检索结果-南通市图书馆

Intracellular Delivery of mRNA in Adherent and Suspension Cells by Vapor Nanobubble Photoporation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2020年第12期12卷 404-420页

作者： Laurens Raes Stephan Stremersch Juan CFraire Toon Brans glenn Goetgeluk Stijn De Munter Lien Van Hoecke Rein Verbeke Jelter Van Hoeck Ranhua Xiong xavier Saelens Bart Vandekerckhove Stefaan De Smedt Koen Raemdonck Kevin Braeckmans Laboratory of General Biochemistry&Physical Pharmacy Ghent University9000 GhentBelgium Cancer Research Institute Ghent(CRIG) 9000 GhentBelgium Department of Diagnostic Sciences Ghent University9000 GhentBelgium VIB-UGent Center for Medical Biotechnology 9052 GhentBelgium Department of Biomedical Molecular Biology Ghent University9000 GhentBelgium Department of Biochemistry and Microbiology Ghent University9000 GhentBelgium

Efficient and safe cell engineering by transfection of nucleic acids remains one of the long-standing hurdles for fundamental biomedical research and many new therapeutic applications,such as CAR T cell-based *** has recently gained increasing attention as a more safe and versatile alternative tool over viral-or DNA transposon-based approaches for the generation of adoptive T ***,limitations associated with existing nonviral mRNA delivery approaches hamper progress on genetic engineering of these hard-to-transfect immune *** this study,we demonstrate that gold nanoparticle-mediated vapor nanobubble(VNB)photoporation is a promising upcoming physical transfection method capable of delivering mRNA in both adherent and suspension *** transfection experiments on HeLa cells showed the importance of transfection buffer and cargo concentration,while the technology was furthermore shown to be effective for mRNA delivery in Jurkat T cells with transfection efficiencies up to 45%.Importantly,compared to electroporation,which is the reference technology for nonviral transfection of T cells,a fivefold increase in the number of transfected viable Jurkat T cells was ***,our results point toward the use of VNB photoporation as a more gentle and efficient technology for intracellular mRNA delivery in adherent and suspension cells,with promising potential for the future engineering of cells in therapeutic and fundamental research applications.

关键词： Transfection mRNA Photoporation Optoporation Gold nanoparticles Vapor nanobubbles

Performance index: An expeditious tool to screen for improved drought resistance in the Lathyrus genus

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2014年第7期56卷 610-621页

作者： Susana Silvestre Susana de Sousa Araújo Maria Carlota vaz Patto Jorge Marques da Silva Center for Biodiversity Functional and Integrative Genomics(BioFIG)and Department of Plant BiologyFaculty of ScienceUniversity of LisbonCampo Grande Animal and Veterinary Sciences Research Center Tropical Research Institute(IICT‐CVZ)Faculty of Veterinary Medicine Plant Cell Biotechnology Lab Institute for Chemistry and Biological Technology António Xavier-New University of Lisbon(ITQB‐UNL)

Some species of the Lathyrus genus are among the most promising crops for marginal lands, with high resilience to drought, flood, and fungal diseases, combined with high yields and seed nutritional value. However, lack of knowledge on the mechanisms underlying its outstanding performance and methodologies to identify elite genotypes has hampered its proper use in breeding. Chlorophyl a fast fluorescence transient （JIP test）, was used to evaluate water deficit （WD） resistance in Lathyrus genus. Our results reveal unaltered photochemical values for al studied genotypes showing resistance to mild WD. Under severe WD, two Lathyrus sativus genotypes showed remarkable resilience maintaining the photochemical efficiency, contrary to other genotypes studied. Performance index （PIABS） is the best parameter to screen genotypes with improved performance and grain production under WD. Moreover, we found that JIP indices are good indicators of genotypic grain production under WD. Quantum yield of electron transport （wEo） and efficiency with which＆trapped excitons can move electrons further than QA （c0） revealed as important traits related to improved photosyn-thetic performance and should be exploited in future Lathyrus germplasm improvements. The JIP test herein described showed to be an expeditious tool to screen and to identify elite genotypes with improved drought resistance.

关键词： Grain production JIP test Lathyrus germplasm photochemical performance water deficit

Shared and tailored common bean transcriptomic responses to combined fusarium wilt and water deficit

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Horticulture Research 2021年第1期8卷 2163-2180页

作者： Susana T.Leitao Carmen Santos Susana de Sousa Araujo Diego Rubiales Maria Carlota vaz Patto Instituto de Tecnologia Quimica e Biologica Antonio xavier Universidade Nova de LisboaOeirasPortugal Association BLC3-Technology and Innovation Campus Centre Bio R&D UnitLagares da BeiraPortugal Institute for Sustainable Agriculture CSICCordobaSpain

Common bean(Phaseolus vulgaris L.),one of the most consumed food legumes worldwide,is threatened by two main constraints that are found frequently together in nature,water deficit(WD)and fusarium wilt(Fop).To understand the shared and unique responses of common bean to Fop and WD,we analyzed the transcriptomic changes and phenotypic responses in two accessions,one resistant and one susceptible to both stresses,exposed to single and combined *** responses(photosynthetic performance and pigments quantification)and disease progression were also *** combined FopWD imposition negatively affected the photosynthetic performance and increased the susceptible accession disease *** susceptible accession revealed a higher level of transcriptional changes than the resistant one,and WD single stress triggered the highest transcriptional *** 89 differentially expressed genes were identified exclusively in combined stresses for the susceptible accession,35 were identified in the resistant *** genes belong mainly to“stress”,“signaling”,“cell wall”,“hormone metabolism”,and“secondary metabolism”functional *** the up-regulated genes with higher expression in the resistant accession,the cysteine-rich secretory,antigen 5 and Pr-1(CAP)superfamily protein,a ribulose bisphosphate carboxylase family protein,and a chitinase A seem promising targets for multiple stress breeding.

关键词： metabolism assessed stress

Common bean SNP alleles and candidate genes affecting photosynthesis under contrasting water regimes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Horticulture Research 2021年第1期8卷 110-123页

作者： Susana Trindade Leitao Maria Catarina Bicho Priscila Pereira Maria Joao Paulo Marcos Malosetti Susana de Sousa Araujo Fred van Eeuwijk Maria Carlota vaz Patto Instituto de Tecnologia Quimica e Biológica Antonio xavier Universidade Nova de LisboaOeirasPortugal Wageningen University&Research WageningenThe Netherlands Present address:Instituto Superior de Agronomia Universidade de LisboaLisboaPortugal Present address:Nunhems Vegetable Seeds NunhemThe Netherlands Present address:Association BLC3-Technology and Innovation Campus Centre Bio R&D UnitOliveira do HospitalLisboaPortugal

Water deficit is a major worldwide constraint to common bean(Phaseolus vulgaris L.)production,being photosynthesis one of the most affected physiological *** gain insights into the genetic basis of the photosynthetic response of common bean under water-limited conditions,a collection of 158 Portuguese accessions was grown under both well-watered and water-deficit *** gas-exchange parameters were measured and photosynthetic pigments *** same collection was genotyped using SNP arrays,and SNP-trait associations tested considering a linear mixed model accounting for the genetic relatedness among accessions.A total of 133 SNP-trait associations were identified for net CO 2 assimilation rate,transpiration rate,stomatal conductance,and chlorophylls a and b,carotenes,and xanthophyll *** of these associations were detected under water-deficit and 43 under well-watered conditions,with only two associations common to both *** candidate genes revealed that stomatal regulation,protein translocation across membranes,redox mechanisms,hormone,and osmotic stress signaling were the most relevant processes involved in common bean response to water-limited *** candidates are now preferential targets for common bean water-deficit-tolerance ***,new sources of water-deficit tolerance of Andean,Mesoamerican,and admixed origin were detected as accessions valuable for breeding,and not yet explored.

关键词： breeding water assimilation

First genetic linkage map of Lathyrus cicera based on RNA sequencing-derived markers: Key tool for genetic mapping of disease resistance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Horticulture Research 2018年第1期5卷 345-358页

作者： Carmen Santos Nuno Felipe Almeida Mara Lisa Alves Ralf Horres Nicolas Krezdorn Susana Trindade Leitão Thaïs Aznar-Fernández Björn Rotter Peter Winter Diego Rubiales Maria Carlota vaz Patto Instituto de Tecnologia Química e Biológica António xavier Universidade Nova de LisboaAv.da RepúblicaOeiras2780-157Portugal GenXPro GmbH Frankfurt am MainD-60438Germany Institute for Sustainable Agriculture CSICCórdobaE-14004Spain

The Lathyrus cicera transcriptome was analysed in response to rust(Uromyces pisi)infection to develop novel molecular breeding tools with potential for genetic mapping of resistance in this robust orphan legume *** RNA-seq library each was generated from control and rust-inoculated leaves from two *** genotypes with contrasting quantitative resistance,de novo assembled into contigs and sequence polymorphisms were *** toto,19,224 SNPs differentiate the susceptible from the partially resistant genotype’s *** addition,we developed and tested 341 expressed E-SSR markers from the contigs,of which 60.7%varied between the two *** genotypes.A first *** linkage map was created using part of the developed markers in a RIL population from the cross of the two *** map contains 307 markers,covered 724.2 cM and is organised in 7 major and 2 minor linkage groups,with an average mapping interval of 2.4 *** genic markers also enabled us to compare their position in *** map with the physical position of the same markers mapped on Medicago truncatula genome,highlighting a high macrosyntenic conservation between both *** study provides a large new set of genic polymorphic molecular markers with potential for mapping rust *** represents the first step towards genomics-assisted precision breeding in ***.

关键词： breeding linkage resistance

Stability of the Antioxidant Activity of Flavonoids after Gamma Irradiation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2011年第5期2卷 490-493页

作者： Antonio Fernando de Melo vaz Marthyna Pessoa de Souza Adriana Carla Cavalcante Malta Argolo Ana Maria Mendonca de Albuquerque Melo Maria Luiza Vilela Oliva Haroldo Sátiro xavier Luana Cassandra Breitenbach Barroso Coelho Maria Tereza dos Santos Correia Department of Biochemistry Federal University of PernambucoRecifeBrazil Department of Biophysics and Radiobiology Fed-eral University of PernambucoRecifeBrazil Department of Biochemistry Federal University of Sao PauloSao PauloBrazil Department of Pharmaceutical Science Federal University of PernambucoRecifeBrazil

Food irradiation has the purpose of destroying insects or microorganisms, thereby increasing the safety and shelf life of foods. Flavonoids are ubiquitous plant secondary products with radical scavenger ability. In the present study their antioxidant stability after gamma irradiation was evaluated. The flavonoids showed fast scavenger ability measured with the 2.2-diphenyl-1-picrylhydrazyl radical (DPPH) after high doses of radiation. The low damage caused by irra- diation on antioxidant capacity of the flavonoids shows their potential use in combating chemical oxidation of bio- molecules in irradiated foods.

关键词： Flavonoid Food Irradiation Scavenger Capacity Gamma Irradiation

Parasite Fauna of Lutjanus synagris Commercialized in the Fish Market from Bragança-PA,Brazil

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Zoological Research 2019年第3期1卷 1-4页

作者： Natalino da Costa Sousa Daiana Silva dos Santos Silmara Rosa Silva Alexandre vaz da Silva Jucimauro de Araújo P.Junior João Vitor Antunes Miranda Pedro Rodrigo Nery de Souza Matheus Carvalho de Melo Fagner de Melo xavier Wellington Lima da Silva Junior Fabricio Ramos Menezes Márcia Valeria Silva do Couto Federal University of Pará(UFPA) Campus BragançaAlameda Leandro RibeiroBragança68600-000PABrazil Federal University of Pará(UFPA) Campus Tucuruí-ParáBrazil Federal University of Sergipe(UFS) Departamento de Pesca e Aquicultura.Aracaju-SergipeBrazil Instituto Federal do Pará(IFPA) Campus de Cametá-ParáBrazil

Studies about the parasite fauna of marine fish highlights as an important problem for public health with zoonotic parasites or affecting the fish ***,this study evaluated the parasite fauna of Lutjanus synagris commercialized in the fish market from Braganç*** laboratory,58 fish were measured,weighted and conducted to parasitological analysis to determine parasitological indexes and relative *** parasite was fixed and identified until to the lowest taxonomic *** the parasitological analysis,it found Cymothoidae,Digenea,Cucullanus *** Procamallanus(Spirocamallanus)sp.,with total prevalence 67.24%.Digenea showed the highest prevalence and mean intensity *** nematode,Cucullanus *** the greater prevalence and relative dominance,while Procamallanus(Spirocamallanus)*** the greater mean intensity and *** showed the lowest prevalence and mean intensity *** conclusion,the parasite fauna of *** has been noted with low diversity,reporting the nematode occurrence Procamallanus(Spirocamallanus).

关键词： Cymothoidae Parasite Marine fish