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| 1 | First dark matter search results from the PandaX-Ⅰ experiment显示文摘We report on the first dark-matter(DM)search results from PandaX-I,a low threshold dual-phase xenon experiment operating at the China JinPing Underground Laboratory.In the 37-kg liquid xenon target with 17.4 live-days of exposure,no DM particle candidate event was found.This result sets a stringent limit for low-mass DM particles and disfavors the interpretation of previously-reported positive experimental results.The minimum upper limit,3.7×10-44cm2,for the spin-independent isoscalar DM-particle-nucleon scattering cross section is obtained at a DM-particle mass of 49 GeV/c2at 90%confidence level. | XIAO MengJiao XIAO Xiang ZHAO Li CAO XiGuang CHEN Xun CHEN YunHua CUI XiangYi FANG DeQing FU ChangBo GIBONI Karl L. GONG HaoWei GUO GuoDong HU Jie HUANG XingTao JI XiangDong JU YongLin LEI SiAo LI ShaoLi LIN Qing LIU HuaXuan LIU JiangLai LIU Xiang LORENZON Wolfgang MA YuGang MAO YaJun NI KaiXuan PUSHKIN Kirill REN XiangXiang SCHUBNELL Michael SHEN ManBing STEPHENSON Scott TAN AnDi TARL Greg WANG HongWei WANG JiMin WANG Meng WANG XuMing WANG Zhou WEI YueHuan WU ShiYong XIE PengWei YOU YingHui ZENG XiongHui ZHANG Hua ZHANG Tao ZHU ZhongHua | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，11： | 10 |
| 2 | PandaX: a liquid xenon dark matter experiment at CJPL显示文摘PandaX is a large liquid-xenon detector experiment usable for direct dark-matter detection and 136Xe double-beta decay search.The central vessel was designed to accommodate a staged target volume increase from initially 120 kg(stage I)to 0.5 t(stage II)and eventually to a multi-ton scale.The experiment is located in the Jinping Deep-Underground Laboratory in Sichuan,China.The detector operates in dual-phase mode,allowing detection of both prompt scintillation,and ionization charge through proportional scintillation.In this paper a detailed description of the stage I detector design and performance as well as results established during the commissioning phase are presented. | CAO XiGuang CHEN Xun CHEN YunHua CUI XiangYi FANG DeQing FU ChangBo GIBONI Karl L. GONG HaoWei GUO GuoDong HE Ming HU Jie HUANG XingTao JI XiangDong JU YongLin LI ShaoLi LIN Qing LIU HuaXuan LIU JiangLai LIU Xiang LORENZON Wolfgang MA YuGang MAO YaJun NI KaiXuan PUSHKIN Kirill REN XiangXiang SCHUBNELL Michael SHEN ManBing SHI YuJie STEPHENSON Scott TAN AnDi TARLé Greg WANG HongWei WANG JiMing WANG Meng WANG XuMing WANG Zhou WEI YueHuan WU ShiYong XIAO MengJiao XIAO Xiang XIE PengWei YE Tao YOU YingHui ZEN XiongHui ZHANG Hua ZHANG Tao ZHAO HaiYing ZHAO Li ZHOU XiaoPeng ZHU ZhongHua | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，8： | 9 |
| 3 | 吹扫捕集法测定粮食中熏蒸剂氰与氰化氢残留量显示文摘采用吹扫捕集气相色谱法建立了熏蒸剂氰和氰化氢在粮食(玉米、高粱、稻谷、小麦和大麦)中的分析方法,对粮食中氰和氰化氢预处理的吹扫温度、吹扫载气(N2)流量和吹扫时间等参数进行了优化,分析了吹扫捕集气相色谱测定的回收率、精密度、检出限和定量限等质量控制参数,并测定了实际熏蒸粮食中氰及其降解产物氰化氢残留量。结果表明,用50%磷酸溶液作溶剂,吹扫温度80℃、吹扫载气(N2)流量40 mL/min和吹扫时间90 min为最佳的吹扫方法参数。采用该方法测定粮食中氰和氰化氢的加标回收率分别为90.88%~96.25%和91.17%~95.83%,相对标准偏差(RSD)分别为0.36%~5.55%和0.90%~6.24%(n=6),检出限(LOD)分别为0.003 6 mg/kg和0.005 3 mg/kg(S/N=3),定量限(LOQ)分别为0.012 0 mg/kg和0.017 7mg/kg(S/N=10)。用吹扫捕集法检测熏蒸粮食中氰其降解产物氰化氢的残留量与溶剂顶空法测定结果相一致。 | 李保同 曾鑫年 Ren Yonglin | 2013 | 中国粮油学报2013，28，3： | 7 |
| 4 | Characterization of volatiles Tribolium castaneum(H.)in flour using solid phase microextraction–gas chromatography mass spectrometry(SPME–GCMS)显示文摘The objective of this study was to identify volatile organic compounds(VOCs)from flour,Tribolium castaneum(Herbst)and flour infested by T.castaneum separately,to confirm the difference of healthy flour and flour infested by T.castaneum and to explore the new technique to diagnose stored flour’s quality by its VOCs change.Headspace-solid phase microextraction(HS-SPME)coupled with gas chromatography(GC)and gas chromatography–mass spectrometry(GC–MS)were used to detect the VOCs of three different samples.Totally,71 different compounds were identified in flour,T.castaneum and T.castaneum infested flour.Therefore,27 VOCs were identified from flour alone,32 VOCs from T.castaneum and 39 VOCs from T.castaneum infested flour.The compound 2-ethyl-2,5-cyclohexadiene-1,4-dione is only found in T.castaneum infested flour.This suggests that 2-ethyl-2,5-cyclohexadiene-1,4-dione can be a useful VOC for detecting T.castaneum in flour. | Yonghao Niu Giles Hardy Manjree Agarwal Lei Hua Yonglin Ren | 2016 | Food Science and Human Wellness2016，5，1： | 6 |
| 5 | Dark matter direct search sensitivity of the PandaX-4T experiment显示文摘The Panda X-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1-10 keV electron equivalent energy, the total electron recoil background is found to be 4.9 × 10^(-5) kg^(-1) d^(-1) keV^(-1). The nuclear recoil background in the same region is 2.8 × 10^(-7) kg^(-1) d^(-1) keV^(-1). With an exposure of 5.6 ton-years, the sensitivity of Panda X-4 T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10^(-48) cm^2 at a dark matter mass of 40 Ge V/c^2. | HongGuang Zhang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui BinBin Dong DeQing Fang ChangBo Fu Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo ZhiFan Guo Ke Han ChangDa He ShengMing He Di Huang XingTao Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju ShaoLi Li Yao Li Heng Lin HuaXuan Liu JiangLai Liu YuGang Ma YaJun Mao KaiXiang Ni JinHua Ning XiangXiang Ren Fang Shi AnDi Tan AnQing Wang Cheng Wang HongWei Wang Meng Wang QiuHong Wang SiGuang Wang XiuLi Wang XuMing Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu JuMin Yuan JianFeng Yue Dan Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，3： | 6 |
| 6 | Predicting the potential geographic distribution of Bactrocera bryoniae and Bactrocera neohumeralis(Diptera: Tephritidae) in China using MaxEnt ecological niche modeling显示文摘Bactrocera bryoniae and Bactrocera neohumeralis are highly destructive and major biosecurity/quarantine pests of fruit and vegetable in the tropical and subtropical regions in the South Pacific and Australia.Although these pests have not established in China,precautions must be taken due to their highly destructive nature.Thus,we predicted the potential geographic distribution of B.bryoniae and B.neohumeralis across the world and in particular China by ecological niche modeling of the Maximum Entropy(Max Ent)model with the occurrence records of these two species.Bactrocera bryoniae and B.neohumeralis exhibit similar potential geographic distribution ranges across the world and in China,and each species was predicted to be able to distribute to over 20%of the globe.Globally,the potential geographic distribution ranges for these two fruit fly species included southern Asia,the central and the southeast coast of Africa,southern North America,northern and central South America,and Australia.While within China,most of the southern Yangtze River area was found suitable for these species.Notably,southern China was considered to have the highest risk of B.bryoniae and B.neohumeralis invasions.Our study identifies the regions at high risk for potential establishment of B.bryoniae and B.neohumeralis in the world and in particular China,and informs the development of inspection and biosecurity/quarantine measures to prevent and control their invasions. | Jing Wan QI Guo-jun MA Jun Yonglin REN WANG Rui Simon MCKIRDY | 2020 | Journal of Integrative Agriculture2020，19，8： | 5 |
| 7 | Heterogeneous strain regime in the eastern margin of Tibetan Plateau and its tectonic implications显示文摘The eastern margin of Tibetan Plateau is one of the most active zones of tectonic deformation and seismicity in China. To monitor strain buildup and benefit seismic risk assessment, we constructed 14 survey-mode global position system(GPS) stations throughout the northwest of Longmenshan fault. A new GPS field over 1999–2011 is derived from measurements of the newly built and pre-existing stations in this region. Sequentially,two strain rate fields, one preceding and the other following the 2008 MW7.9 Wenchuan earthquake, are obtained using the Gausian weighting approach. Strain field over1999–2007 shows distinct strain partitioning prior to the2008 MW7.9 Wenchuan earthquake, with compression spreading over around Longmenshan area. Strain field derived from the two measurements in 2009 and 2011 shows that the area around Longmenshan continues to be under striking compression, as the pattern preceding the Wenchuan earthquake, implying a causative factor of the sequent of 2013 MW6.7 Lushan earthquake. Our GPSderived dilatation shows that both the Wenchuan and Lushan earthquakes occurred within the domain of pronounced contraction. The GPS velocities demonstrate that the Longriba fault underwent slight motion with the faultnormal and-parallel rates at 1.0 ± 2.5 mm and 0.3 ± 2.2 mm/a; the Longmenshan fault displayed slow activity, with a fault-normal rate at 0.8 ± 2.5 mm/a, and a fault-parallel rate at 1.8 ± 1.7 mm/a. Longriba fault is on a par with Longmenshan fault in strain partitioning to accommodate the southeastward motion of eastern margin of the Tibetan Plateau. Integrated analysis of principal strain tensors, mean principal stress, and fast directions of mantle anisotropy shows that west of Sichuan is characterized as mechanically strong crust-mantle coupling. | Guojie Meng Xiaoning Su Weiwei Wu Jinwei Ren Yonglin Yang Jicang Wu Chieh-Hung Chen Nikolay V.Shestakov | 2015 | Earthquake Science2015，28，1： | 5 |
| 8 | Two-dimensional simulation on the rolling process of semi-solid 60Si2Mn by finite element method显示文摘The effect of various process variables on the law of metal flow for semi-solid rolling 60Si2Mn was studied by finite element method. Semi-solid 60Si2Mn can be described as compressible rigid visco-plastic porous material saturated with liquid. In terms of thermo-mechanical coupling condition, the distributions of stress, velocity and temperature were studied using software MARC. The simulation results showthat the rigid visco-plastic model can accurately describe the semi-solid 60Si2Mn rolling process.The great deformation can achieve completely in view of low flow stress of semi-solid slurry. | Renbo Song, Yonglin Kang, Xueping Ren, Hongbo Dong, and Jiwen WangMaterials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China | 2002 | Journal of University of Science and Technology Beijing2002，9，4： | 4 |
| 9 | 松木木质包装对溴甲烷吸附与解吸特性的研究显示文摘木质包装因其携带有害生物的风险极高而必须在出境前进行检疫处理,溴甲烷熏蒸处理木质包装是目前使用较广的技术之一。为确保熏蒸处理的有效性和安全性,本文以松木(Larix gmelinii)为试材,测定了木质包装对溴甲烷的吸附及解吸特性。结果表明:在25℃,48g/m3投药剂量条件下,松木对溴甲烷的吸附在熏蒸开始后的12h基本达到饱和;常压下熏蒸处理后松木对溴甲烷解吸较慢,采用减压解吸的方法能够有效增加其解吸率;延长减压解吸处理时间或者增加减压解吸的重复次数能够明显提高溴甲烷的解吸效果。 | 刘波 Ren Yonglin 詹国平 任荔荔 李柏树 王跃进 | 2013 | 植物检疫2013，27，5： | 3 |
| 10 | 氰在土壤中的吸附与转化显示文摘氰(C2N2)是一种具有替代溴甲烷潜力的新熏蒸剂,明确C2N2在土壤中的吸附与转化行为对C2N2的安全应用具有重要的意义。利用静态法研究了C2N2在土壤中的吸附与转化过程,土壤对C2N2的吸附速率与土壤的理化性质有关,受环境温度、土壤含水量和土壤生物的影响较少,与熏蒸浓度无关。采用气相色谱(GC)和流动注射分析仪(FIA)测定了土壤对C2N2的吸附率和C2N2在土壤中的可能转化产物。结果表明,土壤对C2N2的吸附能力很强,熏蒸2 h吸附率在75%以上,熏蒸24 h吸附率在98%以上,并可快速转化为HCN、NH4+和NO3-。其中,大约20%的C2N2转化为NH4+和NO3-,13%的C2N2转化为HCN。熏蒸48 h未检测到NO2-。HCN在土壤中不稳定,可进一步转化为其他含氮化合物。 | 李保同 Ren Yonglin 曾鑫年 | 2013 | 土壤学报2013，50，2： | 2 |
| 11 | Immersing Treatment of Steel Plate Surface in Steel-Aluminum Solid to Liquid Bonding显示文摘The interfacial status of the steel-aluminum solid to liquid bonding plates (their steel plate surfaces were or were not immersed in flux aqueous solution) were measured by using SEM (Scanning Electron Microscope) and X-ray diffraction . The results showed that the layer of flux (the minimum thickness was 15 μm on the steel plate surface) could protect the steel plate surface from oxidizing effectively at high temperature in solid to liquid bonding. The melt temperatUre of the flux should be lower than 580 ℃ so that it could be melted and removed completely. No. 1 flux (patent product made by the author) made up of halogeindes could also force liquid aluminum to infiltrate into steel plate surface and thus the interfacial shear strength of the bonding plate was rather large. | Peng Zhang Yunhui Du Xueping Ren Yonglin Kang Hanwu Liu Jianzhong Cui Limin Ba (Material Science and Engineering School, University of Science and Technique Beijing, Beijing 100083, China)(Metal Forming Department Northeastern University, Shenyang 1 | 1999 | International Journal of Minerals,Metallurgy and Materials1999，13，1： | 2 |
| 12 | Toxicity of cyanogen to insects of stored grain 显示文摘 | Hooper J L Desmarchelier J M Ren Yonglin | 2003 | Pest Manag Sci2003，59，3： | 1 |
| 13 | Monitoring patients via a secure and mobile heatthcare system显示文摘 | Ren Yonglin Pazzi R W N Boukerche A | 2010 | IEEE wireless communica- tions2010，17，： | 1 |
| 14 | Placebo effect in the treatment of non-small cell lung cancer:a meta-analysis显示文摘Objective:The majority of non-small cell lung cancer(NSCLC)cases remain undiagnosed until advanced stages of the disease.Accumulating studies have highlighted the utility of palliative care as an effective treatment option,which relieves patients’suffering by activating placebo effect in the body.To evaluate the clinical significance of palliative care,data from NSCLC drug-randomized controlled trials(RCTs)were collected and the effects of placebo treatment examined.Methods:PubMed(MEDLINE),Scopus,Web of Science,and China National Knowledge Infrastructure databases were searched from January 1,1978 to September 1,2020.Placebo-controlled phase II/III pharmaceutical RCTs enrolling patients with solely stage III/IV NSCLC were included.The quality of included studies was assessed using the Jadad method.Single-arm and two-arm meta-analyses of the therapeutic and adverse effects of placebo,that is,the primary and secondary outcome measures,were subsequently performed using either Bayesian or conventional models.Results:Five RCTs including 2245 drug-treated and 1510 placebo-treated patients at NSCLC stage III or IV were included for the study.Low risk of bias was observed for all five included studies using the Cochrane method.Following placebo treatment,controlled disease rate of 24.1%(95%credible interval[CrI],-0.126-0.609)and dropout rate of 2.1%(95%CrI,0.007-0.039)were calculated,with a dose reduction rate of 3.0%(95%CrI,0.017-0.045).Compared with active drug treatment,the placebo treatment group had a risk ratio of 0.81(95%confidence interval,0.68-0.97)and 0.85(95%confidence interval,0.76-0.96)for the achievement of progression-free survival and overall survival,respectively.Conclusion:In NSCLC drug RCTs,placebo treatment is indicated to generally induce low toxicity in patients by dropout and dose reduction rates and adverse events,although the therapeutic responses could not be precisely determined.The results suggest that under specific circumstances,palliative care which can activate placebo effect may have similar effects as active drugs(such as erlotinib,vandetanib,or pemetrexed)in terms of prolonging survival time. | Siyuan Ren Mengyao Ma Chuan He Yuhui Deng Xiaoyun Chen Yonglin Liu Yangyang Jin Yansong Liu Lei Cai Lin He | 2022 | Journal of Bio-X Research2022，5，3： | 1 |
| 15 | An improved evaluation of the neutron background in the PandaX-Ⅱ experiment显示文摘In dark matter direct detection experiments,neutron is a serious source of background,which can mimic the dark matter-nucleus scattering signals.In this paper,we present an improved evaluation of the neutron background in the PandaX-II dark matter experiment by a novel approach.Instead of fully relying on the Monte Carlo simulation,the overall neutron background is determined from the neutron-induced high energy signals in the data.In addition,the probability of producing a dark-matter-like background per neutron is evaluated with a complete Monte Carlo generator,where the correlated emission of neutron(s)andγ(s)in the(α,n)reactions and spontaneous fissions is taken into consideration.With this method,the neutron backgrounds in the Run 9(26-ton-day)and Run 10(28-ton-day)data sets of PandaX-II are estimated to be(0.66±0.24)and(0.47±0.25)events,respectively. | QiuHong Wang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui YingJie Fan DeQing Fang ChangBo Fu LiSheng Geng Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo Ke Han ChangDa He Di Huang Yan Huang YanLin Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju YiHui Lai Kun Liang HuaXuan Liu JiangLai Liu WenBo Ma YuGang Ma YaJun Mao Yue Meng Parinya Namwongsa KaiXiang Ni JinHua Ning XuYang Ning XiangXiang Ren ChangSong Shang Lin Si AnDi Tan AnQing Wang HongWei Wang Meng Wang SiGuang Wang XiuLi Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu Jumin Yuan Dan Zhang HongGuang Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，3： | 0 |
| 16 | Boosting anapole-exciton strong coupling in all-dielectric heterostructures显示文摘The light manipulation beyond the diffraction limit plays an invaluable role in modern physics and nanophotonics.In this work,we have demonstrated a strong coupling with a large Rabi splitting of 151 me V between bulk WS_(2)excitons and anapole modes in the WS_(2)-Si nanodisk heterostructure array with nanoholes as small as 50 nm radius.This result is acquired by introducing anapole modes to suppress radiative losses to confine light into subwavelength volumes and large spatial overlapping between excitons and strong optical fields.Our work shows that anapole modes may serve as a powerful way to enhance the interaction between light and matter at nanoscales,and it should pave an avenue toward high-performance all-dielectric optoelectronic applications. | JINGYU WANG WEIMIN YANG GUOYA SUN YONGLIN HE PEIWEN REN ZHILIN YANG | 2022 | Photonics Research2022，10，7： | 0 |
| 17 | Constraining self-interacting dark matter with the full dataset of PandaX-II显示文摘Self-interacting dark matter(SIDM)is a leading candidate proposed to solve discrepancies between predictions of the prevailing cold dark matter theory and observations of galaxies.Many SIDM models predict the existence of a light force carrier that mediates strong dark matter self-interactions.If the mediator couples to the standard model particles,it could produce characteristic signals in dark matter direct detection experiments.We report searches for signals of SIDM models with a light mediator using the full dataset of the PandaX-II experiment,basing on a total exposure of 132 tonne-days.No significant excess over background is found,and our likelihood analysis leads to a strong upper limit on the dark matter-nucleon coupling strength.We further combine the PandaX-II constraints and those from observations of the light element abundances in the early universe,and show that direct detection and cosmological probes can provide complementary constraints on dark matter models with a light mediator. | Jijun Yang Abdusalam Abdukerim Wei Chen Xun Chen Yunhua Chen Chen Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Shengming He Di Huang Yan Huang Ran Huo Yanlin Huang Zhou Huang Xiangdong Ji Yonglin Ju Shuaijie Li Qing Lin Huaxuan Liu Jianglai Liu Xiaoying Lu Wenbo Ma Yugang Ma Yajun Mao Yue Meng Nasir Shaheed Kaixiang Ni Jinhua Ning Xuyang Ning Xiangxiang Ren Changsong Shang Guofang Shen Lin Si Andi Tan Anqing Wang Hongwei Wang Meng Wang QiuHong Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Mengmeng Wu Shiyong Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Yong Yang Chunxu Yu Hai-Bo Yu Jumin Yuan Ying Yuan Xinning Zeng Dan Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，11： | 0 |
| 18 | Determination of Double Beta Decay Half-Life of 136Xe with the PandaX-4T Natural Xenon Detector显示文摘Precise measurement of two-neutrino double beta decay(DBD)half-life is an important step for the searches of Majorana neutrinos with neutrinoless double beta decay.We report the measurement of DBD half-life of 136xe using the Pandax-4T dual-phase Time Projection Chamber(TPC)with 3.7-tonne natural xenon and the first 94.9-day physics data release. | Lin Si Zhaokan Cheng Abdusalam Abdukerim Zihao Bo Wei Chen Xun Chen Yunhua Chen Chen Cheng Yunshan Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Jinrong He Di Huang Yanlin Huang Zhou Huang Ruquan Hou Xiangdong Ji Yonglin Ju Chenxiang Li Jiafu Li Mingchuan Li Shu Li Shuaijie Li Qing Lin Jianglai Liu Xiaoying Lu Lingyin Luo Yunyang Luo Wenbo Ma Yugang Ma Yujun Mao Yue Meng Nasir Shaheed Xiaofeng Shang Xuyang Ning Ningchun Qi Zhicheng Qian Xiangxiang Ren Changsong Shang Guofang Shen Wenliang Sun Andi Tan Yi Tao Anqing Wang Meng Wang Qiuhong Wang Shaobo Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Yuehuan Wei Mengmeng Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Xiyu Yan Yong Yang Chunxu Yu Jumin Yuan Ying Yuan Zhe Yuan Dan Zhang Minzhen Zhang Peng Zhang Shibo Zhang Shu Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou Yong Zhou | 2023 | Research2023，，2： | 0 |
| 19 | A high-quality Bougainvillea genome provides new insights into evolutionary history and pigment biosynthetic pathways in the Caryophyllales显示文摘Bougainvillea is a perennial ornamental shrub that is highly regarded in ornamental horticulture around the world.However,the absence of genome data limits our understanding of the pathways involved in bract coloration and breeding.Here,we report a chromosome-level assembly of the giga-genome of Bougainvillea×buttiana‘Mrs Butt’,a cultivar thought to be the origin of many other Bougainvillea cultivars.The assembled genome is∼5 Gb with a scaffold N50 of 151756278 bp and contains 86572 genes which have undergone recent whole-genome duplication.We confirmed that multiple rounds of whole-genome multiplication have occurred in the evolutionary history of the Caryophyllales,reconstructed the relationship in the Caryophyllales at whole genome level,and found discordance between species and gene trees as the result of complex introgression events.We investigated betalain and anthocyanin biosynthetic pathways and found instances of independent evolutionary innovations in the nine different Caryophyllales species.To explore the potential formation mechanism of diverse bract colors in Bougainvillea,we analyzed the genes involved in betalain and anthocyanin biosynthesis and found extremely low expression of ANS and DFR genes in all cultivars,which may limit anthocyanin biosynthesis.Our findings indicate that the expression pattern of the betalain biosynthetic pathway did not directly correlate with bract color,and a higher expression level in the betalain biosynthetic pathway is required for colored bracts.This improved understanding of the correlation between gene expression and bract color allows plant breeding outcomes to be predicted with greater certainty. | Lan Lan Huiqi Zhao Suxia Xu Shenglong Kan Xiaoni Zhang Weichao Liu Xuezhu Liao Luke RTembrock Yonglin Ren Wayne Reeve Jun Yang Zhiqiang Wu | 2023 | Horticulture Research2023，10，8： | 0 |
| 20 | 氰(C_2N_2)在3种类型土壤中的吸附与消解动态显示文摘氰(C2N2)是一种具有替代溴甲烷潜力的新熏蒸剂,明确C2N2在3种类型土壤(沙质土、壤土和粘质土)中的吸附行为与消解动态对C2N2的安全应用与风险评估具有重要的意义。采用静态平衡法研究了C2N2在3种类型土壤中的吸附与挥发行为,采用溶剂顶空法测定了C2N2在3种类型土壤中的消解动态。结果表明,土壤对C2N2具有较强的吸附能力,熏蒸4h,85%以上的C2N2被土壤吸附,熏蒸12h,98%以上的C2N2被土壤吸附,其吸附强度为粘质土>壤土>沙质土。熏蒸期间C2N2在沙质土、壤土和粘质土配气瓶内消退较快,熏蒸48h的消退率分别为94.12%、96.70%和98.27%。同时,C2N2在土壤中可快速转化产生HCN,熏蒸后1h达到最大值,其浓度为粘质土>壤土>沙质土,而后快速下降。通风后C2N2及其转化产物HCN在土壤中易于挥发和消解,C2N2和HCN在3种类型土壤中的挥发速率相近,在沙质土、壤土和粘质土中C2N2的消解半衰期分别为15.82、14.56h和12.43h,HCN分别为17.52、20.82h和24.27h。 | 李保同 Ren Yonglin 曾鑫年 | 2013 | 农业环境科学学报2013，32，1： | 0 |
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