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Diversity of root-associated fungi of Vaccinium mandarinorum along a human disturbance gradient in subtropical forests,China

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Journal of Plant Ecology 2017年第1期10卷 56-66页

作者： Yanhua Zhang Jian Ni Fangping Tang Lifen Jiang Tianrong Guo kequan pei Lifu Sun Yu Liang College of Life Sciences Shaoxing UniversityShaoxingChina State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijingChina Department of Microbiology and Plant Biology University of Oklahoma101 David L.Boren Blvd.NormanOK 73019USA

Aims Ericaceous plant species can host diverse fungi in their roots,including ericoid mycorrhizal fungi(ERMF),endophytes,pathogens and some species with unknown ***,how this diversity of fungi responds to different human disturbances is not well *** In this study,we examined the effects of different human disturbance on fungal diversity in hair roots of Vaccinium mandarinorum,an ericaceous *** DNA was extracted from hair roots of *** and high-throughput sequencing was applied to detect the diversity of root-associated fungi along a human disturbance gradient in subtropical forests in Gutianshan National Nature Reserve(GNNR)in East *** four forest types with different disturbance regime were:old growth forest(OGF),secondary forest with once cut(SEC I),secondary forest with twice cut(SEC II)and Cunninghamia lanceolata plantation(PLF).Important Findings The results showed that:(i)diverse fungal operational units(OTUs)were detected in hair roots of *** in the four types of forests,covering fungal phyla of Ascomycota,Basidiomycota,Chytridiomycota,Glomeromycota and Zygomycota;(ii)Community composition of root-associated fungi of *** in PLF was distinct from those in the other three forest types,and two types of secondary forests had similar fungal community composition;(iii)Different fungal families respond differently to human disturbances:fungal families with significant preference to OGF were ectomycorrhizal or saprophytic fungi while fungal families with higher relative abundance in PLF were plant pathogenic or saprophytic fungi;(iv)The first principal component(PC1)of plant community had a significant effect on composition of root-associated fungal community,while edaphic parameters showed no significant effect on fungal community composition in roots of *** results help to better understand the responses of both ericaceous plants and their fungal partners to human disturbance

关键词： fungal diversity ericoid mycorrhizal fungi succession Vaccinium mandarinorum

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Diversity of arbuscular mycorrhizal fungal spore communities and its relations to plants under increased temperature and precipitation in a natural grassland

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Chinese Science Bulletin 2013年第33期58卷 4109-4119页

作者： SUN XiuFeng SU YuanYing ZHANG Ying WU MingYu ZHANG Zhe pei kequan SUN LiFu WAN ShiQiang LIANG Yu State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of Sciences State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of Sciences College of Life Sciences Shaoxing Universtiy

Arbuscular mycorrhizal fungi(AMF)form mutualisms with most plant species,and therefore,understanding how AMF communities will respond to climate change is essential for predictions of changes in plant *** evaluate the impact of global climate change on AMFs and plant-AMF interactions in a natural grassland in Inner Mongolia,both artificial warming and watering treatments were assigned to experimental *** results indicate that(1)warming and precipitation significantly affected the relative spore abundance of abundant sporulating AMF species;(2)the relative abundance of weak sporulating AMF species and AMF diversity decreased under experimental warming;(3)evidence was found that the composition of the AMF community in a given year might be correlated with plant community composition in the following year;and(4)grasses and forbs showing different preferences to Claroideoglomus etunicatum or Ambispora gerdemannii dominated *** results imply that climate change appears to induce changes in AMF assemblages with knock-on effects on grassland plant *** communities may play a much more important role than we have thought in the responses of ecosystem to global climate changes.

关键词：丛枝菌根真菌真菌孢子植物种类天然草场多样性降水社区全球气候变化

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银叶杜鹃和繁花杜鹃根部真菌的多样性

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生物多样性 2010年第1期18卷 76-82页

作者：郑钰高博孙立夫邴艳红裴克全中国科学院植物研究所植被与环境变化国家重点实验室北京100093 中国科学院研究生院北京100049 东北林业大学哈尔滨150040 绍兴文理学院浙江绍兴312000

植物根系与真菌形成菌根,在自然生态系统的物质能量循环中具有重要的生态功能。作者在四川省的中国杜鹃园选取银叶杜鹃(Rhododendron argyrophyllum)和繁花杜鹃(***),通过直接扩增杜鹃花根部真菌rDNA-ITS区片段,来揭示该地区杜鹃花属植... 详细信息

植物根系与真菌形成菌根,在自然生态系统的物质能量循环中具有重要的生态功能。作者在四川省的中国杜鹃园选取银叶杜鹃(Rhododendron argyrophyllum)和繁花杜鹃(***),通过直接扩增杜鹃花根部真菌rDNA-ITS区片段,来揭示该地区杜鹃花属植物根部真菌的多样性。ITS序列分析结果表明:从两种杜鹃的根部共检测到41个真菌分类单元,分别属于子囊菌纲的柔膜菌目(Helotiales)、散囊菌目(Eurotiales)、盘菌目(Pezizales)、假球壳目(Pleosporales)和担子菌纲的蜡壳耳目(Sebacinales)、伞菌目(Agaricales)、Erythrobasidiales、线黑粉菌目(Filobasidiales)。银叶杜鹃和繁花杜鹃根部真菌种类丰富,包括了杜鹃花类菌根真菌、外生菌根真菌和其他类型真菌,其中担子菌纲的蜡壳耳目和子囊菌纲的柔膜菌目占有较大比例。

关键词： Rhododendron 杜鹃花类菌根真菌多样性 ITS

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Remaining Life Prediction Method for Photovoltaic Modules Based on Two-Stage Wiener Process

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Energy Engineering 2025年第1期122卷 331-347页

作者： Jie Lin Hongchi Shen Tingting pei Yan Wu School of Electrical Engineering and Information Engineering Lanzhou University of TechnologyLanzhou730050China

Photovoltaic (PV) modules, as essential components of solar power generation systems, significantly influence unitpower generation *** service life of these modules directly affects these costs. Over time, the performanceof PV modules gradually declines due to internal degradation and external environmental *** cumulativedegradation impacts the overall reliability of photovoltaic power generation. This study addresses the complexdegradation process of PV modules by developing a two-stage Wiener process model. This approach accountsfor the distinct phases of degradation resulting from module aging and environmental influences. A powerdegradation model based on the two-stage Wiener process is constructed to describe individual differences inmodule degradation processes. To estimate the model parameters, a combination of the Expectation-Maximization(EM) algorithm and the Bayesian method is employed. Furthermore, the Schwarz Information Criterion (SIC) isutilized to identify critical change points in PV module degradation trajectories. To validate the universality andeffectiveness of the proposed method, a comparative analysis is conducted against other established life predictiontechniques for PV modules.

关键词： Photovoltaic modules degradation stochastic processes lifetime prediction

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杜鹃花菌根真菌454焦磷酸测序的样品制备

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东北林业大学学报 2014年第5期42卷 115-119页

作者：倪坚张艳华汤访评孙立夫裴克全薛煜绍兴文理学院绍兴312000 中国科学院植物研究所东北林业大学

454焦磷酸测序已成为真菌群落结构研究的常用手段,文中对454焦磷酸测序的Barcoded PCR扩增中的模板质量浓度、Mg2+和引物浓度等反应条件进行了优化,并对扩增所得产物的特异性进行了鉴定;同时就不同Taq酶对测序结果的影响进行了讨论。结... 详细信息

454焦磷酸测序已成为真菌群落结构研究的常用手段,文中对454焦磷酸测序的Barcoded PCR扩增中的模板质量浓度、Mg2+和引物浓度等反应条件进行了优化,并对扩增所得产物的特异性进行了鉴定;同时就不同Taq酶对测序结果的影响进行了讨论。结果表明:DNA模板经适度稀释能显著提高反应效率;Mg2+及引物浓度对扩增反应效率有影响,建议上下游引物浓度均为0.1μmol·L-1,Mg2+浓度可不做调整;使用特异性好、活性较强的Taq酶对保证扩增产物的真菌特异性至关重要,建议选用热启动Taq酶。

关键词：杜鹃花菌根真菌 454焦磷酸测序样品制备加接头的聚合链式反应优化

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The linear self-attracting diffusion driven by the weighted-fractional Brownian motion II: The parameter estimation

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Science China Mathematics 2025年

作者： Litan Yan Rui Guo Wenyi pei Department of Statistics College of Science Donghua University School of Statistics and Mathematics Zhejiang Gongshang University

Let Ba,bbe a weighted-fractional Brownian motion with Hurst indexes a and b such that a>-1and 0≤b<1∧（1+a）.In this paper,we consider the linear self-attracting diffusion ■ interacting diffusion (see Cranston and Le Jan （1995）).Under the continuous observation,we study asymptotic ■ converges in distribution to the sum of the chi-square random variable with 1 degree of freedom and the random variable Z1a,b.

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Depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 335-345页

作者： Feng Zhang Chenyang Zhang Linlin Wu Wei Sun Hongliang Zhang Jianhua Chen Yong pei Songjiang Li Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization Hunan International Joint Research Center for Efficient and Clean Utilization of Critical Metal Mineral ResourcesSchool of Minerals Processing and BioengineeringCentral South UniversityChangsha 410083China State Key Laboratory of Mineral Processing Beijing General Research Institute of Mining&MetallurgyBeijing 100160China Hunan Provincial Key Laboratory of Micro&Nano Materials Interfaces Science College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China School of Resources Environment and MaterialsGuangxi UniversityNanning 530004China Department of Chemistry Xiangtan UniversityXiangtan 411105China China Railway Resource Group Co.Ltd Beijing 102300China

The depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite still lacked in-depth ***,the depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite was further systematically investigated with experiments and density functional theory(DFT)*** X-ray photoelectric spectroscopy(XPS)results,DFT calculation results,and frontier molecular orbital analysis indicated that sulfite ions were difficult to be adsorbed on sphalerite surface,suggesting that sulfite ions achieved depression effects on sphalerite through other non-adsorption ***,the oxygen content in the surface of sphalerite treated with sulfite ions in creased,which enhanced the hydrophilicity of the sphalerite and further increased the difference in hydrophilicity between sphalerite and ***,sulfite ions were chelated with lead ions to form PbSO_(3)in *** hydrophilic PbSO_(3)was more easily adsorbed on sphalerite than *** interaction between sulfite ions and lead ions could effectively inhibit the activation of *** addition the UV spectrum showed that after adding sulfite ions,the peak of perxanthate in the sphalerite treated xanthate solution was significantly stronger than that in the galena with xanthate solution,indicating that xanthate interacted more readily with sulfite ions and oxygen mo lecules within the sphalerite system,leading to the formation of ***,sulfite ions hardly depressed the flotation of ga lena and could promote the flotation of galena to some *** study deepened the understanding of the depression mechanism o sulfite ions on sphalerite and Pb^(2+)activated sphalerite.

关键词： sphalerite galena sulfite ion density functional theory depression mechanism

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An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑Assisted Layer‑by‑Layer Processing in Organic Solar Cells

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Nano-Micro Letters 2025年第2期17卷 372-375页

作者： Shuai Xu Youdi Zhang Yanna Sun pei Cheng Zhaoyang Yao Ning Li Long Ye Lijian Zuo Ke Gao Key Laboratory of Advanced Green Functional Materials College of ChemistryChangchun Normal UniversityChangchun 130032People’s Republic of China Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion School of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237People’s Republic of China College of Polymer Science and Engineering Sichuan UniversityChengdu 610065People’s Republic of China State Key Laboratory and Institute of Elemento‑Organic Chemistry Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071People’s Republic of China Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Tianjin Key Laboratory of Molecular Optoelectronic Sciences School of Materials Science and EngineeringTianjin UniversityTianjin 300350People’s Republic of China State Key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China

Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer *** optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture *** approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.

关键词： Organic solar cells Additive-assisted layer-by-layer processing Three-dimensional fibril morphology Bulk p-i-n structure Optical management

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中国与欧洲高卢蜜环菌的遗传多样性

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生物多样性 2012年第2期20卷 224-230页

作者：孙立夫裴克全张艳华赵俊杨国亭秦国夫宋玉双宋瑞清绍兴文理学院生命科学学院浙江绍兴312000 中国科学院植物研究所植被与环境变化国家重点实验室北京100093 国家林业局森林病虫害防治总站沈阳110034 东北林业大学林学院哈尔滨150040

高卢蜜环菌(Armillaria gallica)为北半球广布种,不同大陆间的菌株遗传相似性和多样性水平能反映出该种在洲际大陆尺度上的地理遗传变异关系。作者用ISSR(inter-simple sequence repeat)分子标记技术,对从中国和欧洲收集到的高卢蜜环菌7... 详细信息

高卢蜜环菌(Armillaria gallica)为北半球广布种,不同大陆间的菌株遗传相似性和多样性水平能反映出该种在洲际大陆尺度上的地理遗传变异关系。作者用ISSR(inter-simple sequence repeat)分子标记技术,对从中国和欧洲收集到的高卢蜜环菌79个菌株进行了遗传多样性分析。用6个ISSR引物扩增得到210个位点,其中多态性位点(频率<0.95)为202个,占96.2%,平均每个引物多态位点多达33.6个,表明ISSR标记在蜜环菌中存在较高的多态性。根据非加权类平均法(UPGMA)聚类分析,中国53个菌株中的49个在0.773的相似性水平上聚成了中国类群(China group);而欧洲26个菌株遗传分化较大,分别在0.775和0.763的相似性水平上聚成了欧洲类群A(Europe group A)和B(Europe group B);2个欧洲类群间的相似性水平仅为0.738,而欧洲类群A与中国类群间的相似性却达到了0.770;两个大陆均有少数菌株表现出较为明显的遗传分化,个别菌株的种内遗传相似性甚至低于蜜环菌种间的遗传相似性。结果表明,中欧两个大陆间的***菌株因地理隔离已经表现出明显的遗传分化,处于异域物种形成过程中;欧洲大陆的菌株遗传分化更为明显,可能是两个大陆***菌株的起源地。

关键词： Armillaria gallica 遗传多样性遗传相似性聚类分析地理隔离

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Unraveling the impacts of intermolecular interaction on morphology evolution for highly efficient organic solar cells and modules

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Science China Chemistry 2025年第1期68卷 264-272页

作者： Xueqing Ma Yingying Cheng Yuqiang Liu Xinming Zheng Guangliu Ran Hongxiang Li Xinyue Cui Andong Zhang Wenkai Zhang pei Cheng Wenchao Huang Zhishan Bo Beijing Key Laboratory of Energy Conversion and Storage Materials College of Chemistry Beijing Normal University College of Textiles and Clothing State Key Laboratory of Bio-fibers and Eco-textiles Qingdao University Key State Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of Technology Department of Physics and Applied Optics Beijing Area Major Laboratory Center for Advanced Quantum Studies Beijing Normal University State Key Laboratory of Polymer Materials Engineering College of Polymer Science and Engineering Sichuan University

Understanding the effect of intermolecular interaction on the growth dynamic of active layers is critical for advancing organic solar cells(OSCs). However, the diverse structure of donors and acceptors makes the research challenging. Additives with customizable structures and properties could simplify this complexity. Herein, we meticulously tailor two additives of 3,4-ethylenedioxythiophene(EDOT) and 2,5-dibromo-3,4-ethylenedioxythiophene(DBEDOT), possessing distinct intermolecular interaction features to elaborate the inherent relationship. It is found that varied interaction strengths can alter film formation processes. The enhanced intermolecular interaction between the DBEDOT and non-fullerene acceptor BTP-e C9-4F results in pre-aggregation and longer crystallization duration of BTP-e C9-4F, facilitating the formation of films with compact molecular packing and decent phase separation. Thus, exciton dissociation and charge transport become more efficient. Finally, devices processed with DBEDOT exhibit a remarkable power conversion efficiency of 19.35% in small-area OSCs and 14.11% in bladecoated 5 cm × 5 cm organic solar mini-modules. Especially, OSCs can maintain 80% of their initial efficiency after continuous annealing at 85 °C for over 2,100 h.

关键词： organic solar cell non-fullerene acceptor film growth molecular packing intermolecular interaction

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