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食用菌学报 2008年第4期 16-19页

作者： HE Lihong~(1,2) YU Rongli~1 CHEN Mingjie~(1*) PAN Yingjie~3(~1Key Laboratory of Applied Mycological Resources and Utilization,Ministry of Agriculture,the People's Republic of china,Shanghai Research Center for Edible Fungi Biotechnology and Engineering,Shanghai Key Laboratory of agricultural Genetics and Breeding,Institute of Edible Fungi,Shanghai Academy of agricultural sciences,Shanghai 201106,china ~2department of microbiology,college of life sciences,nanjing agricultural university,nanjing,jiangsu 210095,china ~3Shanghai Ocean university,Shanghai 200090,china)

An efficient and cost effective method for obtaining good quality DNA from composts containing high levels of organic matter has been *** protocol consisted of sample washing with sodium phosphate and EDTA,cell wall disruption using combined chemical and enzyme treatment prior to extraction,removal of humic acid and other inhibitors in high salt buffer containing polyvinyl polypyrrolidone (PVPP),and precipitation of DNA with polyethylene glycol (PEG-8000).The method was used to extract 16S ribosomal DNA from four samples taken at different stages in the preparation of PhaseⅡcompost used for Agaricus bisporus *** DNA was sufficiently free of contaminants to allow PCR amplification of products derived from bacteria,actinomycetes and *** products derived from PCR amplification of the extracted 16S rDNA using primers F27 and R1498 were used to construct 16S rDNA *** amplification of ten randomly selected positive clones using primer M13 revealed that the 16S rDNA insertion rate was higher than 90%.

关键词： Agaricus bisporus compost phaseⅡ bacterial 16S rDNA library

Maschke-type theorem and Morita context over weak Hopf algebras

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Science china Mathematics 2006年第5期49卷 587-598页

作者： ZHANG Liangyun college of Science, nanjing agricultural university, nanjing 210095, china department of Mathematics, nanjing university, nanjing 210008, china 1. college of Science Nanjing Agricultural University Nanjing 210095 China 2. department of Mathematics Nanjing University Nanjing 210008 China

This paper gives a Maschke-type theorem over semisimple weak Hopf algebras,extends the well-known Maschke-type theorem given by Cohen and Fishman and constructs a Morita context over weak Hopf algebras.

关键词： weak Hopf algebra, smash product, Maschke-type theorem, Morita context.

Cadmium transport mediated by soil colloid and dissolved organic matter:A field study

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Journal of Environmental sciences 2010年第1期22卷 106-115页

作者： Zhaoli Li, Lixiang Zhou college of Resources and Environmental sciences, nanjing agricultural university, nanjing 210095, china. [a] college of Resources Environmental sciences Nanjing Agricultural University Nanjing 210095 China

This study investigated the potential role of soil colloids and dissolved organic matter （DOM） in transporting Cd through in situ undisturbed paddy soil monoliths. Brilliant Blue was used as a tracer to assess the effect of preferential flow on Cd down migration. Experimental results showed that deep penetration of Cd and Brilliant Blue into the soil profile took place due to the preferential flow through macropores, mainly earthworm channels, with much of chemicals thus bypassing the soil matrix. Dye tracer and Cd distribution within the soil matrix was fairly restricted to several centimeters. Colloid restrained the migration of both dye and Cd in the matrix and preferential flow area. DOM facilitated the transport of Cd and Brilliant Blue in matrix and macropores by about 10 cm over that of the control. Pearson＇s is correlation analysis revealed strong associations between Brilliant Blue concentrations, exchangeable Cd and total Cd concentrations in three studied plots indicating that they had taken the same preferential flow pathway.

关键词： colloid dissolved organic matter preferential flow dye tracer

Effect of biosurfactant on the sorption of phenanthrene onto original and H_2O_2-treated soils

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Journal of Environmental sciences 2009年第10期21卷 1378-1385页

作者： PEI Xiaohong, ZHAN Xinhua, ZHOU Lixiang college of Resources and Environmental sciences, nanjing agricultural university, nanjing 210095, china. [a]college of Resources and Environmental sciences Nanjing Agricultural University Nanjing 210095 China. E-mail: ***@***

The objective of this study was to examine the effect of biosurfactant on the sorption of phenanthrene （PHE） onto the original or HzO2-treated black loamy soil （typic isohumisols） and red sandy soil （typic ferralisols）. The sorption isotherms were performed with the original and ＂soft＂ carbon-removed soils in the presence and absence of biosurfactant （200 mg/L）. The sorption and degradation of biosurfactant were investigated. The result showed that organic matter played an important role in PHE sorption onto the black loamy and red sandy soils, and the PHE sorption isotherms on the ＂soft＂ carbon-removed soils exhibited more nonlinearity than those on the original soils. The values of partition coefficient （Kd） on the original black loamy soil with or without 200 mg/L biosurfactant were 181.6 and 494.5 mL/g, respectively. Correspondingly, in the red sandy soil, Kd was 246.4 and 212.8 mL/g in the presence or absence of biosurfactant, respectively. The changes of Kd suggested that biosurfactant inhibited PHE sorption onto the black loamy soil, but facilitated PHE sorption onto the red sandy soil. The nonlinearity of PHE sorption isotherm was decreased in the presence of biosurfactant. Site specific sorption might occur during PHE sorption onto both the original and the ＂soft＂ carbon-removed soils in the presence of biosurfactant. It was noted that biosurfactant could also be sorbed onto soils. The maximal sorption capacity of the red sandy soil for biosurfactant was （76.9 ± 0.007） μg/g, which was 1.31 times that of black loamy soil. Biosurfactant was degraded quickly in the two selected soils, and 92% of biosurfactant were mineralized throughout the incubation experiment for 7 d. It implied that biosurfactant should be added frequently when the remediation of polycyclic aromatic hydrocarbon （PAH）-contaminated soils was conducted through PAH desorption approach facilitated by biosurfactant.

关键词： biosurfactant phenanthrene sorption "soft" carbon soil

L-R smash products for bimodule algebras

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Progress in Natural Science:Materials International 2006年第6期16卷 580-587页

作者： ZHANG Liangyun (department of Mathematics, nanjing agricultural university, nanjing 210095, china department of Mathematics, nanjing university, nanjing 210008, china) [a] department of Mathematics Nanjing Agricultural University Nanjing China [b] department of Mathematics Nanjing University Nanjing China

In this paper, we prove that the L-R smash product A(?)H is exactly the twisted smash product A * H if H is a finite dimensional cocommutative Hopf algebra, and give a sufficient and necessary condition for L-R smash products to be bialgebras (Hopf algebras) . For any finite dimensional coquasitriangular Hopf algebra (H,σ), we prove that the L-R smash product H(?)H is semisimple Artinian if H is semisimple and H * is unimodular. In particular, the L-R smash product D(H)* (?)D(H)* semisimple Artinian if the Drin-fel'd double D(H) is semisimple.

关键词： bimodule algebras L-R smash products coquasitriangular Hopf algebras Long bialgebras.

Alkaloid Accumulation in Catharanthus roseus Increases with Addition of Seawater Salts to the Nutrient Solution

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Pedosphere 2010年第6期20卷 718-724页

作者： WANG Jing-Yan and LIU Zhao-Pu college of Resources and Environmental sciences,nanjing agricultural university,nanjing 210095 (china) [a] college of Resources and Environmental sciences Nanjing Agricultural University Nanjing 210095 (China)

A sand culture experiment was conducted to determine the effects of different seawater (5% and 10%) treatments on plant growth,inorganic ions,indole alkaloid concentrations and yields of Catharanthus roseus,in an effort to increase the alkaloid yield by artificial *** total fresh and dry weights and tissue K + concentrations decreased,but Na + concentrations increased in the plant roots,stems and leaves of *** under seawater stress as compared to the *** concentrations and yields of vindoline,catharanthine,vinblastine and vincristine increased under seawater *** concentrations and yields of these alkaloids were higher in 5% seawater-treated plants than those in the 10% seawater-treated *** the industrial production,5% seawater treatments could reduce the cost of producing *** the control plants,the highest alkaloid concentrations reached a peak at 100 days after planting,suggesting that plant harvest must be optimized in terms of growth duration.

关键词： indole alkaloid inorganic ions plant growth seawater irrigation seawater stress

Lie comodules and the constructions of Lie bialgebras

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Science china Mathematics 2008年第6期51卷 1017-1026页

作者： ZHANG LiangYun college of Science,nanjing agricultural university,nanjing 210095,china college of Science Nanjing Agricultural University Nanjing 210095 China

In this paper,we first give a direct sum decomposition of Lie comodules,and then accord- ing to the Lie comodule theory,construct some(triangular)Lie bialgebras through Lie coalgebras.

关键词： Lie coalgebras Lie comodules Lie bialgebras triangular Lie bialgebras 16W30

Genotypic Differences in Grain Yield and Physiological Nitrogen Use Efficiency Among Rice Cultivars

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Pedosphere 2009年第6期19卷 681-691页

作者： ZHANG Ya-Li, FAN Jian-Bo, WANG Dong-Sheng and SHEN Qi-Rong2college of Resources and Environmental sciences, nanjing agricultural university, nanjing 210095 (china) [a]college of Resources and Environmental sciences Nanjing Agricultural University Nanjing 210095 (China)

Efficient use of N in agricultural practice can increase yield, decrease production costs and reduce the risk of environmental pollution. Effects of N fertilizer application rates on grain yield and physiological N use efficiency (PE) in relation to the accumulation and redistribution of biomass and N in rice (Oryza sativa L.) cultivars were studied at two experimental farms of nanjing agricultural university, nanjing, china in 2004. Three high N use efficiency (NUE) rice cultivars (Wuyunjing 7, Nanguang and 4007) and one low NUE rice cultivar (Elio) with similar growth patterns were studied under seven N rates (0, 60, 120, 180, 240, 300 and 360 kg ha -1 ). Grain yield increased with the N application rate and attained plateau at 180 kg N ha -1 for rice cultivars at each site. Increasing N rate decreased PE for biomass and grain yield. Grain yield and PE of Elio were about 20% and 18% lower than those of high NUE cultivars. Differences in biomass, N accumulation and N redistribution were observed at the post-heading stage among rice cultivars with differing NUEs. The less reproductive tillers of Elio resulted in less demand for C and N during grain filling, thus leading to lower PE of Elio compared with the high NUE rice cultivars.

关键词： accumulation biomass N application rate redistribution

Steel Slag as an Iron Fertilizer for Corn Growth and Soil Improvement in a Pot Experiment

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Pedosphere 2006年第4期16卷 519-524页

作者： WANG Xian CAI Qing-Sheng college of life sciences Nanjing Agricultural University Nanjing 210095 （China） department of Biology Zhoukou Normal College Zhoukou 366000 （China）

The feasibility of steel slag used as an iron fertilizer was studied in a pot experiment with corn. Slag alone or acidified slag was added to two Fe-deficient calcareous soils at different rates. Results showed that moderate rates (10 and 20 g kg-1) of slag or acidified slag substantially increased corn dry matter yield and Fe uptake. Application of steel slag increased the residual concentration of ammonium bicarbonate-diethylenetriamine pentaacetic acid (AB-DTPA) extractable Fe in the soils. The increase of extractable Fe was usually proportional to the application rate, and enhanced by the acidification of slag. Steel slag appeared to be a promising and inexpensive source of Fe to alleviate crop Fe chlorosis in Fe-deficient calcareous soils.

关键词： corn growth iron fertilizer pot experiment soil improvement steel slag

Duality theorem for weak L-R smash products

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Applied Mathematics(A Journal of Chinese Universities) 2010年第4期25卷 481-488页

作者： ZHOU Xiao-yan LI Qiang ZHANG Liang-yun department of Mathematics, nanjing agricultural university, nanjing 210095, china department of Mathematics Nanjing Agricultural University Nanjing China

This paper gives a duality theorem for weak L-R smash products, which extends the duality theorem for weak smash products given by Nikshych.

关键词： Weak Hopf algebras weak L-R smash products duality theorem.