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杭白菊干制工艺优化及产品商品性评价

山西农业科学 2019年第3期47卷 460-465页

作者：公菲菲闫珂熊雄薛晋轩武琳亢秀萍李森山西农业大学园艺学院山西太谷030801 山西省设施园艺工程技术研究中心山西太谷030801

为了优化干制杭白菊的方法,设置了10种干制工艺,并对3种形态杭白菊进行了商品性评价。结果表明,800 W微波炉高火杀青3 min+烘干4 h(45℃)对花瓣完全舒展的杭白菊干制效果最好;800 W微波炉高火杀青3 min+晾干2 d对花瓣舒展平直、花心有70... 详细信息

为了优化干制杭白菊的方法,设置了10种干制工艺,并对3种形态杭白菊进行了商品性评价。结果表明,800 W微波炉高火杀青3 min+烘干4 h(45℃)对花瓣完全舒展的杭白菊干制效果最好;800 W微波炉高火杀青3 min+晾干2 d对花瓣舒展平直、花心有70%～80%成散开的杭白菊干制效果最好;800 W微波炉中低火干燥7 min对花瓣直立、未舒展的杭白菊干制效果最好。该3种干制方法获得的杭白菊干制产品形态整齐,品质优良,花瓣不易掉落,泡茶后茶水汤色通透、馨香扑鼻、口感甘醇,后期储藏没有霉变,干制时间合适,有效成分含量较高,可用于中试生产。此外,花瓣舒展平直、花心有70%～80%散开的杭白菊泡茶后感官评价效果最佳,建议采摘时以该阶段为主要收获对象。

关键词：杭白菊干制工艺感官评价商品性

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山西省景观温室植物种类及应用调查

山西农业科学 2018年第6期46卷 1005-1008页

作者：尹冬冬李薇王金耀公菲菲邢国明山西农业大学园艺学院山西省设施蔬菜提质增效协同创新中心山西太谷030801 山西省沁源县园林管理中心山西沁源046000

为了提高山西省景观温室植物配置水平,提升景观温室运营效益,对山西省11个地市景观温室的植物种类、观赏特性以及应用频度进行了实地调查和分析。结果表明,山西省11个景观温室共有植物303种,隶属于89科204属,其中,观叶植物占比最大,达73... 详细信息

为了提高山西省景观温室植物配置水平,提升景观温室运营效益,对山西省11个地市景观温室的植物种类、观赏特性以及应用频度进行了实地调查和分析。结果表明,山西省11个景观温室共有植物303种,隶属于89科204属,其中,观叶植物占比最大,达73.02%,其次是观花植物,占比36.19%;在植物应用频度方面,出现频度最高的是龙血树,频度在61%~80%的有6种植物。在调查分析的基础上,提出了植物选择的建议,以期为山西省景观温室的建设提供借鉴。

关键词：景观温室植物种类观赏特性植物应用

The superhydrophobic sponge decorated with Ni-Co double layered oxides with thiol modification for continuous oil/water separation

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Chinese Journal of Chemical Engineering 2023年第2期54卷 296-305页

作者： Xiaodong Yang Na Yang Ziqiang gong feifei Peng Bin Jiang Yongli Sun Luhong Zhang School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China

In this paper, the superhydrophobic polyurethane sponge(SS-PU) was facilely fabricated by etching with Jones reagent to bind the nanoparticles of Ni-Co double layered oxides(LDOs) on the surface, and following modification with n-dodecyl mercaptan(DDT). This method provides a new strategy to fabricate superhydrophobic PU sponge with a water contact angle of 157° for absorbing oil with low cost and in large scale. It exhibits the strong absorption capacity and highly selective characteristic for various kinds of oils which can be recycled by simple squeezing. Besides, the as-prepared sponge can deal with the floating and underwater oils, indicating its application value in handling oil spills and domestic oily wastewater. The good self-cleaning ability shows the potential to clear the pollutants due to the ultralow adhesion to water. Especially, the most important point is that the superhydrophobic sponge can continuously and effectively separate the oil/water mixture against the condition of turbulent disturbance by using our designed device system, which exhibit its good superhydrophobicity, strong ***, the SS-PU still maintained stable absorption performance after 150 cycle tests without losing capacity obviously, showing excellent durability in long-term operation and significant potential as an efficient absorbent in large-scale dispose of oily water.

关键词： Superhydrophobic sponge Ni-Co double layered oxides Thiol modification Oil absorption Oil/water separation

十年禁渔初期金沙江干流鱼类群落结构及物种多样性

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中国水产科学 2024年第3期31卷 286-300页

作者：王忠原朱挺兵胡飞飞龚进玲郭祉宾李学梅杨德国上海海洋大学水产与生命学院中国水产科学研究院长江水产研究所农业农村部淡水生物多样性保护重点实验室

基于金沙江干流2022年5月至2023年11月6个站位(岗托、奔子栏、石鼓、攀枝花、巧家、绥江)的渔获物调查数据,分析鱼类群落组成现状、优势种特征、群落多样性的时空分布,提出金沙江干流鱼类的保护措施。研究结果显示,共采集到鱼类68种,隶... 详细信息

基于金沙江干流2022年5月至2023年11月6个站位(岗托、奔子栏、石鼓、攀枝花、巧家、绥江)的渔获物调查数据,分析鱼类群落组成现状、优势种特征、群落多样性的时空分布,提出金沙江干流鱼类的保护措施。研究结果显示,共采集到鱼类68种,隶属于4目15科48属,其中鲤形目鱼类最多(51种),占总种数的75.0%,国家级保护鱼类5种,外来鱼类7种;生态类型主要为杂食性、底栖性和定居性鱼类,分别占66.18%、44.12%和72.06%;群落优势种为鲢(Hypophthalmichthys molitrix)、齐氏罗非鱼(Coptodon zillii)和长丝裂腹鱼(Schizothorax dolichonema);鱼类群落的Shannon-Wiener多样性指数(H')、Simpson多样性指数(D')、Peilou均匀度指数(J')和Margalef丰富度指数(R')的变化范围分别为1.376～2.012、0.646～0.816、0.574～0.797和1.149～2.870,经ANOVA分析检验, 4个多样性指数的时间差异不显著(P>0.05),而空间差异明显(P<0.05);ABC曲线分析结果表明,生物量曲线在丰度曲线上方,W统计值为正值,表明群落受到的扰动较小,但与历史记录相比,鱼类种类和生态类型均有一定变化;2022—2023年的属间-科间多样性指数(genus-familydiversityindex,G-F)由0.29降低为0.19,但物种数相对增多;聚类分析和NMDS排序分析结果表明,金沙江干流河段鱼类群落分成2组:岗托、奔子栏、石鼓为一组;巧家、攀枝花、绥江为一组;相似性百分比(SIMPER)分析表明,不同季度之间的鱼类群落物种组成差异显著,主要分歧种为张氏?(Hemicultertchangi)和中华鳑鲏(Rhodeussinensis)。作为禁渔后开展的系统调查,本研究结果可为长江禁捕效果评估提供基准。建议在加强禁渔管理的同时,监测外来种种群动态,以及开展干支流生境修复等措施保护金沙江鱼类多样性。

关键词：金沙江干流鱼类种类组成群落结构物种多样性

Promotion of Arabidopsis immune responses by a rhizosphere fungus via supply of pipecolic acid to plants and selective augment of phytoalexins

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Science China(Life Sciences) 2023年第5期66卷 1119-1133页

作者： feifei Luo Guirong Tang Song Hong Tianyu gong Xiu-Fang Xin Chengshu Wang Key Laboratory of Insect Developmental and Evolutionary Biology CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China National key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China School of Life Science and Technology ShanghaiTech UniversityShanghai 201210China

The ascomycete insect pathogenic fungi such as Metarhizium species have been demonstrated with the abilities to form the rhizosphere or endophytic relationships with different plants for nutrient *** this study,after the evident infeasibility of bacterial disease development in the boxed sterile soils,we established a hydroponic system for the gnotobiotic growth of Arabidopsis thaliana with the wild-type and transgenic strain of Metarhizium *** transgenic fungus could produce a high amount of pipecolic acid(PIP),a pivotal plant-immune-stimulating *** inoculation experiments showed that *** could form a non-selective rhizosphere relationship with *** to the PIP uptake by plants after exogenous application,PIP level increased in Col-0 and could be detected in the PIP-non-producing Arabidopsis mutant(ald1)after fungal inoculations,indicating that plants can absorb the PIP produced by *** transgenic fungal strain had a better efficacy than the wild type to defend plants against the bacterial pathogen and aphid *** to ald1,fmo1 plants could not be boosted to resist bacterial infection after *** fungal inoculations,the phytoalexins camalexin and aliphatic glucosinolate were selectively increased in Arabidopsis via both PIP-dependent and-independent *** study unveils the potential mechanism of the fungus-mediated beneficial promotion of plant immunity against biological *** data also highlight the added values of *** to plants beyond the direct suppression of insect pest populations.

关键词： Metarhizium robertsi rhizosphere fungus pipecolic acid camalexin aliphatic glucosinolate plant defenses

Synthesis and properties of PdO/CeO2-A12O3 catalysts for methane combustion

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Frontiers of Chemical Science and Engineering 2012年第1期6卷 34-37页

作者： Xianyun LIU Jianzhou LIU feifei GENG Zhanku LI Ping LI Wanli gong School of Chemical Engineering and Technology China University of Mining and TechnologyXuzhou 221116China

This study focuses on the loading of catalytic materials, e.g., palladium on the surface of supporting materials, with the aim to obtain catalysts with high activity for methane combustion. The catalyst PdO/CeO2- A12O3 was prepared by impregnation under ultrasonic condition. The effect of different activation methods on the activity of catalysts for methane catalytic combustion was tested. The properties of reaction and adsorption of oxygen species on catalyst surface were characterized by 1-12- temperature programmed reduction （H2-TPR）, and 02- temperature programmed desorption （O2-TPD）. Further- more, the sulfur tolerance and sulfur poisoning mode were investigated. The results indicate that the catalyst PdO/ CeO2-A12O3 activated with rapid activation shows higher activity for methane combustion and better sulfur toler- ance. The result of sulfur content analysis shows that there is a large number of sulfur species on the catalyst＇s surface after reactivation at high temperature. It proves that the activity of catalysts cannot be fully restored by high- temperature reactivation.

关键词： ultrasonic methane combustion sulfurpoisoning

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不同基质对杭白菊和金丝皇菊扦插生根的影响

山西农业科学 2021年第1期49卷 54-58,92页

作者：张玲玲公菲菲原喆亢秀萍王军娥李森山西农业大学园艺学院山西太谷030801 山西省设施园艺工程技术中心山西太谷030801

以杭白菊和金丝皇菊2种茶用菊为试验材料,研究了5种基质(珍珠岩、细沙、蛭石、细沙+园土(1∶1)和珍珠岩+园土(1∶1))和生根粉处理对2种茶用菊扦插生根的影响,旨在为茶用菊的规模化生产提供参考。结果表明,基质和生根粉之间不存在交互效... 详细信息

以杭白菊和金丝皇菊2种茶用菊为试验材料,研究了5种基质(珍珠岩、细沙、蛭石、细沙+园土(1∶1)和珍珠岩+园土(1∶1))和生根粉处理对2种茶用菊扦插生根的影响,旨在为茶用菊的规模化生产提供参考。结果表明,基质和生根粉之间不存在交互效应,基质类型是不同处理中影响2种茶用菊生根的主要因素,生根粉只对2种茶用菊的个别指标有显著影响,不同基质对扦插生根的指标均有显著影响;隶属函数值表明2种茶用菊在珍珠岩+园土(1∶1)中生根效果好,其次是蛭石、珍珠岩、细沙、园土+细沙(1∶1)。在生产中建议以珍珠岩+园土(1∶1)作为扦插基质,并用生根粉处理,可以得到根系健壮的繁殖材料。

关键词：基质茶用菊扦插繁殖隶属函数

基于网络药理学探讨桑杜防治家禽传染性法氏囊病的作用机制

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中国畜牧兽医 2024年第1期51卷 392-406页

作者：荣巧刘进德程永婷王一楠龚柳菲李琳孙菲菲安徽农业大学动物科技学院合肥230036

【目的】本研究运用网络药理学、分子对接和分子动力学模拟方法研究桑叶和杜仲防治传染性法氏囊病(IBD)的作用机制,旨在为防治免疫抑制和传染性法氏囊病的新兽药研发提供思路。【方法】通过中药系统药理学数据库与分析平台(TCMSP)和Swis... 详细信息

【目的】本研究运用网络药理学、分子对接和分子动力学模拟方法研究桑叶和杜仲防治传染性法氏囊病(IBD)的作用机制,旨在为防治免疫抑制和传染性法氏囊病的新兽药研发提供思路。【方法】通过中药系统药理学数据库与分析平台(TCMSP)和SwissTargetPrediction数据库收集桑叶和杜仲的活性成分和靶点,利用GeneCards和GEO数据库获得传染性法氏囊病相关靶点。基于Cytoscape 3.7.2软件构建活性成分-靶点网络图。将药物靶点与疾病靶点取交集后得到共同靶点,基于STRING数据库和Cytoscape 3.7.2软件构建蛋白相互作用(PPI)网络图。使用DAVID数据库对交集靶点进行GO功能和KEGG通路富集分析。利用AutoDock 1.5.6和PyMOL软件进行分子对接,使用Gromacs 2020.6软件进行分子动力学模拟。【结果】筛选得到桑叶和杜仲53个有效活性成分,423个潜在作用靶点,5 949个传染性法氏囊病相关靶点,153个交集靶点。PPI显示,关键靶点主要包括白介素-6(IL6)、连环蛋白-β1(CTNNB1)、原癌基因酪氨酸-蛋白激酶(SRC)、IL1B、血管内皮生长因子(VEGFA)等。GO功能和KEGG信号通路富集分析结果显示,桑叶和杜仲可通过对IL18的反应、干扰素-γ(IFN-γ)受体结合、钙信号通路、神经活性配体-受体相互作用等发挥防治传染性法氏囊病的作用。分子对接和分子动力学模拟结果均表明关键活性成分和关键靶点之间具有良好的亲和力,结合稳定。【结论】桑叶和杜仲可能通过槲皮素、去氢双丁香酚、二十碳-11,14,17-三烯酸甲酯、山柰酚、β-谷甾醇等重要活性成分作用于IL6、CTNNB1、SRC、IL1B、VEGFA等关键靶点,通过对IL18的反应、钙信号通路、神经活性配体-受体相互作用等途径发挥对鸡传染性法氏囊病的防治作用。

关键词：桑叶杜仲传染性法氏囊病网络药理学分子对接分子动力学模拟

Psoralen inhibits hepatitis B viral replication by down-regulating the host transcriptional machinery of viral promoters

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Virologica Sinica 2022年第2期37卷 256-265页

作者： Xinna Ma Heng Li Ying gong feifei Liu Xiankun Tong Fenghua Zhu Xiaoqian Yang Li Yang Jianping Zuo Laboratory of Immunology and Virology Shanghai University of Traditional Chinese MedicineShanghai201203China Laboratory of Immunopharmacology State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of SciencesShanghai201203China University of Chinese Academy of Sciences Beijing100049China

The hepatitis B virus(HBV) is a global public health challenge due to its highly contagious nature. It is estimated that almost 300 million people live with chronic HBV infection annually. Although nucleoside analogs markedly reduce the risk of liver disease progression, the analogs do not fully eradicate the virus. As such, new treatment options and drugs are urgently needed. Psoralen is a nourishing monomer of Chinese herb and is known to inhibit virus replication and inactivate viruses. In this study, we evaluated the potential of psoralen as an anti-HBV *** PCR and Southern blot analysis revealed that psoralen inhibited HBV replication in Hep G2.2.15 cells in a concentration-dependent manner. Moreover, psoralen was also active against the 3TC/ETV-dual-resistant HBV mutant. Further investigations revealed that psoralen suppressed both HBV RNA transcription and core protein expression. The transcription factor FOXO1, a known target for PGC1α co-activation, binds to HBV precore/core promoter enhancer II region and activates HBV RNA transcription. Co-immunoprecipitation showed that psoralen suppressed the expression of FOXO1, thereby decreasing the binding of FOXO1 co-activator PGC1αto the HBV promoter. Overall, our results demonstrate that psoralen suppresses HBV RNA transcription by downregulating the expression of FOXO1 resulting in a reduction of HBV replication.

关键词： Psoralen Hepatitis B virus(HBV) Forkhead box-O1(FOXO1) PPARγco-activator 1α(PGC1α) Transcription