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Aβ-Carotene Ketolase Gene NfcrtO from Subaerial Cyanobacteria Confers Drought Tolerance in Rice

Rice science 2024年第1期31卷 62-76页

作者： GAO Ningning YE Shuifeng ZHANG Yu ZHOU Liguo ma xiaosong YU Hanxi LI Tianfei HAN Jing LIU Zaochang LUO Lijun College of Plant Science and Technology Huazhong Agricultural UniversityWuhan 430070China Shanghai Agrobiological Gene Center Shanghai 201106China College of Life Sciences Shangrao Normal UniversityShangrao 334001China Institute for Agri-food Standards and Testing Technology Shanghai Academy of Agricultural SciencesShanghai 201403China

Nostoc flagelliforme is a terrestrial cyanobacterium that can resist many types of stressors,including drought,ultraviolet radiation,and extreme temperatures.In this study,we identified the drought tolerance gene NfcrtO,which encodes aβ-carotene ketolase,through screening the transcriptome of N.flagelliforme under water loss stress.Prokaryotic expression of NfcrtO under 0.6 mol/L sorbitol or under 0.3 mol/L NaCl stress significantly increased the growth rate of Escherichia coli.When NfcrtO was heterologously expressed in rice,the seedling height and root length of NfcrtO-overexpressing rice plants were significantly higher than those of the wild type(WT)plants grown on½Murashige and Skoog solid medium with 120 mmol/L mannitol at the seedling stage.Transcriptome analysis revealed that NfcrtO was involved in osmotic stress,antioxidant,and other stress-related pathways.Additionally,the survival rate of the NfcrtO-overexpression lines was significantly higher than that of the WT line under both hydroponic stress(24%PEG and 100 mmol/L H_(2)O_(2))and soil drought treatment at the seedling stage.Physiological traits,including the activity levels of superoxide dismutase,peroxidase,catalase,total antioxidant capacity,and the contents of proline,trehalose,and soluble sugar,were significantly improved in the NfcrtO-overexpression lines relative to those in the WT line under 20%PEG treatment.Furthermore,when water was withheld at the booting stage,the grain yield per plant of NfcrtO-overexpression lines was significantly higher than that of the WT line.Yeast two-hybrid analysis identified interactions between NfcrtO and Dna J protein,E3 ubiquitin-protein ligase,and pyrophosphate-energized vacuolar membrane proton pump.Thus,heterologous expression of NfcrtO in rice could significantly improve the tolerance of rice to osmotic stress,potentially facilitating the development of new rice varieties.

关键词： antioxidant enzyme β-carotene ketolase drought resistance Nostoc flagelliforme osmotic stress rice transcriptome analysis

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Genetic Dissection of Quantitative Trait Loci for Panicle Traits and Heat Tolerance by High-Density Bin map in Rice

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Rice science 2022年第6期29卷 507-511,I0007-I0020页

作者： LIU Hongyan ma xiaosong LI Enxi ZENG Xianjun LUO Lijun Shanghai Agrobiological Gene Center Shanghai 201106China Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization Ministry of Agriculture and Rural AffairsShanghai 201106China Hainan University Haikou 570228China Huazhong Agricultural University Wuhan 430070China

A recombinant inbred line(RIL)with 179 lines derived from a cross between a heat tolerant line Huhan 1B and a heat sensitive line Hanhui 3 was used for QTL mapping for panicle traits and heat tolerance.A total of 52 QTLs were identified with LOD scores from 3.85 to 54.93,each explaining 0.70%to 21.48%of the phenotypic variances,including 11 for panicle length(PL),11 for seed number per panicle(SN),14 for spikelet number per panicle(SNPP),6 for seed-setting rate(SSR)under normal conditions,and 5 for seed-setting rate(SSR_HT)and 5 for relative seed-setting rate(RSSR)under heat stress,respectively.

关键词： panicle Traits map

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Dissecting Genetic Basis of Deep Rooting in Dongxiang Wild Rice

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Rice science 2022年第3期29卷 277-287页

作者： NIE Yuanyuan XIA Hui ma xiaosong LOU Qiaojun LIU Yi ZHANG Anling CHENG Liang YAN Longan LUO Lijun Huazhong Agricultural University Wuhan 430070China Shanghai Agrobiological Gene Center Shanghai 201106China Jiangxi Research and Development Center of Super Rice/Nanchang Branch of Chinese National Center for Rice Improvement Nanchang 330200China

Deep rooting is an important trait in rice drought resistance.Genetic resources of deep-rooting varieties are valuable in breeding of water-saving and drought-resistant rice.In the present study,234BC2F7 backcross introgression lines were derived from a cross of Dongye 80(an accession of Dongxiang wild rice as the donor parent)and R974(an indica restorer line as the recurrent parent).A genetic linkage map containing 1977 bin markers was constructed by ddRADSeq for QTL analysis.Thirty-one QTLs for four root traits(the number of deep roots,the number of shallow roots,the total number of deep roots and the ratio of deep roots)were assessed on six rice chromosomes in two environments(2020 Shanghai and 2021 Hainan).Two of the QTLs,qDR5.1 and qTR5.2,were located on chromosome 5 in a 70-kb interval.They were detected in both environments.qDR5.1 explained 13.35%of the phenotypic variance in 2020 Shanghai and 12.01%of the phenotypic variance in 2021 Hainan.qTR5.2 accounted for 10.88%and 10.93%of the phenotypic variance,respectively.One QTL(qRDR2.2)for the ratio of deep roots was detected on chromosome 2 in a 210-kb interval and accounted for 6.72%of the phenotypic variance in 2020.The positive effects of these three QTLs were all from Dongxiang wild rice.Furthermore,nine and four putative candidate genes were identified in qRDR2.2 and qDR5.1/qTR5.2,respectively.These findings added to our knowledge of the genetic control of root traits in rice.In addition,this study will facilitate the future isolation of candidate genes of the deep-rooting trait and the utilization of Dongxiang wild rice in the improvement of rice drought resistance.

关键词： Dongxiang wild rice backcross introgression line deep rooting genetic analysis QTL

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闭合复位髓内钉内固定术治疗老年肱骨外科颈骨折的效果分析

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中国社区医师 2024年第9期40卷 77-79页

作者：马晓松公安县中医医院骨科湖北荆州434300

目的:分析闭合复位髓内钉内固定术治疗老年肱骨外科颈骨折的效果。方法:选取2020年2月—2023年2月公安县中医医院收治的肱骨外科颈骨折患者90例作为研究对象,采用随机数字表法分为对照组与试验组,各45例。对照组实施切开复位内固定术,... 详细信息

目的:分析闭合复位髓内钉内固定术治疗老年肱骨外科颈骨折的效果。方法:选取2020年2月—2023年2月公安县中医医院收治的肱骨外科颈骨折患者90例作为研究对象,采用随机数字表法分为对照组与试验组,各45例。对照组实施切开复位内固定术,试验组实施闭合复位髓内钉内固定术。比较两组治疗效果。结果:试验组手术时间及骨折愈合时间短于对照组,术中出血量少于对照组,手术切口小于对照组,差异有统计学意义(P<0.001)。术后3个月,两组肩关节后伸、外旋、内旋、外展、前屈评分高于术前,且试验组高于对照组,差异有统计学意义(P<0.05)。试验组并发症总发生率低于对照组,差异有统计学意义(P=0.014)。结论:闭合复位髓内钉内固定术治疗老年肱骨外科颈骨折的效果显著,手术时间短、切口小、失血量少,术后患者骨折端能够快速愈合,肩关节恢复情况较好,并发症发生率低。

关键词：闭合复位髓内钉内固定并发症老年肱骨外科颈骨折

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低剂量类固醇激素联合玻璃酸钠治疗粘连性肩关节囊炎的临床效果

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临床医学研究与实践 2024年第21期9卷 66-69页

作者：马小松李朋斌西立峰黄河三门峡医院骨科河南三门峡472000

目的比较低剂量类固醇激素、高剂量类固醇激素及低剂量类固醇激素联合玻璃酸钠治疗粘连性肩关节囊炎的效果。方法选取2020年12月至2021年12月我科收治的60例粘连性肩关节囊炎患者为研究对象,采用随机数字表法将其分为低剂量组、高剂量... 详细信息

目的比较低剂量类固醇激素、高剂量类固醇激素及低剂量类固醇激素联合玻璃酸钠治疗粘连性肩关节囊炎的效果。方法选取2020年12月至2021年12月我科收治的60例粘连性肩关节囊炎患者为研究对象,采用随机数字表法将其分为低剂量组、高剂量组和联合组,各20例。低剂量组给予关节腔内注射0.5 mL复方倍他米松注射液,高剂量组给予关节腔内注射1 mL复方倍他米松注射液,联合组给予关节腔内注射0.5 mL复方倍他米松注射液联合2.5 mL玻璃酸钠。比较三组的治疗效果。结果治疗后2、4、8、16周,三组的视觉模拟评分法(VAS)、肩关节疼痛与功能障碍指数(SPADI)评分低于治疗前(P0.05)。治疗后2、4、8、16周,三组的肩关节外展活动度及肩关节外旋活动度大于治疗前(P0.05)。结论低剂量类固醇激素联合玻璃酸钠可以缓解粘连性肩关节囊炎患者的疼痛,改善关节功能,其效果与高剂量类固醇激素相当,优于低剂量类固醇激素。

关键词：粘连性肩关节囊炎关节内注射类固醇玻璃酸钠

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Experimental Investigation on Solution Regeneration Performance and Coefficients in Full-Open System for Heat and Water Recovery of Flue Gas

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Journal of Thermal Science 2024年第3期33卷 1094-1108页

作者： WEI Hongyang HUANG Shifang ma Yuxin CHEN Bo SUN Li ZHANG xiaosong School of Energy and Environment Southeast UniversityNanjing210096China MOE Engineering Research Center for Building Energy Equipment&Environment Southeast UniversityNanjing210096China Jiangsu Frontier Electric Technology Co. LtdNanjing211106China

The recovery of heat and water from low-grade flue gas is of considerable importance for energy conservation and environmental preservation.While the full-open absorption heat pump shows promise as a means of achieving heat and water recovery,the lack of research on heat and mass transfer performance of open-type solution evaporation regeneration represents a significant impediment to its design and operation.This paper experimentally investigates the regeneration performance of an open-type spaying tower equipped with ceramic structured packings.Two different regeneration modes are proposed,namely ambient air receiver mode and flue gas receiver mode,to utilize air or low-grade flue gas as a driving source.The impact of different input parameters on the regeneration characteristics,including heat transfer capacity,water removal rate,thermal efficiency,and humidity effectiveness,are demonstrated.The findings indicate that the enhancement of regeneration can be achieved through the increase of solution flow rate,solution temperature,and flue gas flow rate in both regeneration modes.However,high solution concentration and flue gas humidity ratio can weaken water removal rates and reduce thermal efficiency.For the regeneration of CaCl_(2)-H_(2)O with a concentration of55%,flue gas around 200℃with a humidity ratio below 44 g/kg can successfully drive the solution regeneration process.When the solution concentration or flue gas humidity ratio continues to rise,additional energy is necessary for regeneration.Furthermore,the coupled heat and mass transfer coefficients are fitted,which can contribute to the design and optimization of the open-type regenerator.

关键词： heat and water recovery solution regeneration flue gas regeneration performance coefficient

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关节镜联合胫骨内侧开放截骨术治疗膝关节骨关节炎的临床疗效及对炎症因子的影响

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当代医学 2024年第7期30卷 133-136页

作者：马小松张华邬良平李朋斌西立峰黄河三门峡医院骨科河南三门峡472000

目的探讨关节镜联合胫骨内侧开放截骨术治疗膝关节骨关节炎(KOA)的临床疗效及对炎症因子的影响。方法选取2017年12月至2020年12月黄河三门峡医院收治的32例KOA患者作为研究对象,均行关节镜联合胫骨内侧开放截骨术治疗,比较患者治疗前及... 详细信息

目的探讨关节镜联合胫骨内侧开放截骨术治疗膝关节骨关节炎(KOA)的临床疗效及对炎症因子的影响。方法选取2017年12月至2020年12月黄河三门峡医院收治的32例KOA患者作为研究对象,均行关节镜联合胫骨内侧开放截骨术治疗,比较患者治疗前及治疗后1、3、6、12个月疼痛评分(VSA)及西安大略和曼彻斯特大学骨关节炎(WOmaC)评分及白细胞介素(IL)-1β,IL-6及肿瘤坏死因子-α(TNF-α)水平。结果治疗前及治疗后1、3、6、12个月,VAS、WOmaC评分及IL-1β、IL-6、TNF-α水平呈逐渐下降趋势,差异有统计学意义(P<0.05)。患者术前下肢全长片显示下肢力线明显内翻,术后X线片检查示截骨线及截骨处外侧合页良好,内固定钛板及螺钉位置良好;内固定取出术后X线片显示,胫骨近端内侧角增大,下肢力线恢复正常。结论关节镜联合胫骨内侧开放截骨术治疗KOA效果显著,可改善膝关节功能,减轻患者疼痛,降低关节液中炎症因子水平,值得临床推广应用。

关键词：关节镜胫骨截骨术膝关节骨关节炎炎症因子

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From fundamental quantum optics to quantum information technology:the personal journey of Sir Peter Knight

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Advanced Photonics 2021年第6期3卷 3-7页

作者： xiaosong ma Peter Knight Nanjing University School of PhysicsNanjingChina the Physics Department at Imperial College the UK National Quantum Technology Programme Strategic Advisory Board the National Physical Laboratory Quantum Metrology Institute

xiaosong ma:What inspired you to choose quantum optics as your major when you were a student,and can you share your experience or research journey in this field?Peter Knight:Quantum optics,as a discipline,was more or less formed during the time I’ve been active in the area.I started thinking about things that we would now call quantum optics in the middle of the 1960s when I was a student.

关键词： optics quantum Quantum

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中空纤维离心超滤-高效液相色谱法测定ICU患者比阿培南的谷浓度

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中国医院药学杂志 2024年第11期44卷 1260-1263,1304页

作者：陶兴隆张甜甜张宇武玺坤马晓松吴瑕董维冲宋宁张志清河北医科大学第二医院药学部河北石家庄050200 河北医科大学第二医院感染性疾病科河北石家庄050200 河北医科大学第二医院预防保健处河北石家庄050200

目的:建立一种快速、简便、低成本的比阿培南血药浓度测定方法,并对ICU患者比阿培南谷浓度进行测定。方法:建立人血浆中比阿培南浓度的测定方法,并对其验证。前瞻性地收集2023年3—8月使用比阿培南的ICU患者8例,并测定其谷浓度。结果:... 详细信息

目的:建立一种快速、简便、低成本的比阿培南血药浓度测定方法,并对ICU患者比阿培南谷浓度进行测定。方法:建立人血浆中比阿培南浓度的测定方法,并对其验证。前瞻性地收集2023年3—8月使用比阿培南的ICU患者8例,并测定其谷浓度。结果:比阿培南标准曲线为:y=0.1796x+0.0193(r=0.9999),0.2~50μg·m L^(-1),线性关系良好,定量下限为0.2μg·m L^(-1)。低、中、高3个质量浓度(0.5、5、40μg·m L^(-1))的绝对回收率平均分别为97.40%、99.43%和93.58%,方法回收率分别为100.55%、94.81%和97.41%。3个浓度的日间精密度、日内精密度均小于5.0%,使用本方法测得8例ICU患者的比阿培南谷浓度在0.51~1.79μg·m L^(-1)。ICU患者血药浓度测定结果表明,比阿培南对大肠杆菌具有较好疗效,对奇异变形杆菌、肺炎克雷伯菌和鲍曼不动杆菌引起感染的治疗效果可能不理想。结论:该方法简便、准确、重复性高、成本低,可用于比阿培南生物样品日常测定。可针对ICU感染患者进行治疗药物监测,及时调整用药方案。

关键词：比阿培南中空纤维离心超滤治疗药物监测

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Prevalence of Reproductive Tract Infections and Association with Human Papillomavirus Infection Among Reproductive-Age Women—Six Tertiary Hospitals,China,June 2021-December 2022

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China CDC weekly 2024年第10期6卷 189-194,I0002页

作者： Di Gao Jiayue Li Gengli Zhao Zhaohui Liu Hui Bi Dai Zhang Fengxia Xue Chen Liu Hongtao ma Bei Lin Xu Wang xiaosong Zhang Linhong Wang Department of Obstetrics and Gynecology Peking University First HospitalBeijingChina School of Medicine University College DublinIreland Beijing Obstetrics and Gynecology Hospital BeijingChina Tianjin Medical University General Hospital TianjinChina Northwest Women’s and Children’s Hospital Xi’an CityShaanxi ProvinceChina Third Affiliated Hospital of Zhengzhou University Zhengzhou CityHenan ProvinceChina Shengjing Hospital of China Medical University Shenyang CityLiaoning ProvinceChina National Center for Chronic and Non-Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina

Summary What is already known about this topic?Previous studies have indicated a possible association between reproductive tract infections(RTIs)and highrisk human papillomavirus(HPV)infection,but the evidence is still inconclusive.What is added by this report?This multicenter study found significantly higher positive rates of HPV,including general HPV,highrisk HPV.

关键词： Tertiary infection Reproductive

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