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爪哇虫草菌JS001浸种处理对水稻生长和防御褐飞虱的影响

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昆虫学报 2024年第4期67卷 468-476页

作者：牛洪涛张志春赵冬晓王娜王利华陈丹艳郭慧芳江苏省农业科学院植物保护研究所南京210014 安徽农业大学植物保护学院合肥230036

【目的】明确新登记的真菌杀虫剂爪哇虫草菌Cordyceps javanica JS001在调控水稻生长和防御褐飞虱Nilaparvata lugens中的作用。【方法】室内分别用1×10^(4),1×106和1×10^(8)孢子/mL爪哇虫草菌JS001孢子悬浮液浸泡水稻种子48 h,以0.0... 详细信息

【目的】明确新登记的真菌杀虫剂爪哇虫草菌Cordyceps javanica JS001在调控水稻生长和防御褐飞虱Nilaparvata lugens中的作用。【方法】室内分别用1×10^(4),1×106和1×10^(8)孢子/mL爪哇虫草菌JS001孢子悬浮液浸泡水稻种子48 h,以0.01%Triton X-100溶液浸种为对照,待培养8 d后,对水稻苗进行生长测定,并测定褐飞虱成虫对其的行为选择反应;通过气相色谱-串联质谱(GC-MS/MS)分析1×10^(8)孢子/mL爪哇虫草菌JS001孢子悬浮液浸种对水稻苗次生代谢化合物含量的影响。采用1×10^(7)孢子/mL爪哇虫草菌JS001孢子悬浮液和清水(对照)分别浸泡水稻种子48 h,于种子直播50 d后,调查稻田中稻飞虱和蜘蛛个体数量。【结果】室内测定结果表明,与对照相比,1×10^(6)和1×10^(8)孢子/mL爪哇虫草菌JS001孢子悬浮液浸种处理不仅显著促进水稻种子发芽、水稻苗根和茎叶的生长,而且降低褐飞虱成虫对水稻苗的选择性。化合物分析结果表明,与对照相比,1×10^(8)孢子/mL爪哇虫草菌JS001孢子悬浮液浸种处理的水稻苗中防御性化合物过氧化氢、油酸、辛烷等含量显著增加,能吸引褐飞虱的化合物2-壬酮含量显著降低。田间试验结果表明,与对照相比,1×10^(7)孢子/mL爪哇虫草菌JS001孢子悬浮液浸种显著降低稻田中稻飞虱数量,但对捕食性天敌蜘蛛个体数量无影响。【结论】爪哇虫草菌JS001浸种处理不但能促进水稻苗的生长,而且能提高水稻对褐飞虱的防御能力。田间试验进一步明确了爪哇虫草菌JS001在增强水稻防御稻飞虱危害中的作用。这些结果可为爪哇虫草菌的应用及稻飞虱生物防治策略的制定提供新途径。

关键词：爪哇虫草菌水稻稻飞虱选择行为生物防治

弥漫大B细胞淋巴瘤并乙型肝炎病毒感染血清sIL-2r、Flt3L、cTfh水平及与预后的关系

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中华医院感染学杂志 2024年第14期34卷 2103-2107页

作者：张媛郭燕王莉华吕国庆张灵秀黄琰新乡医学院第一附属医院血液内科一病区河南新乡453100

目的探讨弥漫大B细胞淋巴瘤(DLBCL)并乙型肝炎病毒(HBV)感染患者血清可溶性白细胞介素-2受体(sIL-2r)、Fms相关酪氨酸激酶3配体(Flt3L)、循环辅助T细胞(cTfh)水平及与预后的关系.方法选取2019年3月-2022年3月在新乡医学院第一附属医院... 详细信息

目的探讨弥漫大B细胞淋巴瘤(DLBCL)并乙型肝炎病毒(HBV)感染患者血清可溶性白细胞介素-2受体(sIL-2r)、Fms相关酪氨酸激酶3配体(Flt3L)、循环辅助T细胞(cTfh)水平及与预后的关系.方法选取2019年3月-2022年3月在新乡医学院第一附属医院收治的60例DLBCL并HBV感染患者为合并HBV组,选取同期收治的60例DLBCL未合并HBV感染患者为未合并HBV组,均在治疗前检测血清sIL-2r、Flt3L、cTfh水平.另选取30名健康志愿者为健康对照组.比较各组间指标水平差异.比较两组患者1年生存差异.利用受试者工作特征(ROC)曲线和多因素COX分析各指标与DLBCL并HBV感染患者预后关系.结果DLBCL患者血清sIL-2r、Flt3L、cTfh水平均高于健康对照组(P<0.05);合并HBV组血清sIL-2r、cTfh、Flt3L水平均高于未合并HBV组(P<0.05).合并HBV组无进展生存率、总生存率均低于未合并HBV组(P<0.05).ROC分析结果显示,sIL-2r、Flt3L、cTfh均具有预测DLBCL并HBV患者的预后价值(P<0.05).多因素COX分析结果显示,淋巴瘤分期(AnnArbor)、非霍奇金淋巴瘤预后(IPI)评分、sIL-2r、Flt3L、cTfh是影响患者预后的危险因素(P<0.05).结论HBV感染可影响DLBCL患者预后,DLBCL并HBV感染患者血清sIL-2r、Flt3L、cTfh高表达,具有预测预后的价值,且Flt3L是影响预后的危险因素.

关键词：弥漫大B细胞淋巴瘤乙型肝炎病毒可溶性白细胞介素-2受体 Fms相关酪氨酸激酶3配体循环辅助T细胞预后

Perturbations in Amino Acid Metabolism in Children with Kaschin-Beck Disease: A Study of Urinary Target Metabolomics

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Biomedical and Environmental Sciences 2019年第1期32卷 34-37页

作者： HU Jian wang Yu Meng wang Wei Yi ZHAO Zhi Jun li Qiang wang li hua The Center for Endemic Disease Control Chinese Center for Disease Control and Prevention Harbin Medical University Qinghai Institute for Endemic Disease Prevention and Control

Kaschin-Beck disease (KBD) is an endemic and chronic osteoarthropathy characterized by pathological aspects including chondrocyte degeneration, necrosis, progressive loss of articular cartilage, and secondary degenerative osteoarthrosis of epiphyseal cartilage, epiphyseal plate cartilage, and articular cartilage, during puberty[1]. The main clinical symptoms are limb joint pain, thickening, deformation, limited movement, muscle atrophy, and in case of more severely affected patients, short fingers (toes), short limbs, and even short stature[1].

关键词： Kaschin-Beck disease (KBD) Chronic osteoarthropathy Chondrocytic degeneration

Microstructure and property of laser additive manufactured alloy Ti-6Al-2V-1.5Mo-0.5Zr-0.3Si after aged at different temperatures

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Rare Metals 2024年第5期43卷 2275-2281页

作者： Guo-Chao li Xu Cheng hua-Ming wang National Engineering Laboratory of Additive Manufacturing for Large Metallic Components and Engineering Research Center of Ministry of Education on Laser Direct Manufacturing for Large Metallic Components School of Materials Science and EngineeringBeihang UniversityBeijing 100191China

The solid solution and aging treatment for conventional manufacturing processes might not be suitable for laser additive manufactured titanium alloys due to the different lamellar *** this study,the influence of aging temperatures(600,700 and 800°C)on microstructure and mechanical properties of titanium alloy Ti-6Al-2V-1.5Mo-0.5Zr-0.3Si was *** results indicate that after solid solution treatment at 970°C followed by water quenching,the alloy mainly consists of coarsening lamellar a phase in martensite α' *** at 600°C will not change the size of primary lamellar α phase but lead to huge amount of secondary a phases(α_(s))generating with very fine *** increasing the aging temperature,the number of α_(s) decreases but with coarsened *** aged at 800°C,the width of the asphase reaches 350 nm,almost 7 times wider than that aged at 600°*** changing size of α_(s) obviously influences the property of the *** fine α_(s) leads to high strength and microhardness but low plasticity,and specimen aged at 700°C with suitable assize has the best comprehensive properties.

关键词： α+βtitanium alloy Laser additive manufacturing Solid solution and aging treatment Microstructure Room temperature tensile property

Optimal Model Average Prediction in Orthogonal Kriging Models

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Journal of Systems Science & Complexity 2024年第3期37卷 1080-1099页

作者： wang Jun HE Jiabei liANG hua li Xinmin School of Mathematics and Statistics Qingdao UniversityQingdao 266071China Department of Statistics George Washington UniversityWashington DC 20052USA

The main objective of this paper is to consider model averaging methods for kriging *** paper proposes a Mallows model averaging procedure for the orthogonal kriging model and demonstrate the asymptotic optimality of the model averaging estimators in terms of mean square *** studies are conducted to evaluate the performance of the proposed method and compare it with the competitors to demonstrate its *** authors also analyse a real dataset for an illustration.

关键词： Asymptotic optimality Mallows criterion optimal model averaging orthogonal kriging model

循环肿瘤细胞上细胞程序性死亡配体1表达对宫颈癌同步放化疗预后的评估价值

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临床和实验医学杂志 2024年第16期23卷 1742-1745页

作者：王华丽任伟伟李险峰王红霞临汾市人民医院肿瘤科山西临汾041000 临汾市人民医院麻醉科山西临汾041000 山西医科大学第一临床医学院山西太原030001 临汾市人民医院妇科山西临汾041000

目的探讨循环肿瘤细胞(CTC)上细胞程序性死亡配体1(PD-L1)表达对宫颈癌同步放化疗预后的评估价值。方法回顾性选取2021年6月至2023年12月入临汾市人民医院的60例宫颈癌患者,均经病理学确诊,CTC PD-L1经CytoSorter CTC系统测定。对宫颈... 详细信息

目的探讨循环肿瘤细胞(CTC)上细胞程序性死亡配体1(PD-L1)表达对宫颈癌同步放化疗预后的评估价值。方法回顾性选取2021年6月至2023年12月入临汾市人民医院的60例宫颈癌患者,均经病理学确诊,CTC PD-L1经CytoSorter CTC系统测定。对宫颈癌病理特征与PD-L1^(+)CTC之间的相关性予以分析,并比较PD-L1^(+)CTC和PD-L1-CTC宫颈癌患者同步放化疗前后的无进展生存期(PFS),评估宫颈癌放化疗后PD-L1^(+)CTC数量对预后的评估价值。结果同步放化疗前后外周血CTC检出率及数量比较,差异无统计学意义(P>0.05)。较同步放化疗前,宫颈癌患者同步放化疗后PD-L1^(+)CTC检出率更低(38.33%vs.56.67%),PD-L1^(+)CTC检出数量更少[(0.77±1.20)个vs.(1.27±1.51)个],差异均有统计学意义(P<0.05)。同步放化疗前,宫颈癌患者PD-L1^(+)CTC与肿瘤直径、FIGO分期、分化程度及淋巴结转移联系紧密(P<0.05)。同步放化疗后,宫颈癌患者PD-L1^(+)CTC表达水平与肿瘤直径、FIGO分期、分化程度及淋巴结转移密切相关(P<0.05)。PD-L1^(+)CTC患者的PFS短于PD-L1-CTC患者,差异有统计学意义(P<0.05)。Cox回归分析显示,局部晚期宫颈癌患者同步放化疗前后的CTC PD-L1表达水平均可作为PFS预后因素。结论宫颈癌放同步放化疗前后测定的CTC PD-L1表达水平可作为预后评估的辅助指标。

关键词：宫颈肿瘤同步放化疗循环肿瘤细胞细胞程序性死亡配体1 预后

Synthesis and Herbicidal Activity of Novel Sulfonylureas Containing Thiadiazol Moiety

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Chemical Research in Chinese Universities 2008年第1期24卷 32-35页

作者： GUO Wan-cheng liU Xing-hai li Yong-hong wang Su-hua li Zheng-ming Institute of Elemento-Organic Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 P. R. China

Thirteen novel sulfonylureas containing thiadiazole moiety were synthesized in a two-step reaction. Their structures were determined using IR, ^1H NMR, HRFTMS, and elemental analysis. Herbicidal activities of these compounds were determined in the green house bio-assay. The results show that four compounds among them exhibit some activity toward four tested herbs.

关键词： Sulfonylurea Synthesis Herbicidal activity

The electronic structures,magnetism and metastable states of DNA

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Chinese Science Bulletin 2006年第14期51卷 1666-1672页

作者： wang Yongjuan li hua DONG Jianmin ZHANG Cha'ngwen PAN Fengchun School of Physics and Microelectronics Shandong University Jinan250100 China

The electronic density of states, spin- splittings and atomic magnetic moments of the six- member ring N2C4 cluster with folding configuration in DNA bases have been studied by spin-polarized MS-Xα method. The results showed that there are at least four metastable states near the ground state level ?7.01635×103 eV. Those metastable states found in the calculation are at the levels ?7.01626× 103, ?7.01616×103, ?7.01606×103 and ?7.01597×103 eV, respectively. The electronic structures of those states were found to differ from each other. Therefore, they have different characteristics. The cluster exhib-its metal properties and has a weak antiferromag-netism in the ground state, while it shows ferrimag-netism and half-metal properties in the first metasta-ble state. The distribution of the electronic density of states of the six-member ring N2C4 cluster is very similar to that of some diluted magnetic semicon-ductors near the Fermi surface.

关键词： DNA 电子结构自旋极化磁性半金属亚稳态

Overexpression of AmDUF1517 enhanced tolerance to salinity, drought, and cold stress in transgenic cotton

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Journal of Integrative Agriculture 2018年第10期17卷 2204-2214页

作者： HAO Yu-qiong LU Guo-qing wang li-hua wang Chun-ling GUO Hui-ming li Yi-fei CHENG Hong-mei Biotechnology Research Institute Chinese Academy of Agricultural Sciences

As abiotic stresses become more severe as a result of global climate changes, the growth and development of plants are restricted. In the development of agricultural crops with greater stress tolerance, AmDUF1517 had been isolated from the highly stress-tolerant shrub Ammopiptanthus mongolicus, and can significantly enhance stress tolerance when inserted in Arabidopsis thaliana. In this study, we inserted this gene into cotton to analyze its potential for conferring stress tolerance. Two independent transgenic cotton lines were used. Southern blot analyses indicated that AmDUF1517 was integrated into the cotton genome. Physiological analysis demonstrated that AmD UF1517-transgenic cotton had stronger resistance than the control when treated with salt, drought, and cold stresses. Further analysis showed that trans-AmD UF1517 cotton displayed significantly higher antioxidant enzyme（superoxide dismutase（SOD）, peroxidase（POD）, catalase（CAT）, and glutathione S-transferase（GST）） activity and less reactive oxygen species（ROS） accumulation, which suggests that overexpression of AmDUF1517 can improve cotton resistance to stress by maintaining ROS homeostasis, as well as by alleviating cell membrane injury. These results imply that AmDUF1517 is a candidate gene in improving cotton resistance to abiotic stress.

关键词： transgenic cotton stress tolerance AmDUF1517 Ammopiptanthus mongolicus reactive oxygen species