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Autophagy receptor ZmNBR1 promotes the autophagic degradation of ZmBRI1a and enhances drought tolerance in maize

Journal of Integrative Plant Biology 2024年第6期66卷 1068-1086页

作者： Yang Xiang Guangdong Li Qian Li Yingxue Niu Yitian Pan Yuan Cheng Xiangli Bian Chongyang Zhao Yuanhong Wang Aying Zhang College of Life sciences Nanjing Agricultural UniversityNanjing210095 China State Key Laboratory of Crop Genetics&Germplasm Enhancement and Utilization Nanjing Agricultural UniversityNanjing210095 China Sanya Institute of Nanjing agricultural university Nanjing Agricultural UniversitySanya572025 China

Drought stress is a crucial environmental factor that limits plant growth,development,and *** of misfolded proteins can help alleviate the damage caused in plants experiencing ***,the mechanism of autophagy-mediated drought tolerance in plants remains largely ***,we cloned the gene for a maize(Zea mays)selective autophagy receptor,NEXT TO BRCA1GENE 1(ZmNBR1),and identified its role in the response to drought *** observed that drought stress increased the accumulation of *** sequencing and reverse transcriptionquantitative polymerase chain reaction showed that ZmNBR1 is markedly induced by drought ***1 overexpression enhanced drought tolerance,while its knockdown reduced drought tolerance in *** results established that ZmNBR1 mediates the increase in autophagosomes and autophagic activity under drought ***1 also affects the expression of genes related to autophagy under drought ***,we determined that BRASSINOSTEROID INSENSITIVE1A(ZmBRI1a),a brassinosteroid receptor of the BRI1-like family,interacts with *** analysis showed that ZmBRI1a negatively regulates drought tolerance in maize,and genetic analysis indicated that ZmNBR1 acts upstream of ZmBRI1a in regulating drought ***,ZmNBR1facilitates the autophagic degradation of ZmBRI1a under drought *** together,our results reveal that ZmNBR1 regulates the expression of autophagy-related genes,thereby increasing autophagic activity and promoting the autophagic degradation of ZmBRI1a under drought stress,thus enhancing drought tolerance in *** findings provide new insights into the autophagy degradation of brassinosteroid signaling components by the autophagy receptor NBR1 under drought stress.

关键词： autophagy receptor drought tolerance Zea mays ZmBRI1a ZmNBR1

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Oligomerization of drug transporters:Forms,functions,and mechanisms

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Acta Pharmaceutica Sinica B 2024年第5期14卷 1924-1938页

作者： Chunxu Ni Mei Hong College of Life sciences South China Agricultural UniversityGuangzhou 510642China Guangdong Provincial Key Laboratory of Protein Function and Regulation in agricultural Organisms South China Agricultural UniversityGuangzhou 510642China

Drug transporters are essential players in the transmembrane transport of a wide variety of clinical *** broad substrate spectra and versatile distribution pattern of these membrane proteins infer their pharmacological and clinical *** our accumulating knowledge on the three-dimensional structure of drug transporters,their oligomerization status has become a topic of intense study due to the possible functional roles carried out by such kind of post-translational modification(PTM).In-depth studies of oligomeric complexes formed among drug transporters as well as their interactions with other regulatory proteins can help us better understand the regulatory mechanisms of these membrane proteins,provide clues for the development of novel drugs,and improve the therapeutic *** this review,we describe different oligomerization forms as well as their structural basis of major drug transporters in the ATP-binding cassette and solute carrier superfamilies,summarize our current knowledge on the influence of oligomerization for protein expression level and transport function of these membrane proteins,and discuss the regulatory mechanisms of ***,we highlight the challenges associated with the current oligomerization studies and propose some thoughts on the pharmaceutical application of this important drug transporter PTM.

关键词： Drug development Drug transporters Oligomerization Protein expression Protein–protein interaction Regulatory mechanism Structural basis Transport function

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Histological and single-nucleus transcriptome analyses reveal the specialized functions of ligular sclerenchyma cells and key regulators of leaf angle in maize

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Molecular Plant 2024年第6期17卷 920-934页

作者： Qibin Wang Qiuyue Guo Qingbiao Shi Hengjia Yang Meiling Liu Yani Niu Shuxuan Quan Di Xu Xiaofeng Chen Laiyi Li Wenchang Xu Fanying Kong Haisen Zhang Pinghua Li Bosheng Li Gang Li State Key Laboratory of Wheat Improvement College of Life SciencesShandong Agricultural UniversityTai’an 271018China Peking university Institute of Advanced agricultural sciences Shandong Laboratory of Advanced Agriculture Sciences in WeifangWeifangShandong 261325China State Key Laboratory of Wheat Improvement College of AgronomyShandong Agricultural UniversityTai’an 271018China

Leaf angle(LA)is a crucial factor that affects planting density and yield in ***,the regulatory mechanisms underlying LA formation remain largely *** this study,we performed a comparative histological analysis of the ligular region across various maize inbred lines and revealed that LA is significantly influenced by a two-step regulatory process involving initial cell elongation followed by subsequent lignification in the ligular adaxial sclerenchyma cells(SCs).Subsequently,we performed both bulk and single-nucleus RNA sequencing,generated a comprehensive transcriptomic atlas of the ligular region,and identified numerous genes enriched in the hypodermal cells that may influence their specialization into ***,we functionally characterized two genes encoding atypical basic-helix-loop-helix(bHLH)transcription factors,bHLH30 and its homolog bHLH155,which are highly expressed in the elongated adaxial *** analyses revealed that bHLH30 and bHLH155 positively regulate LA expansion,and molecular experiments demonstrated their ability to activate the transcription of genes involved in cell elongation and lignification of *** findings highlight the specialized functions of ligular adaxial SCs in LA regulation by restricting further extension of ligular cells and enhancing mechanical *** transcriptomic atlas of the ligular region at single-nucleus resolution not only deepens our understanding of LA regulation but also enables identification of numerous potential targets for optimizing plant architecture in modern maize breeding.

关键词： planting specialized angle

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The complete telomere-to-telomere genome assembly of lettuce

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Plant Communications 2024年第10期5卷 8-11页

作者： Ke Wang Jingyun Jin Jingxuan Wang Xinrui Wang Jie Sun Dian Meng Xiangfeng Wang Yong Wang Li Guo Peking university Institute of Advanced agricultural sciences Shandong Laboratory of Advanced Agricultural Sciences in WeifangShandong 261325China College of Life sciences Shandong Agricultural UniversityTai’anShandong 271018China

Dear Editor,Lettuce(Lactuca sativa L.)is an annual plant of the Asteraceae family,commonly used as a fresh-cut vegetable and a primary ingredient in *** is rich in vitamins,minerals,polyphenols,and carotenoids,providing numerous health *** 2021,lettuce achieved a gross production value of$16.6 billion worldwide,with China,the United States,and Western Europe as leading lettuce producers(Food and Agriculture Organization of the United Nations,2023).

关键词： let vitamin benefits

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Annual growth of Fagus orientalis is limited by spring drought conditions in Iran’s Golestan Province

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Journal of Forestry Research 2024年第1期35卷 128-142页

作者： Khalil Ghorbani Jahangir Mohammadi Laleh Rezaei Ghaleh Department of Water Engineering Faculty of Water and Soil EngineeringGorgan University of Agricultural Sciences and Natural ResourcesGorganIran Department of Forestry Gorgan University of Agricultural Sciences and Natural ResourcesGorganIran Department of Water Engineering Faculty of AgricultureUrmia UniversityUrmiaIran

Due to the lack of a uniform and accurate defi-nition of‘drought’,several indicators have been introduced based on different variables and methods,and the efficiency of each of these is determined according to their relationship with *** relationship between two drought indices,SPI(standardized precipitation index)and SPEI(standard-ized precipitation-evapotranspiration index)in different sea-sons was investigated using annual rings of 15 tree samples to determine the effect of drought on the growth of oriental beech(Fagus orientalis Lipsky)in the Hyrcanian forests of northern *** different evapotranspiration calcula-tion methods were evaluated on SPEI efficiency based on Hargreaves-Samani,Thornthwaite,and Penman-Monteith methods using the step-by-step M5 decision tree regression *** results show that SPEI based on the Penman-Monteith in a three-month time scale(spring)had similar temporal changes and a better relationship with annual tree rings(R^(2)=0.81)at a 0.05 significant *** change and a decreasing trend in the time series of annual tree rings are similar to the variation in the SPEI based on the Penman-Monteith *** affecting evapotranspiration,temperature,wind speed,and sunshine hours(used in the Penman-Monteith method),increased but precipitation *** non-linear modeling methods,SPEI based on Penman-Monteith best illustrated climate changes affecting tree growth.

关键词： Climate change Drought index Hyrcanian forests SPEI'Annual growth rings Fagus orientalis

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Whole-genome resequencing identifies candidate genes and allelic variation in the MdNADP-ME promoter that regulate fruit malate and fructose contents in apple

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Plant Communications 2024年第9期5卷 168-183页

作者： Weihong Fu Lin Zhao Wanjun Qiu Xu Xu Meng Ding Liming Lan Shenchun Qu Sanhong Wang College of Horticulture Nanjing Agricultural UniversityNanjing 210095China Xuzhou Institute of agricultural sciences in Xuhuai Region of Jiangsu Xuzhou 221131China

Soluble sugar and organic acids are key determinants of fruit organoleptic quality and directly affect the commodity value and economic returns of fruit *** performed whole-genome sequencing of the apple varieties Gala and Xiahongrou,along with their F1 hybrids,to construct a high-density bin *** quantitative genetic analysis pinpointed 53 quantitative trait loci(QTLs)related to 11 sugar and acid *** identified a candidate gene,MdNADP-ME,responsible for malate degradation,in a stable QTL on linkage group *** analysis revealed an A/C SNP in the promoter region(MEp-799)that influences binding of the MdMYB2 transcription factor,thereby affecting MdNADP-ME *** our study of various apple genotypes,this SNP has been demonstrated to be linked to malate and fructose *** also developed a dCAPS marker associated with fruit fructose *** results substantiate the role of MdNADP-ME in maintaining the equilibrium between sugar and acid contents in apple fruits.

关键词： apple quantitative trait locus malate degradation sugar content promoter

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Green LED irradiation promotes the quality of cabbage through delaying senescence and regulating glucosinolate metabolism

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Food Quality and Safety 2024年第1期8卷 190-200页

作者：郭峰周宏胜胡花丽张映曈凌军刘雪松罗淑芬李鹏霞 Institute of agricultural Facilities and Equipment Jiangsu Academy of Agricultural SciencesNanjingChina The College of Food Science Shenyang Agricultural UniversityShenyangChina Jiangsu Academy of agricultural sciences Key Laboratory of Cold Chain Logistics Technology for Agro-ProductsMinistry of Agriculture and Rural AffairsNanjingChina

Light-emitting diode(LED)irradiation can affect postharvest vegetable and fruit shelf life and nutritional *** this study,11 kinds of glucosinolates(GLS)and 6 types of GLS breakdown products were identified in cabbage *** investigate the effects of LED irradiation on quality and GLS metabolism,postharvest cabbage was irradiated with 25μmol/(m2·s)green LED(GL)light at room temperature for 12 *** dark condition and natural light were used as *** irradiation inhibited the respiration rate and the accumulation of malondialdehyde,and maintained higher cabbage sensory score,chlorophyll content,and antioxidant enzyme activities,thus extending its postharvest shelf ***,GL irradiation promoted GLS profile accumulation,including glucoraphanin,glucoiberin,gluconapin,gluconasturtiin,glucobrassicin,and sinigrin,which could have resulted from upregulated expression of the transcription factors MYB28 and MYB51,and the key genes involved in GLS biosynthesis(CYP83A1,CYP83B1,ST5b,and UGT74B1).Furthermore,GLS degradation was promoted by this treatment during the late stage of shelf life,as higher myrosinase activity and relative MYR and ESM expression levels were found in treated cabbage leaves,resulting in higher isothiocyanate(ITC)and indole-3-carbinol contents after day ***,GL irradiation was beneficial for cabbage preservation.

关键词： Cabbage light senescence glucosinolate metabolism.

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Liquid–liquid phase separation in plants:Advances and perspectives from model species to crops

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Plant Communications 2024年第1期5卷 24-40页

作者： Qianwen Liu Wenxuan Liu Yiding Niu Tao Wang Jiangli Dong College of Biological sciences China Agricultural UniversityBeijing 100193China College of Life sciences Henan Agricultural UniversityZhengzhou 450002China Key Laboratory of Forage and Endemic Crop Biology Ministry of EducationSchool of Life SciencesInner Mongolia UniversityHohhot 010021China

Membraneless biomolecular condensates play important roles in both normal biological activities and re-sponses to environmental stimuli in living ***‒liquid phase separation(LLPS)is an organi-zational mechanism that has emerged in recent years to explain the formation of biomolecular *** the past decade,advances in LLPS research have contributed to breakthroughs in *** contrast,although LLPS research in plants has progressed over the past 5 years,it has been concentrated on the model plant Arabidopsis,which has limited relevance to agricultural *** this review,we provide an overview of recently reported advances in LLPS in plants,with a particular focus on photomorphogenesis,flowering,and abiotic and biotic stress *** propose that many potential LLPS proteins also exist in crops and may affect crop growth,development,and stress *** possibility presents a great challenge as well as an opportunity for rigorous scientific research on the biological functions and applications of LLPS in crops.

关键词： biomolecular condensates crops intrinsic disordered proteins LLPS potential prediction

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Host-induced silencing of MpPar6 confers Myzus persicae resistance in transgenic rape plants

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Journal of Integrative Agriculture 2024年第1期23卷 187-194页

作者： Qi Zhang Wenqin Zhan Chao Li Ling Chang Yi Dong Jiang Zhang State Key Laboratory of Biocatalysis and Enzyme Engineering School of Life SciencesHubei UniversityWuhan 430062China Oil Crops Research Institute Chinese Academy of Agricultural SciencesWuhan 430062China agricultural Genomics Institute at Shenzhen Chinese Academy of Agricultural SciencesShenzhen 518000China

Plant-mediated RNA interference(RNAi)has emerged as a promising technology for insect *** green peach aphid,Myzus persicae,feeds on over 400 species of host *** napus(rape)is the second most important oilseed crop *** persicae is highly reproductive and causes severe damage to the rape plants due to its quite flexible life *** this study,we tested the RNAi effects of transgenic rape plants on *** in vitro feeding *** with artificial diets containing double-stranded RNAs(dsRNAs)targeting seven aphid genes,we identified a new gene encoding the partitioning-defective protein 6(Par6)as the most potent RNAi ***-and stage-expression analysis of Par6 suggested this gene is highly expressed in the embryo and adult stage of *** next generated transgenic rape plants expressing ds Par6 by Agrobacteriummediated transformation and obtained nine independent transgenic *** to wild-type control plants,transgenic rape lines expressing ds Par6 showed strong resistance to *** assays revealed that feeding transgenic rape plants to *** significantly decreased MpPar6 expression and survival rate and impaired ***,we showed that the resistance levels to *** are positively correlated with ds Par6 expression levels in transgenic rape *** study demonstrates that transgenic rape plants expressing ds Par6 are efficiently protected from *** with the genes involved in embryo development could be the effective RNAi targets for controlling aphids and potentially other insect pests.

关键词： oilseed rape pest control aphid double-stranded RNA RNA interference

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Mutations of voltage-gated sodium channel contribute to pyrethroid resistance in Panonychus citri

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Insect Science 2024年第3期31卷 803-816页

作者： Deng Pan Qiu-Juan Luo Andrias O.O'Reilly Guo-Rui Yuan Jin-Jun Wang Wei Dou Key Laboratory of Entomology and Pest Control Engineering College of Plant ProtectionAcademy of Agricultural SciencesSouthwest UniversityChongqingChina Key Laboratory of agricultural Biosafety and Green Production of Upper Yangtze River(Ministry of Education) Academy of Agricultural SciencesSouthwest UniversityChongqingChina School of Biological and Environmental sciences Liverpool John Moores UniversityLiverpoolUK

Insecticide resistance in Panonychus citri is a major obstacle to mite control in citrus *** insecticides are continually used to control mites in China,although resistance to pyrethroids has evolved in some ***,the resistance to the pyrethroid fenpropathrin was investigated and 7 out of 8 field-collected populations of P citri exhibited a high level of resistance,ranging from 171-fold to 15391-fold higher than the susceptible(SS)comparison *** voltage-gated sodium channel(VGSC)mutations were identified in the tested populations:L1031V,F1747L,and *** sequencing was used to evaluate the frequency of these mutations in the 19 field populations.L1031V and F1751I were present in all populations at frequencies of 11.6%-82.1%and 0.5%-31.8%,respectively,whereas the F1747L mutation was only present in 12 populations from Chongqing,Sichuan,Guangxi,and Yunnan *** of these mutations singly or in combination into transgenic flies significantly increased their resistance to fenpropathrin and these flies also exhibited reduced mortality after exposure to the pyrethroids permethrin andβ-*** citri VGSC homology modeling and ligand docking indicate that F1747 and F1751 form direct binding contacts with pyrethroids,which are lost with mutation,whereas L1031 mutation may diminish pyrethroid effects through an allosteric ***,the results provide molecular markers for monitoring pest resistance to pyrethroids and offer new insights into the basis of pyrethroid actions on sodium channels.

关键词： amplicon sequencing kdr mutation molecular docking Panonychus citri pyrethroid resistance transgenic flies

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