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Oriental Reed Warblers do not abandon Common Cuckoo chicks during prolonged nestling periods

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Avian Research 2024年第3期 369-373页

作者： Hanlin Yan Huahua Zhao Haixia Luo Longwu Wang Laikun Ma Wei Liang Ministry of Education Key Laboratory for Ecology of Tropical Islands Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province College of Life Sciences Hainan Normal University School of life sciences Guizhou Normal University School of life sciences Hebei University Department of Biology and Food Science Hebei Normal University for Nationalities

The Oriental Reed Warbler(Acrocephalus orientalis) is one of the most commonly used hosts for the parasitic Common Cuckoo(Cuculus canorus). However, as hosts that feed unrelated parasitic nestlings may suffer extra reproductive costs, they may be less willing to care for nestlings that have prolonged nestling periods. To test this hypothesis, the duration of feeding by Oriental Reed Warblers under natural conditions for their own nestlings was compared with the duration of feeding under natural conditions for Common Cuckoo nestlings and for artificially prolonged cuckoo nestlings. The results showed that Oriental Reed Warblers did not starve, drive away, or desert any of the nestlings in the experiment, and neither parent was left alone. Our experimental study indicates that both Oriental Reed Warbler parents were willing to care for nestlings with a prolonged nestling period(up to 30 days, twice the average duration time that the Oriental Reed Warblers fed their own chicks in natural conditions). However, further experiments and observations are required in other host bird species to examine whether both parents or one of the parents may exhibit the behavior of abandoning nestlings with a prolonged nestling period.

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Research progresses and prospects of multi-sphere compound extremes from the Earth System perspective

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Science China Earth sciences 2024年第2期67卷 343-374页

作者： Zengchao HAO Yang CHEN college of Water sciences Beijing Normal UniversityBeijing100875China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing100081China

Compound extremes,whose socioeconomic and ecological impacts are severer than that caused by each event occurring in isolation,have evolved into a hot topic in Earth Science in the past *** the context of climate change,many compound extremes have exhibited increasing frequency and intensity,and shown novel fashions of combinations,posing more pressing demands and tougher challenges to scientific research and disaster prevention and *** article,via a perspective of multi-sphere interactions within the Earth System,systematically reviews the status quo,new scientific understanding,and deficiencies regarding the definition,mechanism,change,attribution,and projection of compound *** study also sorts out existing challenges and outlines a potential roadmap in advancing the study on compound extremes with respect to data requirement,mechanistic diagnosis,numerical modeling,attribution and projection,risk assessment,and adaptive *** directions of compound extremes studies and key research topics that warrant multi-disciplinary and multisectoral coordinated efforts are also *** that climate change has reshaped the type of extremes,a transformation from the traditional single-event perspective to a compound-event perspective is needed for scientific research,disaster prevention and mitigation,and climate change adaptation,calling for bottom-up innovation in research objects,ideas,and *** article will add value to promoting the research on compound extremes and interdisciplinary cooperations.

关键词： Extremes Compound extremes Climate change and risk Multi-sphere interactions

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

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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 *** this study,we identified the drought tolerance gene NfcrtO,which encodes aβ-carotene ketolase,through screening the transcriptome of *** under water loss *** expression of NfcrtO under 0.6 mol/L sorbitol or under 0.3 mol/L NaCl stress significantly increased the growth rate of Escherichia *** 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 *** analysis revealed that NfcrtO was involved in osmotic stress,antioxidant,and other stress-related ***,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 *** 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 ***,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 *** two-hybrid analysis identified interactions between NfcrtO and Dna J protein,E3 ubiquitin-protein ligase,and pyrophosphate-energized vacuolar membrane proton ***,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

Neurokinin-2 receptor antagonist SR48968 induced necroptosis of myeloid leukemia cells by calcium overload-driven reactive oxygen species accumulation

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Genes & Diseases 2024年第5期11卷 33-35页

作者： Zhibin Yan Xiangyu Hong Qihao Lin Leijie Wang Gang Shao Chentao Ge Ruilong Xia Caiyun Fu Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine College of Life Sciences and MedicineZhejiang Sci-Tech UniversityHangzhouZhejiang 310018China college of life sciences China Jiliang UniversityHangzhouZhejiang 310018China

Increasing evidence highlight tachykinin receptors as a prominent player in hematological *** previously revealed the proto-oncogenic role of neurokinin-1 receptor(NK-1R)in acute myeloid leukemia(AML),1 whereas the role of neurokinin-2 receptor(NK-2R)has not been ***,we found NK-2R was significantly up-regulated in AML patients in The Cancer Genome Atlas *** result was further confirmed in blood from AML patients and a range of human leukemia ***,we verified that blocking NK-2R by SR48968 markedly promoted cell death in human myeloid leukemia without cytotoxicity to normal ***,we uncovered that SR48968 induced cytotoxicity through necroptosis mediated by calcium overload-driven reactive oxygen species(ROS)*** summary,our results propose that NK-2R antagonist SR48968 may be used as a new therapeutic approach for myeloid leukemia.

关键词： myeloid antagonist markedly

Bimagnetic metal constructed core-shell structure of Fe@Co nanowires for multi-band microwave absorption

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Progress in Natural Science:Materials International 2024年第2期34卷 354-361页

作者： Ping-an Yang Rui Cai Haibo Ruan Nanqing Zhang Xin Huang Rui Li Yuxin Zhang Yi Lu Zhihao Zhou School of Automation Chongqing University of Posts and Telecommunications Chongqing Key Laboratory of Materials Surface & Interface Science Chongqing University of Arts and Sciences college of Engineering and Technology Zunyi Normal College college of Material Science and Engineering Chongqing University

Controlled fabrication of materials by surface modification techniques has been a hot research topic. In this paper,one-dimensional(1D) core-shell structure Fe@Co nanowires(NWs) were successfully prepared by anchoring 0-dimensional(0D) Co nanoparticles on 1D Fe NWs based on the in situ reduction method. The electromagnetic parameters of the specimens at a filler mass fraction of 25 wt% were tested and the microwave loss mechanism was deeply analyzed. Binary magnetic metals in a core-shell structure have excellent multi-band microwave absorption capability(S-band, X-band and Ku-band). This is due to the heterogeneous interface and magnetic coupling effects tuning the dielectric and magnetic loss. This study offers a workable plan for creating effective multi-band magnetic metal-based microwave absorbers.

关键词： Core-shell structure Interface Magnetic coupling Microwave absorption One-dimensional nanowires

THE BOUNDEDNESS OF OPERATORS ON WEIGHTED MULTI-PARAMETER LOCAL HARDY SPACES

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Acta Mathematica Scientia 2024年第1期44卷 386-404页

作者：丁卫汤彦朱月萍 School of sciences Nantong UniversityNantong226007China Department of Mathematics Nantong Normal CollegeNantong226010China

Though atomic decomposition is a very useful tool for studying the boundedness on Hardy spaces for some sublinear operators,untill now,the boundedness of operators on weighted Hardy spaces in a multi-parameter setting has been established only by almost orthogonality *** this paper,we mainly establish the boundedness on weighted multi-parameter local Hardy spaces via atomic decomposition.

关键词： weighted multi-parameter local Hardy spaces atomic decomposition boundedness inhomogeneous Journéclass

Characterizing the complete mitochondrial genome of Psephenothrips eriobotryae Dang&Qiao(Thysanoptera:Phlaeothripidae)with massive gene arrangement in Phlaeothripidae

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Zoological Systematics 2024年第2期49卷 116-128页

作者： Lihong Dang Chengwen Li Dongxue Wang Yuxin Gao Linpeng Zhao Bin Zhang School of Biological Science&Engineering Shaanxi University of TechnologyHanzhong 723000China Engineering Research Center of Quality Improvement and Safety Control of Qinba Special Meat Products Universities of Shaanxi ProvinceHanzhong 723000China shaanxi Changqing National Nature Reserve Changqing JiayuanNo.176Hanzhong 723000China college of life sciences&Technology Inner Mongolia Normal UniversityHohhot 010022China

Each species within the order Thysanoptera has a distinct mitochondrial gene order displaying a high level of gene rearrangement,particularly massive in *** understand the evolutionary patterns of rearrangement in this family,we sequenced the complete mitochondrial genome of Psephenothrips eriobotryae,a notable potential pest of loquat *** mitogenome is a circular DNA molecule(15,413 bp in size)composed of 37 genes:13 PCGs,22 tRNAs,two rRNAs,and two putative control regions(CRs).By comparing with the ancestral mitogenome of arthropods,*** exhibits notable gene rearrangement ***,it shares four conserved gene blocks with three closely related species in *** the phylogenetic tree,*** was clustered with these three leaffeeding Phlaeothripinae *** presence of more similar conserved gene blocks probably indicates a strong correlation between gene rearrangements and the phylogeny within ***,the mitogenome of *** shows some characteristics:(a)two putative CRs in which CR2 is the copy of partial CR1 with 99.62%sequence similarity,and CR1 consists of two 237 bp repeat unites;(b)high A+T content of 82.6%in overall base composition;(c)trn S1 lacking a complete dihydrouridine(DHU)arm;(d)the protein coding gene,atp8 started with TTG instead of the more common ATN,while nad3 terminated by TAG rather than TAA;(e)translocations and inversions observed in fifteen of the 37 genes.

关键词： Mitogenome structure phylogenetic relationships Liothrips-lineage repeat regions

Identification of an immune-related gene signature for predicting prognosis and immunotherapy efficacy in liver cancer via cell-cell communication

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World Journal of Gastroenterology 2024年第11期30卷 1609-1620页

作者： Jun-Tao Li Hong-Mei Zhang Wei Wang Dong-Qing Wei college of Mathematics and Information Science Henan Normal UniversityXinxiang 453007Henan ProvinceChina college of Computer and Information Engineering Henan Normal UniversityXinxiang 453007Henan ProvinceChina State Key Laboratory of Microbial Metabolism and School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghai 200240China

BACKGROUND Liver cancer is one of the deadliest malignant tumors *** has provided hope to patients with advanced liver cancer,but only a small fraction of patients benefit from this treatment due to individual *** immune-related gene signatures in liver cancer patients not only aids physicians in cancer diagnosis but also offers personalized treatment strategies,thereby improving patient survival *** several methods have been developed to predict the prognosis and immunotherapeutic efficacy in patients with liver cancer,the impact of cell-cell interactions in the tumor microenvir-onment has not been adequately *** To identify immune-related gene signals for predicting liver cancer prognosis and immunotherapy *** Cell grouping and cell-cell communication analysis were performed on single-cell RNA-sequencing data to identify highly active cell groups in immune-related *** active immune cells were identified by intersecting the highly active cell groups with B cells and T *** significantly differentially expressed genes between highly active immune cells and other cells were subsequently selected as features,and a least absolute shrinkage and selection operator(LASSO)regression model was constructed to screen for diagnostic-related *** genes that were selected more than 5 times in 10 LASSO regression experiments were included in a multivariable Cox regression ***,3 genes(stathmin 1,cofilin 1,and C-C chemokine ligand 5)significantly associated with survival were identified and used to construct an immune-related gene *** The immune-related gene signature composed of stathmin 1,cofilin 1,and C-C chemokine ligand 5 was identified through cell-cell *** effectiveness of the identified gene signature was validated based on experi-mental results of predictive immunotherapy response,tumor mutation burden analysis,immune cell infiltrat

关键词： Liver cancer Cell-cell communication Gene signature Prognosis Immunotherapy Single-cell RNA sequencing

Leucine regulates lipid metabolism in adipose tissue through adipokine-mTOR-SIRT1 signaling pathway and bile acid—microbe axis in a finishing pig model

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Animal Nutrition 2024年第1期16卷 158-173页

作者： Yunju Yin Saiming Gong Mengmeng Han Jingzun Wang Hanjing Shi Xianji Jiang Liu Guo Yehui Duan Qiuping Guo Qinghua Chen Fengna Li Key Laboratory of Agro-ecological Processes in Subtropical Region Institute of Subtropical AgricultureChinese Academy of SciencesHunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic ProcessHunan Provincial Engineering Research Center for Healthy Livestock and Poultry ProductionChangsha 410125China college of Animal Science and Technology Hunan Agricultural UniversityChangsha 410128China college of Modern Agricultural sciences University of Chinese Academy of SciencesBeijing 100049China college of life Science and Engineering Northwest Minzu UniversityLanzhou 730124China college of life sciences Hunan Normal UniversityChangsha 410128China

This study was conducted to explore the regulatory mechanism of leucine(Leu)on lipid metabolism of finishing ***-four Duroc×Landrace×Large cross pigs with an average body weight of68.33±0.97 kg were randomly allocated into 3 treatment groups with 8 replicates per group(1 pig per replicate).The dietary treatments were as follows:control group(CON),0.25%Leu group and 0.50%Leu *** experimental period was 42 *** results showed as follows.(1)Compared with the CON,0.25%and 0.50%Leu increased(Pliferatoractivated receptorγ(PPARγ)were decreased but the level of fatty acid binding protein 4(FABP4)and fatty acid translocase(FAT/CD36)were increased in backfat *** the 0.25%Leu group,the protein levels of p-Rictor,p-Raptor,p-eIF4E-binding protein 1(p-4EBP1),p-silent mating type information regulator 2homolog 1(p-SIRT1)and acetylation ribosome s6 protein kinase 1(Ac—S6K1)were increased(P<0.05).(3)Compared to the CON,the diversity of gut microbiota in the 0.25%Leu group was *** component analysis showed that the relative abundance of Bacteroidetes,Lactobacillus and Desulfovibrio was higher in the 0.25%Leu group than the CON,but the relative abundance of Firmicutes,Treponema and Shigella was lower than in the CON(P<0.05).(4)Four different metabolites were screened out from the serum of finishing pigs including allolithocholic acid(alloLCA),isolithocholic acid(isoLCA),ursodeoxycholic acid(UDCA)and hyodeoxycholic acid(HDCA),which correlate to various degrees with the above *** conclusion,Leu could promote adipose tissue lipolysis of finishing pigs through the mTOR-SIRT1 signaling pathway,a

关键词： Leu Lipid metabolism Gut microbiota Bile acid