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Science china Technological Sciences 2025年

作者： Jing LI Bo LI Ziqi LIAO Yunhui DUAN Xinglan FU Yuehua HUANG Guanglin LI College of Engineering and Technology Southwest University Modern Agricultural Equipment Research Institute Xihua University

Respiratory rate monitoring is of great significance in pig healthy breeding for the early detection and timely prevention of respiratory diseases. Humidity sensing is an important noncontact method to monitor pig respiration, which does not cause direct harm to pigs and meets the requirements of animal welfare. This paper proposes a humidity sensor based on graphene oxide wrapped-silica microspheres （GO@SiO2）. First, the sensor shows fast response/recovery performances of0.24/0.73 s. Experiments demonstrate that the wrapped microsphere structure can inhibit water aggregation. It is speculated that the wrapped microsphere structure can inhibit the stacking of GO, and its curved surface can promote the evaporation of water molecules. Second, the sensor shows a high sensitivity of 1.2%/%RH–4.2%/%RH in 11%–95%RH range. This can be attributed to different sensing mechanisms, from hopping transport to increasing ion transport, leading to a significant change in the sensor’s resistance. Third, the sensor shows selectivity to water molecules due to the hydrophilic characteristic of GO and the significant increase in conductivity by ion transport. Finally, the sensor is applied to realize the respiratory rate monitoring of adult pigs and piglets.

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Monoterpenoid indole alkaloids from Alstonia rostrata

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Natural Products and Bioprospecting 2012年第3期2卷 121-125页

作者： Mei-Fen BAO Chun-Xia ZENG Yan QU Ling-Mei KONG Ya-Ping LIU Xiang-Hai CAI Xiao-Dong LUO State Key Laboratory of Phytochemistry and Plant Resources in West china Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China southwest china germplasm bank of wild species Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Graduate University of Chinese Academy of Sciences Beijing 100049China

Four new monoterpenoid indole alkaloids,alstrostines C-F together with thirteen known alkaloids were isolated from the leaves and twigs of Alstonia *** structures of new compounds were elucidated based on NMR,FTIR,UV,and MS spectroscopic *** C-E might originate from keto-enol tautomerism of preakummicine during biogenetic pathway of akummicine.

关键词： monoterpenoid indole alkaloid alstrostines C-F Alstonia rostrata Apocynaceae

Construction of Power Trading Supply Guarantee System of High Proportion of Hydropower in the southwest Power Grid Under Extreme Climate Scenarios

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Dianwang Jishu/Power System Technology 2025年第1期49卷 113-123页

作者： Wen, Xu Zhou, Quan Sun, Tian Yang, Yang Mao, Rui Wen, Siao southwest Branch of State Grid Corporation of china Sichuan Province Chengdu 610041 China Beijing Power Trading Center Co. Ltd. Xicheng District Beijing 100031 China

Currently, the southwest Power Grid is promoting the construction of a new power system. The southwest power grid has a large-scale integration of clean energy, mainly hydropower, which depends on the weather. The system operation is facing serious challenges due to the lack of reliable power supply and the frequent occurrence of extreme climate. Firstly, this paper introduces china's southwest Power Grid and market operation pattern. Secondly, learning from the power supply issues in the Sichuan-Chongqing region of the southwest Power Grid under the extreme drought, and high-temperature climate scenarios in the summer of 2022, and based on the perspectives of the regional power grid and the marketization, the paper summarizes the four shortcomings of current power supply scheme of southwest Power Grid, namely limited warning levels, short supply cycle, limited supply space, and a single supply resource. Therefore, research methods and framework for the power supply of southwest Power Grid are proposed based on the concept of "double-level, full-lifecycle, full-space, and full-resources" ("one-double three-full"). Thirdly, the power trading system for supply sufficiency in southwest Power Grid under extreme climate scenarios is constructed: 1) proposing the concept and level determination method of power supply warning and response for regional power grids, and constructing a double-level power trading supply warning and response mechanism for "provincial power grid + regional power grid";2) proposing medium and long term interruptible power supply varieties and constructing a "medium and long term + spot + emergency" full-lifecycle power trading supply guarantee system;3) proposing the concept of inter-regional and intra-provincial market power supply, designing spatiotemporal exchange transactions of large-scale hydropower and constructing a "inter-regional + inter-provincial + intra-provincial" full-space power trading system for supply sufficiency;4) proposing p

关键词： Commerce

The Medicinal Herb Panax notoginseng Genome Provides Insights into Ginsenoside Biosynthesis and Genome Evolution

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Molecular Plant 2017年第6期10卷 903-907页

作者： Dan Zhang Wei Li En-hua Xia Qun-jie Zhang Yuan Liu Yun Zhang Yan Tong Yuan Zhao Yong-chao Niu Jia-huan Xu Li-zhi Gao Institution of Genomics and Bioinformatics South China Agriculturar University Guangzhou 510642 China Plant germplasm and Genomics Center Germplasm Bank of Wild Species in Southwestern China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China Agrobiological Gene Research Center Guangdong Academy of Agricultural Sciences Guangzhou 510640 China Yunnan Agricultural University Kunming 650201 China Genosys Inc. Shenzhen 518000 China

Dear Editor Panax notoginseng （Burk） F.H. Chen, belonging to the genus Panax （Araliaceae）, is one of the most highly valued medicinal plants in the world. The dried root of this plant, known as ＂Sanchi＂, is one of the most commonly used traditional Chinese medicines and has been used as a top-class tonic for more than 2000 years.

关键词： Medicinal Herb Panax notoginseng Genome Provides Insights

Factors limiting the recruitment of Quercus schottkyana,a dominant evergreen oak in SW china

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Plant Diversity 2018年第6期40卷 277-283页

作者： Ke Xia Roy Turkington Hong-yu Tan Lei Fan germplasm bank of wild species Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Botany Department and Biodiversity Research CentreUniversity of British ColumbiaVancouverBCV6T IZ4Canada Department of Statistics Colorado State UniversityFort CollinsCO80523USA

Quercus schottkyana is a dominant species of oak in the Asian evergreen broad-leaved forests in southwestern china but seedlings are uncommon and recruitment is rare. Annual acorn production by Q. schottkyana is variable and the acorns are exposed to a series of mortality risks. Understanding the factors that limit recruitment of the oak requires knowledge of the oak's life cycle from acorn production to germination and seedling establishment. In this study, we first tested the effects of acorn density on establishment of seedlings by placing batches of acorns at different densities throughout the study ***, we tested the effects of herbivores on seedling survival by erecting fences around both natural and transplanted seedling populations. Our results show that even though the rate of seedling establishment increases as acorn density increases(for 32-8000 acorns?m^(-2)), survival rates of seedlings in the field were generally low(0-0.6%). We show that seedling recruitment of Q. schottkyana is mainly limited to the acorn stage where 88% of the acorns died from the combined effects of desiccation and predation by weevils(Curculio) and bark beetles(Coccotrypes sp.). Herbivory results in the death of some seedlings and consequently also affects the recruitment of seedlings of Q. schottkyana.

关键词： Cyclobalanopsis glaucoides Desiccation Predation Recalcitrant seeds Seedling Yunnan

Impacts of CO2 elevation on the physiology and seed quality of soybean

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Plant Diversity 2020年第1期42卷 44-51页

作者： Guowei Zheng Jia Chen Weiqi Li College of Chinese Material Medica Yunnan University of Chinese MedicineKunmingYunnanPeople's Republic of China germplasm bank of wild species Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnanPeople's Republic of China Yunnan Key Laboratory of Dai and Yi Medicines Yunnan University of Chinese MedicineKunmingYunnanPeople's Republic of China

Understanding the responses of crops to elevated atmospheric carbon dioxide concentrations(E[CO2])is very important in terms of global food *** present study investigates the effects of CO2 enrichment(to 800μmol mol^-1)on the physiology of soybean plants and the nutritional value of their seeds under growth chamber *** photosynthesis of soybean was significantly promoted by E[CO2]at all growth stages,but leaf area and specific leaf weight were not *** levels of mineral elements in the leaves decreased under *** soil properties after soybean cultivation under E[CO2]were not affected,except for a decrease in available ***,the levels of soluble sugars in the seeds were not affected by E[CO2].but the levels of natural antioxidants *** addition,the level of oleic acid decreased under E[CO2].However,levels of fatty acid peroxidation and saturation were *** conclusion.E[CO2] appears to have positive effects on the growth of cultivated soybean plants,but its influence on the nutritional values of soybean seeds is ***?2019 Kunming Institute of *** Academy of Sciences.

关键词： CO2 elevation Isoflavone Tocopherol Fatty acid Mineral element

High-quality Cymbidium mannii genome and multifaceted regulation of crassulacean acid metabolism in epiphytes

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Plant Communications 2023年第5期4卷 191-207页

作者： Weishu Fan Zheng-Shan He Mengqing Zhe Jing-Qiu Feng Le Zhang Yiwei Huang Fang Liu Jia-Lin Huang Ji-Dong Ya Shi-Bao Zhang Jun-Bo Yang Andan Zhu De-Zhu Li germplasm bank of wild species Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China Kunming College of Life Science University of Chinese Academy of SciencesKunmingYunnan 650201China Key Laboratory for Economic Plants and Biotechnology Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China Yuxi Normal University YuxiYunnan 653100China

Epiphytes with crassulacean acid metabolism(CAM)photosynthesis are widespread among vascular plants,and repeated evolution of CAM photosynthesis is a key innovation for micro-ecosystem ***,we lack a complete understanding of the molecular regulation of CAM photosynthesis in ***,we report a high-quality chromosome-level genome assembly of a CAM epiphyte,Cymbidium mannii(Orchidaceae).The 2.88-Gb orchid genome with a contig N50 of 22.7 Mb and 27192 annotated genes was organized into 20 pseudochromosomes,82.8%of which consisted of repetitive *** expansions of long terminal repeat retrotransposon families have made a major contribution to the evolution of genome size in Cymbidium *** reveal a holistic scenario of molecular regulation of metabolic physiology using high-resolution transcriptomics,proteomics,and metabolomics data collected across a CAM diel *** of rhythmically oscillating metabolites,especially CAM-related products,reveal circadian rhythmicity in metabolite accumulation in *** analysis of transcript and protein level regulation revealed phase shifts during the multifaceted regulation of circadian ***,we observed diurnal expression of several core CAM genes(especially bCA and PPC)that may be involved in temporal fixation of carbon *** study provides a valuable resource for investigating post-transcription and translation scenarios in ***,an Orchidaceae model for understanding the evolution of innovative traits in epiphytes.

关键词： epiphytes CAM photosynthesis multi-omics phase shifts rhythmic metabolites

New taxa of tribe Gastrodieae(Epidendroideae,Orchidaceae)from Yunnan,china and its conservation implication

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Plant Diversity 2021年第5期43卷 420-425页

作者： Qiang Liu Ji-Dong Ya Xun-Feng Wu Bing-Yi Shao Kuan-Bo Chi Hai-Lei Zheng Jian-Wu Li Xiao-Hua Jin Yunnan Forestry Technological College Jindian RoadPanlong DistrictKunmingYunnan650224China germplasm bank of wild species Kunming Institute of BotanyChinese Academy of SciencesLanhei Road 132HeilongtanKunmingYunnan650201China State Key Laboratory of Systematic and Evolutionary Botany&Herbarium(PE) Institute of BotanyChinese Academy of SciencesBeijing100093China southwest Forestry University Kunming650224China china wild Dali Nature Education and Research Center DaliYunnan671000China Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglaYunnan666303China

Gastrodia longistyla,a new species of Orchidaceae from Yunnan Province,china,is described and *** is morphologically similar to Gastrodia peichatieniana,but can be easily distinguished from the latter by having a rhombic epichile,long column(6.0-7.5 mm long),and a needle-shaped appendage(1.8-3.2 mm in length)at the base of the *** key and colour photographs are provided.A preliminary risk-of-extinction assessment,according to the IUCN Red List Categories and Criteria,is given for the new *** plastome of *** is 30464 bp in length with GC content approximately24.8%,and the plastome does not contain some housekeeping genes,such as matK,rpl16,or all photosynthesis *** addition,the *** plastome lacks an IR *** indicates that the plastome is in the last stage of degradation.

关键词： Gastrodia Taxonomy New species Gastrodieae Orchidaceae china

DNA barcoding and molecular phylogeny of Dumasia(Fabaceae:Phaseoleae)reveals a cryptic lineage

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Plant Diversity 2020年第5期42卷 376-385页

作者： Kai-Wen Jiang Rong Zhang Zhong-Fu Zhang Bo Pan Bin Tian Key Laboratory of Biodiversity Conservation in southwest china National Forestry and Grassland AdministrationSouthwest Forestry UniversityKunming650224China germplasm bank of wild species Kunming Institute of BotanyChinese Academy of SciencesKunming650201YunnanChina University of Chinese Academy of Sciences Beijing100049China Department of Wetland Southwest Forestry UniversityKunming650224China Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla666303China Center of Conservation Biology Core Botanical GardensChinese Academy of SciencesMengla666303China Department of Botany and Biodiversity Research University of ViennaRennweg 14A-1030ViennaAustria

Dumasia taxonomy and classification have long been *** within this genus have few morphological differences and plants without flowers or fruits are difficult to accurately *** this study,we evaluated the ability of six DNA barcoding sequences,one nuclear(ITS)and five chloroplast regions(trnH-psbA,matK,rbcL,trnL-trnF,psbB-psbF),to efficiently identify Dumasia *** single markers or their combinations identify obvious barcoding gaps between intraspecific and interspecific genetic *** combined analyses including ITS showed good species resolution and identification *** therefore suggest that ITS alone or a combination of ITS with any cpDNA marker are most suitable for DNA barcoding of *** phylogenetic analyses clearly indicated that Dumasia yunnanensis is not monophyletic and is separated as two independent branches,which may result from cryptic *** results demonstrate that molecular data can deepen the comprehension of taxonomy of Dumasia and provide an efficient approach for identification of the species.

关键词： Cryptic species DNA barcoding Dumasia Internal transcribed spacer(ITS) Plastid genome

Non-host plants:Are they mycorrhizal networks players?

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Plant Diversity 2022年第2期44卷 127-134页

作者： Yanliang Wang Xinhua He Fuqiang Yu The germplasm bank of wild species Yunnan Key Laboratory for Fungal Diversity and Green DevelopmentKunming Institute of BotanyChinese Academy of SciencesKunmingYunnan650201China Department of Land Air and Water ResourcesUniversity of California at DavisDavisCA95616USA School of Biological Sciences University of Western AustraliaPerthWA6009Australia

Common mycorrhizal networks(CMNs)that connect individual plants of the same or different species together play important roles in nutrient and signal transportation,and plant community ***,about 10%of land plants are non-mycorrhizal species with roots that do not form any wellrecognized types of mycorrhizas;and each mycorrhizal fungus can only colonize a limited number of plant species,resulting in numerous non-host plants that could not establish typical mycorrhizal symbiosis with a specific mycorrhizal *** and how non-mycorrhizal or non-host plants are able to involve in CMNs remains *** we summarize studies focusing on mycorrhizal-mediated host and non-host plant *** has showed that some host-supported both arbuscular mycorrhizal(AM)and ectomycorrhizal(EM)hyphae can access to non-host plant roots without forming typical mycorrhizal structures,while such non-typical mycorrhizal colonization often inhibits the growth but enhances the induced system resistance of non-host ***,the host growth is also differentially affected,depending on plant and fungi *** analyses suggested that the AMF colonization to non-hosts is different from pathogenic and endophytic fungi colonization,and the hyphae in non-host roots may be alive and have some unknown *** we propose that non-host plants are also important CMNs *** non-mycorrhizal model species Arabidopsis,tripartite culture system and new technologies such as nanoscale secondary ion mass spectrometry and multiomics,to study nutrient and signal transportation between host and non-host plants via CMNs may provide new insights into the mechanisms underlying benefits of intercropping and agro-forestry systems,as well as plant community establishment and stability.

关键词： Colonization Mycorrhizal networks Non-hosts Tripartite interaction