin FENG, Yuegao HU, Zhaohai ZENG

《农业科学与工程前沿（英文）》 2019年 第6卷 第2期   页码 162-171 doi: 10.15302/J-FASE-2018212

摘要：

In this study, the abundance, diversity and structure of the diazotrophic community in oat rhizosphere soil in three cropping systems and at two oat growth stages were investigated using real-time PCR and Illumina MiSeq sequencing. The gene abundance in oat-soybean intercropping (OSO) and oat-mungbean intercropping (OMO) was significantly greater than that in sole oat (O), but the gene abundance significantly decreased at the later stage in all the treatments. Alpha diversity indices in OSO and OMO were higher at the heading stage, but lower at the maturity stage than that in O. and were the dominant genera identified in all samples, with an average proportion of 35.8% and 12.4%, respectively. The proportion of dominant genera showed significant differences and varied with cropping system and growth stage. Principal component analysis showed that growth stage had a stronger effect than intercropping on the diazotrophic community structure. However, Mantel test and redundancy analysis showed there was no environmental factor significantly correlated to the diazotrophic community structure. Our results demonstrate that intercropping had a weaker effect than growth stage on the abundance, diversity and structure of the diazotrophic community in oat rhizosphere soil.

关键词： community composition     Illumina MiSeq sequencing     nifH gene     oat-legume intercropping     rhizosphere soil    

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OPPORTUNITIES AND APPROACHES FOR MANIPULATING SOIL-PLANT MICROBIOMES FOR EFFECTIVE CROP NITROGEN USE

《农业科学与工程前沿（英文）》 2022年 第9卷 第3期   页码 333-343 doi: 10.15302/J-FASE-2022450

摘要：

● Matching nitrification inhibitors with soil properties and nitrifiers is vital to achieve a higher NUE.

关键词： nitrogen     microbiome     NUE     rhizosphere     phyllosphere     soil food web    

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A review of research progress on continuous cropping obstacles REVIEW

《农业科学与工程前沿（英文）》 2024年 第11卷 第2期   页码 253-270 doi: 10.15302/J-FASE-2024543

摘要：

Due to the increasing global population and limited land resources, continuous cropping has become common. However, after a few years of continuous cropping, obstacles often arise that cause soil degeneration, decreased crop yield and quality, and increased disease incidence, resulting in significant economic losses. It is essential to understand the causes and mitigation mechanisms of continuous cropping obstacles (CCOs) and then develop appropriate methods to overcome them. This review systematically summarizes the causes and mitigation measures of soil degradation in continuous cropping through a meta-analysis. It was concluded that not all continuous cropping systems are prone to CCOs. Therefore, it is necessary to grasp the principles governing the occurrence of diseases caused by soilborne pathogens in different cropping systems, consider plant–soil-organisms interactions as a system, scientifically regulate the physical and chemical properties of soils from a systems perspective, and then regulate the structure of microbial food webs in the soil to achieve a reduction in diseases caused by soilborne pathogens and increase crop yield ultimately. This review provides reference data and guidance for addressing this fundamental problem.

关键词： Continuous cropping obstacles     rhizosphere regulation     soil microecological environment    

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Rhizosphere immunity: targeting the underground for sustainable plant health management

Zhong WEI, Ville-Petri FRIMAN, Thomas POMMIER, Stefan GEISEN, Alexandre JOUSSET, Qirong SHEN

《农业科学与工程前沿（英文）》 2020年 第7卷 第3期   页码 317-328 doi: 10.15302/J-FASE-2020346

摘要：

Managing plant health is a great challenge for modern food production and is further complicated by the lack of common ground between the many disciplines involved in disease control. Here we present the concept of rhizosphere immunity, in which plant health is considered as an ecosystem level property emerging from networks of interactions between plants, microbiota and the surrounding soil matrix. These interactions can potentially extend the innate plant immune system to a point where the rhizosphere immunity can fulfil all four core functions of a full immune system: pathogen prevention, recognition, response and homeostasis. We suggest that considering plant health from a meta-organism perspective will help in developing multidisciplinary pathogen management strategies that focus on steering the whole plant-microbe-soil networks instead of individual components. This might be achieved by bringing together the latest discoveries in phytopathology, microbiome research, soil science and agronomy to pave the way toward more sustainable and productive agriculture.

关键词： rhizosphere     soil microbiome     plant immunity     microbial ecology     plant health     soilborne pathogens    

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Green intelligent fertilizers—A novel approach for aligning sustainable agriculture with green development REVIEW

《农业科学与工程前沿（英文）》 2024年 第11卷 第1期   页码 186-196 doi: 10.15302/J-FASE-2024547

摘要：

This review addresses the growing disparity between the current state of fertilizer production in China and the evolving demands of green agriculture in the 21st century. It explores major advances in fertilizers, proposes the concept of green intelligent fertilizers and develops new strategies aligned with the principles of green development in fertilizer industry and agriculture. Green intelligent fertilizers may be designed to maximize the synergistic effects among plants, soils, microorganisms, nutrient sources and the environment. This concept emphasizes the integration of industry and agriculture toward green development for entire industry chain, using an interdisciplinary approach to drive the green transformation of fertilizer industry, and promote green and sustainable development of agriculture. By bridging the gap between the current state of fertilizer industry and a growing need for environmentally responsible agricultural practices, this review highlights a path toward harmonizing fertilizer production with the imperatives of green agriculture.

关键词： Root-nutrient feedback     green development     intelligent fertilizers     new fertilizer     plant−soil−fertilizer interaction     rhizosphere engineering    

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Sulfur mediated heavy metal biogeochemical cycles in coastal wetlands: From sediments, rhizosphere to

《环境科学与工程前沿（英文）》 2022年 第16卷 第8期 doi: 10.1007/s11783-022-1523-x

摘要：

• In sediments, the transformation of sulfides may lead to the release of heavy metals.

关键词： Coastal wetland     Heavy metal     Sulfur     Biogeochemical cycle    

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Improving the efficiency and effectiveness of global phosphorus use: focus on root and rhizosphere levels

null

《农业科学与工程前沿（英文）》 2019年 第6卷 第4期   页码 357-365 doi: 10.15302/J-FASE-2019275

摘要：

Phosphorus (P) is essential for life and for efficient crop production, but global P use with limited recycling is inefficient in several sectors, including agronomy. Unfortunately, plant physiologists, agronomists, farmers and end users employ different measures for P use efficiency (PUE), which often masks their values at different scales. The term P use effectiveness, which also considers energetic and sustainability measures in addition to P balances, is also a valuable concept. Major physiological and genetic factors for plant P uptake and utilization have been identified, but there has been limited success in genetically improving PUE of modern crop cultivars. In maize, studies on root architectural and morphological traits appear promising. Rhizosphere processes assist in mobilizing and capturing sparingly soluble phosphate from rock phosphate. Combinations of phosphate-solubilizing microorganisms with ammonium-based nitrogen fertilizer, as well as strategies of fertilizer placement near the roots of target crops, can moderately enhance PUE. The desired concentration of P in the products differs, depending on the final use of the crop products as feed, food or for energy conversion, which should be considered during crop production.

关键词： acquisition efficiency     plant growth promoting rhizobacteria     phosphate     use efficiency     utilization efficiency    

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Coupling of the chemical niche and microbiome in the rhizosphere: implications from watermelon grafting

Yang SONG, Chen ZHU, Waseem RAZA, Dongsheng WANG, Qiwei HUANG, Shiwei GUO, Ning LING, Qirong SHEN

《农业科学与工程前沿（英文）》 2019年 第6卷 第2期   页码 206-206 doi: 10.15302/J-FASE-2018234

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Isolation, characterization and identification of plant growth-promoting rhizobacteria from the rhizosphereof at sandy BRIS soil

《农业科学与工程前沿（英文）》 doi: 10.15302/J-FASE-2024559

摘要：

● Isolation of potential PGPR from rhizosphere sandy BRIS soil of Acacia mangium .

关键词： Biofertilizer     corn     organic molasses me- dium     PGP characteristic     phytohormone     potassium nitrate     siderophores    

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Mitigation strategies for soil acidification based on optimal nitrogen management REVIEW

《农业科学与工程前沿（英文）》 2024年 第11卷 第2期   页码 229-242 doi: 10.15302/J-FASE-2024562

摘要：

Soil acidification is a serious constraint to food production worldwide. This review explores its primary causes, with a focus on the role of nitrogen fertilizer, and suggests mitigation strategies based on optimal N management. Natural acidification is determined by the leaching of weak acid mainly caused by climate and soil conditions, whereas the use of ammonium-based fertilizers, nitrate leaching and removal of base cations (BCs) by crop harvesting mostly accounts for anthropogenic acidification. In addition, low soil acid buffering capacity, mainly determined by soil parent materials and soil organic matter content, also accelerates acidification. This study proposes targeted mitigation strategies for different stages of soil acidification, which include monitoring soil carbonate content and pH of soils with pH > 6.5 (e.g., calcareous soil), use of alkaline amendments for strongly acidic soils (pH < 5.5) with aluminum toxicity risk to pH between 5.5 and 6.5, and decreasing acidification rates and supplementing BCs to maintain this optimal pH range, especially for soils with low acid buffering capacity. Effective mitigation involves optimizing the rate and form of N fertilizers used, regulating N transformation processes, and establishing an integrated soil–crop management system that balances acid production and soil buffering capacity.

关键词： Soil acidification     nutrient management     nitrogen     soil buffering capacity    

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Rhizosphere effect of different aquatic plants on phosphorus depletion

WANG Zhenyu, WEN Shengfang, GAO Dongmei, LI Fengmin, XING Baoshan

《环境科学与工程前沿（英文）》 2008年 第2卷 第3期   页码 274-279 doi: 10.1007/s11783-008-0048-2

摘要： A series of pot experiments with , , and were conducted to assess the phosphorus depletion effect in the rhizosphere. The ratio of root to shoot, root morphology, phosphorus uptake efficiency and phosphorus utilization efficiency were analyzed. An obvious variation in phosphorus concentrations between the rhizosphere soil and non-rhizosphere soil was observed. The water-soluble P contents in the rhizosphere soil of , , and were reduced by 81%, 42%, 18% and 16%, respectively, compared with that in the non-rhizosphere soil. had the highest phosphorus uptake efficiency (1.32 mg/m), while achieved the effective phosphorus depletion by the strong rooting system and the high phosphorus uptake efficiency (0.52 mg/m). not only used phosphorus to produce biomass economically, but also adjusted carbon allocation to the roots to explore the soil for more available phosphorus. and were more effective in depleting phosphorus in the rhizosphere than and .
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Assessment of glass fiber-reinforced polyester pipe powder in soil improvement

《结构与土木工程前沿（英文）》 2021年 第15卷 第3期   页码 742-753 doi: 10.1007/s11709-021-0732-x

摘要： This study investigates the use of glass fiber-reinforced polyester (GRP) pipe powder (PP) for improving the bearing capacity of sandy soils. After a series of direct share tests, the optimum PP addition for improving the bearing capacity of soils was found to be 12%. Then, using the optimum PP addition, the bearing capacity of the soil was estimated through a series of loading tests on a shallow foundation model placed in a test box. The bearing capacity of sandy soil was improved by up to 30.7%. The ratio of the depth of the PP-reinforced soil to the diameter of the foundation model (H/D) of 1.25 could sufficiently strengthen sandy soil when the optimum PP ratio was used. Microstructural analyses showed that the increase in the bearing capacity can be attributed to the chopped fibers in the PP and their multiaxial distribution in the soil. Besides improving the engineering properties of soils, using PP as an additive in soils would reduce the accumulation of the industrial waste, thus providing a twofold benefit.

关键词： shallow foundation     sandy soil     bearing capacity     soil improvement     pipe powder    

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标题 作者 时间 类型 操作

Effect of rhizosphere on soil microbial community and pyrene biodegradation

SU Yuhong, YANG Xueyun, CHIOU Cary

期刊论文

Changes in bulk soil affect the disease-suppressive rhizosphere microbiome against Fusarium wilt disease

Lin FU, Wu XIONG, Francisco DINI-ANDREOTE, Beibei WANG, Chengyuan TAO, Yunze RUAN, Zongzhuan SHEN, Rong LI, Qirong SHEN

期刊论文

Microbial community and functional genes in the rhizosphere of alfalfa in crude oil-contaminated soil

Yi ZHONG, Jian WANG, Yizhi SONG, Yuting LIANG, Guanghe LI

期刊论文

The diazotrophic community in oat rhizosphere: effects of legume intercropping and crop growth stage

Yadong YANG, Xiaomin FENG, Yuegao HU, Zhaohai ZENG

期刊论文

OPPORTUNITIES AND APPROACHES FOR MANIPULATING SOIL-PLANT MICROBIOMES FOR EFFECTIVE CROP NITROGEN USE

期刊论文

A review of research progress on continuous cropping obstacles

期刊论文

Rhizosphere immunity: targeting the underground for sustainable plant health management

Zhong WEI, Ville-Petri FRIMAN, Thomas POMMIER, Stefan GEISEN, Alexandre JOUSSET, Qirong SHEN

期刊论文

Green intelligent fertilizers—A novel approach for aligning sustainable agriculture with green development

期刊论文

Sulfur mediated heavy metal biogeochemical cycles in coastal wetlands: From sediments, rhizosphere to

期刊论文

Improving the efficiency and effectiveness of global phosphorus use: focus on root and rhizosphere levels

null

期刊论文

Coupling of the chemical niche and microbiome in the rhizosphere: implications from watermelon grafting

Yang SONG, Chen ZHU, Waseem RAZA, Dongsheng WANG, Qiwei HUANG, Shiwei GUO, Ning LING, Qirong SHEN

期刊论文

Isolation, characterization and identification of plant growth-promoting rhizobacteria from the rhizosphereof at sandy BRIS soil

期刊论文

Mitigation strategies for soil acidification based on optimal nitrogen management

期刊论文

Rhizosphere effect of different aquatic plants on phosphorus depletion

WANG Zhenyu, WEN Shengfang, GAO Dongmei, LI Fengmin, XING Baoshan

期刊论文

Assessment of glass fiber-reinforced polyester pipe powder in soil improvement

期刊论文