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CRISPR/Cas9-Targeted Knockout of Rice Susceptibility Genes OsDjA2 and OsERF104 Reveals Alternative Sources of Resistance to Pyricularia oryzae

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Rice science 2022年第6期29卷 535-544,I0023-I0030页

作者： Fabiano T.P.KTÁVORA Anne Cécile MEUNIER Aurore VERNET Murielle PORTEFAIX Joëlle MILAZZO Henri ADREIT Didier THARREAU Octávio LFRANCO angela mehta Department of Genetics and Biotechnology Federal University of Juiz de ForaJuiz de Fora-MG 36036330Brazil Embrapa Genetic Resources and Biotechnology Brasília-DF 70770-917Brazil Genetic Improvement and Adaptation of Mediterranean and Tropical Plants Agricultural Research Center for International Development(CIRAD)Montpellier 34398 CEDEX 5France CIRAD-INRAe-Agro Institute University of MontpellierMontpellier 34000France Plant Health Institute of Montpellier CIRADMontpellier 34398France University of Montpellier National Institute of Agronomic ResearchResearch Institute for DevelopmentMontpellier SupAgroMontpellier 34398France Department of Genomics Science and Biotechnology Proteomics Analysis CenterCatholic University of BrasíliaBrasília-DF 71966-900Brazil S-Inova Biotech Catholic University of Dom BoscoCampo Grande-MS 79117-900Brazil

Rice genes OsDjA2 and OsERF104,encoding a chaperone protein and an APETELA2/ethylene-responsive factor,respectively,are strongly induced in a compatible interaction with blast fungus,and also have function in plant susceptibility validated through gene ***,we reported the CRISPR/Cas9 knockout of OsDjA2 and OsERF104 genes resulting in considerable improvement of blast resistance.A total of 15 OsDjA2(62.5%)and 17 OsERF104(70.8%)T_(0)transformed lines were identified from 24 regenerated plants for each target and used in downstream *** of homozygous T1 mutant lines revealed not only a significant decrease in the number of blast lesions but also a reduction in the percentage of diseased leaf area,compared with the infected control *** results supported CRISPR/Cas9-mediated target mutation in rice susceptibility genes as a potential and alternative breeding strategy for building resistance to blast disease.

关键词： gene editing plant-pathogen interaction Magnaporthe pathosystem plant immunity blast resistance S-gene rice

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Mycosphaerella areola—The Teleomorph of Ramularia areola of Cotton in Brazil, and Its Epidemiological Significance

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American Journal of Plant Sciences 2016年第10期7卷 1415-1422页

作者： Yeshwant R. mehta Rafael Galbieri Mariana S. Marangoni Leandro Camargo Borsato Heloisa Poliselo Rodrigues Jéssica Pereira angela mehta A Instituto Agronomico do Paraná—IAPAR Londrina Brazil Instituto Mato-Grossense do Algodao (IMA) Primavera do Leste—MT Tropical Agriculture—FAMEVZ/UFMT Cuiabá Brazil Embrapa Cenargen Brasilia Brazil

While Ramularia leaf blight of cotton caused by Ramularia areola is of top most importance for Brazil, information is lacking regarding the survival mechanism of this pathogen during the cotton-free period. The teleomorph of R. areola is expected to belong to the genus Mycosphaerella. In the present study attempts were made to verify occurrence of this teleomorph in the State of Mato Grosso, Brazil. Decaying cotton leaves were collected two months after harvest of 2014 from 44 commercial and experimental fields where aerial fungicidal applications were made or not during the crop cycle to control the Ramularia leaf blight. Examination of the decaying cotton leaves revealed presence of abundant sclerotia, spermagonia and ascoma of Mycosphaerella sp. intermingled with each other during the cotton-free period in most of the leaf samples. Mono-ascospore isolations were obtained from the ascoma and considering their cultural, morphological, pathological and DNA sequence analysis they were identified as Mycosphaerella areola. M. areola and R. areola isolates produced similar symptoms under glasshouse inoculations. Reisolation of the pathogen from the symptoms produced by M. areola isolates yielded R. areola. Some cotton leaves showing such symptoms were kept on the soil surface on plastic trays for two months under natural field condition. After this period the decaying leaves showed abundant perithecia identical to their original M. areola. ITS rDNA sequence analyses revealed identical sequences from M. areola and R. areola isolates. Occurrence and the viability of the perfect stage M. areola during the cotton-free period on the left-over stubble from one season to another were interpreted as the survival mechanism of the pathogen and were considered responsible for the Ramularia blight epidemics in the State of Mato Grosso. Disease management practices for the State of Mato Grosso are discussed. This is the first report about the occurrence of the M. areola in Brazil.

关键词： Gossypium hirsutum Ramularia Leaf Blight Sexual Morph ITS rDNA Sequence Analysis

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Remodeling of the cell wall as a drought-tolerance mechanism of a soybean genotype revealed by global gene expression analysis

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aBIOTECH 2021年第1期2卷 14-31页

作者： Flaviane Silva Coutinho Juliano Mendonça Rodrigues Lucas Leal Lima Rosilene Oliveira Mesquita Paola Avelar Carpinetti João Paulo Batista Machado Camilo Elber Vital Pedro Marcus Vidigal Maria Eduarda Soares Ramos Mariana Rocha Maximiano angela mehta Maria Goreti Almeida Oliveira Elizabeth Pacheco Batista Fontes Humberto Josuéde Oliveira Ramos Departamento de Bioquímica e Biologia Molecular Universidade Federal de ViçsaViçsaMinas GeraisBrazil Departamento de Fitotecnia Universidade Federal do CearáFortalezaCearáBrazil Núcleo de Análise de Biomoléculas(NuBioMol) Universidade Federal de ViçsaViçsaMinas GeraisBrazil Instituto de Ciéncias Agrárias Universidade Federal de ViçsaFlorestalMinas GeraisBrazil Embrapa Recursos Genéticos e Biotecnologia BrasíliaDFBrazil Universidade Federal de Juiz de Fora Juiz de ForaMinas GeraisBrazil

Drought stress is major abiotic stress that affects soybean ***,it is widely desirable that soybean becomes more tolerant to *** provide insights into regulatory mechanisms of the stress response,we compared the global gene expression profiles from leaves of two soybean genotypes that display different responses to water-deficit(BR 16 and Embrapa 48,drought-sensitive and droughttolerant,respectively).After the RNA-seq analysis,a total of 5335 down-regulated and 3170 up-regulated genes were identified in the *** the other hand,the number of genes differentially expressed was markedly lower in the Embrapa 48,355 up-regulated and 471 down-regulated ***,induction and expression of protein kinases and transcription factors indicated signaling cascades involved in the drought ***,the results suggest that the metabolism of pectin is differently modulated in response to drought stress and may play a role in the soybean defense mechanism against *** occurs via an increase of the cell wall plasticity and crosslink,which contributed to a higher hydraulic conductance(Kf)and relative water content(RWC%).The drought-tolerance mechanism of the Embrapa 48 genotype involves remodeling of the cell wall and increase of the hydraulic conductance to the maintenance of cell turgor and metabolic processes,resulting in the highest leaf RWC,photosynthetic rate(A),transpiration(E)and carboxylation(A/Ci).Thus,we concluded that the cell wall adjustment under drought is important for a more efficient water use which promoted a more active photosynthetic metabolism,maintaining higher plant growth under drought stress.

关键词： Gene expression RNA-seq Molecular physiology Water-use efficiency

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Understanding activity of butyrate at a cellular level

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Neural Regeneration Research 2025年第8期20卷 2323-2324页

作者： Prapti Chakraborty angela S.Laird Macquarie University Motor Neuron Disease Research Centre Macquarie Medical SchoolFaculty of MedicineHealth and Human SciencesMacquarie UniversitySydneyAustralia

Butyrate is a short-chain fatty acid of four carbons in length that is a by-product produced by the microbial fermentation of dietary fiber and undigested carbohydrates within the *** the years,butyrate has attracted ... 详细信息

关键词： carbons butyrate fiber

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Calcium-sensitive protein MLC1 as a possible modulator of the astrocyte functional state

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Neural Regeneration Research 2025年第7期20卷 2008-2010页

作者： Elena Ambrosini angela Lanciotti Maria Stefania Brignone Department of Neuroscience Istituto Superiore di SanitàRomeItaly

Astrocytes,the main population of glial cells in the central nervous system(CNS),exert essential tasks for the control of brain tissue homeostasis,supporting neuron and other glial cell activity from the developmental stage to adult *** maintain the optimal functionality of the brain,astroglial cells are particularly committed to reacting to every change in tissue homeostatic conditions,from mild modifications of the physiological environment,a process called astrocyte activation,to the more severe alterations occurring in pathological situations causing astrocyte reactivity or reactive astrogliosis(Escartin et al.,2021).During these reactive states,astrocytes mount an active,progressive response encompassing morphological,molecular,and interactional remodeling,leading to the acquisition of new functions and the loss of others,whose intensity,duration,and reversibility are dependent on the nature of the stimulus and regulated in a context-specific manner.

关键词： alterations modulator maintain

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Spastin and alsin protein interactome analyses begin to reveal key canonical pathways and suggest novel druggable targets

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Neural Regeneration Research 2025年第3期20卷 725-739页

作者： Benjamin R.Helmold angela Ahrens Zachary Fitzgerald P.Hande Ozdinler Department of Neurology Feinberg School of MedicineNorthwestern UniversityChicagoILUSA Center for Molecular Innovation and Drug Discovery Center for Developmental TherapeuticsChemistry of Life Processes InstituteNorthwestern UniversityEvanstonILUSA Mesulam Center for Cognitive Neurology and Alzheimer’s Disease Feinberg School of MedicineNorthwestern UniversityChicagoILUSA Feinberg School of Medicine Les Turner ALS Center at Northwestern UniversityChicagoILUSA

Developing effective and long-term treatment strategies for rare and complex neurodegenerative diseases is challenging. One of the major roadblocks is the extensive heterogeneity among patients. This hinders understanding the underlying disease-causing mechanisms and building solutions that have implications for a broad spectrum of patients. One potential solution is to develop personalized medicine approaches based on strategies that target the most prevalent cellular events that are perturbed in patients. Especially in patients with a known genetic mutation, it may be possible to understand how these mutations contribute to problems that lead to neurodegeneration. Protein–protein interaction analyses offer great advantages for revealing how proteins interact, which cellular events are primarily involved in these interactions, and how they become affected when key genes are mutated in patients. This line of investigation also suggests novel druggable targets for patients with different mutations. Here, we focus on alsin and spastin, two proteins that are identified as “causative” for amyotrophic lateral sclerosis and hereditary spastic paraplegia, respectively, when mutated. Our review analyzes the protein interactome for alsin and spastin, the canonical pathways that are primarily important for each protein domain, as well as compounds that are either Food and Drug Administration–approved or are in active clinical trials concerning the affected cellular pathways. This line of research begins to pave the way for personalized medicine approaches that are desperately needed for rare neurodegenerative diseases that are complex and heterogeneous.

关键词： ALS2 alsin amyotrophic lateral sclerosis hereditary spastic paraplegia neurodegenerative diseases personalized medicine precision medicine protein interactome protein-protein interactions SPAST spastin

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Role of lipid rafts in liver health and disease

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World Journal of Gastroenterology 2011年第20期17卷 2520-2535页

作者： angela Dolganiuc Department of Medicine University of Massachusetts Medical School

Liver diseases are an increasingly common cause of morbidity and mortality; new approaches for investigation of mechanisms of liver diseases and identification of therapeutic targets are emergent. Lipid rafts (LRs) are specialized domains of cellular membranes that are enriched in saturated lipids; they are small, mobile, and are key components of cellular architecture, protein partition to cellular membranes, and signaling events. LRs have been identified in the membranes of all liver cells, parenchymal and non-parenchymal; more importantly, LRs are active participants in multiple physiological and pathological conditions in individual types of liver cells. This article aims to review experimental-based evidence with regard to LRs in the liver, from the perspective of the liver as a whole organ composed of a multitude of cell types. We have gathered up-to-date information related to the role of LRs in individual types of liver cells, in liver health and diseases, and identified the possibilities of LR-dependent therapeutic targets in liver diseases.

关键词： Hepatocytes Stellate cells Kupffer cells Endothelial cells Signaling Therapeutic Viral HepatitisC virus Metabolism

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A head-to-toe makeover for classical sequencing-by-synthesis helps users to squeeze more out of each base

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National Science Review 2019年第1期6卷 3-4页

作者： Jianbin Wang angela Wu School of Life Sciences Tsinghua University Division of Life Science Hong Kong University of Science and Technology Department of Chemical and Biological Engineering Hong Kong University of Science and Technology

Today, many next-generation sequencing (NGS) methods, technologies and platforms have been developed that allow users to produce Tera base pairs of data in less than one day or ultralong reads covering multiple genes. By far the most popular NGS approach to date is cyclic sequencing-by-synthesis (SBS),whereby each DNA template’s complementary strand is synthesized by DNA polymerase and, as the new strand grows base by base, the identity of each

关键词： A head-to-toe makeover for classical sequencing-by-synthesis helps users to squeeze more out of each base

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Small is beautiful–a glycolytic metabolite signals mTORC1 activation in cancer cell metabolism

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Signal Transduction and Targeted Therapy 2020年第1期5卷 299-300页

作者： angela M.Otto Munich Institute of BioEngineering Technical University of Munich85748 GarchingGermany

Even though the mTOR complex has been known for decades as a nutrient sensor,being thus in focus for drug targeting in metabolic disease and cancer metabolism,it has remained puzzling how it is able to get a sense of glucose availability in ***,a small metabolite of the glycolytic pathway,dihydroxyacetone phosphate,has been identified by Sabatini and his coworkers,who show how mTORC1-activity is regulated in glucose-starved and replenished cancer cells.

关键词： metabolism cancer mTORC1

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How Africa Is Promoting Agricultural Innovations and Technologies amidst the COVID-19 Pandemic

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Molecular Plant 2020年第10期13卷 1345-1346页

作者： angela Joseph Fernando Consultant-The Alliance of Bioversity International and CIAT Km 17 Recta Cali-PalmiraApartado Aéreo 6713763537 CaliColombia

The COVID-19 pandemic has left an indelible mark on Africa's Agribusiness *** of households whose livelihoods depend on farming are facing a huge food *** mitigate these effects,the African Agricultural Technology Foundation(AATF)gathered a panel of renowned agricultural experts through an interactive webinar themed"Promotion of Agricultural Technologies and Innovations for Agri-Business Resilience in Africa in the Wake of COVID-19",the first in a series of several interactive seminars to be held virtually until the end of December *** seminars will focus on several topics specific to agricultural transformation,which revolve around smallholder farmers in Sub-Saharan Africa(SSA)and aim to help them come out of the cataclysmic effect of COVID-19 and recover their business and livelihoods.

关键词： Agricultural Africa interactive

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