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Screening of Amaranth Cultivars(Amaranthus mangostanus L.) for Cadmium Hyperaccumulation

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Agricultural Sciences in China 2009年第3期8卷 342-351页

作者： FAN Hong-li zhou wei Key Laboratory of Crop Nutrition and Fertilization Ministry of Agriculture~Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural Sciences Beijing 100081 P.R. China

The potential harm of soil cadmium pollution to ecological environment and human health has been increasingly widely concerned. Phytoremediation, as a kind of new and effective technology, has become an important method for cleaning up cadmium in contaminated sites. The amaranth （Amaranthus mangostanus L.） is widely distributed and has abundant varieties in China, its rapid growth and large biomass can be served as candidate for cadmium hyperaccumulators for phytoremediation. To obtain cadmium hyper-accumulator, Cd uptake in 23 amaranth cultivars from different ecological region was investigated under hydroponic culture condition. Meanwhile, pot experiment was established to probe phytoremediation potentiality of Cd contaminated soil by amaranth. Three treatment （Cd 5, 10, and 25 mg kg^-1） were imposed to red soil, yellow brown soil, and vegetable soil. The results showed that under hydroponic culture with Cd 3 mg L^-1, the cadmium concentration in the shoots of the cultivar Tianxingmi reached 260 mg kg^-1, and its total cadmium uptake was the highest among various cultivars. In the treatment Cd 25 mg kg^-1, the cadmium concentration in the shoots of the cultivar Tianxingmi reached 212 mg kg^-1, while bioaccumulation factor and shoot purification rate reached 8.50 and 3.8%, respectively. Further, the total biomass and shoot biomass were not decreased significantly under Cd exposure. These results suggested that cultivar Tianxingmi is a typical Cd hyperaccumulator, and can be expected to be used in phytoremediation of Cd contaminated soil.

关键词： cadmium hyperaccumulation amaranth phytoremediation

Impact of supercritical adsorption mechanism on research of hydrogen carrier

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Chinese Science Bulletin 2007年第8期52卷 1146-1152页

作者： SUN Yan zhou li SU wei zhou YaPing Adsorption Laboratory of the Key State Laboratory of Chemical Engineering Tianjin University Tianjin 300072 China

Hydrogen storage receives the worldwide attention due to its importance in sustainable energy and the solution of greenhouse *** provides an efficient way to compress gases and,therefore, has been applied to the development of hydrogen storage ***,hydrogen is a super- critical gas at the temperature of engineering interest and follows a different adsorption mechanism compared to the sub-critical *** present work shows why only monolayer coverage mechanism functions at above-critical temperatures and what consequences will result in the application study. Although there are pros and cons to this point of view,understanding the adsorption mechanism is,in- deed,essential for the research of hydrogen storage method since it claims that any storage material based on adsorption will not satisfy the practical need of on board storage no matter how novel the material is.

关键词：超临界吸附机制氢能载体储氢材料

Studies on the Crystal Structure and Photoluminescence of a Mercury(Ⅱ)Complex Based on a Novel Pyridine ligand

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Chinese Journal of Structural Chemistry 2010年第7期29卷 1029-1032页

作者： WU Jie-Ying zhou Wen li wei-Jie zhou Hong-Ping TIAN Yu-Peng Department of Chemistry Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province Anhui University Hefei 230039 China

A novel mercury（H） complex HgL2Br2 was prepared from HgBr2 and the organic ligand 2-（N-methyl-N-（4-（（E）-2-（pyridine-4-yl）vinyl）phenyl）amino）ethanol （L）. The ligand was synthesized and then characterized by FT-IR spectroscopy, tH NMR, mass spectrum and elemental analysis, while the single-crystal diffraction data of the complex were collected on a Siemens Smart CCD diffractometer. The complex crystallizes in triclinic space group PI with a = 5.367（5）, b = 12.466（5）, c = 23.945（5） A, α = 90.812（5）, β = 96.318（4）, γ = 96.093（5）°, Z = 2, Dc = 1.817 ***3,μ = 7.395 mm^-1, S = 0.825, and the final R= 0.0396. The Hg（Ⅱ） ion in the distorted tetrahedral mercury（Ⅱ） complex C32H36HgBr2N4O2 is coordinated by two N atoms from the two ligands together with two bromide ions. Solid-state emission of the ligand and its complex has been investigated at room temperature.

关键词： mercury(Ⅱ) complex single-photon fluorescence crystal structure

Scandia doped tungsten matrix for impregnated cathode

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Rare Metals 2008年第1期27卷 9-12页

作者： WANG Jinshu WANG Yanchun liU wei li Hongyi zhou Meiling School of Materials Science and Engineering Beifing University of Technology Beijing 100022 China

As a matrix for Sc-type impregnated cathode,scandia doped tungsten with a uniform distribution of Sc2O3 was obtained by powder metallurgy combined with the liquid-solid doping *** microstructure and composition of the powder and the anti-ion bombardment behavior of scandium in the matrix were studied by means of SEM,EDS,XRD,and in-situ AES *** powder covered with scandium oxide,an ideal scandium oxide-doped tungsten powder for the preparation of Sc-type impregnated cathode,was obtained using the liquid-solid doping *** with the matrix prepared with the mechanically mixed powder of tungsten and scandium oxide,Sc2O3-W matrix prepared with this kind of powder had smaller grain size and uniform distribution of *** on the surface of Sc2O3 doped tungsten matrix had good high temperature stability and good anti-ion bombardment capability.

关键词： scandia tungsten impregnated cathode doping

Global diversity and systematics of Hymenochaetaceae with poroid hymenophore

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Fungal Diversity 2022年第2期113卷 1-192页

作者： Fang Wu li-wei zhou Josef Vlasak Yu-Cheng Dai Institute of Microbiology School of Ecology and Nature ConservationBeijing Forestry UniversityBeijing 100083China Beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beijing Forestry UniversityBeijing 100083China State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China Biology Centre of the Academy of Sciences of the Czech Republic Branisovska 3137005 Ceske BudejoviceCzech Republic

Taxonomy and phylogeny of poroid Hymenochaetaceae based on the most comprehensive phylogenetic analyses are pre-sented.A phylogeny based on a combined dataset of ITS and nLSU sequences for accepted genera of Hymenochaetaceae was analyzed and two or multigene phylogenies for most species of ten large genera including Coltricia,Fomitiporella,Fomiti-poria,Fulvifomes,Fuscoporia,Inonotus,Phylloporia,Porodaedalea,Sanghuangporus and Tropicoporus,were carried *** on samples from 37 countries of five continents,seven new genera,Meganotus,Neophellinus,Nothonotus,Pachynotus,Perenninotus,Pseudophylloporia and Rigidonotus,are introduced,37 new species,Coltricia tibetica,Fomitiporella crassa,***,Fomitiporia eucalypti,***,***,Fulvifomes azonatus,***,***,***,***,***,***,Fuscoporia sinuosa,***,Inonotus subradiatus,***,Neomensularia castanopsidis,Pachynotus punctatus,Phellinus cuspidatus,***,Phylloporia minutissima,***,Porodaedalea occidentiamericana,***,***,***,Pseudo-phylloporia australiana,Sanghuangporus australianus,***,Tropicoporus angustisulcatus,***,***,***,***,*** and ***,are described,and 108 new combinations are *** addition,one illegitimate name and two invalid names are renamed,and Coltricia and Coltriciella were *** taxonomic relevance and limits of the new taxa are *** and illustrations for 37 new species are presented,and a full description for each new species is ***,this study recognizes 672 species in 34 genera and provides a modern treatment of the poroid Hymenochaetaceae in the world.A key to the accepted poroid genera of Hymenochaetaceae is provided,and identification keys to the accepted species of 32 poroid genera worldwide are given.A synopsis description of each species is included in the

关键词： Hymenochaetales Phylogeny Polypore Taxonomy 155 New taxa

Changes in phenolic content,composition,and antioxidant activity of blood oranges during cold and on-tree storage

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Journal of Integrative Agriculture 2022年第12期21卷 3669-3683页

作者： ZHAO Ji-chun AO Miao HE Xiao-qin li wei-zhou DENG li-li ZENG Kai-fang MING Jian College of Food Science Southwest UniversityChongqing 400715P.R.China Research Center of Food Storage&Logistics Southwest UniversityChongqing 400715P.R.China

Citrus fruits are rich in phenolic compounds that possess several health ***,few studies have focused on the changes in phenolic compounds in citrus fruits during postharvest *** study dynamically monitored the phenolic content,components and antioxidant activity of‘Tarocco’blood oranges during a period of 12-week cold storage and on-tree storage,*** investigated the alteration mechanism of phenolic compounds in blood oranges by evaluating phenylpropanoid pathway-related enzyme activities and gene *** showed that flavanones were the main phenolic compounds in blood *** storage methods mainly stimulated the accumulation of phenolic acids to improve total phenolic content,which reached the maximum at week ***,blood oranges had a higher phenolic content and antioxidant activity under on-tree storage than cold ***,the enzyme activities and gene expression of the phenylpropanoid pathway demonstrated that the accumulation of phenolics in blood oranges during storage was highly related to the activation of the phenylpropanoid *** results demonstrate that on-tree storage is a potential approach for extending the supply period of blood orange from the perspective of phenolic compounds.

关键词： ‘Tarocco’blood orange polyphenol components antioxidant ability phenylpropanoid pathway on-tree storage

Resource diversity of Chinese macrofungi:edible,medicinal and poisonous species

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Fungal Diversity 2019年第5期98卷 1-76页

作者： Fang Wu li-wei zhou Zhu-liang Yang Tolgor Bau Tai-Hui li Yu-Cheng Dai School of Ecology and Nature Conservation Beijing Forestry UniversityBeijing 100083China Institute of Applied Ecology Chinese Academy of SciencesShenyang 110016LiaoningChina State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650204YunnanChina Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi Jilin Agricultural UniversityChangchun 130118JilinChina Guangdong Institute of Microbiology Guangzhou 510070GuangdongChina Beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beijing Forestry UniversityBeijing 100083China

The huge land areas in China provide highly diverse habitats for *** these macrofungi,many are directly related to people’s daily life and have been utilized by ancient Chinese for at least 6800 *** this study,we evaluate the current known resource diversity of Chinese macrofungi.A total of 1662 taxa are summarized,and all species names and their authorities have been checked and corrected according to authentic mycological *** the 1662 taxa,1020,692,and 480 are considered to be edible,medicinal and poisonous mushrooms,respectively.A few of edible macrofungi in China are commonly used for commercial *** known medicinal functions are labeled for medicinal *** most common medicinal functions possessed by Chinese macrofungi are antitumor or anticancer,followed by antioxidant and antimicrobial.A total of 277 Chinese macrofungi are edible simultaneously with certain medicinal functions and without known *** species could be treated as“Gold Mushrooms”.Contrarily,193 edible and/or medicinal species are also recognized as poisonous *** avoid poisoning caused by these species,ingestion either in a proper way or in small amounts is ***,the mycotoxins metabolized by these poisonous species could be a huge wealth of natural products yet to be *** to utilize these Chinese macrofungal resources is a critical to benefit humans worldwide.

关键词： Economic fungi Edible mushroom Fungal toxicity Medicinal function Nomenclature

Phylogeny,divergence time estimation,and biogeography of the genus Heterobasidion(Basidiomycota,Russulales)

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Fungal Diversity 2015年第2期71卷 185-200页

作者： Jia-Jia Chen Bao-Kai Cui li-wei zhou Kari Korhonen Yu-Cheng Dai Institute of Microbiology and Beijing Key Laboratory for Forest Pest Control Beijing Forestry UniversityP.O.Box 61Beijing 100083China State Key Laboratory of Forest and Soil Ecology Institute of Applied EcologyChinese Academy of SciencesShenyang 110164China Finnish Forest Research Institute Vantaa UnitP.O.Box 1801301 VantaaFinland

There have been several investigations into the genus Heterobasidion,however,differentiation of species in these studies have depended on the gene regions *** defining of species,establishing species divergence times and establishing species biogeographical distributions have been ***,we used a multilocus phylogenetic approach and maximum parsimony,maximum likehood,and Bayesian analyses to infer the phylogenetic relationships of Heterobasidion *** addition,we focused on a fungus fossil-based approach and used the largest subunit of RNA polymerase II-the second subunit of RNA polymerase II(RPB1-RPB2)dataset to perform maximum likelihoodbased estimation and Bayesian binary analyses,to assess the divergence and biogeographical distributions of Heterobasidion *** Heterobasidion annousum/*** species complex clusters in three groups in the phylogenetic *** dating suggests that ancestral Heterobasidion species originated in Eurasia during the Early Miocene,followed by dispersal and speciation to other continents during the Middle Miocene and Early *** data are compatible with the previous viewpoint that *** and *** colonized North America via different routes,which has been interpreted as Beringian and Thulean North Atlantic *** addition,we propose that the occurrence of *** in the southern Hemisphere was probably due to recent human-mediated *** tectonics and long-distance dispersal are the most likely factors that influenced Heterobasidion speciation and biogeography.

关键词： Biogeography Divergence time Heterobasidion Phylogeny Refugia

THE VOID FRACTION DISTRIBUTION IN TWO-DIMENSIONAL GAS-liQUID TWO PHASE FLOW USING IMAGE PROCESS METHOD

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Journal of Hydrodynamics 2006年第2期18卷 127-134页

作者： ZHAO Ke-yu CHENG Wen liAO wei-li zhou Xiao-de College of Water Resource and Architectural Engineering Northwest Agriculture and Forestry University Xi＇an 712100 China Environment Research Institute Xi＇ an University of Technology Xi＇an 710048 China

An image processing method for measuring the instantaneous two-dimensional （2D） local void fraction at high bubble number density was proposed. It was based on computing a correlation between the locally averaged brightness of the bubble plume images and the real void fraction. The method was tested using the 2D distribution of local void fraction from visualized image, where a correlation between the locally averaged brightness and the projection void fraction was derived by introducing an ideal of overlapping probability of the bubble-images under various conditions. This research was used to study the behavior of the bubbly flows with aspect ratio of 1.0,1.5, and 2.0. The present method was applied to the instantaneous measurement. The void fraction for bubble plumes of three different aspect ratios with three different bubble generating flow rates were measured for the clarification of the effect of the bubble on the behavior of the bubbly flows. Dependency of the void fraction on the gas flow rate was measured and compared to other results from the literature. In the range of our experiments, it was observed that not only does an aspect ratio of the tank affect the structure of the plume, but also the gas flow rate in the tank affects the structure of the plume.

关键词： local void fraction gas-liquid two-phase flow,brightness aspect ratio the projection void fraction