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期刊论文 12

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2022 3

2020 2

2019 4

2012 1

2008 2

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人工湿地 1

微生物群落组成 1

根系微生物 1

污染修复 1

芦苇 1

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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    

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    

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.

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    

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    

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    

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

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    

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

《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    

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 .

Strategies for improving fertilizer phosphorus use efficiency in Chinese cropping systems

Gu FENG, Jingping GAI, Xionghan FENG, Haigang LI, Lin ZHANG, Keke YI, Jialong LV, Yiyong ZHU, Li TANG, Yilin LI

《农业科学与工程前沿(英文)》 2019年 第6卷 第4期   页码 341-347 doi: 10.15302/J-FASE-2019280

摘要:

A four-year project, entitled “The mechanisms of fraction transformation and high use efficiency of P fertilizer in Chinese cropping systems” commenced in 2017. The project was established to answer three key questions and looked at 17 cropping systems on ten soils. First, we asked what are the dynamics of transformation, fixation and mobilization of P fertilizers in soil-cropping systems? Second, what are the mechanisms of soil-crop-microbe interactions by which P fertilizer can be efficiently used? Third, how to manipulate the processes of P use in cropping systems? The targets of this project are (1) to explore the mechanisms of P fixation, the pathways of loss of P availability and the threshold of migration of fertilizer P in the field; (2) to uncover mechanisms by which soil legacy P is mobilized through root physiological and morphological processes and through arbuscular mycorrhizal fungi and P-solubilizing bacteria in rhizosphere and hyphosphere; (3) to estimate the biological potential of crops for high efficiency P absorption and use; (4) to innovate new approaches for improving the efficiency of P fertilizers. The outcomes will provide theoretical support for setting standards for limitation of P fertilizer application rate in the main cropping zones of China.

关键词: fixation     mobilization     phosphorus fertilizer     rhizosphere     transformations     utilization    

湿地芦苇根系微生物群落组成与环境应用 Review

王东麟, 柏耀辉, 曲久辉

《工程(英文)》 2022年 第9卷 第2期   页码 42-50 doi: 10.1016/j.eng.2021.05.016

摘要:

芦苇是自然界广泛存在的湿地植物。在人工湿地中,约15.5%的种植植物是芦苇,其在废水水质净化中起到重要的作用。尽管如此,对芦苇根系微生物群落的基本组成及每一类微生物在污染物去除中的作用仍不清晰。本文总结了已有对芦苇根系微生物群落(包括细菌、古菌及真菌)在生态及生化方面的研究。基于下一代测序,对不同环境条件下的微生物群落组成进行了分析。此外,利用培养方法进一步研究了微生物群落的功能特征,如铁的固定、有机物的降解、营养元素的转化等。芦苇根系微生物群落独特的结构和功能受芦苇种类及盐度等环境因素的高度影响。基于现有对芦苇根系微生物群落的研究,我们建议在人工湿地中应用和强化合成微生物群落和铁锰氧化物基质,以提高湿地的水净化性能。

关键词: 芦苇     根系微生物     微生物群落组成     污染修复     人工湿地    

标题 作者 时间 类型 操作

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

Effect of rhizosphere on soil microbial community and pyrene biodegradation

SU Yuhong, YANG Xueyun, CHIOU Cary

期刊论文

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

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

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

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

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

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

Strategies for improving fertilizer phosphorus use efficiency in Chinese cropping systems

Gu FENG, Jingping GAI, Xionghan FENG, Haigang LI, Lin ZHANG, Keke YI, Jialong LV, Yiyong ZHU, Li TANG, Yilin LI

期刊论文

湿地芦苇根系微生物群落组成与环境应用

王东麟, 柏耀辉, 曲久辉

期刊论文