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| 1 | 小麦/蚕豆,玉米/蚕豆和小麦/玉米间作对根际细菌群落结构的影响显示文摘利用PCR-DGGE技术研究了小麦/蚕豆、玉米/蚕豆和小麦/玉米间作对作物根际细菌群落结构的影响。结果表明:间作能够提高作物根际细菌群落多样性、改变根际细菌群落结构组成。其中,小麦/蚕豆间作对根际细菌群落结构的影响最为突出,作物花期时小麦/蚕豆间作显著提高和改变两种作物根际细菌多样性和群落结构组成。玉米/蚕豆间作主要表现出对苗期玉米根际细菌多样性的显著提高和群落结构组成的改变。小麦/玉米间作对作物根际细菌群落结构的影响程度较弱。同时,3种间作体系都具有不同程度的产量优势。结果证明了间作体系中地上部植物多样性与地下部微生物多样性存在紧密联系。 | 宋亚娜 MARSCHNER Petra 张福锁 包兴国 李隆 | 2006 | 生态学报2006，26，7： | 88 |
| 2 | Effects of soil moisture and plant interactions on the soil microbial community structure显示文摘 | Chen MM Zhu YG Su YH Chen BD Fu BJ Marschner P | 2007 | 中国生物学文摘2007，21，6： | 13 |
| 3 | Sorption of Water-Extractable Organic Carbon in Various Clay Subsoils: Effects of Soil Properties显示文摘Clay-rich subsoils are added to sandy soils to improve crop yield and increase organic carbon(C) sequestration; however, little is known about the influence of clay subsoil properties on organic C sorption and desorption. Batch sorption experiments were conducted with nine clay subsoils with a range of properties. The clay subsoils were shaken for 16 h at 4?C with water-extractable organic C(WEOC, 1 224 g C L^(-1)) from mature wheat residue at a soil to extract ratio of 1:10. After removal of the supernatant, the residual pellet was shaken with deionised water to determine organic C desorption. The WEOC sorption was positively correlated with smectite and illite contents, cation exchange capacity(CEC) and total organic C, but negatively correlated with kaolinite content. Desorption of WEOC expressed as a percentage of WEOC sorbed was negatively correlated with smectite and illite contents, CEC, total and exchangeable calcium(Ca) concentrations and clay content, but positively correlated with kaolinite content. The relative importance of these properties varied among soil types. The soils with a high WEOC sorption capacity had medium CEC and their dominant clay minerals were smectite and illite. In contrast, kaolinite was the dominant clay mineral in the soils with a low WEOC sorption capacity and low-to-medium CEC. However, most soils had properties which could increase WEOC sorption as well as those that could decrease WEOC sorption. The relative importance of properties increasing or decreasing WEOC sorption varied with soils. The soils with high desorption had a low total Ca concentration, low-to-medium CEC and low clay content, whereas the soils with low desorption were characterised by medium-to-high CEC and smectite and illite were the dominant clay minerals. We conclude that WEOC sorption and desorption depend not on a single property but rather a combination of several properties of the subsoils in this study. | Trung Ta NGUYEN Petra MARSCHNER | 2016 | Pedosphere2016，26，1： | 5 |
| 4 | Plant growth and soil microbial community structure of legumes and grasses grown in monoculture or mixture显示文摘A greenhouse pot experiment was conducted to investigate the in?uence of soil moisture content on plant growth and the rhizosphere microbial community structure of four plant species (white clover, alfalfa, sudan grass, tall fescue), grown individually or in a mixture. The soil moisture content was adjusted to 55% or 80% water holding capacity (WHC). The results indicated that the total plant biomass of one pot was lower at 55% WHC. At a given soil moisture, the total plant biomass of white clover and tall fescue in the mixture was lower than that in a monoculture, indicating their poor competitiveness. For leguminous plants, the decrease in soil moisture reduced the total microbial biomass, bacterial biomass, fungal biomass, and fungal/bacterial ratio in soil as assessed by the phospholipid fatty acid analysis, whereas, lower soil moisture increased those parameters in the tall fescue. The microbial biomass in the soil with legumes was higher than that in the soil with grasses and the two plant groups di?ered in soil microbial community composition. At high soil moisture content, microbial communities of the plant mixture were similar to those of the legume monoculture, and the existence of legumes in the mixture enhanced the bacterial and fungal biomass in the soil compared to the grasses grown in the monoculture, indicating that legumes played a dominant role in the soil microbial community changes in the plant mixture. | MARSCHNER Petra | 2008 | Journal of Environmental Sciences2008，20，10： | 5 |
| 5 | Clay Addition to Sandy Soil Influence of Clay Type and Size on Nutrient Availability in Sandy Soils Amended with Residues Differing in C/N ratio显示文摘Addition of clay-rich subsoil to sandy soil results in heterogeneous soil with clay peds(2-mm) or finely ground(< 2 mm) clay soil(FG), which may affect the nutrient availability. The aim of this study was to assess the effect of clay soil particle size(FG or peds)and properties on nutrient availability and organic C binding in sandy soil after addition of residues with low(young kikuyu grass,KG) or high(faba bean, FB) C/N ratio. Two clay soils with high and low smectite percentage, clay and exchangeable Fe and Al were added to a sandy soil at a rate of 20%(weight/weight) either as FG or peds. Over 45 d, available N and P as well as microbial biomass N and P concentrations and cumulative respiration were greater in soils with residues of KG than FB. For soils with KG residues,clay addition increased available N and initial microbial biomass C and N concentrations, but decreased cumulative respiration and P availability compared to sandy soil without clay. Differences in measured parameters between clay type and size were inconsistent and varied with time except the increase in total organic C in the < 53 μm fraction during the experiment, which was greater for soils with FG than with peds. We concluded that the high exchangeable Fe and Al concentrations in the low-smectite clay soil can compensate a lower clay concentration and proportion of smectite with respect to binding of organic matter and nutrients. | Shermeen TAHIR Petra MARSCHNER | 2017 | Pedosphere2017，27，2： | 4 |
| 6 | Assessment of Methods for Determining Bioavailability of Trace Elements in Soils: A Review显示文摘Trace element-contaminated soils(TECSs) are one of the consequences of the past industrial development worldwide. Excessive exposure to trace elements(TEs) represents a permanent threat to ecosystems and humans worldwide owing to the capacity of metal(loid)s to cross the cell membranes of living organisms and of human epithelia, and their interference with cell metabolism.Quantification of TE bioavailability in soils is complicated due to the polyphasic and reactive nature of soil constituents. To unravel critical factors controlling soil TE bioavailability and to quantify the ecological toxicity of TECSs, TEs are pivotal for evaluating excessive exposure or deficiencies and controlling the ecological risks. While current knowledge on TE bioavailability and related cumulative consequences is growing, the lack of an integrated use of this concept still hinders its utilization for a more holistic view of ecosystem vulnerability and risks for human health. Bioavailability is not generally included in models for decision making in the appraisal of TECS remediation options. In this review we describe the methods for determining the TE bioavailability and technological developments, gaps in current knowledge, and research needed to better understand how TE bioavailability can be controlled by sustainable TECS management altering key chemical properties, which would allow policy decisions for environmental protection and risk management. | Jurate KUMPIENE Laura GIAGNONI Bernd MARSCHNER Sébastien DENYS Michel MENCH Kristin ADRIAENSEN Jaco VANGRONSVELD Markus PUSCHENREITER Giancarlo RENELLA | 2017 | Pedosphere2017，27，3： | 3 |
| 7 | Influence of salinity and water content on soil microorganisms显示文摘Salinization is one of the most serious land degradation problems facing world.Salinity results in poor plant growth and low soil microbial activity due to osmotic stress and toxic ions.Soil microorganisms play a pivotal role in soils through mineralization of organic matter into plant available nutrients.Therefore it is important to maintain high microbial activity in soils.Salinity tolerant soil microbes counteract osmotic stress by synthesizing osmolytes which allows them to maintain their cell turgor and metabolism.Osmotic potential is a function of the salt concentration in the soil solution and therefore affected by both salinity(measured as electrical conductivity at a certain water content)and soil water content.Soil salinity and water content vary in time and space.Understanding the effect of changes in salinity and water content on soil microorganisms is important for crop production,sustainable land use and rehabilitation of saline soils.In this review,the effects of soil salinity and water content on microbes are discussed to guide future research into management of saline soils. | Nan Yan Petra Marschner Wenhong Cao Changqing Zuo Wei Qin | 2015 | International Soil and Water Conservation Research2015，3，4： | 3 |
| 8 | Soil Respiration, Microbial Biomass and Nutrient Availability in Soil After Addition of Residues with Adjusted N and P Concentrations显示文摘Microbial activity and nutrient release are known to be influenced by organic matter properties,but it is difficult to separate the effect of C/N ratio from that of C/P ratio because in most plant residues both ratios are either high or low.An incubation experiment was conducted to investigate the effects of reducing the C/N and C/P ratios of slowly decomposable plant residues(young eucalyptus leaves,mature wheat straw,and sawdust) to those of rapidly decomposable residues(young kikuyu shoots) on soil respiration,microbial biomass,and N and P availability.The C/N and C/P ratios of the former were adjusted to 15 and 89,respectively,by adding N as(NH_4)_2SO_4,P as KH_2PO_4 or both and residues were added at 10 g C kg-1 to a silt loam.Soil respiration was measured over21 d;microbial biomass C(MBC) and available N and P were measured on days 0,7,and 21.Compared to the unamended soil,addition of kikuyu increased cumulative respiration 20-fold,MBC concentration 4 to 8-fold,and available P concentration up to4-fold,whereas the increase in available N concentration was small and transient.Cumulative respiration and MBC concentration were low in the sawdust-amended soil and were not influenced by reducing the C/N and C/P ratios.Cumulative respiration with original wheat and eucalyptus was 30%-40%of that with kikuyu.Reducing the C/N ratio alone or both C/N and C/P ratios increased cumulative respiration and MBC concentration 2-fold compared to the original wheat and eucalyptus,whereas reducing the C/P ratio had little effect.Throughout the experiment,the available N concentration after addition of residues with reduced C/N ratio increased in the following order of eucalyptus < wheat < sawdust.By independently lowering the C/N and C/P ratios,microbial activity was more limited by C and N than P.However,lowering the C/N ratio of very slowly decomposable sawdust had no effect on soil respiration and MBC concentration,suggesting that other properties such as concentration of poorly decomposable C compounds limited decomposition. | Trung Ta NGUYEN Petra MARSCHNER | 2017 | Pedosphere2017，27，1： | 3 |
| 9 | Structure and function of the soil microbial community in a long-term fertilizer experiment显示文摘 | Petra Marschner Ellen Kandeler Bernd Marschner | 2003 | Soil Biology and Biochemistry2003，，3： | 2 |
| 10 | Citric acid excretion and precipitation of calcium citrate in the rhizosphere of white lupin显示文摘 | Dinkelaker B Romheld V Marschner H | 1989 | Plant Cell and Environment1989，12，： | 1 |
| 11 | Isolation of apoplastic flu- id from sunflower leaves and its use for studies on influence of ni- trogen supply on apoplasmic pH 显示文摘 | Dannel F Pfeffer H Marschner H | 1995 | J Plant Physiol1995，146，： | 1 |
| 12 | Epithelial cell adhesion molecule expression(CD326)in cancer:a short review显示文摘 | Patriarca C Macchi RM Marschner AK | 2012 | Cancer Treat Rev2012，38，1： | 1 |
| 13 | Use of microtensionmeter technique to study hydraulic lift in a sandy soil planted with pearl millet显示文摘 | VETERIEIND MARSCHNER H | 1993 | Plant and Soil1993，149，2： | 1 |
| 14 | Activities of peroxidescavenging enzymes in germinating wheat seeds显示文摘 | Cakmak I Strbac D Marschner H | 1993 | J Exp Bot1993，44，1： | 1 |
| 15 | Activities of hydrogen peroxide-scavenging enzymes in germinating wheat seeds显示文摘 | CAKMAK I STRBOE D MARSCHNER H | 1993 | Exp Bot1993，44，： | 1 |
| 16 | Influence of the form nitrogen supply on root uptake and translocation of cations in the xylem exudates of maize(ZeaTnays L) 显示文摘 | Engels C Marschner H | 1993 | Exp Bot1993，，44： | 1 |
| 17 | In vivo demonstration of acid phosphatase activity in the rhizosphere of soil-grown plants显示文摘 | DINKELAKER B MARSCHNER H | 1992 | Plant and Soil1992，，144： | 1 |
| 18 | Animation and Rendering of Complex Water Surfaces显示文摘 | Douglas Enright Stephen Marschner | 2002 | ACM Transactions on Graphics2002，21，3： | 1 |
| 19 | Strategies of plants for acquisition of iron显示文摘 | Marschner H R(o)mheld V | | 0，，： | 1 |
| 20 | Magnesium deficiency and highlight intensity enhance activities of superoxide dismutase a-scorbate peroxidase and glutathione reductase in bean leaves显示文摘 | Cakmak I Marschner H | 1992 | Plant Physiology1992，98，： | 1 |
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