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Toxicity and horizontal transfer of bifenthrin and dimefluthrin against the red imported fire ant, Solenopsis invicta Buren(Hymenoptera: Formicidae), and the efficacy of their dust applications in the field

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Journal of Integrative Agriculture 2023年第5期22卷 1465-1476页

作者： LIANG Ming-rong SHUANG You-ming DENG Jie-fu PENG Li-ya ZHANG Sen-quan ZHANG Chen XU Yi-juan LU Yong-yue WANG Lei Red Imported Fire Ant Research center South China Agricultural UniversityGuangzhou 510642P.R.China shenzhen agricultural science and technology promotion center Shenzhen Administration for Market RegulationShenzhen 518057P.R.China

The red imported fire ant,Solenopsis invicta Buren,poses a significant threat to biodiversity,agriculture,and public health in its introduced *** chemicals such as toxic baits and dust are the main methods for *** control,toxic baits are slow,requiring approximately one or two weeks,but dust can eliminate the colony of fire ants rapidly in just three to five *** explore more active ingredients for fire ant control using dusts,the toxicity of bifenthrin and dimefluthrin,the horizontal transfer of bifenthrin and dimefluthrin dust and their efficacy in the field were *** results showed that the LD50(lethal dose) values of bifenthrin and dimefluthrin were 3.40 and 1.57 ng/ant,*** KT50(median knockdown time) and KT95(95%knockdown time) values of a 20μg mL^(–1)bifenthrin dose were 7.179and 16.611 min,*** KT50and KT95of a 5μg mL^(–1)dimefluthrin dose were 1.538 and 2.825 min,*** horizontal transfers of bifenthrin and dimefluthrin among workers were *** mortality of recipients (secondary mortality) and secondary recipients (tertiary mortality) were both over 80%at 48 h after 0.25,0.50 and 1.00%bifenthrin dust *** secondary mortality of recipients was over 99%at 48 h after 0.25,0.50 and 1.00% dimefluthrin dust treatments,but the tertiary mortality was below 20%.The field trial results showed that both bifenthrin and dimefluthrin exhibited excellent fire ant control effects,and the comprehensive control effects of 1.00%bifenthrin and dimefluthrin dusts at 14 d post-treatment were 95.87 and 85.70%,respectively.

关键词： red imported fire ant pyrethroids secondary transfer tertiary mortality contact toxic dust

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Development of herbicide resistance genes and their application in rice

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The Crop Journal 2022年第1期10卷 26-35页

作者： Man Jin Lei Chen Xing Wang Deng Xiaoyan Tang shenzhen Institute of Molecular Crop Design Shenzhen 518107GuangdongChina Guangdong Provincial Key Laboratory of Biotechnology for Plant Development School of Life SciencesSouth China Normal UniversityGuangzhou 510631GuangdongChina Institute of Plant and Food sciences Department of BiologySouthern University of Science and TechnologyShenzhen 518055GuangdongChina shenzhen agricultural technology promotion center Shenzhen 518055GuangdongChina

Rice is one of the most important food crops in the *** seriously affect the rice yield and grain *** recent years,there are tremendous progresses in the research and application of herbicideresistant genes in rice *** article reviews the working mechanisms of six herbicides(glyphosate,glufosinate,acetolactate synthase inhibitor herbicides,acetyl-Co A carboxylase inhibitor herbicides,hydroxyhenylpyruvate dioxygenase(HPPD)inhibitor herbicides and dinitroaniline herbicides),the resistance mutations of the corresponding herbicide-target genes,and the herbicide detoxification mechanisms by non-target *** are provided on herbicide-resistant rice materials obtained by transformation of exogenous resistance genes,by artificial mutagenesis and mutant screening,and by modifying the target genes through gene *** paper also introduces the current application of herbicide-resistant rice,points out problems that may be caused by utilization of herbicide resistant rice and solutions to the problems,and discusses the future prospects for the development of herbicideresistant rice.

关键词： Rice Herbicides Herbicide resistant genes Gene editing Mutant

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High-Throughput MicroRNA and mRNA Sequencing Reveals that MicroRNAs May Be Involved in Pectinesterase-Mediated Cold Resistance in Potato

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Phyton-International Journal of Experimental Botany 2020年第3期89卷 561-586页

作者： Chongchong Yan Qianqian Wang Nan Zhang Jiajia Wang Xuexiang Ren Bingjie Xue Xiaojing Pu Zhihong Xu Huajun Liao Anhui Academy of agricultural sciences Hefei230031China Anhui Vocational College of City Management Hefei231635China Funan County agricultural technology promotion center Funan236300China Jieshou County agricultural technology promotion center Jieshou236500China

Since potato cultivars are sensitive to low temperature,cold injury severely affects the geographical distribution and yield of *** some miRNAs have been identified in response to cold stress in plants,there is no report about the role of miRNAs in the response to cold stress in ***,via high throughput sequencing,we described the profiling of cold stress response to miRNA and mRNA in *** small RNA and six mRNA libraries were constructed and sequenced.296 known and 211 novel miRNAs were identified,in which 34 miRNAs in Cold Group(CG)had the higher expression quantity than which in Normal Group(NG)and 32 in CG had lower expression quantity than which in NG.3068 differentially expressed genes were detected between NG and CG,in which 1400 genes were up-regulated and 1668 genes were *** metabolism pathway of starch and sucrose(ko00500)is the common KEGG pathway in differentially expressed miRNA and *** this pathway,StuPME21575 and StuPME42971 are pectinesterase which mainly catalyzes the pectin-forming pectate,which are controlled by stu-miR6023 and *** the potato suffering cold stress,these two miRNAs expression levels became higher,but their target genes expression levels were just opposite and this result is the same with qRT-PCR.

关键词： Potato microRNA RNA-Seq low-temperature stress pectinesterase

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Morphological diversity and correlation analysis of phenotypes and quality traits of proso millet(Panicum miliaceum L.)core collections

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Journal of Integrative Agriculture 2019年第5期18卷 958-969页

作者： ZHANG Da-zhong Rabia Begum Panhwar LIU Jia-jia GONG Xiang-wei LIANG Ji-bao LIU Minxuan LU Ping GAO Xiao-li FENG Bai-li College of Agronomy Northwest A&F University agricultural technology promotion center of Shenmu City Institute of Crop sciences Chinese Academy of Agricultural Sciences

Genetic diversity and comprehensive performance are the basis for the discovery and efficient use of proso millet(Panicum miliaceum L.) core collections. In this study, 386 proso millet core collections were used as materials to observe inflorescence color, leaf phase, inflorescence density, axis shape, branched spike length, panicle type, trichome, measured area of the top3 leaves, and chlorophyll content of the top3 leaves at filling stage. These core collections were also used to record growth period, plant height, diameter of main stem, plant tiller number, branch number, panicle length, panicle number per plant, and panicle weight per plant at the maturation stage. Starch, fat, protein, and yellow pigment contents in the grain and 1 000-seed weight were also measured after harvest. Then, quantitative traits were used for diversity analysis and comprehensive evaluation of each collection. Correlations between all traits were also analyzed. Results showed that among the 8 quality traits, the Shannon index(H′) of hull color was the highest(1.588) followed by the H′ of inflorescence density(0.984). However, inflorescence color and axis shape were lower. The H′ of 16 quantitative traits were significantly higher than the quality traits with the following traits having the highest indices: fat content(2.092), 1 000-seed weight(2.073), top3 leaves area(2.070), main stem diameter(2.056), and plant height(2.052). Furthermore, all other traits had a diversity higher than 1.900. After a comprehensive evaluation of phenotypic traits, plant height, diameter of main stem, plant tiller number, leaf area of top3 leaves, and 1 000-seed weight were the biggest contributors to the principal components. Six high-fat and high-protein cultivars, including Nuoshu, A75-2, Zhiduoaosizhi, Panlonghuangmi, Xiaobaishu, and Xiaohongshu were also screened. Correlations between the quantitative traits were significant, including the correlation between quality traits and quantitative traits.

关键词： proso millet phenotypic traits quality diversity correlation evaluation

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Silicon reduces cadmium accumulation in Moso bamboo(Phyllostachys edulis)root cell sap by sequestering cadmium in hemicellulose 1

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Pedosphere 2024年第6期34卷 1002-1013页

作者： Yuzhen CHANG Fan YANG Chaofeng YANG Yiting ZHENG Xianyu PAN Shanshan MA Haibao JI Ji Feng SHAO State Key Laboratory of Subtropical Silviculture Zhejiang Agriculture and Forestry University agricultural and Forestry technology promotion center of Lin'an

Moso bamboo is one of the most important economic bamboo species in China, but cadmium（Cd） pollution has become a potential threat of its sustainable development. Silicon（Si） reduces Cd accumulation in many plant species. However, the exact mechanisms of this effect in Moso bamboo are still poorly understood. Here, we investigated the effect of Si on Cd accumulation in Moso bamboo in terms of Cd concentration in roots, Cd cellular and subcellular distribution, root cell morphology, and gene expression. Seedlings（ten days old） were exposed to different concentrations of Cd(0, 1, 5, and 50 μmol L-1) in a 0.5 mmol L-1CaCl2solution treated with（+Si） and without（-Si） 1 mmol L-1Si（as silicic acid） for two days. The effect of Si on the alleviation of Cd-induced inhibition of root elongation was not obvious, but Si could significantly reduce Cd accumulation in roots at all tested Cd concentrations(1, 5, and50 μmol L-1). Cadmium was localized in all cells of roots, but Si application altered the Cd distribution from all cells to distal side of exodermis cells in roots. Semi-quantitative determination of Cd using energy-dispersive X-rays revealed higher Cd concentrations in exodermis, but lower concentrations in the stele when Si was applied. However, Si increased Cd accumulation in root cell wall, but decreased it in cell sap. Moreover, more than 70% of Cd and Si were found in hemicellulose 1 of the cell wall. These results suggested that Si reduced Cd accumulation by sequestering Cd in hemicellulose 1 in the root cell wall at the subcellular level and retaining most of the Cd in the root exodermis at the cellular level in Moso bamboo under short-term Si application.

关键词： apoplast cell wall heavy metals pectin seedling symplast

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Ratiometric fluorescent Si-FITC nanoprobe for immunoassay of SARS-CoV-2 nucleocapsid protein

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Nano Research 2023年第2期16卷 2859-2865页

作者： Guobin Mao Silu Ye Wen Yin Yang Yang Xinghu Ji Jin He Yingxia Liu Junbiao Dai Zhike He Yingxin Ma CAS Key Laboratory of Quantitative Engineering Biology Guangdong Provincial Key Laboratory of Synthetic Genomics and Shenzhen Key Laboratory of Synthetic GenomicsShenzhen Institute of Synthetic BiologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China State Key Laboratory of agricultural Microbiology College of Life Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China shenzhen Key Laboratory of Pathogen and Immunity National Clinical Research Center for Infectious DiseaseState Key Discipline of Infectious DiseaseShenzhen Third People's HospitalSecond Hospital Affiliated to Southern University of Science and TechnologyShenzhen 518112China College of Chemistry and Molecular sciences Wuhan UniversityWuhan 430072China

Coronavirus disease 2019(COVID-19)highlights the importance of rapid and reliable diagnostic assays for the management of virus ***,we developed a one-pot hydrothermal method to prepare Si-FITC nanoparticles(NPs)for the fluorescent immunoassay of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)nucleocapsid protein(N protein).The synthesis of Si-FITC NPs did not need post-modification,which addressed the issue of quantum yield reduction during the coupling ***-FITC NPs showed two distinct peaks,Si fluorescence atλem=385 nm and FITC fluorescence atλem=490 *** the presence of KMnO_(4),Si fluorescence was decreased and FITC fluorescence was ***,in the presence of N protein,catalase(CAT)-linked secondary antibody/reporter antibody/N protein/capture antibody immunocomplexes were formed on ***,hydrogen peroxide(H_(2)O_(2))and Si-FITC NPs/KMnO_(4)were injected into the microplate *** decomposition of H_(2)O_(2)by CAT resulted in remaining of KMnO_(4),which changed the fluorescence intensity ratio of Si-FITC *** fluorescence intensity ratio correlated significantly with the N protein concentration ranging from 0.02 to 50.00 ng/mL,and the detection limit was 0.003 ng/mL,which was more sensitive than the commercial ELISA kit with a detection limit of 0.057 ng/*** N protein concentration can be accurately determined in human ***,the COVID-19 and non-COVID-19 patients were distinguishable by this ***,the ratiometric fluorescent immunoassay can be used for SARS-CoV-2 infection diagnosis with a high sensitivity and selectivity.

关键词： Si-FITC nanoparticles ratiometric fluorescent probe SARS-CoV-2 ELISA

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Interacting with α7 nAChR is a new mechanism for AChE to enhance the inflammatory response in macrophages

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Acta Pharmaceutica Sinica B 2020年第10期10卷 1926-1942,2020页

作者： Etta Y.L.Liu Yingjie Xia Xiangpeng Kong Maggie S.S.Guo Anna X.D.Yu Brody Z.Y.Zheng Shinghung Mak Miranda L.Xu Karl W.K.Tsim Key Laboratory of Food Quality and Safety of Guangdong Province College of Food ScienceSouth China Agricultural UniversityGuangzhou 510642China shenzhen Key Laboratory of Edible and Medicinal Bioresources the Hong Kong University of Science and TechnologyShenzhen 518057China Division of Life science Center for Chinese Medicinethe Hong Kong University of Science and TechnologyHong kongChina

Acetylcholine(ACh)regulates inflammation viaα7 nicotinic acetylcholine receptor(α7 nAChR).Acetylcholinesterase(AChE),an enzyme hydrolyzing ACh,is expressed in immune cells suggesting non-classical function in inflammatory ***,the expression of PRiMA-linked G4 AChE was identified on the surface of *** lipopolysaccharide-induced inflammatory processes,AChE was upregulated by the binding of NF-κB onto the ACHE ***,the overexpression of G4 AChE inhibited ACh-suppressed cytokine release and cell migration,which was in contrast to that of applied AChE ***,a DNA construct without enzymatic activity,was adopted to identify the protein role of AChE in immune *** of G4 AChEmt induced cell migration and inhibited ACh-suppressed cell *** co-localization ofα7 nAChR and AChE was found in macrophases,suggesting the potential interaction ofα7 nAChR and ***,immunoprecipitation showed a close association ofα7 nAChR and AChE protein in cell ***,the novel function of AChE in macrophage by interacting withα7 nAChR was *** with hydrolysis of ACh,AChE plays a direct role in the regulation of inflammatory *** such,AChE could serve as a novel target to treat age-related diseases by antiinflammatory responses.

关键词： Macrophage AChE Cholinergic anti-inflammatory pathway α7 nAChR

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GenOrigin: A comprehensive protein-coding gene origination database on the evolutionary timescale of life

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Journal of Genetics and Genomics 2021年第12期48卷 1122-1129页

作者： Yi-Bo Tong Meng-Wei Shi Sheng Hu Qian Yu-Jie Chen Zhi-Hui Luo Yi-Xuan Tu Yu-Li Xiong Ying-Jie Geng Chunyan Chen Zhen-Xia Chen Hubei Hongshan Laboratory College of Biomedicine and HealthHuazhong Agricultural UniversityWuhan 430070China Hubei Key Laboratory of agricultural Bioinformatics College of Life Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China center for Ecological and Environmental sciences Northwestern Polytechnical UniversityXi’an 710072China Interdisciplinary sciences Institute Huazhong Agricultural UniversityWuhan 430070China shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityShenzhen 518000China shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518000China

The origination of new genes contributes to the biological diversity of life. New genes may quickly build their network, exert important functions, and generate novel phenotypes. Dating gene age and inferring the origination mechanisms of new genes, like primate-specific genes, is the basis for the functional study of the genes. However, no comprehensive resource of gene age estimates across species is available. Here,we systematically date the age of 9,102,113 protein-coding genes from 565 species in the Ensembl and Ensembl Genomes databases, including 82 bacteria, 57 protists, 134 fungi, 58 plants, 56 metazoa, and 178 vertebrates, using a protein-family-based pipeline with Wagner parsimony algorithm. We also collect gene age estimate data from other studies and uniformly distribute the gene age estimates to time ranges in a million years for comparison across studies. All the data are cataloged into Gen Origin(http://***/), a user-friendly new database of gene age estimates, where users can browse gene age estimates by species, age, and gene ontology. In Gen Origin, the information such as gene age estimates,annotation, gene ontology, ortholog, and paralog, as well as detailed gene presence/absence views for gene age inference based on the species tree with evolutionary timescale, is provided to researchers for exploring gene functions.

关键词： Gene age Gene family Comparative analysis

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Restored intestinal integrity,nutrients transporters,energy metabolism,antioxidative capacity and decreased harmful microbiota were associated with IUGR piglet's catch-up growth before weanling

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Journal of Animal science and Biotechnology 2023年第1期14卷 390-408页

作者： Chang Cui Caichi Wu Jun Wang Ziwei Ma Xiaoyu Zheng Pengwei Zhu Nuan Wang Yuhua Zhu Wutai Guan Fang Chen Guangdong Provincial Key Laboratory of Animal Nutrition Control College of Animal ScienceSouth China Agricultural UniversityGuangzhou 510642China. shenzhen Kingsino technology CO. LTDShenzhen 518107China. shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityWuhan 430070China. agricultural Genomics Institute at shenzhen Chinese Academy of Agricultural SciencesShenzhen 518116China. College of Animal science and National Engineering Research center for Breeding Swine Industry South China Agricultural UniversityGuangzhou 510642China. Guangdong Laboratory for Lingnan Modern Agriculture South China Agricultural UniversityGuangzhou 510642China.

Background:Intrauterine growth restriction(IUGR)is a major inducer of higher morbidity and mortality in the pig industry and catch-up growth(CUG)before weanling could significantly restore this negative *** there was limited knowledge about the underlying mechanism of CUG ***:Eighty litters of newborn piglets were divided into normal birth weight(NBW)and IUGR groups according to birth *** 26 d,those piglets with IUGR but over average body weight of eighty litters of weaned piglets were considered as CUG,and the piglets with IUGR still below average body weight were considered as *** study was conducted to systemically compare the intestinal difference among NBW,CUG and NCUG weaned piglets considering the crucial role of the intestine for piglet ***:The results indicated that the m RNA expression of nutrients(amino acids,glucose,and fatty acids)transporters,and mitochondrial electron transport chain(ETC)I were upregulated in CUG piglets'gut with improved morphology compared with those NCUG,as well as the ratio of P-AMPK/AMPK protein expression which is the indicator of energy ***,CUG piglet's gut showed higher antioxidative capacity with increased SOD and GSHPx activity,decreased MDA levels,as well as higher m RNA expressions of Nrf2,Keap1,SOD,and ***,inflammatory parameters including TNF-α,IL-1β,IL-6,and IL-12 factors,and the activation of MAPK and NF-κB signaling pathways were significantly elevated in the NCUG intestine,while the protein expression of ZO-1,Occludin and Claudin-1 was *** alpha diversity of fecal microbiota was higher in CUG piglets in contrast with NCUG piglets,and the increased beneficial bacteria and decreased pathogenic bacteria was also observed in CUG ***:CUG piglet's intestine showed comprehensive restoration including higher nutrients transport,energy metabolism,antioxidant capacity,and intestinal physical barrier,while lower oxidative str

关键词： Antioxidative capacity Catch-up growth Gut Intrauterine growth retardation Piglets

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QTL underlying iron and zinc toxicity tolerances at seedling stage revealed by two sets of reciprocal introgression populations of rice(Oryza sativa L.)

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The Crop Journal 2016年第4期4卷 280-289页

作者： Huan Liu Aijaz Soomro Yajun Zhu Xianjin Qiu Kai Chen Tianqing Zheng Longwei Yang Danying Xing Jianlong Xu Hubei Collaborative Innovation center for Grain Industry Yangtze University Institute of Crop science/National Key Facility for Crop Gene Resources and Genetic Improvement Chinese Academy of Agricultural Sciences agricultural Genomics Institute at shenzhen Chinese Academy of Agricultural Sciences shenzhen Institute of Breeding for Innovation Chinese Academy of Agricultural Sciences

Iron and zinc are two trace elements that are essential for rice. But they are toxic at higher concentrations, leading to severe rice yield losses especially in acid soils and inland valleys. In this study, two reciprocal introgression line(IL) populations sharing the same parents were used with high-density SNP bin markers to identify QTL tolerant to iron and zinc toxicities. The results indicated that the japonica variety 02,428 had stronger tolerance to iron and zinc toxicities than the indica variety Minghui 63. Nine and ten QTL contributing to iron and zinc toxicity tolerances,respectively, were identified in the two IL populations. The favorable alleles of most QTL came from 02,428. Among them, q FRRDW2, q ZRRDW3, and q FRSDW11 appeared to be independent of genetic background. The region C11S49–C11S60 on chromosome 11 harbored QTL affecting multiple iron and zinc toxicity tolerance-related traits, indicating partial genetic overlap between the two toxicity tolerances. Our results provide essential information and materials for developing excellent rice cultivars with iron and/or zinc tolerance by marker-assisted selection(MAS).

关键词： Rice Reciprocal introgression lines Iron tolerance Zinc tolerance Quantitative trait locus/loci(QTL)

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