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Journal of Integrative Agriculture 2024年第7期23卷 2346-2361页

作者： Chengxian Sun Yaoguo Qin Julian Chen Zhengxi li Department of Entomology/Ministry of Agriculture key {1. for Monitoring and Environment-friendly Control of Crop Pests College of Plant ProtectionChina Agricultural UniversityBeijing 100193China state {1. {2. for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China

Aphids are major insect pests in agriculture and forestry *** attacks by natural enemies,many aphids release an alarm pheromone to protect their *** most aphids,the main component of the aphid alarm pheromone(AAP)is the sesquiterpene hydrocarbon(E)-β-farnesene(EβF).However,the mechanisms behind its biosynthesis and regulation remain poorly *** this study,we used the bird cherry–oat aphid Rhopalosiphum padi,which is an important wheat aphid,to investigate the regulatory mechanisms of EβF *** results showed that EβF biosynthesis occurs during the mature embryo period and the molting period of the 1.t-and {1.d-instar *** provide the prerequisite material for EβF production and *** on transcriptome sequencing,RNAi analysis,hormone treatments,and quantitative measurements,we found that the biosynthesis of EβF utilizes acetyl coenzyme A produced from fatty acid degradation,which can be suppressed by juvenile hormone but it is promoted by {1.-hydroxyecdysone through the modulation of fatty acid *** is the first systemic study on the modulation of EβF production in *** results of our study provide insights into the molecular regulatory mechanisms of AAP biosynthesis,as well as valuable information for designing potential aphid control strategies.

关键词： (E)-β-farnesene critical period for biosynthesis fatty acid metabolism juvenile hormone 2.-hydroxyecdysone

Effects of resistance training on bone loss in 8 weeks hind{1.mb unloading rats

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Effects of resistance training on bone loss in 8 weeks hindl...

Artificial selection of the Green Revolution gene Semidwarf 1.is implicated in upland rice breeding

中国生理学会第2.届全国会员代表大会暨生理学学术大会

作者： Zhi-li li~(1,2.,Cheng TAN~1,Hui-Juan WANG~1,Wen-Juan CHEN~1,Ye DING~3,Yu ZHU~1,Hong-Lei MA~1,De-Sheng WANG~1,Shi-Zhong JIANG~1,Jun WANG~2.Hong-Hui YANG~1 1 {2. key laboratory of Space Medicine Fundamentals and Application,china Astronaut Research and Training Center,beijing 100094,china 2.Fourth Military Medical {12.,Xi ''an 710032.Shaanxi,china 3 College of Veterinary Medicine,china agricultural {12.,beijing 100193,china

＜正＞Objective:The purpose of this research was to determine the effectiveness of resistance training in attenuating bone loss in hind{1.mb unloading rats undergoing a resistance training program for a period of 8 wee... 详细信息

＜正＞Objective:The purpose of this research was to determine the effectiveness of resistance training in attenuating bone loss in hindlimb unloading rats undergoing a resistance training program for a period of 8 weeks. Methods:Forty male Wistar rats were divided randomly into four groups:an age-matched control group（C,n=10）, a hindlimb unloading group（HU,n=10）,a hindlimb unloading + stand group（HU+S,n=10）,and a hindlimb unloading + resistance-training group（HU+RT,n=10）.In HU+RT,10 rats were resistance trained for 8 *** resistance-training protocol was performed with 4 sets of 12.repetitions 5 days/week using 65%to 75%of one repetition maximum（maximum lifted weight） measured every 2.*** the end of 8 week resistance training, bone mineral density（BMD） and biomechanical properties of the femur were measured by Micro CT and three point bending test ***:Before the resistance training period,all the groups had similar repetition maximums However,at the end of the resistance training period,the repetition maximum in C and HU+RT was approximately 3-fold the body weight more than that in HU and HU+*** significant differences were observed for any of the bone parameters when comparing HU and HU+S rats.C and HU+RT rats had higher trabecular BMD than HU and HU+S *** Thickness（***） was greater in HU+RT than that in HU+***,no significant differences in BMD of cortical bone area were detected among all the groups in the femur *** maximal load and stiffness of the femur midshaft of rats in HU+RT were significantly higher than that in HU,while lower than that in ***:These results demonstrate that the resistance training can counter bone loss completely and mitigate the bone strength reduction caused by simulated weightlessness by hindlimb unloading.

关键词： resistance training hindlimb unloading bone mineral density

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Journal of Integrative Agriculture 2024年第3期23卷 769-780页

作者： Shuliang Jiao Qinyan li Fan Zhang Yonghong Tao Yingzhen Yu Fan Yao Qingmao li Fengyi Hu liyu Huang key {1. of Biology and Germplasm Innovation of Perennial Rice Ministry of Agriculture and Rural Affairs/School of AgricultureYunnan UniversityKunming 650091China state {1. {2. of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Wenshan Academy of agricultural Sciences Wenshan 663000China

Semidwarf breeding has boosted crop production and is a well-known outcome from the first Green Revolution. The Green Revolution gene Semidwarf 1.SD1., which modulates gibberellic acid(GA) biosynthesis, plays a principal role in determining rice plant height. Mutations in SD1.reduce rice plant height and promote lodging resistance and fertilizer tolerance to increase grain production. The plant height mediated by SD1.also favors grain yield under certain conditions. However, it is not yet known whether the function of SD1.in upland rice promotes adaptation and grain production. In this study, the plant height and grain yield of irrigated and upland rice were comparatively analyzed under paddy and dryland conditions. In response to dryland environments, rice requires a reduction in plant height to cope with water deficits. Upland rice accessions had greater plant heights than their irrigated counterparts under both paddy and dryland conditions, and appropriately reducing plant height could improve adaptability to dryland environments and maintain high grain yield formation. Moreover, upland rice cultivars with thicker stem diameters had stronger lodging resistance, which addresses the lodging problem. Knockout of SD1.in the upland rice cultivar IRAT1.4 reduced the plant height and grain yield, demonstrating that the adjustment of plant height mediated by SD1.could increase grain production in dryland fields. In addition, an SD1.genetic diversity analysis verified that haplotype variation causes phenotypic variation in plant height. during the breeding history of rice, SD1.allelic mutations were selected from landraces to improve the grain yield of irrigated rice cultivars, and this selection was accompanied by a reduction in plant height. Thus, five known mutant alleles were analyzed to verify that functional SD1.is required for upland rice production. All these results suggest that SD1.might have undergone artificial positive selection in upland rice, which provides

关键词： Green Revolution Semidwarf 1 high-yield breeding upland rice plant height

Integrated erosion control measures and environmental effects in rocky mountainous areas in northern china

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International Journal of Sediment Research 2010年第3期25卷 294-303页

作者： HE Jijun1, CAI Qiangguo2. li Guoqiang3, and WANG Zhongke41 Ph. D, Lecturer, Capital Normal university, Elementary Educational College, {2. 100048, china state key laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Water and Soil Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712.00 Shanxi, china. 2.Prof., Institute of Geographical Sciences and Natural Resources Research, key laboratory of Water Cycle and Related Land Surface Processes, CAS, {2. 100101, china, 3 Graduate student, Huazhong agricultural university, College of Resources and Environment, wuhan 430070, china 4 Prof., Zhangjiakou Supervision Station of Water Conservancy Project, Zhangjiakou Supervision Sub-station of Soil and Water Conservation and environment, Zhangjiakou 075000, china Ph. D Lecturer Capital Normal University Elementary Educational College Beijing 100048 China state {1. {2. of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Water and Soil Conservation Chinese Academy of Sciences and Ministry of Water Resources Yangling 712100 Shanxi China Prof. Institute of Geographical Sciences and Natural Resources Research Key Laboratory of Water Cycle and Related Land Surface Processes CAS Beijing 100101 China Graduate student Huazhong Agricultural University College of Resources and Environment wuhan 430070 China Prof. Zhangjiakou Supervision Station of Water Conservancy Project Zhangjiakou Supervision Sub-station of Soil and Water Conservation and environment Zhangjiakou 075000 China

Based on observations of runoff plots and field investigations of gully cross-sections, impacts of various soil and water conservation measures on runoff and sediment yield are analyzed for different rainfall conditions. The results show that antecedent rainfall and rainfall intensity are the main factors affecting the runoff and soil erosion processes. Rainfall events with antecedent rainfall can produce high runoff and sediment yield. Large differences in the characteristics of two rainfall events will result in greater variations of total runoff and sediment yield from the same runoff plot. Under the same soil control measure and rainfall condition, soil and water conservation measures can reduce the impacts of antecedent rainfall and rainfall intensity on runoff and soil erosion. Among various measures, level terrace seems to be the greatest for soil conservation purposes. Combining with engineering measures,Vegetation measures is also effective in controlling runoff and soil erosion. In the initial stage of vegetation enclosure measures, engineering measure is necessary to improve the environment for ecological recovery. Gully head protection can control gully erosion effectively, but the effectiveness of gully head protection would be reduced when rainfall intensity increases. Therefore, the design of a gully head protection structure must be based on local hydrological conditions.

关键词： Rainfall character Antecedent rainfall Gully head protection Cumulated erosion amount

Endogenous biosynthesis of docosahexaenoic acid(DHA)regulates fish oocyte maturation by promoting pregnenolone production

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Zoological Research 2024年第1期45卷 176-188页

作者： Yi li Xuehui li Ding Ye Ru Zhang Chengjie liu Mudan He Houpeng Wang Wei Hu Yonghua Sun state {1. {2. of Freshwater Ecology and Biotechnology Institute of HydrobiologyInnovation Academy for Seed DesignChinese Academy of SciencesWuhanHubei 430072China College of Advanced agricultural Sciences University of Chinese Academy of SciencesBeijing 100049China Hubei Hongshan laboratory WuhanHubei 430070China

Omega-3 polyunsaturated fatty acids(n-3 PUFAs),particularly docosahexaenoic acid(2.:6n-3,DHA),play crucial roles in the repro{1.ctive health of vertebrates,including ***,the underlying mechanism related to this phenomenon remains largely *** this study,we employed two zebrafish genetic models,i.e.,elovl2.(-/-)mutant as an endogenous DHAdeficient model and fat1.omega-3 desaturase encoding gene)transgenic zebrafish as an endogenous DHA-rich model,to investigate the effects of DHA on oocyte maturation and *** show that the elovl2.(-/-)mutants had much lower fecundity and poorer oocyte quality than the wild-type controls,while the fat1.zebrafish had higher fecundity and better oocyte quality than wildtype *** deficiency in elovl2.(-/-)embryos led to defects in egg activation,poor microtubule stability,and re{1.ced pregnenolone *** study revealed that DHA promoted pregnenolone synthesis by enhancing transcription of cyp1.a1.which encodes the cholesterol side-chain cleavage enzyme,thereby stabilizing microtubule assembly {1.ring *** turn,the hypothalamic-pituitary-gonadal axis was enhanced by *** conclusion,using two unique genetic models,our findings demonstrate that endogenously synthesized DHA promotes oocyte maturation and quality by promoting pregnenolone pro{1.ction via transcriptional regulation of cyp1.a1.

关键词： Docosahexaenoic acid Oocyte maturation Oocyte quality Pregnenolone Microtubule

Mapping quantitative trait loci for cell-mediated immunity in the pig

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Mapping quantitative trait loci for cell-mediated immunity i...

Hierarchically Structured Nb_(2.O_5 Microflowers with Enhanced Capacity and Fast-Charging Capabi{1.ty for Flexible Planar Sodium Ion Micro-Supercapacitors

第十五次全国动物遗传育种学术讨论会

作者： Xin LU~1,Yuan-Fang GONG~(1,2.,Qin ZHANG~1 1.key laboratory Animal Genetics and Breeding of the Ministry of {2.,state key laboratory of agrobiotechnology, College of Animal Science and Technology,china {2. university,beijing 100193,china 2.Department of Animal Science,Hebei Normal university of Science and Technology,Chang li,Hebei 066600,china

＜正＞Introduction Genetic improvement of general immune capacity is an effective way to increase disease resistance and enhance the welfare and productivity of farm ***-mediated immune traits are essential diagnostic... 详细信息

关键词： cell-mediated immune traits quantitative trait loci swine

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Nano-Micro Letters 2024年第4期16卷 97-109页

作者： Jiaxin Ma Jieqiong Qin Shuanghao Zheng Yinghua Fu liping Chi Yaguang li Cong Dong Bin li Feifei Xing Haodong Shi Zhong‑Shuai Wu state {1. {2. of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of Sciences457 Zhongshan RoadDalian 116023People’s Republic of China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001People’s Republic of China College of Science Henan Agricultural UniversityNo.63 Agricultural RoadZhengzhou 450002People’s Republic of China Dalian National {1. for Clean Energy Chinese Academy of Sciences457 Zhongshan RoadDalian 116023People’s Republic of China university of Chinese Academy of Sciences 19A Yuquan RoadShijingshan DistrictBeijing 100049People’s Republic of China Hebei key Lab of Optic‑Electronic Information and Materials The College of Physics Science and TechnologyInstitute of Life Science and Green DevelopmentHebei UniversityBaoding 071002People’s Republic of China

Planar Na ion micro-supercapacitors(NIMSCs) that offer both high energy density and power density are deemed to a promising class of miniaturized power sources for wearable and portable microelectron-ics. Nevertheless, the development of NIMSCs are hugely impeded by the low capacity and sluggish Na ion kinetics in the negative ***, we demonstrate a novel carbon-coated Nb_(2.O_5 microflower with a hierarchical structure composed of vertically intercrossed and porous nanosheets, boosting Na ion storage performance. The unique structural merits, including uniform carbon coating, ultrathin nanosheets and abun-dant pores, endow the Nb_(2.O_5 microflower with highly reversible Na ion storage capacity of 2.5 mAh g^(-1. at 0.2. C and excellent rate *** from high capacity and fast charging of Nb_(2.O_5 microflower, the planar NIMSCs consisted of Nb_(2.O_5 negative electrode and activated car-bon positive electrode deliver high areal energy density of 60.7 μWh cm^(-2.,considerable voltage window of 3.5 V and extraordinary cyclability. Therefore, this work exploits a structural design strategy towards electrode materials for application in NIMSCs, holding great promise for flexible microelectronics.

关键词： Nb_(2.O_5 nanosheets Microflowers Sodium ion micro-supercapacitors Flexibility Energy storage

GLB prevents tumor metastasis of Lewis lung carcinoma by inhibiting tumor adhesion actions

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Acta Pharmacologica Sinica 2005年第7期26卷 881-886页

作者： Yan PAN~2.Qian-liu SONG~2.Yan-hua liN~2.{2. LU~2.He-ming YU~3 Xue-jun li~(2.4) 2.Department of Pharmacology,School of Basic Medical Sciences and state key laboratory of Natural Biomimetic Drugs,Peking university,beijing 100083,china 3 National Research Institute for Family Plan{2.,beijing 100081,china Department of Pharmacology School of Basic Medical Sciences and State Key Laboratory of Natural Biomimetic Drugs Peking University Beijing China National Research Institute for Family Planning Beijing China

Aim:To investigate the inhibitory effect of a new compound of GLB on tumormetastasis in vivo and analyze its actions on tumor cell adhesion to clarify ***:The effect of GLB on tumor metastasis was analyzed byLewis lung carcinoma *** pathological morphology of lung alveolar wasevaluated by hematoxylin-eosin *** effect of GLB on the proliferation ofhuman pro{2. cancer cell（PC-3M,with a high metastatic characteristic）wasstudied using the MTT method,and its actions on PC-3M cell adhesion to humanumbilical vein endothelial cells（HUVEC）and laminin were analyzed in ***:GLB(1.0 mg·kg-1.d-1.or 2. d,ig)reduced the number of lung colonies ofLewis lung carcinoma metastasis significantly（P1.and laminin（Pliferative action on ***:GLB has anti-tumor metastatic activity,which partly dependson its inhibition of tumor adhesion.

关键词： neoplasm metastasis adhesion carcinoma Lewis lung

Genomic characterization of peritoneal lavage cytology-positive gastric cancer

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Chinese Journal of Cancer Research 2024年第1期36卷 66-77页

作者： Zhouqiao Wu Tingfei Gu Changxian Xiong Jinyao Shi Jingpu Wang Ting Guo Xiaofang Xing Fei Pang ning He Ru{1.n Miao Fei Shan Yuan Zhou Ziyu {1. Jiafu Ji key {1. of Carcinogenesis and Translational Research(Ministry of Education/{2.) Gastrointestinal Cancer CenterPeking University Cancer Hospital&InstituteBeijing 100142China Department of Biomedical Informatics Department of Physiology and PathophysiologyCenter for Noncoding RNA MedicineMOE Key Lab of Cardiovascular SciencesSchool of Basic Medical SciencesPeking UniversityBeijing 100191China state {1. {2. of Holistic Integrative Management of Gastrointestinal Cancers Beijing Key Laboratory of Carcinogenesis and Translational ResearchGastrointestinal Cancer CenterPeking University Cancer Hospital&InstituteBeijing 100142China

Objective: Positive peritoneal lavege cytology(CY1. gastric cancer is featured by dismal prognosis, with high risks of peritoneal metastasis. However, there is a lack of evidence on pathogenic mechanism and signature of CY1.nd there is a continuous debate on CY1.therapy. Therefore, exploring the mechanism of CY1.is crucial for treatment strategies and targets for CY1.gastric ***: In order to figure out specific driver genes and marker genes of CY1.gastric cancer, and ultimately offer clues for potential marker and risk assessment of CY1. 1. cytology-positive gastric cancer patients and 31.atched cytology-negative gastric cancer patients were enrolled in this study. The enrollment criteria were based on the results of diagnostic laparoscopy staging and cytology inspection of exfoliated cells. Whole exome sequencing was then performed on tumor samples to evaluate genomic characterization of cytology-positive gastric ***: Least absolute shrinkage and selection operator(LASSO) algorithm identified 43 cytology-positive marker genes, while Mut Sig CV identified 4{1.cytology-positive specific driver genes. CD3G and CDKL{1.were both driver and marker genes of CY1. Regarding mutational signatures, driver gene mutation and tumor subclone architecture, no significant differences were observed between CY1.and negative peritoneal lavege cytology(CY0).Conclusions: There might not be distinct differences between CY1.and CY0, and CY1.might represent the progression of CY0 gastric cancer rather than constituting an independent subtype. This genomic analysis will thus provide key molecular insights into CY1. which may have a direct effect on treatment recommendations for CY1.nd CY0 patients, and provides opportunities for genome-guided clinical trials and drug development.

关键词： Cytology gastric carcinoma peritoneal metastasis whole exome sequencing

White light generation by regulating hydrogen bond-sensitive ESPT of naphthalimide dyes

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Chinese Chemical Letters 2024年第1期35卷 361-365页

作者： Jin li Qinglong Qiao {1. Xu Wei Zhou Jingli Yuan Zhaochao Xu state {1. {2. of Fine Chemicals School of ChemistryDalian University of TechnologyDalian 116024China CAS key {1. of Separation Science for Analytical Chemistry Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China university of Chinese Academy of Sciences Beijing 100049China

White light emitting systems of pure organic materials have attracted extensive research interest {1.e to their better compatibility and functional *** reported organic white light materials are mainly based on the multi-channel emission regulation of the compound itself or the mixing of multicolor luminescence materials,but studies on the dependence between multicolor luminescence and the external environment are lacking,which limits the application of these materials in areas such as identification and *** paper reports that the 4-or 3?hydroxyl-substituted naphthalimides NapH1.and NapH2.form intermolecular hydrogen bonds with adjacent molecules in the environment,and undergo excited-state intermolecular proton transfer under irradiation,resulting in blue-yellow or blue-red {1.al fluorescence emission,*** the two compounds have different two-color luminescence channels and the two-color intensity ratio is affected by the environment,and the intermolecular hydrogen bond is determined by the hydrogen bond receptor,polarity,and temperature in the environment,the full spectrum from blue to red light and white light emission can be obtained by adjusting the mixing ratio of the two dyes and the solvent polarity and the ambient *** environmentally sensitive white emission is used to detect the alkalinity of different papers,and the dyed paper can be used as a test strip for acid-base vapor detection.

关键词： White light ESPT Hydrogen bond Naphthalimide Double emission