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Sporophytic control of tapetal development and pollen fertility by a mitogen-activated protein kinase cascade in rice

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Journal of Integrative plant Biology 2024年第7期66卷 1500-1516页

作者： Jianguo Zeng Manman Duan Yiqing Wang Guangtao Li Yujing You Jie Shi Changhao Liu Jinyang Zhang Juan Xu Shuqun Zhang Jing Zhao Department of plant pathology Nanjing Agricultural UniversityNanjing 210095China State Key Laboratory of plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China division of Biochemistry University of MissouriColumbia65211MOUSA

Tapetum,the innermost layer of the anther wall,provides essential nutrients and materials for pollen *** degradation of anther tapetal cells is a prerequisite for normal pollen development in flowering *** cells facilitate male gametogenesis by providing cellular contents after highly coordinated programmed cell death(PCD).Tapetal development is regulated by a transcriptional ***,the signaling pathway(s)involved in this process are poorly *** this study,we report that a mitogen-activated protein kinase(MAPK)cascade composed of OsYDA1/OsYDA2-OsMKK4-OsMPK6 plays an important role in tapetal development and male gametophyte *** of function of this MAPK cascade leads to anther indehiscence,enlarged tapetum,and aborted pollen *** cells in osmkk4 and osmpk6 mutants exhibit an increased presence of lipid body-like structures within the cytoplasm,which is accompanied by a delayed occurrence of *** of a constitutively active version of OsMPK6(CA-OsMPK6)can rescue the pollen defects in osmkk4 mutants,confirming that OsMPK6 functions downstream of OsMKK4 in this *** crosses also demonstrated that the MAPK cascade sporophyticly regulates pollen *** study reveals a novel function of rice MAPK cascade in plant male reproductive biology.

关键词： degradation MAPK cascade pollen fertility rice tapetum

Identification and virulence test of a new pathogen that causes verticillium striping on rapeseed in northwestern China

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Oil Crop Science 2024年第1期9卷 8-19页

作者： We Si Ruisheng Wang Mingde Wu Long Yang Guoqing Li Jing Zhang State Key Laboratory of Agricultural microbiology and Key Laboratory of plant pathology of Hubei Province Huazhong Agricultural UniversityWuhan 430070China Qinghai Academy of Agriculture and Forestry Sciences Qinghai UniversityXiningQinghai Province810016China

Five stems of rapeseed with abundant black microsclerotia were collected from Huangyuan County of Qinghai Province,China,and fungal isolates were obtained from the *** were identified based on morphology,molecular features and specific PCR *** results showed that the 10 fungal isolates belonged to Verticillium longisporum lineage A1/*** of the 10 isolates(HW7-1)was tested for virulence on three species of rapeseed,including *** Zhongshuang 9,*** Qingyou 9 and *** Tayou 2 by conidia inoculation of HW7-1 on roots of young *** seedlings were inoculated with *** conidia or water *** seedlings of these treatments were transplanted in culture mix and incubated in a growth chamber(20℃).Results suggested that the control seedlings of three cultivars appeared quite healthy,while the seedlings inoculated with HW7-1 turned yellowing leaves,seedling stunting or even death after 22 days *** was re-isolated from he yellow leaves,thus fulfilling Koch's ***,compared to the control treatments,inoculation with HW7-1 caused flowering delay and seed yield reduction on Tayou 2 with production of microsclerotia on the *** our knowledge,this is the first report of *** lineage A1/D3 on rapeseed in northwestern China.

关键词： Verticillium longisporum lineage A1/D3 Virulence Rapeseed China

plant virology in the 21st century in China:Recent advances and future directions

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Journal of Integrative plant Biology 2024年第3期66卷 579-622页

作者： Jianguo Wu Yongliang Zhang Fangfang Li Xiaoming Zhang Jian Ye Taiyun Wei Zhenghe Li Xiaorong Tao Feng Cui Xianbing Wang Lili Zhang Fei Yan Shifang Li Yule Liu Dawei Li Xueping Zhou Yi Li State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Vector-borne Virus Research CenterCollege of Plant ProtectionFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of plant Environmental Resilience and Ministry of Agriculture Key Laboratory of Soil microbiology College of Biological SciencesChina Agricultural UniversityBeijing 100193China State Key Laboratory for Biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of plant Genomics Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China State Key Laboratory of Rice Biology Institute of BiotechnologyZhejiang UniversityHangzhou 310058China Department of plant pathology The Key Laboratory of Plant ImmunityNanjing Agricultural UniversityNanjing 210095China State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Institute of Plant VirologyNingbo UniversityNingbo 315211China MOE Key Laboratory of Bioinformatics Center for Plant BiologySchool of Life SciencesTsinghua UniversityBeijing 100084China State Key Laboratory of Protein and plant Gene Research School of Life SciencesPeking UniversityBeijing 100871China

plant viruses are a group of intracellular pathogens that persistently threaten global food *** advances in plant virology have been achieved by Chinese scientists over the last 20 years,including basic research and technologies for preventing and controlling plant viral ***,we review these milestones and advances,including the identification of new crop-infecting viruses,dissection of pathogenic mechanisms of multiple viruses,examination of multilayered interactions among viruses,their host plants,and virus-transmitting arthropod vectors,and in-depth interrogation of plantencoded resistance and susceptibility ***,various plant virus-based vectors have also been successfully developed for gene function studies and target gene expression in *** also recommend future plant virology studies in China.

关键词： China emerging plant viruses plant virology plant resistance/susceptibility to viral infection plant-virus transmission vector interactions plant virus-based vectors viral pathogenesis

Hepatocellular carcinoma presenting as an extrahepatic mass:A case report and review of literature

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World Journal of Gastrointestinal Oncology 2024年第5期16卷 2241-2252页

作者： Wei Kelly Wu Krutika Patel Chandrasekhar Padmanabhan Kamran Idrees Department of Surgery Vanderbilt University Medical CenterNashvilleTN 37232United States Department of pathology Microbiology and ImmunologyVanderbilt University Medical CenterNashvilleTN 37232United States division of Surgical Oncology and Endocrine Surgery Department of SurgeryVanderbilt University Medical CenterNashvilleTN 37232United States

BACKGROUND Hepatocellular carcinoma(HCC)is a primary liver tumor generally diagnosed based on radiographic *** disease is typically associated with increased tumor diameter,multifocality,and vascular *** report a case of a patient who presented with extrahepatic HCC metastasis to a portocaval lymph node with occult hepatic primary on computed tomography(CT).We review the literature for cases of extrahepatic HCC presentation without known hepatic lesions and discuss strategies to differentiate between metastatic and ectopic *** SUMMARY A 67-year-old male with remotely treated hepatis C was referred for evaluation of an enlarging portocaval,mixed cystic-solid *** CT evaluations demonstrated steatosis,but no cirrhosis or liver *** ultrasound demonstrated a normal-appearing pancreas,biliary tree,and *** needle aspiration yielded atypical *** differential diagnosis included duodenal or pancreatic cyst,lymphoproliferative cyst,stromal or mesenchymal lesions,nodal involvement from gastrointestinal or hematologic malignancy,or duodenal gastrointestinal stromal *** review by a multidisciplinary tumor board,the patient underwent open surgical resection of a 5.2 cm×5.5 cm retroperitoneal mass with pathology consistent with moderately-differentiated *** resonance imaging(MRI)subsequently demonstrated a 1.2 cm segment VIII hepatic lesion with late arterial enhancement,fatty sparing,and intrinsic T1 *** fetoprotein was 23.3 ng/*** patient was diagnosed with HCC with portocaval nodal ***:We surveyed the literature for HCC presenting as extrahepatic masses without history of concurrent or prior intrahepatic *** identified 18 cases of extrahepatic HCC ultimately found to represent metastatic lesions,and 30 cases of extrahepatic HCC found to be primary,ectopic *** Hepatocellular carcinoma can seldomly present with extrahepatic metastasis in the setting of

关键词： Extrahepatic Metastasis Portocaval Lymph node Case report

Crop antiviral defense: Past and future perspective

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Science China Life Sciences 2024年

作者： Zhirui Yang Guangyao Li Yongliang Zhang Fangfang Li Tao Zhou Jian Ye Xianbing Wang Xiaoming Zhang Zongtao Sun Xiaorong Tao Ming Wu Jianguo Wu Yi Li The State Key Laboratory of Protein and plant Gene Research School of Life Sciences Peking University State Key Laboratory of plant Environmental Resilience Frontiers Science Center for Molecular Design Breeding College of Biological Sciences China Agricultural University State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops Vector-borne Virus Research Center College of Plant Protection Fujian Agriculture and Forestry University State Key Laboratory for Biology of plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Agro-Biotechnology and Department of plant pathology China Agricultural University State Key Laboratory of plant Genomics Institute of Microbiology Chinese Academy of Sciences State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of SciencesCAS Center for Excellence in Biotic Interactions University of Chinese Academy of Sciences State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province Institute of Plant Virology Ningbo University Department of plant pathology The Key Laboratory of Plant Immunity Nanjing Agricultural University

Viral pathogens not only threaten the health and life of humans and animals but also cause enormous crop yield losses and contribute to global food insecurity. To defend against viral pathogens, plants have evolved an intricate immune system to perceive and cope with such attacks. Although most of the fundamental studies were carried out in model plants, more recent research in crops has provided new insights into the antiviral strategies employed by crop plants. We summarize recent advances in understanding the biological roles of cellular receptors, RNA silencing, RNA decay, hormone signaling, autophagy, and ubiquitination in manipulating crop host-mediated antiviral responses. The potential functions of circular RNAs, the rhizosphere microbiome, and the foliar microbiome of crops in plant-virus interactions will be fascinating research directions in the future. These findings will be beneficial for the development of modern crop improvement strategies.

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Clathrin light chains negatively regulate plant immunity by hijacking the autophagy pathway

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plant Communications 2024年第8期5卷 172-188页

作者： Hu-Jiao Lan Jie Ran Wen-Xu Wang Lei Zhang Ni-Ni Wu Ya-Ting Zhao Min-Jun Huang Min Ni Fen Liu Ninghui Cheng Paul A.Nakata Jianwei Pan Steven A.Whitham Barbara J.Baker Jian-Zhong Liu Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic plants Zhejiang Normal UniversityJinhua 321004China Institute of plant Genetics and Developmental Biology College of Chemistry and Life SciencesZhejiang Normal UniversityJinhua 321004China College of Life Sciences Lanzhou UniversityLanzhou 730000China Department of plant pathology and microbiology Iowa State UniversityAmesIA 50011USA Department of plant and Microbial Biology University of CaliforniaBerkeleyBerkeleyCA 94720USA plant Gene Expression Center U.S.Department of Agriculture-Agricultural Research ServiceAlbanyCA 94706USA Lushan Botanical Garden Chinese Academy of SciencesJiujiang 332000China U.S.Department of Agriculture-Agricultural Research Service Children’s Nutrition Research CenterDepartment of PediatricsBaylor College of MedicineHoustonTX 77030USA

The crosstalk between clathrin-mediated endocytosis(CME)and the autophagy pathway has been reported in mammals;however,the interconnection of CME with autophagy has not been established in ***,we report that the Arabidopsis CLATHRIN LIGHT CHAIN(CLC)subunit 2 and 3 double mutant,clc2-1 clc3-1,phenocopies Arabidopsis AUTOPHAGY-RELATED GENE(ATG)mutants in both autoimmunity and nutrient ***,the autophagy pathway is significantly compromised in the clc2-1 clc3-1 ***,multiple assays demonstrate that CLC2 directly interacts with ATG8h/ATG8i in a domain-specific *** expected,both GFP-ATG8h/GFP-ATG8i and CLC2-GFP are subjected to autophagic degradation,and degradation of GFP-ATG8h is significantly reduced in the clc2-1 clc3-1 ***,simultaneous knockout of ATG8h and ATG8i by CRISPR-Cas9 results in enhanced resistance against Golovinomyces cichoracearum,supporting the functional relevance of the CLC2-ATG8h/8i *** conclusion,our results reveal a link between the function of CLCs and the autophagy pathway in Arabidopsis.

关键词： autophagy clathrin light chain immunity clathrin-mediated endocytosis senescence cell death

Bridging the divide: Harmonizing polarized clinical laboratory medicine practices

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iLABMED 2024年第2期2卷 67-69页

作者： Yi-Wei Tang Joseph D.Yao Medical Affairs Danaher Corporation/CepheidNew YorkNew YorkUSA division of Clinical microbiology Department of Laboratory Medicine and PathologyMayo ClinicRochesterMinnesotaUSA

In today's healthcare,clinical laboratory medicine stands as a cornerstone of patient care,providing vital diagnostic insights that inform decisions in disease ***,within this crucial field,a dichotomy persists between two predominant models of laboratory testing to support clinical practice:point-of-care testing(PoCT)and central laboratory testing[1].This schism,while born of practical necessity and evolving technology,presents both opportunities and challenges that warrant closer examination.

关键词： central laboratory testing clinical microbiology point-of-care testing

A glycine-rich nuclear effector VdCE51 of Verticillium dahliae suppresses plant immune responses by inhibiting the accumulation of GhTRXH2

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The Crop Journal 2024年第4期12卷 1137-1149页

作者： Chi Li Yingqi Huang Wenjing Shang Jieyin Chen Steven J.Klosterman Krishna V.Subbarao Jun Qin Xiaoping Hu State Key Laboratory of Crop Stress Resistance and High-Efficiency Production Key Laboratory of Plant Protection Resources and Pest Management of Ministry of EducationKey Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural AffairsCollege of Plant ProtectionNorthwest A&F UniversityYangling 712100ShaanxiChina State Key Laboratory for Biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China Western Agricultural Research Center Chinese Academy of Agricultural SciencesChangji 831100XinjiangChina Agricultural Research Service United States Department of AgricultureSalinasCA 93905USA Department of plant pathology University of CaliforniaDavisc/o United States Agricultural Research StationSalinasCA 93905USA

Verticillium dahliae is an important soil-borne fungal pathogen that causes great yield losses in many cash *** of this fungus are known to regulate plant immunity but the mechanism much remains unclear.A glycine-rich nuclear effector,VdCE51,was able to suppress immune responses in tobacco against Botrytis cinerea and Sclerotinia *** effector was a required factor for full virulence of ***,and its nuclear localization was a requisite for suppressing plant *** thioredoxin GhTRXH2,identified as a positive regulator of plant immunity,was a host target of *** findings show a virulence regulating mechanism whereby the secreted nuclear effector VdCE51 interferes with the transcription of PR genes,and the SA signaling pathway by inhibiting the accumulation of GhTRXH2,thus suppressing plant immunity.

关键词： Verticillium dahliae plant immunity Effector Thioredoxin

Identification of propranolol and derivatives that are chemical inhibitors of phosphatidate phosphatase as potential broad-spectrum fungicides

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plant Communications 2024年第1期5卷 215-230页

作者： Juan Zhao Yu Chen Zhifen Ding Yaru Zhou Ruiqing Bi Ziting Qin Lei Yang Peng Sun Qiping Sun Guang Chen Daiyuan Sun Xianya Jiang Lu Zheng Xiao-Lin Chen Hu Wan Guanghui Wang Qiang Li Huailong Teng Guotian Li National Key Laboratory of Agricultural microbiology Hubei Hongshan LaboratoryHubei Key Laboratory of Plant PathologyThe Center of Crop NanobiotechnologyHuazhong Agricultural UniversityWuhan 430070China College of Science Huazhong Agricultural UniversityWuhan 430070China National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China State Key Laboratory of Crop Stress Biology for Arid Areas College of Plant ProtectionNorthwest A&F UniversityYangling 712100China College of Chemistry and Life Sciences Sichuan Provincial Key Laboratory for Development and Utilization of Characteristic Horticultural Biological ResourcesChengdu Normal UniversityChengdu 611130China Yangjiang Institute of Agricultural Sciences Yangjiang 529500China

plant diseases cause enormous economic losses in agriculture and threaten global food security,and application of agrochemicals is an important method of crop disease *** of disease-resis-tance mechanisms and synthesis of highly bioactive agrochemicals are thus important research ***,we show that propranolol,a phosphatidate phosphatase(Pah)inhibitor,effectively suppresses fungal growth,sporulation,sexual reproduction,and infection of diverse *** MoPah1 enzyme activity of the rice blast fungus Magnaporthe oryzae is inhibited by *** in lipid metabolism are associated with inhibited hyphal growth and appressorium formation caused by propranolol in *** inhibits a broad spectrum of 12 plant pathogens,effectively inhibiting infection of barley,wheat,maize,tomato,and *** improve antifungal capacity,we synthesized a series of propranolol derivatives,one of which shows a 16-fold increase in antifungal ability and binds directly to *** and its derivatives can also reduce the severity of rice blast and Fusarium head blight of wheat in *** together,our results demonstrate that propranolol suppresses fungal development and infection through mechanisms involved in lipid *** and its derivatives may therefore be promising candidates for fungicide development.

关键词： propranolol molecular design chemical modification virulence lipid metabolism Pyricularia oryzae