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https://www.readbyqxmd.com/read/28319117/comparative-genomics-of-clavibacter-michiganensis-subspecies-pathogens-of-important-agricultural-crops
#1
James T Tambong
Subspecies of Clavibacter michiganensis are important phytobacterial pathogens causing devastating diseases in several agricultural crops. The genome organizations of these pathogens are poorly understood. Here, the complete genomes of 5 subspecies (C. michiganensis subsp. michiganensis, Cmi; C. michiganensis subsp. sepedonicus, Cms; C. michiganensis subsp. nebraskensis, Cmn; C. michiganensis subsp. insidiosus, Cmi and C. michiganensis subsp. capsici, Cmc) were analyzed. This study assessed the taxonomic position of the subspecies based on 16S rRNA and genome-based DNA homology and concludes that there is ample evidence to elevate some of the subspecies to species-level...
2017: PloS One
https://www.readbyqxmd.com/read/28302069/bioinformatics-identification-of-new-targets-for-improving-low-temperature-stress-tolerance-in-spring-and-winter-wheat
#2
Alain B Tchagang, François Fauteux, Dan Tulpan, Youlian Pan
BACKGROUND: Phenotypic studies in Triticeae have shown that low temperature-induced protective mechanisms are developmentally regulated and involve dynamic acclimation processes. Understanding these mechanisms is important for breeding cold-resistant wheat cultivars. In this study, we combined three computational techniques for the analysis of gene expression data from spring and winter wheat cultivars subjected to low temperature treatments. Our main objective was to construct a comprehensive network of cold response transcriptional events in wheat, and to identify novel cold tolerance candidate genes in wheat...
March 16, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28285429/hypothermia-decreased-the-expression-of-heat-shock-proteins-in-neonatal-rat-model-of-hypoxic-ischemic-encephalopathy
#3
Byong Sop Lee, Euiseok Jung, Yeonjoo Lee, Sung-Hoon Chung
Hypothermia (HT) is a well-established neuroprotective strategy against neonatal hypoxic ischemic encephalopathy (HIE). The overexpression of heat shock proteins (HSP) has been shown to provide neuroprotection in animal models of stroke. We aimed to investigate the effect of HT on HSP70 and HSP27 expression in a neonatal rat model of HIE. Seven-day-old rat pups were exposed to hypoxia for 90 min to establish the Rice-Vannucci model and were assigned to the following four groups: hypoxic injury (HI)-normothermia (NT, 36 °C), HI-HT (30 °C), sham-NT, and sham-HT...
March 11, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28281578/improved-drought-tolerance-in-wheat-plants-overexpressing-a-synthetic-bacterial-cold-shock-protein-gene-secspa
#4
Tai-Fei Yu, Zhao-Shi Xu, Jin-Kao Guo, Yan-Xia Wang, Brian Abernathy, Jin-Dong Fu, Xiao Chen, Yong-Bin Zhou, Ming Chen, Xing-Guo Ye, You-Zhi Ma
Cold shock proteins (CSPs) enhance acclimatization of bacteria to adverse environmental circumstances. The Escherichia coli CSP genes CspA and CspB were modified to plant-preferred codon sequences and named as SeCspA and SeCspB. Overexpression of exogenous SeCspA and SeCspB in transgenic Arabidopsis lines increased germination rates, survival rates, and increased primary root length compared to control plants under drought and salt stress. Investigation of several stress-related parameters in SeCspA and SeCspB transgenic wheat lines indicated that these lines possessed stress tolerance characteristics, including lower malondialdehyde (MDA) content, lower water loss rates, lower relative Na(+) content, and higher chlorophyll content and proline content than the control wheat plants under drought and salt stresses...
March 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28265106/profiling-proteinic-changes-induced-by-vildagliptin-treatment-in-a-mouse-lung-transplantation-model-the-role-of-kininogen-1
#5
Zheng Tang, Wei Zhai, Zhiwei Wang, Zhipeng Hu, Min Zhang
BACKGROUND This study investigated the protective effects of pharmaceutical CD26/dipeptidylpeptidase-4 (CD26/DPP-4) inhibitor in lung transplantation (LTx). Changes in protein expression associated with the treatment were screened and identified to evaluate the role of kininogen-1 in early-term ischemia/reperfusion (I/R) injury after LTx. MATERIAL AND METHODS Orthotopic single LTx was performed in syngeneic C57BL/6 mice, with a pharmaceutical CD26/DPP-4 inhibitor (vildagliptin, subcutaneous injection, 10 mg/kg, every 12 h) administered to the investigational group...
March 7, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28263166/the-red-cell-storage-lesion-s-of-dogs-and-men
#6
REVIEW
Harvey G Klein
The advent of preservative solutions permitted refrigerated storage of red blood cells. However, the convenience of having red blood cell inventories was accompanied by a disadvantage. Red cells undergo numerous physical and metabolic changes during cold storage, the "storage lesion(s)". Whereas controlled clinical trials have not confirmed the clinical importance of such changes, ethical and operational issues have prevented careful study of the oldest stored red blood cells. Suggestions of toxicity from meta-analyses motivated us to develop pre-clinical canine models to compare the freshest vs the oldest red blood cells...
March 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28251406/combining-three-mild-stresses-in-drosophila-melanogaster-flies-does-not-have-a-more-positive-effect-on-resistance-to-a-severe-cold-stress-than-combining-two-mild-stresses
#7
Éric Le Bourg
Among other positive effects, mild stresses can increase resistance to severe stresses. Previous studies combining two mild stresses showed that when each mild stress had positive effects their combination had more positive effects than each mild stress. The present study tested whether combining three mild stresses could still provide positive additive effects, or whether this combination has negative effects because it is no longer a mild stress but rather a strong stress with negative effects. Flies were subjected to either fasting, hypergravity for one or two weeks, or cold shocks, to combinations of two or of the three mild stresses, and survival to a severe cold stress was observed at 13 or 20 days of age...
March 1, 2017: Biogerontology
https://www.readbyqxmd.com/read/28242468/habituation-of-the-cold-shock-response-is-inhibited-by-repeated-anxiety-implications-for-safety-behaviour-on-accidental-cold-water-immersions
#8
Martin J Barwood, Jo Corbett, Mike Tipton, Christopher Wagstaff, Heather Massey
INTRODUCTION: Accidental cold-water immersion (CWI) triggers the life-threatening cold shock response (CSR) which is a precursor to sudden death on immersion. One practical means of reducing the CSR is to induce an habituation by undergoing repeated short CWIs. Habituation of the CSR is known to be partially reversed by the concomitant experience of acute anxiety, raising the possibility that repeated anxiety could prevent CSR habituation; we tested this hypothesis. METHOD: Sixteen participants (12 male, 4 female) completed seven, seven-minute immersions in to cold water (15°C)...
February 24, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28238655/rtn3-is-a-novel-cold-induced-protein-and-mediates-neuroprotective-effects-of-rbm3
#9
Amandine Bastide, Diego Peretti, John R P Knight, Stefano Grosso, Ruth V Spriggs, Xavier Pichon, Thomas Sbarrato, Anne Roobol, Jo Roobol, Davide Vito, Martin Bushell, Tobias von der Haar, C Mark Smales, Giovanna R Mallucci, Anne E Willis
Cooling and hypothermia are profoundly neuroprotective, mediated, at least in part, by the cold shock protein, RBM3. However, the neuroprotective effector proteins induced by RBM3 and the mechanisms by which mRNAs encoding cold shock proteins escape cooling-induced translational repression are unknown. Here, we show that cooling induces reprogramming of the translatome, including the upregulation of a new cold shock protein, RTN3, a reticulon protein implicated in synapse formation. We report that this has two mechanistic components...
March 6, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28223714/comparative-physiological-and-transcriptomic-analyses-provide-integrated-insight-into-osmotic-cold-and-salt-stress-tolerance-mechanisms-in-banana
#10
Wei Hu, Zehong Ding, Weiwei Tie, Yan Yan, Yang Liu, Chunlai Wu, Juhua Liu, Jiashui Wang, Ming Peng, Biyu Xu, Zhiqiang Jin
The growth, development, and production of banana plants are constrained by multiple abiotic stressors. However, it remains elusive for the tolerance mechanisms of banana responding to multiple abiotic stresses. In this study, we found that Fen Jiao (FJ) was more tolerant to osmotic, cold, and salt stresses than BaXi Jiao (BX) by phenotypic and physiological analyses. Comparative transcriptomic analyses highlighted stress tolerance genes that either specifically regulated in FJ or changed more than twofold in FJ relative to BX after treatments...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194325/serum-yb-1-y-box-binding-protein-1-as-a-biomarker-of-bone-disease-progression-in-patients-with-breast-cancer-and-bone-metastases
#11
A R Ferreira, M Bettencourt, I Alho, A L Costa, A R Sousa, A Mansinho, C Abreu, C Pulido, D Macedo, I Vendrell, T R Pacheco, L Costa, S Casimiro
YB-1 (Y-box binding protein 1) is a multifunctional cold-shock protein that has been implicated in all hallmarks of cancer. Elevated YB-1 protein level was associated with poor prognosis in several types of cancers, including breast cancer (BC), where it is a marker of decreased overall survival (OS) and distant metastasis-free survival across all subtypes. YB-1 is also secreted by different cell types and may act as an extracellular mitogen; however the pathological implications of the secreted form of YB-1 (sYB-1) are unknown...
March 2017: Journal of Bone Oncology
https://www.readbyqxmd.com/read/28176661/cold-shock-protein-a-from-corynebacterium-pseudotuberculosis-role-of-electrostatic-forces-in-the-stability-of-the-secondary-structure
#12
Monika A Coronado, Icaro P Caruso, Vinícius M De Oliveira, Vinícius G Contessoto, Vitor B P Leite, L A Kawai, Raghuvir K Arni, Raphael J Eberle
The conformational stability of the Cold shock protein A (CspA) from C. pseudotuberculosis (Cp), a nucleic acid binding protein in function of pH and salt concentration was examined by using differential scanning calorimetry and CD spectroscopy in combination with computational analysis to identify the specify amino acids undergoing change. Our approach identified a sodium-binding site in CpCspA and at pH 8.0 a significant reduction in the β-sheet content was observed which resulted in a decrease of the protein thermal stability...
February 7, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28166240/involvement-of-multiple-stressors-induced-by-non-thermal-plasma-charged-aerosols-during-inactivation-of-airborne-bacteria
#13
Nachiket D Vaze, Sin Park, Ari D Brooks, Alexander Fridman, Suresh G Joshi
A lab-scale, tunable, single-filament, point-to-point nonthermal dieletric-barrier discharge (DBD) plasma device was built to study the mechanisms of inactivation of aerosolized bacterial pathogens. The system inactivates airborne antibiotic-resistant pathogens efficiently. Nebulization mediated pre-optimized (4 log and 7 log) bacterial loads were challenged to plasma-charged aerosols, and lethal and sublethal doses determined using colony assay, and cell viability assay; and the loss of membrane potential and cellular respiration were determined using cell membrane potential assay and XTT assay...
2017: PloS One
https://www.readbyqxmd.com/read/28155127/attenuation-of-exercise-induced-heat-shock-protein-72-expression-blunts-improvements-in-whole-body-insulin-resistance-in-rats-with-type-2-diabetes
#14
Takamasa Tsuzuki, Hiroyuki Kobayashi, Toshinori Yoshihara, Ryo Kakigi, Noriko Ichinoseki-Sekine, Hisashi Naito
Heat shock proteins (HSPs) play an important role in insulin resistance and improve the cellular stress response via HSP induction by exercise to treat type 2 diabetes. In this study, the effects of exercise-induced HSP72 expression levels on whole-body insulin resistance in type 2 diabetic rats were investigated. Male 25-week-old Otsuka Long-Evans Tokushima Fatty rats were divided into three groups: sedentary (Sed), trained in a thermal-neutral environment (NTr: 25 °C), and trained in a cold environment (CTr: 4 °C)...
February 2, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28144636/comparative-study-of-growth-and-gonad-maturation-in-diploid-and-triploid-marine-medaka-oryzias-dancena
#15
In-Seok Park, Hyun Woo Gil, Tae Ho Lee, Yoon Kwon Nam, Dong Soo Kim
The marine medaka, Oryzias dancena is a suitable sample as a laboratory animal because it has a small size and clearly distinguishes between female and male. Data on the growth and maturity of the diploid and triploid sea cucurbit species suitable for laboratory animals are very useful for studying other species. Triploidy was induced in the marine medaka by cold shock treatment (0°C) of fertilized eggs for 45 min, applied two minutes after fertilization. The diploid and triploid male fish were larger than their female counterparts (P<0...
December 2016: Balsaeng'gwa Saengsig
https://www.readbyqxmd.com/read/28138902/ectopic-expression-of-plant-rna-chaperone-offering-multiple-stress-tolerance-in-e-coli
#16
Bushra Jabeen, S M Saqlan Naqvi, Tariq Mahmood, Tasawar Sultana, Madiha Arif, Fariha Khan
Members of the plant glycine-rich RNA-binding proteins (GR-RBPs) family have been reported in flowering, development, circadian rhythms, biotic and abiotic stresses. Particularly, GR-RBPs are reported to function as RNA chaperones, promoting growth and acclimation during cold shock. It is indispensable to further question the efficacy and mechanism of GR-RBPs under various environmental strains. Monitoring the expression of stress-regulated proteins under stress conditions has been a beneficial strategy to study their functional roles...
March 2017: Molecular Biotechnology
https://www.readbyqxmd.com/read/28128346/a-lin28-homologue-reprograms-differentiated-cells-to-stem-cells-in-the-moss-physcomitrella-patens
#17
Chen Li, Yusuke Sako, Akihiro Imai, Tomoaki Nishiyama, Kari Thompson, Minoru Kubo, Yuji Hiwatashi, Yukiko Kabeya, Dale Karlson, Shu-Hsing Wu, Masaki Ishikawa, Takashi Murata, Philip N Benfey, Yoshikatsu Sato, Yosuke Tamada, Mitsuyasu Hasebe
Both land plants and metazoa have the capacity to reprogram differentiated cells to stem cells. Here we show that the moss Physcomitrella patens Cold-Shock Domain Protein 1 (PpCSP1) regulates reprogramming of differentiated leaf cells to chloronema apical stem cells and shares conserved domains with the induced pluripotent stem cell factor Lin28 in mammals. PpCSP1 accumulates in the reprogramming cells and is maintained throughout the reprogramming process and in the resultant stem cells. Expression of PpCSP1 is negatively regulated by its 3'-untranslated region (3'-UTR)...
January 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28126922/rna-binding-and-chaperone-activity-of-the-e-coli-cold-shock-protein-cspa
#18
Enrico Rennella, Tomáš Sára, Michael Juen, Christoph Wunderlich, Lionel Imbert, Zsofia Solyom, Adrien Favier, Isabel Ayala, Katharina Weinhäupl, Paul Schanda, Robert Konrat, Christoph Kreutz, Bernhard Brutscher
Ensuring the correct folding of RNA molecules in the cell is of major importance for a large variety of biological functions. Therefore, chaperone proteins that assist RNA in adopting their functionally active states are abundant in all living organisms. An important feature of RNA chaperone proteins is that they do not require an external energy source to perform their activity, and that they interact transiently and non-specifically with their RNA targets. So far, little is known about the mechanistic details of the RNA chaperone activity of these proteins...
January 26, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28116450/cold-agglutinin-disease-an-unusual-cause-of-shock-in-the-icu
#19
Hasan M Al-Dorzi, Hind Salama, Areej Almugairi, Yaseen M Arabi
No abstract text is available yet for this article.
January 23, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28115385/freshwater-cyanobacterial-interactions-with-bacterial-antagonists
#20
Omneya Ahmed Osman, Sara Beier, Manfred Grabherr, Stefan Bertilsson
Cyanobacterial and algal mass development or "blooms" have severe effects on freshwater and marine systems around the world. Many of these phototrophs produce a variety of potent toxins, contribute to oxygen depletion, and affect water quality in several ways. Coexisting antagonists such as cyanolytic bacteria, hold the potential to suppress, or even terminate such blooms, yet the nature of this interaction is not well studied. We isolated 31 cyanolytic bacteria affiliated with the genera Pseudomonas, Stenotrophomonas, Acinetobacter and Delftia from three eutrophic freshwater lakes in Sweden, and selected four phylogenetically diverse bacterial strains with strong to moderate lytic activity...
January 23, 2017: Applied and Environmental Microbiology
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