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Journal of Integrative Plant Biology 2006年第11期48卷 1294-1299页

作者： jiang-yun gao Zi-Hui Yang Pan-Yu Ren Qing-Jun Li Xishuangbanna Tropical Botanical Garden the Chinese Academy of Sciences Mengla Yunnan 666303 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China

Rhynchanthus beesianus W. W. Smith （Zlnglberaceae） Is an eplphytlc tropical ginger with a very conspicuous floral display, but almost no fruit set under field conditions. The reproductive ecology encompassing phenology, floral biology, and pollination and breeding systems was Investigated In an evergreen broadleaved forest In yunnan Province, Southwest China. The flowers possess a typical bird pollination syndrome, but no effective pollinators were observed during 138 h of observation. Female Black-breasted Sunbird （Aethopyga saturata） and bumblebees visited R. beesianus regularly, but they all played roles as nectar robbers. No fruit was found In the bagging treatment, and fruit set following manual self-pollination （（57.55 ± 4.08）%） was comparable with cross-pollination （（64.32 ± 4.42）%）, suggesting that R. beeslanus is self-compatible but spontaneous self-pollination In this species does not occur. Seed set of open-pollination （（26.42 ± 3.11）%） was significantly lower than manual self-pollination （（73.41± 4.16）%） and cross-pollination （（75.56 ± 4.52）%）, confirming that R. beeslanus was dependent on animals for fertilization and suffered a serious pollinator-limitation.

关键词： breeding system floral biology pollinator-limitation Rhynchanthus beesianus Zingiberaceae

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大而显著的苞片影响了笋兰的繁殖成功

Journal of Plant Ecology 2024年第1期17卷 50-56页

作者： Shi-Mao Wu jiang-yun gao Institute of Biodiversity School of Ecology and Environmental ScienceYunnan UniversityKunmingYunnan 650500China

在被子植物中,多样的花部特征是为了适应各种选择压力和生态功能。到目前为止,对兰科植物花部特征的生态功能研究主要集中在唇瓣,而从未有对苞片的研究。本研究以一种熊蜂授粉并且提供花蜜报酬的地生或附生兰科植物笋兰(Thunia alba)为... 详细信息

在被子植物中,多样的花部特征是为了适应各种选择压力和生态功能。到目前为止,对兰科植物花部特征的生态功能研究主要集中在唇瓣,而从未有对苞片的研究。本研究以一种熊蜂授粉并且提供花蜜报酬的地生或附生兰科植物笋兰(Thunia alba)为研究材料,其大而显著形似舟状的苞片包裹着花蜜距和花梗。我们猜想显著的大苞片能够保护蜜距,抵御盗蜜者。为了验证这一假设,我们通过实验去除苞片,记录传粉者和盗蜜者访花行为的变化,并评估了它们对笋兰繁殖成功的影响。研究结果表明,当苞片被去除后,唯一的传粉者短头熊蜂(Bombus breviceps)转变为盗蜜者,并且被盗蜜的花的比例也显著增加。无论是花苞片被去除的处理组还是未处理的对照组,笋兰都是受传粉者限制的。去除苞片对传粉者的访花频率并没有影响,但是显著降低了笋兰雄性和雌性的繁殖成功率。本研究表明,在复杂的授粉限制的环境压力下,大而显著的苞片可以防止花被盗蜜者盗蜜从而提高笋兰的整体适合度。

关键词：苞片传粉者盗蜜繁殖成功笋兰(Thunia alba) 短头熊蜂(Bombus breviceps)

Multipartite oil-flower/oil-bee mutualisms involving male-bee-pollinated orchids in tropical Asia

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National Science Review 2024年第5期11卷 105-107页

作者： Meng Zhang Li-Bing Jia Susanne S.Renner Zhi-Xi Tian Xiao-An Wang jiang-yun gao Yi-Bo Luo Antonio J.C.Aguiar Huan-Li Xu Shuang-Quan Huang Institute of Evolution and Ecology School of Life Sciences Central China Normal University Department of Biology Washington University State Key Laboratory for Conservation and Utilization of Bio-resources in yunnan Yunnan University State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Department of Zoology University of Brasília Department of Entomology College of Plant Protection China Agricultural University

Most animal-pollinated flowers offer nectar or pollen as a reward to their pollinators. A small fraction, however, have switched to other rewards, such as fatty oils offered in glandular hairs or just below the epidermis. This type of reward has evolved in some 150 genera in at least 11 families, including South American and African Orchidaceae [1,2]. Oiloffering flowers are exploited by a few hundred species of oil-collecting bees in temperate and tropical biomes on all continents except Antarctica [1,2]. Oil bees depend obligatorily on floral oil for cell lining and as larval food [3,4], which is why oil collecting usually is confined to female bees.

关键词： asia involving male multipartite mutualisms oil-flower orchids pollinated tropical

The effectiveness of different mycorrhizal fungi on seed germination in Pleione bulbocodioides:a traditional Chinese medicinal orchid

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The effectiveness of different mycorrhizal fungi on seed ger...

Targeting capabilities of engineered extracellular vesicles for the treatment of neurological diseases

中国菌物学会2023年学术年会

作者： Jing Yang Neng-Qi Li jiang-yun gao Institute of Biodiversity School of Ecology and Environmental ScienceYunnan University

In recent years,the use of orchid mycorrhizal fungi to promote orchid restoration projects isconsidered to be an effective method for orchid *** this study,we tried to obtain effectivefungi for seed germination by using seed symbiotic germination technology and used ex situ seedbaiting to isolate fungi to assist seed germination in Pleione *** is called ’bing-qiu-zi’ in the folk,which is a very important traditional Chinese medicine in ***,thewild resources are almost extinct,and the artificial cultivation industry is not yet *** selectedfour fungi to carry out symbiotic germination experiments:Two strains of Tulasnella from twoterrestrial orchids ***01 from Paphiopedilum spicerianum and Agp-1 from Arundina *** strains of Sebacinales,strain LQ from Dendrobium officinale and Piriformospora indica(PI) was isolated from Indian desert *** 58 days of ex situ seed baiting,the germinatedprotocorm was successfully obtained,and the ZK strain of Meruliaceae was isolated from the *** isolated ZK strain and the above four fungi were symbiotically germinated with the seeds of *** on Oatmeal Agar to test the effectiveness of different mycorrhizal fungi on *** the same time,no inoculation was set as a control treatment,and MS medium wasasymbiotic germination culture.90 days after incubation,all treatments had a high germination rate,indicating that there was no strong fungal specificity in the seed germination *** addition,thetreatments of the two Tulasnella strains failed to reach the seedling *** seedling development of ZK treatment reached 29.37±4.71% after 90 days of *** two strains of Sebacinales canalso effectively promote the germination and growth of the seeds to the seedling stage,and the seedlingdevelopment of LQ treatment was 34.83±3.39%,and the PI treatment was 27.59±3.45%.Our resultscan provide a new idea for the direc

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Neural Regeneration Research 2025年第11期20卷 3076-3094页

作者： Xinyu Yang Xiangyu gao Xiaofan jiang Kangyi Yue Peng Luo Department of Neurosurgery Xijing HospitalFourth Military Medical UniversityXi’anShaanxi ProvinceChina

Recent advances in research on extracellular vesicles have significantly enhanced their potential as therapeutic agents for neurological *** to their therapeutic properties and ability to cross the blood–brain barrier,extracellular vesicles are recognized as promising drug delivery vehicles for various neurological conditions,including ischemic stroke,traumatic brain injury,neurodegenerative diseases,glioma,and ***,the clinical application of natural extracellular vesicles is hindered by their limited targeting ability and short clearance from the *** address these limitations,multiple engineering strategies have been developed to enhance the targeting capabilities of extracellular vesicles,thereby enabling the delivery of therapeutic contents to specific tissues or ***,this review aims to highlight the latest advancements in natural and targeting-engineered extracellular vesicles,exploring their applications in treating traumatic brain injury,ischemic stroke,Parkinson's disease,Alzheimer's disease,amyotrophic lateral sclerosis,glioma,and ***,we summarized recent clinical trials involving extracellular vesicles and discussed the challenges and future prospects of using targeting-engineered extracellular vesicles for drug delivery in treating neurological *** review offers new insights for developing highly targeted therapies in this field.

关键词： Alzheimer's disease amyotrophic lateral sclerosis engineered extracellular vesicles glioma ischemic stroke neurological diseases Parkinson's disease psychosis targeted drug delivery traumatic brain injury

YF_3∶Yb,Er,Tm纳米晶:低温固相制备及上转换发光性能

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化工新型材料 2016年第10期44卷 73-75,78页

作者：钟诚蒋芸赖欣高道江毕剑达州职业技术学院基础部达州635001 四川师范大学化学与材料科学学院成都610066

采用低温固相法制备了镱离子(Yb^(3+))、铒离子(Er^(3+))、铥离子(Tm^(3+))共掺杂的氟化钇(YF3)纳米晶,研究了煅烧温度及时间对样品微结构和发光性能的影响。结果表明:煅烧温度对YF3纳米晶的晶相结构、形貌进而发光性能具有重要的影响... 详细信息

采用低温固相法制备了镱离子(Yb^(3+))、铒离子(Er^(3+))、铥离子(Tm^(3+))共掺杂的氟化钇(YF3)纳米晶,研究了煅烧温度及时间对样品微结构和发光性能的影响。结果表明:煅烧温度对YF3纳米晶的晶相结构、形貌进而发光性能具有重要的影响。随着煅烧温度的上升,样品晶化完全,可获得纯正交相的YF3纳米晶,样品颗粒变大,发光强度增大,但过高的煅烧温度会使样品产生杂相,颗粒急剧增大,发光强度反而降低。在相同的煅烧温度下,煅烧时间对样品的微结构和发光性能的影响甚微。在980nm红外光激发下,样品的可见光发射由478nm的蓝光带、548nm的绿光带及657nm的红光带组成。通过样品发光强度与激发功率的关系,分析了其可能的上转换发光机制。

关键词：固相反应煅烧温度上转换 YF3 NH4HF2

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基于核心素养的初中生物实验教学研究

当代教研论丛 2024年第1期10卷 64-67页

作者：江运高贵州省威宁县小海中学贵州毕节553100

核心素养指向学生学科学习应具备的品格与关键能力。基于核心素养开展初中生物实验教学活动,有益于促进学生综合发展。文章分析了初中生物学科核心素养的内涵及其教育价值,并结合实际教学案例对初中生物实验教学策略展开研究,指出教师... 详细信息

核心素养指向学生学科学习应具备的品格与关键能力。基于核心素养开展初中生物实验教学活动,有益于促进学生综合发展。文章分析了初中生物学科核心素养的内涵及其教育价值,并结合实际教学案例对初中生物实验教学策略展开研究,指出教师可通过革新教学观念、整合实验教学资源、组织实验教学活动、优化实验教学评价等方式培养学生核心素养,进而提升初中生物实验教学质量。

关键词：核心素养初中生物实验教学策略

Genes and proteins expressed at different life cycle stages in the model protist Euplotes vannus revealed by both transcriptomic and proteomic approaches

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Science China Life Sciences 2025年第1期 232-248页

作者： Yaohan jiang Xiao Chen Chundi Wang Liping Lyu Saleh A.Al-Farraj Naomi A.Stover Feng gao Key Laboratory of Evolution & Marine Biodiversity (Ministry of Education) and Institute of Evolution & Marine Biodiversity Ocean University of China Marine College Shandong University Zoology Department College of ScienceKing Saud University Department of Biology Bradley University Laboratory for Marine Biology and Biotechnology Qingdao Marine Science and Technology Center

Sexual reproduction first appeared in unicellular protists and has continued to be an essential biological process in almost all *** protists, which contain both germline and somatic genomes within a single cell, have evolved a special form of sexual reproduction called conjugation that involves mitosis, meiosis, fertilization, nuclear differentiation, genome rearrangement, and the development of unique cellular structures. The molecular basis and mechanisms of conjugation vary dramatically among ciliates, and many details of the process and its regulation are still largely unknown. In order to better comprehend these processes and mechanisms from an evolutionary perspective, this study provides the first comprehensive overview of the transcriptome and proteome profiles during the entire life cycle of the newly-established marine model ciliate Euplotes vannus. Transcriptome analyses from 14 life cycle stages(three vegetative stages and 11 sexual stages) revealed over 26,000 genes that are specifically expressed at different stages, many of which are related to DNA replication,transcription, translation, mitosis, meiosis, nuclear differentiation, and/or genome rearrangement. Quantitative proteomic analyses identified 338 proteins with homologs associated with conjugation and/or somatic nuclear development in other ciliates, including dicer-like proteins, Hsp90 proteins, RNA polymerase Ⅱ and transcription elongation factors, ribosomal-associated proteins, and ubiquitin-related proteins. Four of these homologs belong to the PIWI family, each with different expression patterns identified and confirmed by RT-qPCR,which may function in small RNA-mediated genome rearrangement. Proteins involved in the nonhomologous end-joining pathway are induced early during meiosis and accumulate in the developing new somatic nucleus, where more than 80% of the germline sequences are eliminated from the somatic genome. A number of new candidate genes and proteins likely t

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Local magnetic moment oscillation around an Anderson impurity on graphene

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 192-201页

作者： Shuai Li Zhen Ma Jin-Hua gao School of Science Hebei University of Science and Technology School of Electronics and Information Zhengzhou University of Light Industry School of Physics and Wuhan National High Magnetic Field Center Huazhong University of Science and Technology

We theoretically investigate the spin resolved Friedel oscillation （FO） and quasiparticle interference （QPI） in graphene induced by an Anderson *** the impurity becomes magnetic,the resulted FO becomes spin dependent,which gives rise to a local magnetic moment oscillation with an envelop decaying as r-2in real space in the doping ***,at half filling,the electron density and local magnetic moment will not oscillate but decay as *** spin resolved FO has both sublattice and spin ***,the local magnetic moment decay at half filling only occurs at one sublattice of graphene,which is quite like the phenomenon observed in the STM experiment (***ález-Herrero et al.,Science 352,437 （2016）).We further give an analytic formula about such spin dependent FO based on the stationary phase ***,we study the interference of quasiparticles around the magnetic impurity by calculating the spin dependent Fourier-transformed local density of states （FT-LDOS）.Our work gives a comprehensive understanding about the local magnetic moment oscillation around an Anderson impurity on graphene.

关键词： Friedel oscillation local magnetic moment graphene Anderson impurity

基于知识图谱技术的计算机网络链路漏洞检测研究

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现代电子技术 2025年第1期48卷 97-101页

作者：辛瑞雯高云山西大学山西太原030006 山西大同大学计算机与网络工程学院山西大同037009

计算机网络链路的漏洞信息具有类型复杂、来源广及数量庞大等特点,导致此类漏洞的威胁判断尤为困难。知识图谱技术具有数据整合及统一表示特性,可以统一结构化整合呈现复杂特点的漏洞信息,为此,文中提出基于知识图谱技术的计算机网络链... 详细信息

计算机网络链路的漏洞信息具有类型复杂、来源广及数量庞大等特点,导致此类漏洞的威胁判断尤为困难。知识图谱技术具有数据整合及统一表示特性,可以统一结构化整合呈现复杂特点的漏洞信息,为此,文中提出基于知识图谱技术的计算机网络链路漏洞检测方法。收集计算机网络链路的各种数据源漏洞信息,抽取其中的漏洞实体知识与关系知识,构建网络链路漏洞知识图谱。运用卷积神经网络模型学习该知识图谱中的漏洞知识,通过训练后的模型实现网络链路漏洞检测。结果显示,该方法可针对包含不同类型、数量链路漏洞的工况,实现漏洞知识图谱的构建,并且漏洞威胁检测精度始终保持在90%以上。因此,说明所研究检测方法的检测结果精准可靠,可为计算机网络链路数据安全传输提供保障。

关键词：知识图谱计算机网络链路漏洞漏洞实体知识关系知识知识抽取网络安全