Shu-Xian Guo

Shu-Xian Guo

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49
Publications
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95
Citations
Citations since 2016
20 Research Items
59 Citations
20162017201820192020202120220510152025
20162017201820192020202120220510152025
20162017201820192020202120220510152025
20162017201820192020202120220510152025
Introduction
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Publications

Publications (49)
Article
Chloroflexi members are ubiquitous and have been extensively studied; however, the evolution and metabolic pathways of Chloroflexi members have long been debated. In the present study, the evolution and the metabolic potentials of 17 newly obtained Chloroflexi metagenome-assembled genomes (MAGs) were evaluated using genome and horizontal gene trans...
Article
Phenol is one of the major organic pollutants in high salt industrial wastewaters. The biological treatment of such waste using microorganisms is considered to be a cost-effective and eco-friendly method. However, in this process, salt tolerance of microorganisms is one of the main limiting factors. Halophilic microorganisms, especially halophilic...
Article
Full-text available
Two extremely halophilic strains, designated SYSU A558-1T and SYSU A121-1, were isolated from a saline sediment sample collected from Aiding salt lake, China. Cells of strains SYSU A558-1T and SYSU A121-1 were Gram-stain-negative, coccoid, and non-motile. The isolates were aerobic and grew at NaCl concentration of 10-30% (optimum, 20-22%), at 20-55...
Preprint
Full-text available
Two extremely halophilic strains, designated SYSU A558-1 T and SYSU A121-1, were isolated from a saline sediment sample collected from Aiding salt lake, China. Cells of strains SYSU A558-1 T and SYSU A121-1 were Gram-stain-negative, coccoid, and non-motile. The isolates were aerobic and grew at NaCl concentration of 10-30% (optimum, 20-22%), at 20-...
Article
Full-text available
The haloalkalitolerant bacterium Egicoccus halophilus EGI 80432T exhibits high adaptability to saline–alkaline environment. The salinity adaptation mechanism of E. halophilus EGI 80432T was fully understood based on transcriptome analyses and physiological responses; however, the alkaline response mechanism has not yet been investigated. Here, we i...
Article
Full-text available
Two extremely halophilic archaea, isolates SYSU A00711T and SYSU A00630, were isolated from a sediment soil sample collected from the Aiding lake, China. Cells of these isolates were cocci, non-motile and stained Gram-negative. They grew optimally at 37 °C, with 20–22% NaCl (w/v) and at pH 7.5–8.0. Cells lysed in distilled water. Major polar lipids...
Article
A novel Gram-stain-positive, catalase-positive, oxidase-negative, aerobic, non-motile, rod-shaped bacterium, designated strain YIM M12148 T , was isolated from a marine sediment sample collected from the Indian Ocean. The strain grew optimally at 28 °C, pH 8.0 and in the presence of 1–3 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene seq...
Article
Full-text available
In the present study, physicochemical and microbial diversity analyses of seven Indian hot springs were performed. The temperature at the sample sites ranged from 32 to 67°C, and pH remained neutral to slightly alkaline. pH and temperature influenced microbial diversity. Culture-independent microbial diversity analysis suggested bacteria as the dom...
Article
Full-text available
“ Candidatus Nitrosocaldaceae” are globally distributed in neutral or slightly alkaline hot springs and geothermally heated soils. Despite their essential role in the nitrogen cycle in high-temperature ecosystems, they remain poorly understood because they have never been isolated in pure culture, and very few genomes are available. In the present...
Article
Full-text available
It was brought to our attention that the proposed name Paenibacillus yunnanensis is an illegitimate homonym of Paenibacillus yunnanensis Niu et al. 2015. We therefore propose changing the name of the newly proposed species to Paenibacillus tengchongensis as follows.
Article
Objective: To explore the effect and mechanism of astaxanthin on acute kidney injury in rats with full-thickness burns. Methods: Forty-eight male Sprague Dawley rats of 8 to 10 weeks were divided into sham injury group, simple burn group, burn+ vehicle group, burn+ low-dose astaxanthin group, burn+ medium-dose astaxanthin group, and burn+ high-dose...
Article
Full-text available
A Gram stain-positive, rod-shaped and motile bacterium, designated SYSU G01003T was isolated from a sediment sample collected from tepid spring in Tengchong, Yunnan province, southwestern China. Growth observed at temperature ranging 28–37 °C (optimum 37 °C) and pH 6.0–8.0 (optimum pH 7.0). Tolerance to NaCl was up to 2.5% (w/v) (optimal in the abs...
Article
There are many factors that may affect the microenvironment of acute and chronic wounds. This article reviews the relationship between temperature factor in the external microenvironment of wound surface and wound healing. The temperature changes in different types and stages of wounds are closely related to the wound healing status. Therefore, wou...
Article
目的: 探讨富氢盐水对大鼠重度烧伤后急性肾损伤的影响并分析相关机制。 方法: 将56只SD大鼠按照随机数字表法分为假伤组8只、烧伤组24只、富氢盐水组24只。假伤组大鼠背部采用温水浴(20 ℃,15 s)模拟致伤,烧伤组和富氢盐水组大鼠背部采用沸水浴法(100 ℃,15 s)致Ⅲ度30%体表总面积的重度烫伤(以下称烧伤)。富氢盐水组大鼠伤后立即一次性腹腔注射富氢盐水10 mL/kg,假伤组和烧伤组大鼠伤后立即注射同等剂量生理盐水。伤后6 h 3组大鼠均按4 mL·kg(-1)·%TBSA(-1)腹腔注射乳酸钠林格液进行复苏。假伤组于伤后72 h,烧伤组和富氢盐水组分别于伤后6、24、72 h选取8只大鼠,取腹主动脉血后处死取肾脏组织,行苏木素-伊红染色观察组织病理学情况和进行肾小管损伤评分,...
Article
Dendrobium officinale is a member of the family Orchidaceae. The dried stem of D. officinale is used as a valuable traditional Chinese medicine, known as Dendrobii Officamlis Caulis (called TiepiShihu in Chinese). According to Chinese Pharmacopoeia, Dendrobii Officamlis Caulis has effects of tonifying stomach, promoting fluid, nourishing Yin and cl...
Article
OBJECTIVE: To provide scientific basis for variety evaluation and selection of Dendrobium officinale. METHODS: The agronomic traits of D. officinale were measured. The chemical compositions of D. officinale stem were analyzed. The dynamic changes of plant biomass and chemical composition content during mycorrhizal cultivation with M2 (Mycena sp.)we...
Article
OBJECTIVE: To provide the scientific basis for the application of mycorrhizal fungi in Dendrobium officinale artificial cultivation. METHODS: The dominant strain was screened in a planting base by using biomass as the index. The effects of initial inoculums and supplementary inoculation on the growth and the chemical composition of D. officinale we...
Article
目的:探讨含纳米银的胶原蛋白-丝素蛋白支架对大鼠全层皮肤缺损创面真皮再生的影响。 方法:采用冷冻干燥法分别制备81个含纳米银的胶原蛋白-丝素蛋白支架(纳米银质量浓度为10 mg/L)及81个不含纳米银的胶原蛋白-丝素蛋白支架,分别归为纳米银支架组和对照支架组。每组取9个支架加入人Fb培养,于培养2、12、24 h每组取3孔支架,计数2组支架区域黏附人Fb。于36只SD大鼠背部各制作4个全层皮肤缺损创面,将大鼠按随机数字表法平均分为纳米银支架组和对照支架组,创面分别移植含纳米银的胶原蛋白-丝素蛋白支架和不含纳米银的胶原蛋白-丝素蛋白支架。于术后1、2、4周,每组分别取6只大鼠处死,对创面进行大体观察,HE染色观察组织结构、炎性细胞浸润及胶原沉积情况,免疫组织化学染色观察计数CD68阳性细胞,实...
Article
OBJECTIVE: To study the effect of mycorrhizal fungi on the growth and the main chemical composition accumulation of Dendrobium nobile seedlings. METHODS: Seedlings which inoculated mycorrhizal fungus MF23 grew for 18 months, and were sampled regularly. The stem height and the dry weight of plant organs were measured and the content of dendrobine an...
Article
Acute kidney injury (AKI), one of the common and important complications post burn, shows a high incidence and mortality in severely burned patients. The common etiologic factors involved in the development of AKI post burn include hypovolaemia, denatured proteins, nephrotoxic agents, etc., while the molecular mechanisms include oxidative stress in...
Article
The authors have summarized and analyzed the research and application of biological treatment on the oil production wastewater of Shengli oilfield. The results indicated that the biological wastewater treatment technology had special advantages in removing dissolved oil, emulsified oil, and other organic pollutants. By biological treatment or combi...
Article
OBJECTIVE: To review the research progress of Dendrobium officinale protocorni/protocorm-like bodies according to relevant references at home and abroad in recent len years, and to explore its development prospect. METHODS: Based on the searched literatures, the research progress in the aspects of culture techniques, chemical constituents and pharm...
Article
OBJECTIVE: To study the chemical constituents of Dendrobium devonianum. METHODS: The compounds were isolated and purified by means of column chromatography with silica gel, Sephadex LH-20 and prep- HPLC. Their structures were identified on the basis of physicochemical parameters and spectroscopic data comparison with standard literature data. RESUL...
Article
OBJECTIVE: To study the effect of different media on seed germination and young seedling propagation of Anoectochilus roxburghii. METHODS: A. roxburghii seeds were cultured in 6 basal media for 12 weeks, and germination rates were calculated; orthogonal design was used to study the effects of NAA and 6-BA on the propagation of young seedlings of A....
Article
OBJECTIVE: To study the chemical constituents of Dendrobium officinale protocorm. METHODS: The compounds were isolated and purified by means of column chromatography, and their structures were identified on the basis of spectroscopic data and comparison with standard literature data. RESULTS: Eight compounds were isolated from the(CH 3) 2CO, CHCl 3...
Article
In order to reveal the biological community changes of hydrolytic acidification-aerobic system in oilfield produced water treatment, the biological phase of aerobic tank was observed, and the genomic DNA of microbial communities was extracted. The V3 region in DNA was amplified by the universal primers, and the bacterial community structure of hydr...
Article
A strain A2 is separated from the oil/water sample in Shengli Oilfield, which can produce surfactant by means of hydrocarbons at high temperature. It belongs to Petrobacter. The experimental results show that, the degradation rate of the strain to Gudao crude oil and Gan 17 crude oil can reach to 39.81% and 22.60% separately; its viscosity reducing...
Article
Under simulated reservoir conditions, the forms and flow phenomena of remaining oil during water flooding and microbial flooding were observed and analyzed by using microvisual simulation plane models and microvisual models with blind holes. The micromechanism of microbial flooding and remaining oil displacement in blind holes was researched. By rh...
Article
The biodegradability of the polymer-contained wastewater is improved based on the analyses of the quality and the biodegradability of the polymer-contained wastewater. After the culture and training of biomembrane, the laboratory biological contact oxidation simulation experiment of the wastewater is carried. The variation of the polyacrylamide con...
Article
Aerobic biosurfactant producing bacteria W18, DM-2 and SH-1 and anaerobic biogas producing bacteria Li and 4F were studied for their EOR performance invisible transparent etched reservoir-simulating micromodels under high temperature high pressure reservoir conditions. These bacterial strains all survived in the experimental micromodels and perform...
Article
Full-text available
The wide applications of polymer flooding cause the produced water to contain a lot of polyacrylamide. It the produced water is discharged into environment, the environment will be seriously polluted, and if it is reinjected into deformation again, it will lead fatal damage to oil reservoir. A strain of degrading bacteria of polyacrylamide, which c...
Article
To study the influence of methyl esterification on the ultraviolet absorption of gamma-linolenic acid. To measure the ultraviolet absorption value of some gamma-linolenic acid product by Ultraviolet Spectrophotometry before and after methyl esterification and to measure the fatty acids formation with gas chromatographic method. Then to do a correla...
Article
In order to improve the biochemical treating effect of oilfield produced water, three bacteria strains, JQ-1, JQ-2, JQ-3, are isolated from produced fluids in Shengli oilfield, Which oil degrading rate are up to 48%, 55% and 46% respectively. Strains JQ-1, JQ-2 are identified as Bacillus sp, JQ-3 as Acinetobacter sp. Comparing with single bacterium...
Article
The current state of biological treatment of wastewaters containing (hydrolyzed) polyacrylamides and produced in polymer-flooded oil fields is examined. The molecular mechanisms involved in degradation of polyacrylamides by different types of bacteria including total growth bacteria and sulfate reducing bacteria are presented. Ways to obtain polyac...
Article
The recent developments in viscosity reducing technologies for recovery of viscous crude oils are reviewed with emphases given to O/W emulsification and to functions of biosurfactants as a microbial means. The topics covered are: viscous oil reservoirs in China and abroad and their exploitation; constitution of viscous oils and reasons for their hi...
Article
An experimental study is conducted on the mechanisms involved in emulsification and viscosity reduction of heavy crude oils (HCO) by anionic surfactant SB-2. SB-2, developed for use in Shengli, is composed of fatty acids modified and multifunctional anionic surfactant in Na salt form. The thermal effect of emulsification of one HCO in SB-2 solution...
Article
The carbon solubility in Mn-Fe melts were measured at 1 350°C, 1 375°C, 1 425°C and 1 450°C, and accordingly the calculated equations were obtained. By thermodynamic derivation and calculation, some relationships between thermodynamic parameters for Mn-Fe melt and temperature were obtained.
Article
An anionic/nonionic mixed surfactant (mass ratio 7:3) in ≥ 30% aqueous solution, denoted as SB-3, was evaluated in laboratory for improving flowability of super-heavy crude in tubing of steam huff-puff wells of faulted block reservoir Shan-6 of Binnan, Shengli. The degassed and dehydrated crude taken from well Shan-6-12-X42 as crude sample had visc...
Article
The crude oil used for this study is a dehydrated and degassed extra-heavy oil from Shengli, which contains large amount of resin (47.99%) and asphaltene (9.13%), has pour point of 18°C and viscosity of 3.6 × 105 mPa-sec (30°C) and of 1.6 × 104 mPa-sec (50°C). The experiments on viscosity reduction through O/W emulsion formation are conducted under...
Article
With the simulation on the composition of converter steelmaking slags, the experiments of hot metal pretreatment by using CaO-SiO2-Fe2O3-MnO2-MgO-P2O5-Al2O3-CaF2 fluxes were performed in the laboratory scale. The results showed that the desiliconization rate of about 75 % and the dephosphorization rate of 80 % are achieved by using converter slags...
Article
The crude oil of slant well Zh-S139 is highly viscous. The mechanical lift of the produced liquid was performed in the recovery by cyclic steam injection. The newly developed emulsificator/viscosity reducer SB-2 was composed mainly of an anionic surfactant in ≥ 25% solution. Emulsions with viscosity < 200 mPa•sec were formed at 50°C, which keeps st...
Article
In a reservoir Chen-371 characterized by formation temperature 65°C, high viscosity, high resin/asphaltene content of produced crude, high TSD, and high Ca2+ + Mg2+ content in formation water, the phase inversion of the experimental crude/water emulsions was observed at water cut 36.7%. At 60°C and oil-to-water volume ratio 7:3, the factors affecti...
Article
The oxygen potential of ferromanganese melt can be measured by oxygen concentration cell using ZrO2 solid electrolyte stabilized by CaO (Mo-MoO2 as contrast electrode). The converted formula of oxygen potential and electromotive force is as follows: In p(O2) 20.03 - (69 548.8 + 46 127.7 X E) /T. The temperature of desiliconization is 1 350 degreesC...
Article
Experimental measurements of oxygen potential in liquid Mn of Mn-MnO2 equlibrium system (1350 °C) show that ZrO 2 (MgO) solid eletrolyte oxygen probe can be used to measure the oxygen potential in liquid Mn and ferromanganese melts. The relation between oxygen potential and electromotive force is In p O2=31.56-(69548.8+46427.7×E)/T. When BaCO 370%-...
Article
The experiments of rephosphorization controlling by using Li2O, Na2O, K2O, BaO instead of part of CaO in CaO-based fluxes were performed at 1 853 K in laboratory scale. The results indicated that thg dephosphorization ability of fluxes by adding different agents was decreased in following order: Li2O>Na2O>K2O>BaO. Using Li2O as adding agent to CaO-...
Article
The effect of oxygen potential on De-Si and De-P, and initial [Si] content on De-P during hot metal pretreatment were studied by Fe2O3-CaO-CaF2 slag. The results showed that the final [Si] content of 0.144 %-0. 090 % can be reached if the oxygen potential is controlled in the range 1. 64×10-4% to 3. 26×10-4%; when initial [Si] content in hot metal...
Article
The relation of L-P (the ratio P content in slag to P content in ferromanganese) and L-Mn (the ratio Mn content in slag to Mn content in ferromanganese) with C content [C] in ferromanganese were tested by means of the equilibrium experiments of P and Mn between ferromanganese and BaO-BaF2-MnO slag system. The results show that there exists in ferro...
Article
The solubilities of carbon in Mn-based alloys containing P have been measured at 1 400 degrees C based on X-C=0.271 9-0.094 0 X-Fe-1.195 4 X-P. BY means of thermodynamic derivation and calculation, the relative activity coefficients and interactive parameters were derived.

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