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Liquid metal-based plant electronic tattoos for in-situ monitoring of plant physiology

Science china(Technological Sciences) 2023年第6期66卷 1617-1628页

作者： QU ChunChun CAO LingXiao LI MaoLin WANG XiQing HE ZhiZhu College of Engineering China Agricultural UniversityBeijing 100083China Center for Crop Functional Genomics and Molecular Breeding China Agricultural UniversityBeijing 100083China Sanya Institute of China Agricultural University China Agricultural UniversitySanya 572000China

Flexible plant sensors,as a noninvasive and real-time monitoring method for plant physiology,are becoming crucial for precision agriculture.However,integrating flexible devices with plants are challenging due to their fragility and complex surfaces.In this study,we introduce a liquid metal-based plant electronic tattoo(LM-PET)that can harmlessly and continuously monitor the loss of water content and plant electrical signals,which are critical parameters for analyzing plant physiological status.The LM-PET achieves double-sided conductivity through soluble electrostatic spinning films and transferring technology,effectively addressing the issue of mismatch between the rigid interface of electronic devices and the surface of delicate plants.The fabricated tattoo electrode can adhere tightly to the leaf surface for a long time and can significantly broaden the scope of moisture monitoring,even in cases of severe wrinkling caused by water loss.At the optimum operating frequency of 100 kHz,the sensitivity of LM-PET can reach 25.4 kΩ%^(-1).Thus,LM-PETs can record the electrical signals generated when abiotic stresses threaten plants.They are also significant in providing a deeper understanding of the drought adaptation mechanisms of plants and developing drought-resistant varieties.They offer data-driven crop management and decision-making guidance,which is imperative for advancing precision agriculture.Overall,our findings provide valuable insights into the performance of agricultural inputs and facilitate real-time monitoring of plant growth and development.

关键词： plant flexible electrodes liquid metal impedance plant electrical signal plant phenotype

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Cross-resistance and genetics of field-evolved resistance to chlorfenapyr in Plutella xylostella

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Insect Science 2024年第2期31卷 533-541页

作者： Cheng Qian Jialin Li Shuwen Wu Yihua Yang Yidong Wu Xingliang Wang sanya institute of Nanjing agricultural Universty SanyaHainanChinaand College of Plant Protection Nanjing Agricultural UniversNanjingChina

Chlorfenapyr is a broad-spectrum halogenated pyrrole insecticide with a unique mode of action.Due to the misuse and overuse of this chemical,resistance has been reported in several arthropods,including Plutella xylostella,which is one of the most destructive insect pests afflicting crucifers worldwide.A better understanding of the cross-resistance and genetics of field-evolved chlorfenapyr resistance could effectively guide resistance management practices.Here,the chlorfenapyr resistance of a fieldderived population of P xylostella was introgressed into the susceptible IPP-S strain using a selection-assisted multigenerational backcrossing approach.The constructed nearisogenic strain,TH-BCsF2,shared 98.4%genetic background with the recurrent parent IPP-S strain.The TH-BCsF2 strain showed 275-fold resistance to chlorfenapyr,but no significant cross-resistance to spinosad,abamectin,chlorpyrifos,β-cypermethrin,indoxacarb,chlorantraniliprole,or broflanilide(no more than 4.2-fold).Genetic analysis revealed that resistance was autosomal,incompletely dominant,and conferred by 1 major gene or a few tightly linked loci.The synergism of metabolic inhibitors(PBO,DEM,and DEF)to chlorfenapyr was very weak(<1.7-fold),and the metabolic enzyme activities in the TH-BCsF2 strain were not significantly elevated compared with the IPP-S strain.The results enhances our understanding of the genetic traits of chlorfenapyr resistance,and provides essential information for improving resistance management strategies.

关键词： chlorfenapyr cross-resistance mode of inheritance near-isogenic line Plutellaxylostella

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Advances in pig models of human diseases

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Animal Models and Experimental Medicine 2022年第2期5卷 141-152页

作者： Naipeng Hou Xuguang Du Sen Wu College of Animal Science and Technology China Agricultural UniversityBeijingChina Sanya Institute of China Agricultural University SanyaChina State Key Laboratory of Agrobiotechnology College of Biological SciencesChina Agricultural UniversityBeijingChina

Animal models of human diseases play a critical role in medical research.Pigs are anatomically and physiologically more like humans than are small rodents such as mice,making pigs an attractive option for modeling human diseases.Advances in recent years in genetic engineering have facilitated the rapid rise of pig models for use in studies of human disease.In the present review,we summarize the current status of pig models for human cardiovascular,metabolic,neurodegenerative,and various genetic diseases.We also discuss areas that need to be improved.Animal models of human diseases play a critical role in medical research.Advances in recent years in genetic engineering have facilitated the rapid rise of pig models for use in studies of human disease.In the present review,we summarize the current status of pig models for human cardiovascular,metabolic,neurodegenerative,various genetic diseases and xenotransplantation.

关键词： animal model gene-editing human disease pig

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Recent progression and future perspectives in cotton genomic breeding

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Journal of Integrative Plant Biology 2023年第2期65卷 548-569页

作者： Zhaoen Yang Chenxu Gao Yihao Zhang Qingdi Yan Wei Hu Lan Yang Zhi Wang Fuguang Li Zhengzhou Research Base State Key Laboratory of Cotton BiologySchool of Agricultural SciencesZhengzhou UniversityZhengzhou 450000China State Key Laboratory of Cotton Biology Institute of Cotton Research of the Chinese Academy of Agricultural SciencesAnyang 455000China National Nanfan Research institute(sanya) Chinese Academy of Agricultural SciencesSanya 572000China sanya institute Zhengzhou UniversitySanya 572000China

Upland cotton is an important global cash crop for its long seed fibers and high edible oil and protein content.Progress in cotton genomics promotes the advancement of cotton genetics,evolutionary studies,functional genetics,and breeding,and has ushered cotton research and breeding into a new era.Here,we summarize high-impact genomics studies for cotton from the last 10 years.The diploid Gossypium arboreum and allotetraploid Gossypium hirsutum are the main focus of most genetic and genomic studies.We next review recent progress in cotton molecular biology and genetics,which builds on cotton genome sequencing efforts,population studies,and functional genomics,to provide insights into the mechanisms shaping abiotic and biotic stress tolerance,plant architecture,seed oil content,and fiber development.We also suggest the application of novel technologies and strategies to facilitate genome-based crop breeding.Explosive growth in the amount of novel genomic data,identified genes,gene modules,and pathways is now enabling researchers to utilize multidisciplinary genomics-enabled breeding strategies to cultivate"super cotton",synergistically improving multiple traits.These strategies must rise to meet urgent demands for a sustainable cotton industry.

关键词： functional genomics genomic breeding germplasm resource Gossypium integrated breeding strategy major locus multi-omics

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Integration of high-throughput phenotyping,GWAS,and predictive models reveals the genetic architecture of plant height in maize

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Molecular Plant 2023年第2期16卷 354-373页

作者： Weixuan Wang Weijun Guo Liang Le Jia Yu Yue Wu Dongwei Li Yifan Wang Huan Wang Xiaoduo Lu Hong Qiao Xiaofeng Gu Jian Tian Chunyi Zhang Li Pu Biotechnology Research institute Chinese Academy of Agricultural SciencesBeijing 100081China National Nanfan Research institute(sanya) Chinese Academy of Agricultural SciencesSanya 572024China institute of Molecular Breeding for Maize Qilu Normal UniversityJinan 250200China institute for Cellular and Molecular Biology The University of Texas at AustinAustinTX 78712USA Department of Molecular Biosciences The University of Texas at AustinAustinTX 78712USA sanya institute Hainan Academy of Agricultural SciencesSanya 572000China

Plant height(PH)is an essential trait in maize(Zea mays)that is tightly associated with planting density,biomass,lodging resistance,and grain yield in the field.Dissecting the dynamics of maize plant architecture will be beneficial for ideotype-based maize breeding and prediction,as the genetic basis controlling PH in maize remains largely unknown.In this study,we developed an automated high-throughput phenotyping platform(HTP)to systematically and noninvasively quantify 77 image-based traits(i-traits)and 20 field traits(f-traits)for 228 maize inbred lines across all developmental stages.Time-resolved i-traits with novel digital phenotypes and complex correlations with agronomic traits were characterized to reveal the dynamics of maize growth.An i-trait-based genome-wide association study identified 4945 traitassociated SNPs,2603 genetic loci,and 1974 corresponding candidate genes.We found that rapid growth of maize plants occurs mainly at two developmental stages,stage 2(S2)to S3 and S5 to S6,accounting for the final PH indicators.By integrating the PH-association network with the transcriptome profiles of specific internodes,we revealed 13 hub genes that may play vital roles during rapid growth.The candidate genes and novel i-traits identified at multiple growth stages may be used as potential indicators for final PH in maize.One candidate gene,ZmVATE,was functionally validated and shown to regulate PH-related traits in maize using genetic mutation.Furthermore,machine learning was used to build predictive models for final PH based on i-traits,and their performancewas assessed across developmental stages.Moderate,strong,and very strong correlations between predictions and experimental datasets were achieved from the early S4(tenth-leaf)stage.Colletively,our study provides a valuable tool for dissecting the spatiotemporal formation of specific internodes and the genetic architecture of PH,as well as resources and predictive models that are useful for molecular design breeding and predicting maize varieties with i

关键词： phenomics GWAS plant height machine learning prediction maize

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Advances in understanding epigenetic regulation of plant trichome development: a comprehensive review

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Horticulture Research 2023年第9期10卷 293-305页

作者： Yuming Dong Sen Li Haoying Wu Yiming Gao Zhongxuan Feng Xi Zhao Li Shan Zhongren Zhang Huazhong Ren Xingwang Liu College of Horticulture China Agricultural UniversityBeijing 100193China Sanya Institute of China Agricultural University Sanya Hainan 572000China

Plant growth and development are controlled by a complex gene regulatory network,which is currently a focal point of research.It has been established that epigenetic factors play a crucial role in plant growth.Trichomes,specialized appendages that arise from epidermal cells,are of great significance in plant growth and development.As a model system for studying plant development,trichomes possess both commercial and research value.Epigenetic regulation has only recently been implicated in the development of trichomes in a limited number of studies,and microRNA-mediated post-transcriptional regulation appears to dominate in this context.In light of this,we have conducted a review that explores the interplay between epigenetic regulations and the formation of plant trichomes,building upon existing knowledge of hormones and transcription factors in trichome development.Through this review,we aim to deepen our understanding of the regulatory mechanisms underlying trichome formation and shed light on future avenues of research in the field of epigenetics as it pertains to epidermal hair growth.

关键词： development. comprehensive specialized

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Integrative analysis of miRNA and mRNA profiles reveals that gga-miR-106-5p inhibits adipogenesis by targeting the KLF15 gene in chickens

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Journal of Animal Science and Biotechnology 2022年第6期13卷 1671-1689页

作者： Weihua Tian Xin Hao Ruixue Nie Yao Ling Bo Zhang Hao Zhang Changxin Wu National Engineering Laboratory for Animal Breeding Beijing Key Laboratory for Animal Genetic ImprovementCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China Sanya Institute of China Agricultural University Hainan 572025 SanyaChina.

Background:Excessive abdominal fat deposition in commercial broilers presents an obstacle to profitable meat quality,feed utilization,and reproduction.Abdominal fat deposition depends on the proliferation of preadipocytes and their maturation into adipocytes,which involves a cascade of regulatory molecules.Accumulating evidence has shown that microRNAs(miRNAs)serve as post-transcriptional regulators of adipogenic differentiation in mammals.However,the miRNA-mediated molecular mechanisms underlying abdominal fat deposition in chickens are still poorly understood.This study aimed to investigate the biological functions and regulatory mechanism of miRNAs in chicken abdominal adipogenesis.Results:We established a chicken model of abdominal adipocyte differentiation and analyzed miRNA and mRNA expression in abdominal adipocytes at different stages of differentiation(0,12,48,72,and 120 h).A total of 217 differentially expressed miRNAs(DE-miRNAs)and 3520 differentially expressed genes were identified.Target prediction of DE-miRNAs and functional enrichment analysis revealed that the differentially expressed targets were significantly enriched in lipid metabolism-related signaling pathways,including the PPAR signaling and MAPK signaling pathways.A candidate miRNA,gga-miR-106-5p,exhibited decreased expression during the proliferation and differentiation of abdominal preadipocytes and was downregulated in the abdominal adipose tissues of fat chickens compared to that of lean chickens.gga-miR-106-5p was found to inhibit the proliferation and adipogenic differentiation of chicken abdominal preadipocytes.A dual-luciferase reporter assay suggested that the KLF15 gene,which encodes a transcriptional factor,is a direct target of gga-miR-106-5p.gga-miR-106-5p suppressed the posttranscriptional activity of KLF15,which is an activator of abdominal preadipocyte proliferation and differentiation,as determined with gain-and loss-of-function experiments.Conclusions:gga-miR-106-5p functions as an inhibitor of abdominal adipogenesis by t

关键词： Abdominal fat Adipogenesis Chickens gga-miR-106-5p KLF15 MiRNA

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The impact of high hydrostatic pressure treatment time on the structure,gelatinization and thermal properties and in vitro digestibility of oat starch

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Grain & Oil Science and Technology 2022年第1期5卷 1-12页

作者： Jing Zhang Meili Zhang Xue Bai Yakun Zhang Chen Wang College of Food Science and Engineering Inner Mongolia Agricultural UniversityHuhhot 010018China sanya Research institute Hainan Academy of Agricultural SciencesSanya 572024China

As a non-thermal processing technology,high hydrostatic pressure(HHP)can be used for starch modification without affecting the quality and flavour constituents.The effect of HHP on starch is closely related to the treatment time of HHP.In this paper,we investigated the impacts of HHP treatment time(0,5,10,15,20,25,30 min)on the microstructure,gelatinization and thermal properties as well as in vitro digestibility of oat starch by scanning electron microscopy,X-ray diffraction,Fourier transform infrared spectroscopy,13C NMR and differential scanning calorimeter.Results showed that 5-min HHP treatment led to deformation and decreases in short-range ordered and doublehelix structures of oat starch granules,and further extending the treatment time to 15 min or above caused the formation of a gelatinous connection zone,increase of particle size,disintegration of short-range ordered and double-helix structures,and crystal structure change from A type to V type,indicating gelatinization occurred.Longer treatment time also resulted in the reduction in both the viscosity and the stability of oat starch.These indicated that HHP treatment time greatly influenced the microstructure of oat starch,and the oat starch experienced crystalline destruction(5 min),crystalline disintegration(15 min)and gelatinization(>15 min)during HHP treatment.Results of in vitro digestibility showed that the rapidly digestible starch(RDS)content declined first after treatment for 5 to 10 min then rose with the time extending from 15 to 30 min,indicating that longer pressure treatment time was unfavourable to the health benefits of oat starch for humans with diabetes and cardiovascular disease.Therefore,the 500-MPa treatment time for oat starch is recommended not more than 15 min.This study provides theoretical guidance for the application of HHP technology in starch modification and development of health foods.

关键词： High hydrostatic pressure Oat starch Structure Gelatinization property Thermal property In vitro digestibility

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G2-LIKE CAROTENOID REGULATOR(SlGCR)is a positive regulator of lutein biosynthesis in tomato

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aBIOTECH 2022年第4期3卷 267-280页

作者： Siyan Ren Yong Yuan Hsihua Wang Yang Zhang Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education College of Life SciencesSichuan UniversityChengdu610064China Sanya Institute of China Agricultural University Sanya572025China Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops College of HorticultureChina Agricultural UniversityBeijing100193China

Lutein is an oxygen-containing carotenoid synthesized in plant chloroplasts and chromoplasts.It plays an indispensable role in promoting plant growth and maintaining eye health in humans.The rate-limiting step of lutein biosynthesis is catalyzed by the lycopeneε-cyclase enzyme(LCYE).Although great progress has been made in the identification of transcription factors involved in the lutein biosynthetic pathway,many systematic molecular mechanisms remain to be elucidated.Here,using co-expression analysis,we identified a gene,G2-LIKE CAROTENOID REGULATOR(SlGCR),encoding a GARP G2-like transcription factor,as the potential regulator of SlLCYE in tomato.Silencing of SlGCR reduced the expression of carotenoid biosynthetic genes and the accumulation of carotenoids in tomato leaves.By contrast,overexpression of SlGCR in tomato fruit significantly increased the expression of relevant genes and enhanced the accumulation of carotenoids.SlGCR can directly bind to the SlLCYE promoter and activate its expression.In addition,we also discovered that expression of SlGCR was negatively regulated by the master regulator SlRIN,thereby inhibiting lutein synthesis during tomato fruit ripening.Taken together,we identified SlGCR as a novel regulator involved in tomato lutein biosynthesis,elucidated the regulatory mechanism,and provided a potential tool for tomato lutein metabolic engineering.

关键词： Solanum lycopersicum GARP G2-like transcription factor Lutein biosynthesis

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Strategies and prospects for melatonin to alleviate abiotic stress in horticultural plants

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Horticultural Plant Journal 2024年第3期10卷 601-614页

作者： Xiaoyun Wang Meng Cao Hongxin Li Ying Liu Shuangxi Fan Na Zhang Yangdong Guo College of Horticulture China Agricultural UniversityBeijing100193China College of Plant Science and Technology Beijing University of AgricultureBeijing102206China Beijing Bei Nong Enterprise Management Co. Ltd.Beijing102206China Sanya Institute of China Agricultural University SanyaHainan572000China

Melatonin is a conserved pleiotropic molecule in animals and plants.Melatonin is involved in many development processes and stress responses;thus,exploring its function in plants,particularly in horticultural plants,has become a rapidly developing field.Many studies have revealed that phytomelatonin acts as a plant biostimulant and increase its tolerance to various abiotic stressors,including extreme temperature,drought,osmotic disturbance,heavy metals,and ultraviolet(UV).Melatonin appears to have roles in the scavenging of reactive oxygen species(ROS)and other free radicals,affecting the primary and secondary metabolism of plants,regulating the transcripts of stress-related enzymes and transcription factors,and crosstalk with other hormones under different environmental conditions.This pleiotropy makes phytomelatonin an attractive regulator to improve resistance to abiotic stress in plants.The recent discovery of the potential phytomelatonin receptor CAND2/PMTR1 and the proposition of putative models related to the phytomelatonin signaling pathways makes phytomelatonin a new plant hormone.Based on relevant studies from our laboratory,this review summarizes the phytomelatonin biosynthetic and metabolic pathways in plants and the latest research progress on phytomelatonin in abiotic stress of horticultural plants.This study will provide a reference for elucidating the regulatory mechanism of phytomelatonin affecting the resistance to abiotic stress in plants.

关键词： Abiotic stress Biostimulant Horticultural plants Phytomelatonin

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