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A Review on Genetically Modified Plants Designed to Phytoremediate Polluted Soils： Biochemical Responses and International Regulation

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Pedosphere 2018年第5期28卷 697-712页

作者： Edgar VAZQUEZ-NUNEZ Julian M. PENA-CASTRO Fabian FERNANDEZ-LUQUENO eduardo cejudo Maria G. de la ROSA-ALVAREZ Maria C. GARCIA-CASTANED Departamento de Ingenierias Quimica Electronica y Biomedica Division de Ciencias e Ingenierlas Universidad de Guanajuato (UG) Campus Leon Loma del Bosque 103 Leon Gto. 37150 (Mexico) Laboratorio de Biotecnologla Vegetal Instituto de Biotecnologia Universidad del Papaloapan Tuxtepec Oaxaca 68333 (Mexico) programa en Sustentabilidad de los Recursos Naturales y Eneryla Cinvestav Saltillo Industria Metalurgica 1062 Parque Industrial Saltillo-Ramos-Arizpe Ramos Arizpe Coahuila 25900 (Mexico) CONACYT Unidad de Ciencias del Agua (UCIA) Centro de Investigacion Cientifica de Yucatan A.C. Cancdn Quintana Roo 77500 (Mexico) Center for the Environmental Implications of Nanotechnology University of California at Los Angeles- University of Texas at El Paso 500 W University Ave El Paso 79968 (USA) CONACYT Universidad de Guanajuato Loma del Bosque 103 Leon Guanajuato 37150 (Mexico)

In recent years,there has been an increasing interest in finding sustainable strategies for the efficient removal of contaminants from *** objective of this review is to examine the biochemical principles of specific genetic modifications in plants,their applications in the field for specific contaminants as phytotechnologies,and their international *** addition,the review presents some biological aspects of rhizosphere-related phenomena,the interactions of organic and inorganic pollutants with plants,and the performance of the phytotechnologies across the *** the last few decades,at least eight genera of genetically modified plants(GMPs)have been tested and used for soil remediation with outstanding ***,Nicotiana,and Oryza are the plant genera most widely *** plant genes such as metal transporters,chelators,metallothioneins,phytochelatins,and oxygenases have been transferred to plants to improve the elimination of contaminants in *** discuss some important aspects of gene manipulation and its application for removal of diverse contaminants.A key challenge faced by phytotechnologies is the final disposal of the generated biomass,from a safety *** argue that the commercial success of phytotechnologies depends on the generation of valuable biomass on contaminated land and its use for bioenergy *** use of such technologies would promote a broader understanding of the importance of plants,especially GMPs,in the environment and their contribution to environmental sustainability.

关键词： bioenergy contaminants gene manipulation phytotechnology plant-microbe interaction regulatory policy soil pollu-tion soil remediation

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Data-driven drug repositioning using olfactory omics profiles:challenges and perspectives in neurodegeneration

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Neural Regeneration Research 2025年第7期20卷 1997-1998页

作者： Paz Cartas-cejudo Adriana Cortés Mercedes Lachén-Montes Elena Anaya-Cubero Joaquín Fernández-Irigoyen Enrique Santamaría Clinical Neuroproteomics Unit Proteomics PlatformNavarrabiomedHospitalario Universitario de Navarra(HUN)Universidad Pública de Navarra(UPNA)IdiSNANavarra Institute for Health ResearchPamplonaSpain

Data-driven drug repositioning using olfactory omics profiles-challenges and perspectives in neurodegeneration:Neurodegenerative diseases are characterized by progressive degeneration and loss of neuronal function in the central nervous *** diseases are often characterized as proteinopathies,which are disorders primarily driven by the aggregation or misfolding of specific amyloid proteins within cells,leading to their dysfunction and eventual *** the gain-of-function hypothesis related to the aggregation of these proteins,recently,an alternative hypothesis regarding the loss-of-function of the soluble monomeric proteins during the process of aggregation into amyloids is gaining *** last event is called proteinopenia and refers to conditions characterized by a deficiency or decrease in the levels of specific soluble proteins in the body(Ezzat et al.,2023).It has been demonstrated that levels of soluble proteins involved in neurodegenerative diseases are decreased.

关键词： diseases drug amyloid

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2-Cys Peroxiredoxins Participate in the Oxidation of Chloroplast Enzymes in the Dark

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Molecular Plant 2018年第11期11卷 1377-1388页

作者： Valle Ojeda Juan Manuel Perez-Ruiz Francisco Javier cejudo Instituto de Bioquimica Vegetaly Fotosintesis Universidad de Sevilla and Consejo Superior de lnvestigaciones CientificasAvenida Americo Vespucio 4941092SevillaSpain

Most redox-regulated chloroplast enzymes are reduced during the day and oxidized during the *** the reduction mechanism of light-dependent enzymes is well known,the mechanism mediating their oxidation in the dark remains *** thiol-dependent peroxidases,2-Cys peroxiredoxins (Prxs),play a key role in light-dependent reduction of chloroplast *** transfer reducing equivalents of thiols to hydrogen peroxide,suggesting the participation of these peroxidases in enzyme oxidation in the ***,we have addressed this issue by analyzing the redox state of well-known redox-regulated chloroplast enzymes in response to darkness in Arabidopsis thaliana mutants deficient in chloroplastlocalized Prxs (2-Cys Prxs A and B,Prx ⅡE,and Prx Q).Mutant plants lacking 2-Cys Prxs A and B,and plants overexpressing NADPH-dependent thioredoxin (Trx) reductase C showed delayed oxidation of chloroplast enzymes in the *** contrast,the deficiencies of Prx ⅡE or Prx Q exerted no *** vitro assays allowed the reconstitution of the pathway of reducing equivalents from reduced fructose 1,6-bisphosphatase to hydrogen peroxide mediated by Trxs and 2-Cys *** together,these results suggest that 2-Cys Prxs participate in the short-term oxidation of chloroplast enzymes in the dark.

关键词： chloroplast enzyme oxidation peroxiredoxin thioredoxin hydrogen peroxide darkness

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NADPH Thioredoxin Reductase C Controls the Redox Status of Chloroplast 2-Cys Peroxiredoxins in Arabidopsis thaliana

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Molecular Plant 2009年第2期2卷 298-307页

作者： Kerstin Kirchsteiger Pablo Pulido Maricruz Gonzalez Francisco Javier cejudo Instituto de Bioquimica Vegetal y Fotosintesis Universidad de Sevilla and CSIC Avda Americo Vespucio 49 41092-Sevilla Spain

Chloroplast 2-Cys peroxiredoxins （2-Cys Prxs） are efficiently reduced by NADPH Thioredoxin reductase C （NTRC）. To investigate the effect of light/darkness on NTRC function, the content of abundant plastidial enzymes, Rubisco, glutamine synthetase （GS）, and 2-Cys Prxs was analyzed during two consecutive days in Arabidopsis wild-type and ntrc mutant plants. No significant difference of the content of these proteins was observed during the day or the night in wildtype and mutant plants. NTRC deficiency caused a lower content of fully reduced 2-Cys Prxs, which was undetectable in darkness, suggesting that NTRC is the most important pathway for 2-Cys Prx reduction, probably the only one during the night. Arabidopsis contains two plastidial 2-Cys Prxs, A and B, for which T-DNA insertion lines were characterized showing the same phenotype as wild-type plants. Two-dimensional gel analysis of leaf extracts from these mutants allowed the identification of basic and acidic isoforms of 2-Cys Prx A and B. In-vitro assays and mass spectrometry analysis showed that the acidic isoform of both proteins is produced by overoxidation of the peroxidatic Cys residue to sulfinic acid. 2-Cys Prx overoxidation was lower in the NTRC mutant. These results show the important function of NTRC to maintain the redox equilibrium of chloroplast 2-Cys Prxs.

关键词： Chloroplast peroxiredoxin NADPH thioredoxin reductase C overoxidation thioredoxin Arabidopsis.

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NADPH Thioredoxin Reductase C Is Involved in Redox Regulation of the Mg-Chelatase I Subunit in Arabidopsis thaliana Chloroplasts

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Molecular Plant 2014年第7期7卷 1252-1255页

作者： Juan Manuel Pérez-Ruiz Manuel Guinea Leonor Puerto-Galán Francisco Javier cejudo Instituto de Bioquímica Vegetal y Fotosíntesis Universidad de Sevilla-Consejo Superior de Investigaciones Científicas 41092-Sevilla Spain Umea Plant Science Centre Department of Plant Physiology Umea University S-901 87 Umea Sweden

Dear Editor, The synthesis of tetrapyrroles, including chlorophylls, is central for chloroplast function. The metabolic pathway of tetrapyrrole biosynthesis in Arabidopsis is initiated with the formation of amino levulinic acid （ALA）, which is con- verted by a series of common reactions to protoporphy- tin IX （Proto IX）（Tanaka et al., 2011）. Then the pathway diverges into two branches： the synthesis of heme/bilin and chlorophylls. The insertion of Mg2＋ into Proto IX, cata- lyzed by Mg-chelatase, is the first committed reaction of the chlorophyll branch and is considered a key step for the regulation of the whole pathway. Mg-chelatase is a het- erotrimeric enzyme composed of subunits CHLI, CHLD, and CHLH, the reaction mechanism of which has been estab- lished. It is a two-step process consisting in the Mg-ATP- dependent activation of the enzyme, which implies the formation of a ternary complex of subunits CHLI and CHLD with ATP-Mg2＋, and Mg2＋ chelation, which is catalyzed by CHLH driven by ATP hydrolysis, CHLI providing ATPase activity to the complex （Tanaka et al., 2011）. In Arabidopsis, CHLH and CHLD are encoded by single genes, whereas two genes, CHLI-I and CHLI-2, encode the two isoforms of CHLI.

关键词： synthesis of tetrapyrroles chlorophylls Arabidopsis

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The Quaternary Structure of NADPH Thioredoxin Reductase C Is Redox-Sensitive

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Molecular Plant 2009年第3期2卷 457-467页

作者： Juan Manuel Pérez-Ruiz Maricruz Gonzalez Maria Cristina Spinola Luisa Maria Sandalio Francisco Javier cejudo Instituto de Bioqulmica Vegetal y Fotoslntesis Universidad de Sevilla y CSIC Avda Américo Vespucio 49 41092-Sevilla Spain Present address: Plant Biology Laboratory The Salk Institute 10010 N. Torrey Pines Rd La Jolla CA 92037 USA Estacion Experimental del Zaidin CSIC C/Prof Albareda 1 18008-Granada Spain

NADPH thioredoxin reductase C （NTRC） is a chloroplast enzyme able to conjugate NADPH thioredoxin reductase （NTR） and thioredoxin （TRX） activities for the efficient reduction of 2-Cys peroxiredoxin （2-Cys PRX）. Because NADPH can be produced in chloroplasts during darkness, NTRC plays a key role for plant peroxide detoxification during the night. Here, it is shown that the quaternary structure of NTRC is highly dependent on its redox status. In vitro, most of the enzyme adopted an oligomeric state that disaggregated in dimers upon addition of NADPH, NADH, or DTT. Gel filtration and Western blot analysis of protein extracts from Arabidopsis chloroplast stroma showed that native NTRC forms aggregates, which are sensitive to NADPH and DTT, suggesting that the aggregation state might be a significant aspect of NTRC activity in vivo. Moreover, the enzyme is localized in clusters in Arabidopsis chloroplasts. NTRC triple and double mutants, A164G- V182E-R183F and A164G-R183F, replacing key residues of NADPH binding site, showed reduced activity but were still able to dimerize though with an increase in intermediary forms. Based on these results, we propose that the catalytically active form of NTRC is the dimer, which formation is induced by NADPH.

关键词： Abiotic/environmental stress oxidative and photo-oxidative stress photosynthesis Arabidopsis rice.

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On Boolean Lattices of Module Classes

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Algebra Colloquium 2018年第2期25卷 285-294页

作者： Alejandro Alvarado-Garcia Cesar cejudo-Castilla Hugo Alberto Rincon-Mejia Ivan Fernando Vilchis-Montalvo Manuel Gerardo Zorrilla-Noriega Facultad de Ciencias Universidad Nacional Autonoma de Mexico Circuito Exterior C.U. C.P. 04510 Ciudad de Mexico Mexico Facultad de Ciencias Fisico Matemdticas Benemerita Universidad Autonoma de Puebla Av. San Claudio y 18 Sur Col. San Manuel Ciudad Universitaria C.P. 72570 Puebla Mexico Facultad de Ciencias Universidad Nacional Autonoma de Mexico Circuito Exterior C.U. C.P. 04510 Ciudad de Mdxico Mdxico Facultad de Ciencias Ffsico Matematicas Benemerita Universidad Autonoma de Puebla Av. San Claudio y 18 Sur Coi. San Manuel Ciudad Universitaria C.P. 72570 Puebla Mexico

Some properties of and relations between several （big） lattices of module classes are used in this paper to obtain information about the ring over which modules are taken. The authors reach characterizations of triv... 详细信息

关键词： torsion theories hereditary pretorsion classes natural classes conaturalclasses boolean lattice

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Intravitreal dexamethasone implant in naive and previously treated patients with diabetic macular edema:a retrospective study

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International Journal of Ophthalmology(English edition) 2020年第10期13卷 1597-1605页

作者： Marta Medina-Baena Olga cejudo-Corbalán Juan Ignacio García-Pulido María Jesús Huertos-Carrillo Eloy Girela-López Hospital Universitario Puerto Real Puerto Real 11510CadizSpain University of Cordoba Cordoba 14004Spain

AIM:To assess the effect of the intravitreal dexamethasone implant(DEX)Ozurdex on the best corrected visual acuity(BCVA)and central retinal thickness(CRT)in patients with diabetic macular edema(DME).METHODS:Totally 43 eyes(24 naive and 19 previously treated)were included in the *** and single-center study involved patients with a clinical diagnosed of DME,who received treatment with DEX implant and had a follow-up of at least 12 *** endpoints included changes in BCVA and ***:At month 12,mean improvement in BCVA from baseline was 20.4±20.8 letters and 6.8±6.9 letters in naive and previously treated patients,respectively(P=0.0132).The naive patients achieved the BCVA improvement significantly faster(2.4±1.5 mo)than the previously treated ones(3.5±2.4 mo,P=0.0298;MannWhitney test).The proportion of eyes gaining≥15 letters was 54.2%and 21.1%in the non-previously treated and previously treated groups,respectively(P=0.0293).CRT was significantly reduced from 484.0±119.8 and 487.5±159.9μm to 272.0±39.2 and 233.5±65.7μm in the naive and previously treated patients,respectively;P<0.0001 each,*** presence of subretinal fluid was significantly associated with the proportion of patients achieving a BCVA improvement≥5 letters[HR(95%CI),1.23(1.04 to 1.45),P=0.0145];≥10 letters[HR(95%CI),1.75(1.10 to 2.77),P=0.0182];and≥15 letters[HR(95%CI),2.04(1.03 to 4.02),P=0.0407].Naive patients received less DEX implants throughout the study than the previously treated ones(1.8±0.6 vs 2.3±0.6,P=0.0172,respectively).Totally 9 patients(20.9%)have developed ocular hypertension,which was successfully controlled with topical hypotensive *** the 23 phakic eyes at baseline,5 eyes(21.7%)either had new onset lens opacity or progression of an existing opacity during the study *** of them(2 in the naive group and 2 in the previously treated one)required cataract surgery at months 4,6,6,and 6,***:The results obtained in this

关键词： diabetic macular edema dexamethasone implant Ozurdex visual acuity central retinal thickness naive patients

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Comparison between standard and wide-field autofluorescence in detection of retinal displacement after rhegmatogenous retinal detachment surgery

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Advances in Ophthalmology Practice and Research 2022年第3期2卷 32-37页

作者： Raquel Maroto cejudo Cristina Blanco Marchite Teresa Prieto Moran Sergio Copete Piqueras Retina Department Service of OphthalmologyAlbacete University ComplexAlbaceteSpain

Purpose To analyse the differences between 30°blue autofluorescence(BAF30),55°blue autofluorescence(BAF55)and 200°green Ultra-Wide Field autofluorescence(UWF200)imaging to detect retinal displacement(RD)after vitrectomy surgery for rhegmatogenous retinal detachment(RRD).Methods This cross-sectional study considers forty-nine consecutive patients who underwent RRD surgery in the time period 4–8 months previous to image *** exclusion criteria contemplate previous retinal pathology,under 18-year-olds and non-assessable images in any of the 3 *** images were analysed by two masked graders that assessed either the presence or absence of retinal displacement.A third observer reviewed the images that presented *** A total of forty-nine patients were analysed.7 eyes were excluded due to poor quality in either of the imaging *** final analysis included 42 eyes of forty-two patients with a mean age of 60.3±11.9 *** patients underwent a 3 port 23-gauge pars plana vitrectomy as the technique of *** grade of RD was detectable in 45.2% of *** was similar between BAF30 and UWF200(42.9% of eyes).BAF55 showed RD to a lesser extent(38.1%).Agreement index between BAF30 and BAF55 was 0.901,0.903 between BAF30 and UWF200 and 0.803 between BAF55 and *** agreement index between graders was 0.775 for BAF30,0.798 for BAF50 and 0.808 for UWF200 *** All imaging modalities were able to detect RD after vitrectomy for RRD,with no inferiority of BAF30 and BAF55 over UWF200.

关键词： Blue fundus autofluorescence Green fundus autofluorescence Rhegmatogenous retinal detachment Retinal displacement Retinal vessel printings

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