Relevant bibliographies by topics / Stressful conditions

Academic literature on the topic 'Stressful conditions'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Stressful conditions"

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Lowe, Graham S., and Herbert C. Northcott. "Stressful Working Conditions and Union Dissatisfaction." Articles 50, no. 2 (April 12, 2005): 420–42. http://dx.doi.org/10.7202/051018ar.

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This paper examines the relationship between stressful working conditions, social support at work, employee distress, and union members' (dis)satisfaction with their union. It might be assumed that under stressful working conditions, unionized workers would turn to their union to seek better working conditions and would have a positive orientation toward their union. However, it is also possible that stressful working conditions and distressed, alienated employees will become dissatisfied not only with their job but also with their union. The data for this study corne from a survey of unionized postal workers employed by Canada Post Corporation in Edmonton in 1983.
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Zemirli, Naima, Etienne Morel, and Diana Molino. "Mitochondrial Dynamics in Basal and Stressful Conditions." International Journal of Molecular Sciences 19, no. 2 (February 13, 2018): 564. http://dx.doi.org/10.3390/ijms19020564.

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Cheng, Louis, and Jay White. "Measuring Pricing Inefficiencies Under Stressful Market Conditions." Journal of Business Finance Accounting 30, no. 3-4 (April 2003): 383–411. http://dx.doi.org/10.1111/1468-5957.t01-1-00002.

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Lee, T. E., and H. S. Lips. "Changes in Nitrogen Metabolism under Stressful Conditions." Biochemical Society Transactions 28, no. 5 (October 1, 2000): A328. http://dx.doi.org/10.1042/bst028a328a.

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Wong, W. "How to Stop Responding to Stressful Conditions." Science Signaling 6, no. 289 (August 20, 2013): ec198-ec198. http://dx.doi.org/10.1126/scisignal.2004645.

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Kivimaki, M., M. Hotopf, and M. Henderson. "Do stressful working conditions cause psychiatric disorders?" Occupational Medicine 60, no. 2 (February 15, 2010): 86–87. http://dx.doi.org/10.1093/occmed/kqp183.

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Duangurai, Taksaon, Nitaya Indrawattana, and Pornpan Pumirat. "Burkholderia pseudomalleiAdaptation for Survival in Stressful Conditions." BioMed Research International 2018 (May 27, 2018): 1–11. http://dx.doi.org/10.1155/2018/3039106.

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Burkholderia pseudomalleiis a Gram-negative bacterium that causes melioidosis, which can be fatal in humans. Melioidosis is prevalent in the tropical regions of Southeast Asia and Northern Australia. Ecological data have shown that this bacterium can survive as a free-living organism in environmental niches, such as soil and water, as well as a parasite living in host organisms, such as ameba, plants, fungi, and animals. This review provides an overview of the survival and adaptation ofB. pseudomalleito stressful conditions induced by hostile environmental factors, such as salinity, oxidation, and iron levels. The adaptation ofB. pseudomalleiin host cells is also reviewed. The adaptive survival mechanisms of this pathogen mainly involve modulation of gene and protein expression, which could cause alterations in the bacteria’s cell membrane, metabolism, and virulence. Understanding the adaptations of this organism to environmental factors provides important insights into the survival and pathogenesis ofB. pseudomallei, which may lead to the development of novel strategies for the control, prevention, and treatment of melioidosis in the future.
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Gustavsson, Maria, and Daniel Lundqvist. "Learning conditions supporting the management of stressful work." Journal of Workplace Learning 33, no. 2 (January 28, 2021): 81–94. http://dx.doi.org/10.1108/jwl-09-2019-0116.

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Purpose From a workplace learning perspective, the purpose of this paper is to explore the relationship between conditions for learning and stressful work and, to analyse the learning conditions that support the management of stressful work. The model of effort-reward imbalance (ERI) is adopted as an indicator of stressful work by measuring the relationship between Effort and Rewards in work. Design/methodology/approach The material consists of questionnaire data from 4,420 employees in ten public and private organisations in Sweden. Findings The results provide evidence that suggests that some workplace conditions known to enable learning also indicates a comparatively better chance for employees to manage stressful work. An innovative practice reduces the feelings of effort, whereas managerial support and knowledge sharing serve as rewards contributing to appreciation, while competence and career development create rewards in the form of opportunities for progression. Practical implications Workplaces in which there are enabling learning conditions can provide employees with ample resources for managing stressful work. Originality/value This paper explores the complex relationship between workplace learning conditions and the ERI model seen from a workplace learning perspective which has received relatively sparse attention in the literature.
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Anderson, Paul, and Nancy Kedersha. "Stressful initiations." Journal of Cell Science 115, no. 16 (August 15, 2002): 3227–34. http://dx.doi.org/10.1242/jcs.115.16.3227.

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Stress granules (SGs) are phase-dense particles that appear in the cytoplasm of eukaryotic cells that have been exposed to environmental stress(e.g. heat, oxidative conditions, hyperosmolarity and UV irradiation). SG assembly is a consequence of abortive translational initiation: SGs appear when translation is initiated in the absence of eIF2-GTP-tRNAiMet, the ternary complex that normally loads tRNAiMet onto the small ribosomal subunit. Stress-induced depletion of eIF2-GTP-tRNAiMet allows the related RNA-binding proteins TIA-1 and TIAR to promote the assembly of eIF2-eIF5-deficient preinitiation complexes, the core constituents of SGs. The mRNP components that make up the SG are in a dynamic equilibrium with polysomes. As such, the SG appears to constitute a metabolic domain through which mRNPs are continually routed and subjected to triage — they are first monitored for integrity and composition, and then sorted for productive translational initiation or targeted degradation.
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Matarredona, Laura, Mónica Camacho, Basilio Zafrilla, Gloria Bravo-Barrales, Julia Esclapez, and María-José Bonete. "The Survival of Haloferax mediterranei under Stressful Conditions." Microorganisms 9, no. 2 (February 8, 2021): 336. http://dx.doi.org/10.3390/microorganisms9020336.

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Haloarchaea can survive and thrive under exposure to a wide range of extreme environmental factors, which represents a potential interest to biotechnology. Growth responses to different stressful conditions were examined in the haloarchaeon Haloferax mediterranei R4. It has been demonstrated that this halophilic archaeon is able to grow between 10 and 32.5% (w/v) of sea water, at 32–52 °C, although it is expected to grow in temperatures lower than 32 °C, and between 5.75 and 8.75 of pH. Moreover, it can also grow under high metal concentrations (nickel, lithium, cobalt, arsenic), which are toxic to most living beings, making it a promising candidate for future biotechnological purposes and industrial applications. Inductively Coupled Plasma Mass Spectrometry (ICP-MS) analysis quantified the intracellular ion concentrations of these four metals in Hfx. mediterranei, concluding that this haloarchaeon can accumulate Li+, Co2+, As5+, and Ni2+ within the cell. This paper is the first report on Hfx. mediterranei in which multiple stress conditions have been studied to explore the mechanism of stress resistance. It constitutes the most detailed study in Haloarchaea, and, as a consequence, new biotechnological and industrial applications have emerged.
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Dissertations / Theses on the topic "Stressful conditions"

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Khatchadourian, Armen. "Lipid droplets under stressful conditions." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=116901.

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Lipid droplets (LDs) are phylogenetically conserved and ubiquitous organelles with many cellular functions. In the last two decades, our understanding of LD biology and of their roles in physiological processes has increased dramatically. In addition, increasing evidence suggests that LDs are highly involved in inflammatory processes, and in metabolic disorders such as type 2 diabetes mellitus (T2DM). Despite such advancement, many aspects of LD biology and of their roles in health and disease remain unknown.The core of LDs is highly enriched with neutral lipids and these can be mobilized to provide metabolic energy. The phospholipid monolayer surrounding the LD core is associated with a wide variety of proteins, including structural and signaling proteins, as well as metabolic enzymes. While LDs may be induced by physiological stimuli such as dietary fatty acids, they can also be formed under stressful conditions, in the absence of such fatty acids. However, exactly how cellular stress leads to LD accumulation remains unclear. Our main objective is to understand the regulation of LD formation under stressful conditions, specifically oxidative stress, inflammation, and metabolic stress. We first investigated LDs in cells exposed to environmental stressors, namely cytotoxic metallic nanoparticles and reactive oxygen species. LD formation and expression of perilipin-2, a key structural LD protein, were highly increased in rodent cells exposed to these stress agents. Interestingly, supplementation with antioxidant N-acetyl cysteine or pharmacological inhibition of p38 mitogen activated protein kinase (MAPK) reduced stress-induced LD accumulation, suggesting that oxidative stress and p38 MAPK activation play a role in the induction of LD formation. Inflammatory leukocytes and macrophages contain a large number of LDs. While this phenomenon has been widely investigated in peripheral immune cells, its explanation remains elusive in immune cells of the central nervous system. We therefore investigated LD dynamics and regulation in microglia, the resident immune cells in the brain. We found that stimulation of microglia with toll-like receptor 4 (TLR4) agonist, lipopolysaccharides (LPS), increased LD formation and perilipin-2 expression in an Akt and p38 MAPK-dependent manner. Interestingly, LPS-induced LDs extensively colocalized with cytosolic phospholipase A2-α (cPLA2-α), a key enzyme involved in the synthesis of eicosanoids, which are inflammatory lipid mediators. Collectively, these findings imply that LD formation may contribute to increased eicosanoid synthesis in activated microglia and could be microglial biomarkers of inflammation in the central nervous system. To gain a better insight into the role of LDs in human pathology, we sought to examine alterations in LD metabolism in pancreatic tissue obtained from T2DM and obese individuals. Immunohistochemical studies revealed increased islet and extra-islet perilipin-2 expression in tissues from lean or obese T2DM donors, but not in non-T2DM obese donors, suggesting that the diabetic status, but not the obesity status, is a requirement for increasing perilipin-2 expression and LD formation. Gene expression analysis by RT-qPCR confirmed the increase in perilipin-2 expression and revealed significant alterations in several genes related to islet function, metabolism and antioxidant defense. These alterations seem to be consistently associated with obesity and T2DM and imply an adaptive and compensatory response to insulin resistance and metabolic stress. In summary, our studies show that LDs are an integral part of the adaptive cellular response to oxidative, inflammatory and metabolic stress. Perhaps, the most important challenge in LD research in the upcoming decade will be to determine how the subcellular lipid and protein composition of this organelle affects its function in different cells.
Les gouttelettes lipidiques (GL) sont des organites phylogénétiquement conservées et impliquées dans plusieurs fonctions cellulaires. Durant les deux dernières décennies, notre compréhension des rôles biologiques et physiologiques des GL a augmenté de manière draconienne. Plusieurs observations suggèrent fortement que les GL jouent un rôle important dans l'inflammation, ainsi que dans les désordres métaboliques tels que le diabète de type 2 (DT2). Malgré cette avancée, plusieurs aspects de la biologie des GL et de leurs rôles dans des maladies demeurent méconnus.Le centre des GL est riche en lipides neutres qui peuvent se mobiliser et servir comme source d'énergie. La couche phospholipidique entourant le centre de la GL est associée à plusieurs protéines et enzymes métaboliques. Bien que les GL puissent être induites par des acides gras, elles peuvent aussi l'être dans des conditions de stress. Par contre, les mécanismes de l'accumulation de GL par des conditions de stress ne sont pas encore bien compris. Notre objectif principal est de comprendre la régulation de la formation de GL par le stress oxydatif, l'inflammation et le stress métabolique. Premièrement, nous avons investigué les GL dans des cellules exposées à des stresseurs tels que des nanocrystaux métalliques et des dérivés réactifs d'oxygène. La formation de GL et l'expression de perilipin-2, qui est une protéine structurelle des GL, ont tous deux augmenté dans les cellules stressées. De plus, une supplémentation en antioxydant (n-acétylcystéine) ou un traitement avec un inhibiteur de p38 MAPK a réduit l'accumulation de GL causée par le stress. Ces observations suggèrent que le stress oxydatif et p38 MAPK jouent un rôle dans l'accumulation de GL dans des cellules stressées. Il est bien connu que les leucocytes et macrophages qui sont engagés dans l'inflammation contiennent une grande quantité de GL. Même si ce phénomène a bien été exploré dans les cellules immunitaires périphériques, il reste inexploré dans le système nerveux central (SNC). Ce faisant, nous avons investigué la dynamique et la régulation des GL dans les microglies, les cellules résidentes immunitaires dans le cerveau. Nous avons trouvé que dans les microglies stimulées avec les lipopolysaccharides (LPS), les GL et l'expression de perilipin-2 ont augmenté d'une manière dépendante de l'activation de l'Akt et p38 MAPK. Dans ces cellules activées, la phospholipase cytosolique A2-α (PLC A2-α), une enzyme fonctionnant dans la synthèse d'éicosanoides, des médiateurs lipidiques inflammatoires, colocalisait avec les GL. Ensemble, ces résultats indiquent que la formation de GL pourrait contribuer à la synthèse d'éicosanoides dans les microglies activées et servir de biomarqueurs d'inflammation dans le SNC.Pour mieux comprendre le rôle des GL dans la pathologie humaine, nous les avons examinées dans des tissues pancréatiques provenant de patients obèses ou diabétiques T2. Nos études immunohistochimiques ont révélé une augmentation de perilipin-2 dans les îlots de Langerhans chez les patients diabétiques obèses ou maigres, mais pas dans ceux de patients non-diabétiques. Ceci suggère que le DT2, mais non l'obésité, est requis pour une augmentation de perilipin-2 dans le pancréas. L'analyse d'expression de gènes par RT-PCR a confirmé l'augmentation de perilipin-2 observé antérieurement dans les îlots et a également révélé des altérations dans des gènes reliés aux fonctions des îlots, au métabolisme, et aux défenses anti-oxydantes. Ces changements, qui sont souvent associés à l'obésité et au DT2, constituent un mécanisme d'adaptation à la résistance à l'insuline et au stress métabolique.Pour résumer, nos études démontrent que l'accumulation de GL fait partie intégrante de l'adaptation des cellules au stress. Durant la prochaine décennie, le plus grand obstacle dans la recherche sur les GL sera de déterminer comment la composition lipidique ou protéinique de ces organites affecte leurs fonctions biologiques.
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Brown, Tiffany Leigh. "Stressful life events and coping in college students." CSUSB ScholarWorks, 1994. https://scholarworks.lib.csusb.edu/etd-project/522.

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Barnes, Ryan D., and Buck A. Bradley. "HELP: Handheld Emergency Logistics Program for generating structured requests for resources in stressful conditions." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/43872.

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The speed and efficacy with which front-line warfighters in stressful conditions can submit resource requests, such as a casualty evacuation, could mean the difference between life and death. Traditional methods to call for resources require training, are error-prone and can be sluggish. The Handheld Emergency Logistics Program (HELP) was developed by the authors of this thesis to assist both trained and untrained persons in requesting resources from supporting agencies. HELP was developed to prove the concept that off-the-shelf mobile technology can significantly improve the speed and efficacy of resource requests. This thesis aims to allow HELP to exploit built-in sensors in modern commercial off-the-shelf handheld smart devices and their computation and communication capability to reduce the chance of error, reduce the need to pull information from memory, reduce manual data entry, and provide multiple redundant modalities for performing the same action. Our findings indicate that with the assistance of HELP, users submitting resource requests committed half as many errors and completed the request in half the amount of time as compared to a control group using traditional methods. We recommend that the concept of using smart devices to call for resources be further developed into a program of record.
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Aziz, Izaddin Ahmad. "Individual difference predictors of well-being among displaced persons who live under stressful conditions." Thesis, University of Leicester, 2017. http://hdl.handle.net/2381/40398.

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Background: The common concern surrounding the poor level of displaced life is that it might cause harmful psychological conditions. Another concern of displacement is the impact of conflict and the ability to survive in adverse situations. The reasons for conducting this thesis were developed through the literature review, and noticing a lack of studies that assess psychological issues such as well-being, resilience, prejudice and forgiveness among Syrian refugees and Iraqi displaced persons comprehensively. Research aims: In particular, the studies address three issues that are fundamental to understanding how the thesis is structured. The first issue is essential in examining how war has affected individuals’ well-being in short and long term of life engagement of the refugees. The second issue investigates the impact of the displacement situation on prejudices and the possibility of forgiveness after conflict and violence between groups of people. The final issue involves identifying the factors that might help individuals to survive and face any potentially harmful situation. Methods: The overall research sample includes 1,256 individuals of both genders. For collecting the data, self-report questionnaires and objective measures were used. Results: The results show that the research samples indicated poor levels of quality of life, well-being, forgiveness and resilience. Importantly, these findings reveal the significant role played by positive relation domains of psychological well-being in improving resilience and forgiveness. The research has also has shown that the psychological health domain of quality of life recorded the highest significant associations with resilience and psychological well-being. To Sum up, this thesis illustrates the importance of positive social relations, lower prejudice and greater resilience in predicting mental health states.
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Kelly, Charlene N. "The diversity of arbuscular mycorrhizal fungi functional and ecological responses to stressful soil conditions /." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3374.

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Thesis (M.S.)--West Virginia University, 2004.
Title from document title page. Document formatted into pages; contains vii, 57 p. : ill. Vita. Includes abstract. Includes bibliographical references.
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Jaramillo, Torres Hugo Alexander. "Intestinal health and microbiota in salmonids : the impact of probiotics under potentially stressful conditions." Thesis, University of Plymouth, 2017. http://hdl.handle.net/10026.1/9705.

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The intestine and associated bacterial microbiota have a central role the physiology and homoeostasis of the host. The understanding of how farming conditions affect the intestine and associated microbiota of fish is the high importance to counteract the potential threats to health and welfare. Thus, this thesis aims to understand the role of stressful husbandry conditions on the intestine and associated microbiota of rainbow trout and Atlantic salmon. Within this context, the role of Pediococcus acidilactici as health promoter was also investigated Chapter 3 investigated the replacement of fishmeal by different plant protein ingredients in rainbow trout. The results of this chapter revealed that the effect of P. acidilactici on the microbiota of distal intestine in rainbow trout was dependent on the ingredients of the diet. The results also showed that the FM substitution induced major changes in the intestinal microbiota. Moreover, the modulation induced by plant-based diets on the microbiota varied according to the ingredients used. Chapter 4 studied the effect of dietary oxytetracycline in the distal intestinal microbiota of rainbow trout and the role of P. acidilactici to ameliorate the impact of antibiotic therapy. Experimental groups fed the diets with oxytetracycline had substantial changes in the distal intestinal microbiota including a decrease in the bacterial diversity. P. acidilactici did not ameliorate the effect of antibiotic therapy in the intestinal microbiota. Chapter 5 used Atlantic salmon during smoltification to study the changes in the microbiota of distal intestine and the role of P. acidilactici to promote intestinal health. The results showed that bacterial communities in the mucosa differed from the digesta. Seawater transfer and P. acidilactici had significant changes in the intestinal microbiota of both mucosa and digesta. However, the modulatory effect of both factors evaluated was larger in the mucosa-associated microbiota than in the digesta-associated microbiota. Furthermore, P. acidilactici induced a significant increase in antiviral-related genes. Chapter 6 investigated the replacement of fish oil by rapeseed oil alone or combined with P. acidilactici on the intestinal health and microbiota of two intestinal regions in Atlantic salmon. Replacement of fish oil by rapeseed oil alone or in combination with P. acidilactici supplementation did not induce major changes in the intestinal health and microbiota. The bacterial communities found were significantly different between the pyloric caeca and mid-intestine. In conclusion, this thesis contributes to new knowledge regarding the effect of dietary supplementation of P. acidilactici and the impact of different potential challenging factors in the health and intestinal microbiota of farmed salmonid species.
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Samuels, Veneshley. "Investigation of mycobacterial cell wall genes and their requirement for survival in immune related stressful conditions." Master's thesis, Faculty of Health Sciences, 2020. http://hdl.handle.net/11427/32963.

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Tuberculosis (TB) disease, caused by the pathogen Mycobacterium tuberculosis (Mtb), remains a major global health problem claiming 1.5-2 million lives annually. One of the major factors contributing towards Mtb's success as a pathogen is its unique cell wall and its ability to counteract various arms of the host's immune response. Understanding these survival mechanisms will help us develop new therapeutic interventions that can enhance the capacity of the immune system to kill the pathogen. A recent genome scale study profiled a list of candidate genes that are predicted to be essential for Mtb survival of host mediated responses. One candidate was ftsEX, a protein complex comprised of an ATP binding domain, FtsE, and a transmembrane domain, FtsX. FtsEX functions through interaction with a periplasmic hydrolase, RipC. FtsEX homologs in other bacteria have been linked to a key role in regulation of PG hydrolysis during elongation and division. Using M. smegmatis as a model, we hypothesised that FtsEX and RipC are required in the regulation of PG hydrolysis during normal cell wall elongation and division under stressful conditions in vitro. Antibiotic sensitivity was confirmed using Alamar blue MIC determination assays, which showed that ftsEX and ripC had increased sensitivity to chloramphenicol and not to rifampicin, isoniazid and ethambutol. Our growth curve analysis showed that ftsEX and ripC are not essential for survival in normal growth conditions. However, ftsEX and ripC are conditionally essential for M. smegmatis in low salt media. Growth defects in this condition were characterized by short and bulgy cells, as well as elongated filamentous cells with visible chaining. Major morphological changes were seen under nitrosative stress. A higher proportion of cells struggled to divide normally and formed chains. Lateral branching was also observed in ΔftsE, ΔftsX and ΔftsEX but not in ΔripC. The protein complex was also required for survival in media containing rifampicin. Treatment with the drug exacerbated growth defects of all the mutants, which were much shorter than WT cells, indicating impairment in the elongation process. Collectively, mutants are much shorter in length with an exception of a few extremely lengthy cells, suggesting that ftsEX and ripC are required for both normal cell elongation and division and ultimately for survival in stressful conditions.
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Karlsson, Krister. "Substance P Endopeptidase : Purification and Characterizataion of Enzyme Activity and Evaluation of its Function during Stressful Condition." Doctoral thesis, Uppsala University, Department of Neuroscience, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4130.

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The purification and biochemical characterization of the substance P (SP) hydrolyzing enzyme, substance P endopeptidase (SPE), have been carried out; with subsequent orientation in neurobiological fundamental processes involved in opioid dependence, withdrawal, and heat-stress.

SPE was purified from rat spinal cord, human spinal cord and cerebrospinal fluid (CSF), rat ventral tegemental area (VTA), and rat hippocampus. The enzyme activity was found to release the biologically active fragments SP(1-7) and SP(1-8) as major products. The purified enzymes were characterized with regard to their biochemical and kinetic properties. The typical SPE is neither inhibited by phosphoramidon nor captopril nor phenylmethanesulfonylflourid (PMSF). In comparison to other known proteases SPE differed in characteristics regarding substrate specificity, inhibition-profile, cleavage pattern, and other kinetic parameters. The technically very delicate approach of micro purification of SPE from the rat ventral tegemental area (VTA) (this is a very small tissue), turned out to be possible with the ÄKTA™-purifier system. Studies revealed a crucial role of SPE in a series of clinically important neuropathological conditions, such as opioid tolerance, and withdrawal (SPE, increased); and heat-stress (SPE, increased). These findings emerged from assessment of enzyme activity in hypothalamus, nucleus accumbens (NAc) periaqueductal gray (PAG), pituitary, striatum, substantia nigra (SN), VTA, spinal cord. Viewing the role of SPE in morphine tolerance, it was possible to note regional differences with a decrease in PAG, and striatum, whereas an increase was seen in SN, and VTA. After heat-stress treatment, SPE was raised in several regions (cerebral cortex, hippocampus, diencephalon, cerebellum, spinal cord), and the most precise observation of this was located to the hippocampus structure.

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Karlsson, Krister. "Substance P endopeptidase : purification and characterization of enzyme activity and evaluation of its function during stressful condition /." Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4130.

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Klima, Kerry Lee Belvill. "Hidden, Supported, and Stressful: A Phenomenological Study of Midlevel Student Affairs Professionals' Entry-Level Experiences with a Mental Health Condition." Bowling Green State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1522882922205522.

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Books on the topic "Stressful conditions"

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Kokubun, Makie, and Shuichi Asanuma, eds. Crop Production under Stressful Conditions. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3.

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Lowe, Graham S. Stressful working conditions and union dissatisfaction. Kingston, Ont: Industrial Relations centre, Queen's University, 1993.

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Rose, Richard. Getting by without government: Everyday life in a stressful society. Glasgow: Centre for the Study of Public Policy, University of Strathclyde, 1994.

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Kinsey, B. H. The socioeconomics of nutrition under stressful conditions: A study of resettlement and drought in Zimbabwe. [Harare]: Centre for Applied Social Sciences, University of Zimbabwe, 1986.

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YEngashyev, Syergyey, Tamara Okolelova, Ekaterina Engasheva, Irina Lesnichenko, Salman Salgereev, Ol'ga Dorogova, Ivan Kochish, Oksana Kochish, Aleksandr Struk, and Evgeniya Struk. The methodology recommendations on the use of drugs that stimulate the productivity and preservation of poultry, and improve product quality. ru: Publishing Center RIOR, 2020. http://dx.doi.org/10.29039/02030-2.

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The recommendations summarize the results of the use of feed additives (ASD-2F, vitamin preparations, antioxidants, prebiotics) that stimulate the productivity and preservation of poultry, the production of quality products, both under normal conditions of feeding and keeping the bird, and in stressful situations.
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William, Martin-Rosset, ed. Adaptability of sport horses to stressful conditions. Amsterdam: Elsevier, 2005.

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Yanilov, Eyal, and Olo Boe. Krav Maga - Combat Mindset and Fighting Stress: How to Perform under Alarming and Stressful Conditions. Meyer & Meyer Sport, Limited, 2020.

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Kokubun, Makie, and Shuichi Asanuma. Crop Production under Stressful Conditions: Application of Cutting-edge Science and Technology in Developing Countries. Springer, 2018.

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Kokubun, Makie, and Shuichi Asanuma. Crop Production under Stressful Conditions: Application of Cutting-edge Science and Technology in Developing Countries. Springer, 2018.

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Kokubun, Makie, and Shuichi Asanuma. Crop Production under Stressful Conditions: Application of Cutting-edge Science and Technology in Developing Countries. Springer, 2018.

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Book chapters on the topic "Stressful conditions"

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Kokubun, Makie, and Shuichi Asanuma. "SATREPS Program Challenging Global Issues on Crop Production: Overview." In Crop Production under Stressful Conditions, 1–9. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3_1.

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Watanabe, Kazuo. "Bringing Stability to World Food Supplies with Japanese Technology and Mexican Genetic Resources." In Crop Production under Stressful Conditions, 177–93. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3_10.

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Asanuma, Shuichi, and Makie Kokubun. "Lessons Learned from SATREPS Projects and Perspectives." In Crop Production under Stressful Conditions, 195–212. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3_11.

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Tokunaga, Hiroki, Tamon Baba, Manabu Ishitani, Kasumi Ito, Ok-Kyung Kim, Le Huy Ham, Hoang Khac Le, et al. "Correction to: Sustainable Management of Invasive Cassava Pests in Vietnam, Cambodia, and Thailand." In Crop Production under Stressful Conditions, E1. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3_12.

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Yoshimura, Atsushi, Hideshi Yasui, Pham Van Cuong, Motoyuki Ashikari, Enric E. Angeres, Nguyen Van Hoan, Tran Tan Phuong, et al. "Development of Rice Promising Lines Using Genomic Technology and Information in Vietnam." In Crop Production under Stressful Conditions, 11–25. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3_2.

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Makihara, Daigo, John Kimani, Hiroaki Samejima, Mayumi Kikuta, Daniel Menge, Kazuyuki Doi, Yoshiaki Inukai, et al. "Development of Rice Breeding and Cultivation Technology Tailored for Kenya’s Environment." In Crop Production under Stressful Conditions, 27–47. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3_3.

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Iijima, Morio, Simon K. Awala, Pamwenafye I. Nanhapo, Anton Wanga, and Osmund D. Mwandemele. "Development of Flood- and Drought-Adaptive Cropping Systems in Namibia." In Crop Production under Stressful Conditions, 49–70. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3_4.

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Okada, Kensuke, and Lorena Lopez-Galvis. "Improving Resource Utilization Efficiency in Rice Production Systems with Contour-Levee Irrigation in Colombia." In Crop Production under Stressful Conditions, 71–86. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3_5.

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Ban, Tomohiro. "Development of Wheat Breeding Materials Using Genetic Resources in Afghanistan." In Crop Production under Stressful Conditions, 87–110. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3_6.

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Nakashima, Kazuo, Norihito Kanamori, Yukari Nagatoshi, Yasunari Fujita, Hironori Takasaki, Kaoru Urano, Junro Mogami, et al. "Application of Biotechnology to Generate Drought-Tolerant Soybean Plants in Brazil: Development of Genetic Engineering Technology of Crops with Stress Tolerance Against Degradation of Global Environment." In Crop Production under Stressful Conditions, 111–30. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7308-3_7.

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Conference papers on the topic "Stressful conditions"

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Shahin, Ismail, and Ali Bou Nassif. "Emirati-Accented Speaker Identification in Stressful Talking Conditions." In 2019 International Conference on Electrical and Computing Technologies and Applications (ICECTA). IEEE, 2019. http://dx.doi.org/10.1109/icecta48151.2019.8959731.

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Karpov, Kirill, Irina Fedotova, Dmitry Kachan, Veronika Kirova, and Eduard Siemens. "Impact of virtualization on timing precision under stressful network conditions." In IEEE EUROCON 2017 -17th International Conference on Smart Technologies. IEEE, 2017. http://dx.doi.org/10.1109/eurocon.2017.8011096.

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Stepanova, Galina. "Yield of alfalfa varieties is variable in stressful weather conditions." In Multifunctional adaptive fodder production. ru: Federal Williams Research Center of Forage Production and Agroecology, 2022. http://dx.doi.org/10.33814/mak-2022-28-76-70-79.

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The growing seasons of 2010 and 2011 were characterized by high air temperature and lack of moisture from April to August, which caused a significant decrease in yield. Pastbishch-nay 88 and Agnia varieties were the most productive in conditions of moisture deficiency. The collection of green mass amounted to 11.5–22.6 t/ha, seeds — 127–176 kg/ha. The yield of the Vega 87 standard variety was 7.3 and 15.2 t/ha of green mass, seeds — 97 and 113 kg/ha. In 2012, under weather conditions close to the average annual yield of Pastbishchnay88 and Agniya varieties increased to 50.1 and 51.8 t/ha of green mass, seeds — up to 669 and 747 kg/ha. The yield of the Vega 87 variety reached 43.2 t/ha of green mass and 386 kg/ha of seeds.
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Ji, Lili, Abdelaziz Laouadi, Chang Shu, Abhishek Gaur, and Michael Lacasse. "Physiological modeling of thermal responses of the elderly under heat-stressful conditions." In 2021 Building Simulation Conference. KU Leuven, 2021. http://dx.doi.org/10.26868/25222708.2021.31075.

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Bou-Ghazale, Sahar E., and John H. L. Hansen. "A novel training approach for improving speech recognition under adverse stressful conditions." In 5th European Conference on Speech Communication and Technology (Eurospeech 1997). ISCA: ISCA, 1997. http://dx.doi.org/10.21437/eurospeech.1997-627.

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Hoven, H., M. Wahrendorf, and J. Siegrist. "Cumulative Disadvantage during Employment Careers – the Link between Employment Histories and Stressful Working Conditions." In „Neue Ideen für mehr Gesundheit“. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1694430.

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Borisova-Mubarakshina, M. M., N. N. Rudenko, E. M. Zhurikova, I. A. Naidov, L. K. Ignatova, N. V. Balashov, D. V. Vetoshkina, and B. N. Ivanov. "Reducing the antenna of photosystem 2 - a universal mechanism for adapting plants to stressful conditions." In IX Congress of society physiologists of plants of Russia "Plant physiology is the basis for creating plants of the future". Kazan University Press, 2019. http://dx.doi.org/10.26907/978-5-00130-204-9-2019-79.

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Chimitdorzhiev, J. J. "SOME RESULTS OF THE SELF-INSULATION REGIME FOR THE PUBLIC FOOD MARKET." In Problems and mechanisms of implementation of national priorities of socio-economic development of Russia. Khabarovsk State University of Economics and Law, 2020. http://dx.doi.org/10.38161/978-5-7823-0740-0-2020-101-105.

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The world will no longer be the same as it was before the coronavirus. The economy changes due to stress. Catering has been at the forefront of the coronavirus attack. The omnichannel concept will help catering to survive in stressful situations. The company's management should intensify measures to improve equifinality and adaptability. The growth of sales in the take-out and delivery channels provides a rich food for thought for entrepreneurs how to grow their business under stressful conditions
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Stříbrný, Jakub, David Mac Gillav, and David Ullrich. "IMMEDIATE EFFECTS OF NUTRITION ON COGNITIVE FUNCTION UNDER STRESSFUL CONDITIONS; IMPLICATION FOR CIVILIAN AND MILITARY STUDENTS." In 15th annual International Conference of Education, Research and Innovation. IATED, 2022. http://dx.doi.org/10.21125/iceri.2022.1481.

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Kravchenko, Oksana, Marina Mishchenko, Olena Soroka, Anna Levenets, Valentyna Korolchuk, Serhii Myronets, Svitlana Tsymbal, Iryna Vahotska, and Natalia Hotsuliak. "Development of Social Workers Stress Tolerance in the Process of their Professional Activity." In 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1002269.

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The process social workers of different ages develop their high stress tolerance is the subject of study analysis in the article. A theoretical analysis of the phenomenon of "stress" is carried out, the content and essence of high stress tolerance and the essence of the concept of “high stress tolerance of the personality of social workers” are determined as an integrative dynamic structure that activates the ability to comprehend the specifics of a stressful situation and its own capabilities to overcome it, adequately react emotionally to various stressors, to change stressful (stress-producing) conditions and maintain the effectiveness of the activities performed.The features of the professional activity of social workers are considered. It was found that the overwhelming majority of social workers of all age categories have an average level of high stress tolerance, which indicates that in many stressful situations associated with the characteristics of their professional activities, they are able to regulate their own emotions, perform professional tasks at the proper level and maintain an optimal operability level.
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Reports on the topic "Stressful conditions"

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Ron, Eliora, and Eugene Eugene Nester. Global functional genomics of plant cell transformation by agrobacterium. United States Department of Agriculture, March 2009. http://dx.doi.org/10.32747/2009.7695860.bard.

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The aim of this study was to carry out a global functional genomics analysis of plant cell transformation by Agrobacterium in order to define and characterize the physiology of Agrobacterium in the acidic environment of a wounded plant. We planed to study the proteome and transcriptome of Agrobacterium in response to a change in pH, from 7.2 to 5.5 and identify genes and circuits directly involved in this change. Bacteria-plant interactions involve a large number of global regulatory systems, which are essential for protection against new stressful conditions. The interaction of bacteria with their hosts has been previously studied by genetic-physiological methods. We wanted to make use of the new capabilities to study these interactions on a global scale, using transcription analysis (transcriptomics, microarrays) and proteomics (2D gel electrophoresis and mass spectrometry). The results provided extensive data on the functional genomics under conditions that partially mimic plant infection and – in addition - revealed some surprising and significant data. Thus, we identified the genes whose expression is modulated when Agrobacterium is grown under the acidic conditions found in the rhizosphere (pH 5.5), an essential environmental factor in Agrobacterium – plant interactions essential for induction of the virulence program by plant signal molecules. Among the 45 genes whose expression was significantly elevated, of special interest is the two-component chromosomally encoded system, ChvG/I which is involved in regulating acid inducible genes. A second exciting system under acid and ChvG/Icontrol is a secretion system for proteins, T6SS, encoded by 14 genes which appears to be important for Rhizobium leguminosarum nodule formation and nitrogen fixation and for virulence of Agrobacterium. The proteome analysis revealed that gamma aminobutyric acid (GABA), a metabolite secreted by wounded plants, induces the synthesis of an Agrobacterium lactonase which degrades the quorum sensing signal, N-acyl homoserine lactone (AHL), resulting in attenuation of virulence. In addition, through a transcriptomic analysis of Agrobacterium growing at the pH of the rhizosphere (pH=5.5), we demonstrated that salicylic acid (SA) a well-studied plant signal molecule important in plant defense, attenuates Agrobacterium virulence in two distinct ways - by down regulating the synthesis of the virulence (vir) genes required for the processing and transfer of the T-DNA and by inducing the same lactonase, which in turn degrades the AHL. Thus, GABA and SA with different molecular structures, induce the expression of these same genes. The identification of genes whose expression is modulated by conditions that mimic plant infection, as well as the identification of regulatory molecules that help control the early stages of infection, advance our understanding of this complex bacterial-plant interaction and has immediate potential applications to modify it. We expect that the data generated by our research will be used to develop novel strategies for the control of crown gall disease. Moreover, these results will also provide the basis for future biotechnological approaches that will use genetic manipulations to improve bacterial-plant interactions, leading to more efficient DNA transfer to recalcitrant plants and robust symbiosis. These advances will, in turn, contribute to plant protection by introducing genes for resistance against other bacteria, pests and environmental stress.
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Seginer, Ido, Daniel H. Willits, Michael Raviv, and Mary M. Peet. Transpirational Cooling of Greenhouse Crops. United States Department of Agriculture, March 2000. http://dx.doi.org/10.32747/2000.7573072.bard.

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Background Transplanting vegetable seedlings to final spacing in the greenhouse is common practice. At the time of transplanting, the transpiring leaf area is a small fraction of the ground area and its cooling effect is rather limited. A preliminary modeling study suggested that if water supply from root to canopy is not limiting, a sparse crop could maintain about the same canopy temperature as a mature crop, at the expense of a considerably higher transpiration flux per leaf (and root) area. The objectives of this project were (1) to test the predictions of the model, (2) to select suitable cooling methods, and (3) to compare the drought resistance of differently prepared seedlings. Procedure Plants were grown in several configurations in high heat load environments, which were moderated by various environmental control methods. The difference between the three experimental locations was mainly in terms of scale, age of plants, and environmental control. Young potted plants were tested for a few days in small growth chambers at Technion and Newe Ya'ar. At NCSU, tomato plants of different ages and planting densities were compared over a whole growing season under conditions similar to commercial greenhouses. Results Effect of spacing: Densely spaced plants transpired less per plant and more per unit ground area than sparsely spaced plants. The canopy temperature of the densely spaced plants was lower. Air temperature was lower and humidity higher in the compartments with the densely spaced plants. The difference between species is mainly in the canopy-to-air Bowen ratio, which is positive for pepper and negative for tomato. Effect of cooling methods: Ventilation and evaporative pad cooling were found to be effective and synergitic. Air mixing turned out to be very ineffective, indicating that the canopy-to-air transfer coefficient is not the limiting factor in the ventilation process. Shading and misting, both affecting the leaf temperature directly, proved to be very effective canopy cooling methods. However, in view of their side effects, they should only be considered as emergency measures. On-line measures of stress: Chlorophyll fluorescence was shown to accurately predict photosynthesis. This is potentially useful as a rapid, non-contact way of assessing canopy heat stress. Normalized canopy temperature and transpiration rate were shown to correlate with water stress. Drought resistance of seedlings: Comparison between normal seedlings and partially defoliated ones, all subjected to prolonged drought, indicated that removing about half of the lowermost leaves prior to transplanting, may facilitate adjustment to the more stressful conditions in the greenhouse. Implications The results of this experimental study may lead to: (1) An improved model for a sparse canopy in a greenhouse. (2) A better ventilation design procedure utilizing improved estimates of the evaporation coefficient for different species and plant configurations. (3) A test for the stress resistance of transplants.
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Meiri, Noam, Michael D. Denbow, and Cynthia J. Denbow. Epigenetic Adaptation: The Regulatory Mechanisms of Hypothalamic Plasticity that Determine Stress-Response Set Point. United States Department of Agriculture, November 2013. http://dx.doi.org/10.32747/2013.7593396.bard.

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Our hypothesis was that postnatal stress exposure or sensory input alters brain activity, which induces acetylation and/or methylation on lysine residues of histone 3 and alters methylation levels in the promoter regions of stress-related genes, ultimately resulting in long-lasting changes in the stress-response set point. Therefore, the objectives of the proposal were: 1. To identify the levels of total histone 3 acetylation and different levels of methylation on lysine 9 and/or 14 during both heat and feed stress and challenge. 2. To evaluate the methylation and acetylation levels of histone 3 lysine 9 and/or 14 at the Bdnfpromoter during both heat and feed stress and challenge. 3. To evaluate the levels of the relevant methyltransferases and transmethylases during infliction of stress. 4. To identify the specific localization of the cells which respond to both specific histone modification and the enzyme involved by applying each of the stressors in the hypothalamus. 5. To evaluate the physiological effects of antisense knockdown of Ezh2 on the stress responses. 6. To measure the level of CpG methylation in the promoter region of BDNF in thermal treatments and free-fed, 12-hour fasted, and re-fed chicks during post-natal day 3, which is the critical period for feed-control establishment, and 10 days later to evaluate longterm effects. 7. The phenotypic effect of antisense “knock down” of the transmethylaseDNMT 3a. Background: The growing demand for improvements in poultry production requires an understanding of the mechanisms governing stress responses. Two of the major stressors affecting animal welfare and hence, the poultry industry in both the U.S. and Israel, are feed intake and thermal responses. Recently, it has been shown that the regulation of energy intake and expenditure, including feed intake and thermal regulation, resides in the hypothalamus and develops during a critical post-hatch period. However, little is known about the regulatory steps involved. The hypothesis to be tested in this proposal is that epigenetic changes in the hypothalamus during post-hatch early development determine the stress-response set point for both feed and thermal stressors. The ambitious goals that were set for this proposal were met. It was established that both stressors i.e. feed and thermal stress, can be manipulated during the critical period of development at day 3 to induce resilience to stress later in life. Specifically it was established that unfavorable nutritional conditions during early developmental periods or heat exposure influences subsequent adaptability to those same stressful conditions. Furthermore it was demonstrated that epigenetic marks on the promoter of genes involved in stress memory are altered both during stress, and as a result, later in life. Specifically it was demonstrated that fasting and heat had an effect on methylation and acetylation of histone 3 at various lysine residues in the hypothalamus during exposure to stress on day 3 and during stress challenge on day 10. Furthermore, the enzymes that perform these modifications are altered both during stress conditioning and challenge. Finally, these modifications are both necessary and sufficient, since antisense "knockdown" of these enzymes affects histone modifications, and as a consequence stress resilience. DNA methylation was also demonstrated at the promoters of genes involved in heat stress regulation and long-term resilience. It should be noted that the only goal that we did not meet because of technical reasons was No. 7. In conclusion: The outcome of this research may provide information for the improvement of stress responses in high yield poultry breeds using epigenetic adaptation approaches during critical periods in the course of early development in order to improve animal welfare even under suboptimum environmental conditions.
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Steffens, John C., and Eithan Harel. Polyphenol Oxidases- Expression, Assembly and Function. United States Department of Agriculture, January 1995. http://dx.doi.org/10.32747/1995.7571358.bard.

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Polyphenol oxidases (PPOs) participate in the preparation of many plant products on the one hand and cause considerable losses during processing of plant products on the other hand. However, the physiological functions of plant PPO were still a subject of controversy at the onset of the project. Preliminary observations that suggested involvement of PPOs in resistance to herbivores and pathogens held great promise for application in agriculture but required elucidation of PPO's function if modulation of PPO expression is to be considered for improving plant protection or storage and processing of plant products. Suggestions on a possible role of PPO in various aspects of chloroplast metabolism were also relevant in this context. The characterization of plant PPO genes opened a way for achieving these goals. We reasoned that "understanding PPO targeting and routing, designing ways to manipulate its expression and assessing the effects of such modifications will enable determination of the true properties of the enzyme and open the way for controlling its activity". The objective of the project was to "obtain an insight into the function and biological significance of PPOs" by examining possible function(s) of PPO in photosynthesis and plant-pest interactions using transgenic tomato plants; extending our understanding of PPO routing and assembly and the mechanism of its thylakoid translocation; preparing recombinant PPOs for use in import studies, determination of the genuine properties of PPOs and understanding its assembly and determining the effect of PPO's absence on chloroplast performance. Results obtained during work on the project made it necessary to abandon some minor objectives and devote the effort to more promising topics. Such changes are mentioned in the 'Body of the report' which is arranged according to the objectives of the original proposal. The complex expression pattern of tomato PPO gene family was determined. Individual members of the family are differentially expressed in various parts of the plant and subjected to developmentally regulated turnover. Some members are differentially regulated also by pathogens, wounding and chemical wound signals. Wounding systemically induces PPO activity and level in potato. Only tissues that are developmentally competent to express PPO are capable of responding to the systemic wounding signal by increased accumulation of PPO mRNA. Down regulation of PPO genes causes hyper susceptibility to leaf pathogens in tomato while over expression regulation of PPO expression in tomato plants is their apparent increased tolerance to drought. Both the enhanced disease resistance conferred by PPO over expression and the increased stress tolerance due to down regulation can be used in the engineering of improved crop plants. Photosynthesis rate and variable fluorescence measurements in wild type, and PPO-null and over expressing transgenic tomato lines suggest that PPO does not enable plants to cope better with stressful high light intensities or reactive oxygen species. Rather high levels of the enzyme aggravate the damage caused under such conditions. Our work suggests that PPO's primary role is in defending plants against pathogens and herbivores. Jasmonate and ethylene, and apparently also salicylate, signals involved in responses to wounding and defense against herbivores and pathogens, enhance markedly and specifically the competence of chloroplasts to import and process pPPO. The interaction of the precursor with thylakoid membranes is primarily affected. The routing of PPO shows other unusual properties: stromal processing occurs in two sites, resulting in intermediates that are translocated across thylakoids by two different mechanisms - a DpH- and a Sec-dependent one. It is suggested that the dual pattern of processing and routing constitutes a'fail safe' mechanism, reflecting the need for a rapid and flexible response to defense challenges. Many of the observations described above should be taken into consideration when manipulation of PPO expression is contemplated for use in crop improvement.
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