Bibliografías temáticas / HSFA2

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Literatura académica sobre el tema "HSFA2"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 1 de febrero de 2022

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Artículos de revistas sobre el tema "HSFA2"

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Scharf, Klaus-Dieter, Harald Heider, Ingo Höhfeld, Ruth Lyck, Enrico Schmidt, and Lutz Nover. "The Tomato Hsf System: HsfA2 Needs Interaction with HsfA1 for Efficient Nuclear Import and May Be Localized in Cytoplasmic Heat Stress Granules." Molecular and Cellular Biology 18, no. 4 (1998): 2240–51. http://dx.doi.org/10.1128/mcb.18.4.2240.

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ABSTRACT In heat-stressed (HS) tomato (Lycopersicon peruvianum) cell cultures, the constitutively expressed HS transcription factor HsfA1 is complemented by two HS-inducible forms, HsfA2 and HsfB1. Because of its stability, HsfA2 accumulates to fairly high levels in the course of a prolonged HS and recovery regimen. Using immunofluorescence and cell fractionation experiments, we identified three states of HsfA2: (i) a soluble, cytoplasmic form in preinduced cultures maintained at 25°C, (ii) a salt-resistant, nuclear form found in HS cells, and (iii) a stored form of HsfA2 in cytoplasmic HS gra
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Heerklotz, Dirk, Pascal Döring, Frank Bonzelius, Sybille Winkelhaus, and Lutz Nover. "The Balance of Nuclear Import and Export Determines the Intracellular Distribution and Function of Tomato Heat Stress Transcription Factor HsfA2." Molecular and Cellular Biology 21, no. 5 (2001): 1759–68. http://dx.doi.org/10.1128/mcb.21.5.1759-1768.2001.

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ABSTRACT Tomato heat stress transcription factor HsfA2 is a shuttling protein with dominant cytoplasmic localization as a result of a nuclear import combined with an efficient export. Besides the nuclear localization signal (NLS) adjacent to the oligomerization domain, a C-terminal leucine-rich motif functions as a nuclear export signal (NES). Mutant forms of HsfA2 with a defective or an absent NES are nuclear proteins. The same is true for the wild-type HsfA2 if coexpressed with HsfA1 or in the presence of export inhibitor leptomycin B (LMB). Fusion of the NES domain of HsfA2 to HsfB1, which
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Ren, Shixiong, Kaibiao Ma, Zhaogeng Lu, et al. "Transcriptomic and Metabolomic Analysis of the Heat-Stress Response of Populus tomentosa Carr." Forests 10, no. 5 (2019): 383. http://dx.doi.org/10.3390/f10050383.

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Plants have evolved mechanisms of stress tolerance responses to heat stress. However, little is known about metabolic responses to heat stress in trees. In this study, we exposed Populus tomentosa Carr. to control (25 °C) and heat stress (45 °C) treatments and analyzed the metabolic and transcriptomic effects. Heat stress increased the cellular concentration of H2O2 and the activities of antioxidant enzymes. The levels of proline, raffinose, and melibiose were increased by heat stress, whereas those of pyruvate, fumarate, and myo-inositol were decreased. The expression levels of most genes (PS
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Zupanska, Agata, Collin LeFrois, Robert Ferl, and Anna-Lisa Paul. "HSFA2 Functions in the Physiological Adaptation of Undifferentiated Plant Cells to Spaceflight." International Journal of Molecular Sciences 20, no. 2 (2019): 390. http://dx.doi.org/10.3390/ijms20020390.

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Heat Shock Factor A2 (HsfA2) is part of the Heat Shock Factor (HSF) network, and plays an essential role beyond heat shock in environmental stress responses and cellular homeostatic control. Arabidopsis thaliana cell cultures derived from wild type (WT) ecotype Col-0 and a knockout line deficient in the gene encoding HSFA2 (HSFA2 KO) were grown aboard the International Space Station (ISS) to ascertain whether the HSF network functions in the adaptation to the novel environment of spaceflight. Microarray gene expression data were analyzed using a two-part comparative approach. First, genes diff
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Oh, Hye-Sook, Ora Son, Jong-Yoon Chun, et al. "The Bradyrhizobium japonicum hsfA Gene Exhibits a Unique Developmental Expression Pattern in Cowpea Nodules." Molecular Plant-Microbe Interactions® 14, no. 11 (2001): 1286–92. http://dx.doi.org/10.1094/mpmi.2001.14.11.1286.

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The Bradyrhizobium japonicum host-specific fixation gene hsfA was identified as essential for nitrogen fixation on cowpea, but not required for nitrogen fixation on soybean or siratro. The DNA sequence of the hsfA promoter contains a consensus RpoN, -24/-12 binding site, suggesting the involvement of a regulatory protein that binds to an upstream activating sequence (UAS). To further explore the regulation of this interesting gene, serial deletions of the hsfA promoter were made and fused with the β-glucuronidase (GUS) gene. The HsfA3 deletion, containing 60 bp 5′ of the -24/-12 sequence, show
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Jacob, Pierre, Gwilherm Brisou, Marion Dalmais, et al. "The Seed Development Factors TT2 and MYB5 Regulate Heat Stress Response in Arabidopsis." Genes 12, no. 5 (2021): 746. http://dx.doi.org/10.3390/genes12050746.

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HEAT SHOCK FACTOR A2 (HSFA2) is a regulator of multiple environmental stress responses required for stress acclimation. We analyzed HSFA2 co-regulated genes and identified 43 genes strongly co-regulated with HSFA2 during multiple stresses. Motif enrichment analysis revealed an over-representation of the site II element (SIIE) in the promoters of these genes. In a yeast 1-hybrid screen with the SIIE, we identified the closely related R2R3-MYB transcription factors TT2 and MYB5. We found overexpression of MYB5 or TT2 rendered plants heat stress tolerant. In contrast, tt2, myb5, and tt2/myb5 loss
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Enomoto, Takuo, Mutsutomo Tokizawa, Hiroki Ito, et al. "STOP1 regulates the expression of HsfA2 and GDHs that are critical for low-oxygen tolerance in Arabidopsis." Journal of Experimental Botany 70, no. 12 (2019): 3297–311. http://dx.doi.org/10.1093/jxb/erz124.

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Abstract The SENSITIVE TO PROTON RHIZOTOXICITY 1 (STOP1) transcription factor regulates gene expression associated with multiple stress tolerances in plant roots. In this study, we investigated the mechanism responsible for the sensitivity of the stop1 mutant to low-oxygen stress in Arabidopsis. Transcriptomic analyses revealed that two genes involved in low-oxygen tolerance, namely GLUTAMATE DEHYDROGENASE 1 (GDH1) and GDH2, showed lower expression levels in the stop1 mutant than in the wild-type. Sensitivity of the gdh1gdh2 double-mutant to low-oxygen conditions was partly attributable to the
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Singh, Garima, Neelam K. Sarkar, and Anil Grover. "Tango between Ethylene and HSFA2 Settles Heat Tolerance." Trends in Plant Science 26, no. 5 (2021): 429–32. http://dx.doi.org/10.1016/j.tplants.2021.03.003.

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Doring, Pascal, Eckardt Treuter, Catherine Kistner, Ruth Lyck, Alexander Chen, and Lutz Nover. "The Role of AHA Motifs in the Activator Function of Tomato Heat Stress Transcription Factors HsfA1 and HsfA2." Plant Cell 12, no. 2 (2000): 265. http://dx.doi.org/10.2307/3870927.

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Döring, Pascal, Eckardt Treuter, Catherine Kistner, Ruth Lyck, Alexander Chen, and Lutz Nover. "The Role of AHA Motifs in the Activator Function of Tomato Heat Stress Transcription Factors HsfA1 and HsfA2." Plant Cell 12, no. 2 (2000): 265–78. http://dx.doi.org/10.1105/tpc.12.2.265.

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Tesis sobre el tema "HSFA2"

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Jacob, Pierre. "Unraveling new components of abiotic stress signaling pathways through screening of a biosensor mutant population." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLE042.

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Les stress ont un impact majeur sur l'agriculture. Les études réalisées jusqu'à présent portent majoritairement sur des stress simples, appliqués indépendamment dans des conditions de culture idéales. Cependant, les combinaisons de stress sont la norme dans les champs et la réponse aux combinaisons de stress ne peut être extrapolée à partir de l'addition des réponses aux stress simples. Une analyse bioinformatique de banques de données de transcriptomique a permis d’identifier un gène (HSFA2) répondant a de multiple stress, isolés ou combinés. La présente thèse a pour but de découvrir les méca
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Hu, Yangjie [Verfasser], Enrico [Gutachter] Schleiff, and Michaela [Gutachter] Müller-McNicoll. "Alternative splicing of HsfA2 mediates thermotolerance in tomato species / Yangjie Hu ; Gutachter: Enrico Schleiff, Michaela Müller-McNicoll." Frankfurt am Main : Universitätsbibliothek Johann Christian Senckenberg, 2017. http://d-nb.info/1138705322/34.

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Pillet, Jérémy. "Impact du microclimat sur le métabolisme de la baie de raisin." Thesis, Bordeaux 2, 2011. http://www.theses.fr/2011BOR21863/document.

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Le réchauffement climatique planétaire annoncé ne sera pas sans conséquence sur le métabolisme de la baie et en particulier sur la teneur en composés phénoliques. Les objectifs de cette thèse visent à mieux comprendre les processus de régulation associant le microclimat des baies et la synthèse des composés phénoliques. Par des approches moléculaires et biochimiques, ce travail a permis de mieux décrire les réponses spécifiques des baies de raisin (cultivar Cabernet-Sauvignon) aux facteurs rayonnement et température.L'analyse du transcriptome des baies exposées soit à un stress thermique soit
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Lakhdari, Nadjem. "Programmation néonatale de l’infertilité mâle : rôle de la dérégulation de l’expression des microARNs dans l’apoptose des cellules germinales." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA11T096/document.

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Un certain nombre d’études épidémiologiques font état d’une augmentation de l’infertilité masculine durant ces cinquante dernières années, en particulier dans les pays industrialisés, mais aussi d’une augmentation des malformations de l’appareil reproducteur masculin telles que la cryptorchidie (absence de migration des testicules dans les bourses) ou l’hypospadias (malformation du pénis), et des cancers testiculaires. Des données expérimentales suggèrent que ces anomalies du tractus génital mâle sont liées. Ces symptômes forment le syndrome de dysgénésie testiculaire. Les causes d’apparition
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Drissi, Ichrak. "Perturbation par l'éthanol de la plasticité synaptique reliée aux sous-unités GluN2A et GluN2B dans l'hippocampe chez le rongeur : implication des HDAC2 et HSF2." Thesis, Amiens, 2018. http://www.theses.fr/2018AMIE0049/document.

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L'alcool (EtOH) est une des substances d'abus les plus consommées en France chez les adolescents comme chez les adultes. La consommation d'EtOH induit des déficits mnésiques en perturbant les phénomènes de plasticité synaptique de type potentialisation à long terme (PLT) et dépression à long terme (DLT) dépendants du récepteur NMDA (PLTNMDA et DLTNMDA), et qui constituent la base cellulaire des apprentissages et de la mémoire, notamment au niveau de l'hippocampe. La composition en sous-unités GluN2A et GluN2B du récepteur NMDA peut influencer l'induction de ces deux formes de plasticité synapt
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Manuel, Martine. "Recherche des cibles du facteur HSF2 chez la souris." Paris 7, 2002. http://www.theses.fr/2002PA077115.

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Chang, Yunhua. "Implication du facteur de transcription de choc thermique HSF2 dans la méiose et le développement du cerveau : étude de l'inactivation du gène hsf2 chez la souris." Paris 6, 2004. http://www.theses.fr/2004PA066047.

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Murphy, Lynea Alene. "IMPLICATIONS FOR THE HSF2/PRC1 INTERACTION AND REGULATION OF CONDENSIN BY PHOSPHORYLATION DURING MITOSIS." UKnowledge, 2008. http://uknowledge.uky.edu/gradschool_diss/645.

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At the beginning of mitosis, chromosomes are condensed and segregated to facilitate correct alignment later in cytokinesis. Condensin is the pentameric enzyme responsible for this DNA compaction and is composed of two structural maintenance of chromosomes (SMC) subunits and three non-SMC subunits. Condensin mutations generate chromosomal abnormalities due to improper segregation, leading to genome instability and eventual malignant transformation of the cell. Cdc2 phosphorylation of the non-SMC subunits, CAP-G, CAP-D2, and CAP-H, has been demonstrated to be important for condensin supercoiling
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Skaggs, Hollie Suzanne. "IMPLICATIONS FOR THE INTERACTION BETWEEN THE HEAT SHOCK TRANSCRIPTION FACTORS AND THE TRANSLOCATED PROMOTER REGION PROTEIN." UKnowledge, 2007. http://uknowledge.uky.edu/gradschool_diss/503.

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The heat-shock response is one of the many complex physiological systems that organisms have developed in order to protect their cells against stress. This response is initiated by the binding of heat shock factor 1 (HSF1) to the promoters of genes containing heat-shock elements (HSEs,) which results in the expression of several proteins, among them the proteo-protective inducible heat-shock protein (hsp70i). Due to HSF1s critical role in this process, an active area of research is trying to understand of how HSF1 executes its function. Considering the rapidity with which the field of cell bio
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Zinsmeister, Julia. "Étude fonctionnelle de trois facteurs de transcription intervenant dans la regulation de la qualité germinative des graines chez les légumineuses : ABI4, ABI5 et HSFA9." Thesis, Rennes, Agrocampus Ouest, 2016. http://www.theses.fr/2016NSARI078/document.

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La phase de maturation des graines est caractérisée par l’ac-quisition successive de composantes qui constituent la qua-lité physiologique d’un lot de semences, à savoir la toléranceà la dessiccation (capacité à survivre au retrait total de l’eaucellulaire), la longévité (capacité de survivre à l'état sec pen-dant le stockage), la dormance ainsi que la vigueur germina-tive (capacité à germer de façon rapide et homogène quelquessoient les conditions de l’environnement). La production desemences à haute qualité germinative représente un enjeumajeur pour les semenciers car elle constitue un levie
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Capítulos de libros sobre el tema "HSFA2"

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Zhao, Lingli, Huitang Pan, Ming Sun, and Qixiang Zhang. "Molecular Cloning of Arabidopsis thaliana HsfA2 Gene and Agrobacterium-Mediated Genetic Transformation of Chrysanthemum morifolium Ramat." In Advances in Intelligent and Soft Computing. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27537-1_97.

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Nixon, Brett, Elizabeth G. Bromfield, Jinwei Cui, and Geoffry N. De Iuliis. "Heat Shock Protein A2 (HSPA2): Regulatory Roles in Germ Cell Development and Sperm Function." In The Role of Heat Shock Proteins in Reproductive System Development and Function. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51409-3_4.

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Korba, Abdelaziz Amara, Mehdi Nafaa, and Salim Ghanemi. "Hybrid Intrusion Detection Framework for Ad Hoc Networks." In Securing the Internet of Things. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-9866-4.ch060.

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In this paper, a cluster-based hybrid security framework called HSFA for ad hoc networks is proposed and evaluated. The proposed security framework combines both specification and anomaly detection techniques to efficiently detect and prevent wide range of routing attacks. In the proposed hierarchical architecture, cluster nodes run a host specification-based intrusion detection system to detect specification violations attacks such as fabrication, replay, etc. While the cluster heads run an anomaly-based intrusion detection system to detect wormhole and rushing attacks. The proposed specification-based detection approach relies on a set of specifications automatically generated, while anomaly-detection uses statistical techniques. The proposed security framework provides an adaptive response against attacks to prevent damage to the network. The security framework is evaluated by simulation in presence of malicious nodes that can launch different attacks. Simulation results show that the proposed hybrid security framework performs significantly better than other existing mechanisms.
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Actas de conferencias sobre el tema "HSFA2"

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Niu, Junkun. "IDDF2018-ABS-0208 Faecal HSF2 concentration maybe used as an evaluation index for predicting the mucosal healing of uc." In International Digestive Disease Forum (IDDF) 2018, Hong Kong, 9–10 June 2018. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2018. http://dx.doi.org/10.1136/gutjnl-2018-iddfabstracts.29.

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Niu, JunKun. "IDDF2019-ABS-0294 HSF2 promote the mucosal repair in ulcerative colitis by inhibiting pro-inflammatory cytokine and promoting TGF-β Expression". У International Digestive Disease Forum (IDDF) 2019, Hong Kong, 8–9 June 2019. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2019. http://dx.doi.org/10.1136/gutjnl-2019-iddfabstracts.64.

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