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https://www.readbyqxmd.com/read/28338719/the-legume-mir1514a-modulates-a-nac-transcription-factor-transcript-to-trigger-phasirna-formation-in-response-to-drought
#1
Guadalupe Sosa-Valencia, Miguel Palomar, Alejandra A Covarrubias, José L Reyes
Recent studies have identified microRNAs as post-transcriptional regulators involved in stress responses. miR1514a is a legume microRNA that is induced in response to drought stress in Phaseolus vulgaris (common bean) and shows differential accumulation levels in roots during water deficit in two cultivars with different drought tolerance phenotypes. A recent degradome analysis revealed that miR1514a targets the transcripts of two NAC transcription factors (TFs), Phvul.010g121000 and Phvul.010g120700. Furthermore, expression studies and small RNA-seq data indicate that only Phvul...
October 7, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338078/the-transmembrane-serine-protease-hat-like-4-is-important-for-epidermal-barrier-function-to-prevent-body-fluid-loss
#2
Zhiwei Zhang, Yae Hu, Ruhong Yan, Liang Dong, Yizhi Jiang, Zhichao Zhou, Meng Liu, Tiantian Zhou, Ningzheng Dong, Qingyu Wu
Membrane-bound proteases are essential for epidermal integrity. Human airway trypsin-like protease 4 (HAT-L4) is a type II transmembrane serine protease. Currently, its biochemical property, cellular distribution and physiological function remain unknown. Here we examined HAT-L4 expression and function in vitro and in vivo. In Western analysis, HAT-L4 expressed in transfected CHO cells appeared as a 48-kDa protein. Flow cytometry confirmed HAT-L4 expression on the cell surface with the expected membrane topology...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337841/yeast-aquaporin-regulation-by-4-hydroxynonenal-is-implicated-in-oxidative-stress-response
#3
Claudia Rodrigues, Ivana Tartaro Bujak, Branka Mihaljević, Graça Soveral, Ana Cipak Gasparovic
Reactive oxygen species, especially hydrogen peroxide (H2 O2 ), contribute to functional molecular impairment and cellular damage, but also are necessary in normal cellular metabolism, and in low doses play stimulatory role in cell proliferation and stress resistance. In parallel, reactive aldehydes such as 4-hydroxynonenal (HNE), are lipid peroxidation breakdown products which also contribute to regulation of numerous cellular processes. Recently, channeling of H2 O2 by some mammalian aquaporin isoforms has been reported and suggested to contribute to aquaporin involvement in cancer malignancies, although the mechanism by which these membrane water channels are implicated in oxidative stress is not clear...
March 24, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28337713/the-potential-role-of-fibroblast-growth-factor-21-in-lipid-metabolism-and-hypertension
#4
REVIEW
Zhe Huang, Aimin Xu, Bernard M Y Cheung
Fibroblast growth factor (FGF) 21 belongs to the FGF superfamily that is involved in cell proliferation and differentiation, neural development, angiogenesis, and metabolism. FGF21 requires β-Klotho as a co-receptor. Tissues involved in metabolism such as the liver, adipose tissues, skeletal muscle, and pancreas express FGF21. Starvation increases hepatic expression of FGF21, which then acts centrally to increase hepatic gluconeogenesis. FGF21 also increases fatty acid oxidation. This may be relevant in cold exposure, when expression of FGF21 is induced...
April 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28336824/-the-functions-of-calcium-sensing-receptor-in-regulating-mineral-metabolism
#5
Yuka Kinoshita
Calcium-sensing receptor(CaSR)which belongs to a G protein-coupled receptor family is one of the key elements in regulating calcium homeostasis. CaSR has been identified as a receptor to control parathyroid hormone(PTH)secretion in parathyroid glands according to serum calcium ion(Ca2+)levels. It has also been shown that CaSR controls reabsorption of water and several cations including Ca2+and magnesium ion(Mg2+)in renal tubular cells. This review summarizes the functions and roles of CaSR in mineral metabolism that are exerted in parathyroid glands, kidney, and intestine...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28335828/dha-brain-uptake-and-apoe4-status-a-pet-study-with-1-11-c-dha
#6
Hussein N Yassine, Etienne Croteau, Varun Rawat, Joseph R Hibbeln, Stanley I Rapoport, Stephen C Cunnane, John C Umhau
BACKGROUND: The apolipoprotein E ɛ4 (APOE4) allele is the strongest genetic risk factor identified for developing Alzheimer's disease (AD). Among brain lipids, alteration in the ω-3 polyunsaturated fatty acid docosahexaenoic acid (DHA) homeostasis is implicated in AD pathogenesis. APOE4 may influence both brain DHA metabolism and cognitive outcomes. METHODS: Using positron emission tomography, regional incorporation coefficients (k*), rates of DHA incorporation from plasma into the brain using [1-(11)C]-DHA (J in), and regional cerebral blood flow using [(15)O]-water were measured in 22 middle-aged healthy adults (mean age 35 years, range 19-65 years)...
March 23, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28335808/potential-for-hydrogen-oxidizing-chemolithoautotrophic-and-diazotrophic-populations-to-initiate-biofilm-formation-in-oligotrophic-deep-terrestrial-subsurface-waters
#7
Xiaofen Wu, Karsten Pedersen, Johanna Edlund, Lena Eriksson, Mats Åström, Anders F Andersson, Stefan Bertilsson, Mark Dopson
BACKGROUND: Deep terrestrial biosphere waters are separated from the light-driven surface by the time required to percolate to the subsurface. Despite biofilms being the dominant form of microbial life in many natural environments, they have received little attention in the oligotrophic and anaerobic waters found in deep bedrock fractures. This study is the first to use community DNA sequencing to describe biofilm formation under in situ conditions in the deep terrestrial biosphere. RESULTS: In this study, flow cells were attached to boreholes containing either "modern marine" or "old saline" waters of different origin and degree of isolation from the light-driven surface of the earth...
March 23, 2017: Microbiome
https://www.readbyqxmd.com/read/28335448/a-community-multi-omics-approach-towards-the-assessment-of-surface-water-quality-in-an-urban-river-system
#8
David J Beale, Avinash V Karpe, Warish Ahmed, Stephen Cook, Paul D Morrison, Christopher Staley, Michael J Sadowsky, Enzo A Palombo
A multi-omics approach was applied to an urban river system (the Brisbane River (BR), Queensland, Australia) in order to investigate surface water quality and characterize the bacterial population with respect to water contaminants. To do this, bacterial metagenomic amplicon-sequencing using Illumina next-generation sequencing (NGS) of the V5-V6 hypervariable regions of the 16S rRNA gene and untargeted community metabolomics using gas chromatography coupled with mass spectrometry (GC-MS) were utilized. The multi-omics data, in combination with fecal indicator bacteria (FIB) counts, trace metal concentrations (by inductively coupled plasma mass spectrometry (ICP-MS)) and in-situ water quality measurements collected from various locations along the BR were then used to assess the health of the river ecosystem...
March 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28334275/identification-of-a-novel-bzip-transcription-factor-in-camellia-sinensis-as-a-negative-regulator-of-freezing-tolerance-in-transgenic-arabidopsis
#9
Lu Wang, Hongli Cao, Wenjun Qian, Lina Yao, Xinyuan Hao, Nana Li, Yajun Yang, Xinchao Wang
Background and Aims: Basic region/leucine zipper (bZIP) transcription factors play vital roles in the abiotic stress response of plants. However, little is known about the function of bZIP genes in Camellia sinensis . Methods: CsbZIP6 was overexpressed in Arabidopsis thaliana . Effects of CsbZIP6 overexpression on abscisic acid (ABA) sensitivity, freezing tolerance and the expression of cold-responsive genes in arabidopsis were studied. Key Results: CsbZIP6 was induced during cold acclimation in tea plant...
March 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28333068/effects-of-reactive-oxygen-species-on-tubular-transport-along-the-nephron
#10
REVIEW
Agustin Gonzalez-Vicente, Jeffrey L Garvin
Reactive oxygen species (ROS) are oxygen-containing molecules naturally occurring in both inorganic and biological chemical systems. Due to their high reactivity and potentially damaging effects to biomolecules, cells express a battery of enzymes to rapidly metabolize them to innocuous intermediaries. Initially, ROS were considered by biologists as dangerous byproducts of respiration capable of causing oxidative stress, a condition in which overproduction of ROS leads to a reduction in protective molecules and enzymes and consequent damage to lipids, proteins, and DNA...
March 23, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28331161/isolation-of-cyanobacterial-mutants-exhibiting-growth-defects-under-microoxic-conditions-by-transposon-tagging-mutagenesis-of-synechocystis-sp-pcc-6803
#11
Kazuki Terauchi, Riho Sobue, Yuho Furutani, Rina Aoki, Yuichi Fujita
Cyanobacteria are photosynthetic prokaryotes that perform oxygenic photosynthesis by extracting electrons from water, with the generation of oxygen as a byproduct. Cyanobacteria use oxygen not only for respiration to produce energy in the dark but also for biosynthesis of various metabolites, such as heme and chlorophyll. Oxygen levels dynamically fluctuate in the field environments, from hyperoxic at daytime to almost anaerobic at night. Thus, adaptation to anaerobiosis should be important for cyanobacteria to survive in low-oxygen and anaerobic environments...
March 22, 2017: Journal of General and Applied Microbiology
https://www.readbyqxmd.com/read/28331059/adaptive-changes-in-gfr-tubular-morphology-and-transport-in-subtotal-nephrectomized-kidneys-modeling-and-analysis
#12
Anita T Layton, Aurélie Edwards, Volker Vallon
Removal of renal mass stimulates anatomical and functional adaptations in the surviving nephrons, including elevation in single-nephron glomerular filtration rate (SNGFR) and tubular hypertrophy. A goal of this study is to assess the extent to which the concomitant increases in filtered load and tubular transport capacity preserve homeostasis of water and salt. To accomplish that goal, we developed computational models to simulate solute transport and metabolism along nephron populations in a uninephrectomized (UNX) rat and a 5/6-nephrectomized (5/6-NX) rat...
March 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28330766/water-metabolism-dysfunction-via-renin-angiotensin-system-activation-caused-by-liver-damage-in-mice-treated-with-microcystin-rr
#13
Qing Zhong, Feng Sun, Weiguang Wang, Wenqing Xiao, Xiaoni Zhao, Kangding Gu
Microcystins (MCs) are a group of monocyclic heptapeptide toxins that have been shown to act as potent hepatotoxins. However, the observed symptoms of water metabolism disruption induced by microcystin-RR (MC-RR) or MCs have rarely been reported, and a relatively clear mechanism has not been identified. In the present study, male mice were divided into 4 groups (A: 140μg/kg, B: 70μg/kg,C: 35μg/kg, and D: 0μg/kg) and administered MC-RR daily for a month. On day 8 of treatment, an increase in water intake and urine output was observed in the high-dose group compared with the control, and the symptoms worsened with the repeated administration of the toxin until day 30...
March 19, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28330456/genome-wide-expression-profiling-in-leaves-and-roots-of-date-palm-phoenix-dactylifera-l-exposed-to-salinity
#14
Mahmoud W Yaish, Himanshu V Patankar, Dekoum V M Assaha, Yun Zheng, Rashid Al-Yahyai, Ramanjulu Sunkar
BACKGROUND: Date palm, as one of the most important fruit crops in North African and West Asian countries including Oman, is facing serious growth problems due to salinity, arising from persistent use of saline water for irrigation. Although date palm is a relatively salt-tolerant plant species, its adaptive mechanisms to salt stress are largely unknown. RESULTS: In order to get an insight into molecular mechanisms of salt tolerance, RNA was profiled in leaves and roots of date palm seedlings subjected to NaCl for 10 days...
March 22, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28330219/effect-of-chlorpyrifos-on-soil-microbial-diversity-and-its-biotransformation-by-streptomyces-sp-hp-11
#15
M Supreeth, M A Chandrashekar, N Sachin, N S Raju
The application of pesticides in agricultural fields not only reaches the target pests but also with soil where it interacts with soil microorganisms resulting in change of microbial diversity. Chlorpyrifos (CP) is one such organophosphorous insecticide most widely used against various insects, termites, and beetles throughout the globe. In the present work, the effect of CP on soil microbial population was assessed by the cultivable method. The fertile soil which does not have a history of any pesticide application was treated with 100 and 200 µg/g of CP along with control which received only sterile water and incubated for 1, 7, and 14 days...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330116/novel-pathway-of-cypermethrin-biodegradation-in-a-bacillus-sp-strain-sg2-isolated-from-cypermethrin-contaminated-agriculture-field
#16
Pankaj, Anita Sharma, Saurabh Gangola, Priyanka Khati, Govind Kumar, Anjana Srivastava
Pesticides belonging to pyrethroid group are widely used in agricultural fields to check pest infestation in different crops for enhanced food production. In spite of beneficial effects, non-judicious use of pesticides imposes harmful effect on human health as their residues reach different food materials and ground water via leaching, percolation and bioaccumulation. Looking into the potential of microbial degradation of toxic compounds under natural environment, a cypermethrin-degrading Bacillus sp. was isolated from pesticide-contaminated soil of a rice field of Distt...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28326315/genomewide-expression-and-functional-interactions-of-genes-under-drought-stress-in-maize
#17
Nepolean Thirunavukkarasu, Rinku Sharma, Nidhi Singh, Kaliyugam Shiriga, Sweta Mohan, Swati Mittal, Shikha Mittal, Mallana Gowdra Mallikarjuna, Atmakuri Ramakrishna Rao, Prasanta Kumar Dash, Firoz Hossain, Hari Shanker Gupta
A genomewide transcriptome assay of two subtropical genotypes of maize was used to observe the expression of genes at seedling stage of drought stress. The number of genes expressed differentially was greater in HKI1532 (a drought tolerant genotype) than in PC3 (a drought sensitive genotype), indicating primary differences at the transcriptional level in stress tolerance. The global coexpression networks of the two genotypes differed significantly with respect to the number of modules and the coexpression pattern within the modules...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28326069/different-bacterial-communities-involved-in-peptide-decomposition-between-normoxic-and-hypoxic-coastal-waters
#18
Shuting Liu, Boris Wawrik, Zhanfei Liu
Proteins and peptides are key components of the labile dissolved organic matter pool in marine environments. Knowing which types of bacteria metabolize peptides can inform the factors that govern peptide decomposition and further carbon and nitrogen remineralization in marine environments. A (13)C-labeled tetrapeptide, alanine-valine-phenylalanine-alanine (AVFA), was added to both surface (normoxic) and bottom (hypoxic) seawater from a coastal station in the northern Gulf of Mexico for a 2-day incubation experiment, and bacteria that incorporated the peptide were identified using DNA stable isotope probing (SIP)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28326005/bioactivity-of-food-peptides-biological-response-of-rats-to-bovine-milk-whey-peptides-following-acute-exercise
#19
Carolina Soares Moura, Pablo Christiano Barboza Lollo, Priscila Neder Morato, Eder Muller Risso, Jaime Amaya-Farfan
Background: Several physiologically beneficial effects of consuming a whey protein hydrolysate (WPH) have been attributed to the greater availability of bioactive peptides. Aims: The aim was to investigate the effect of four branched-chain amino acid- (BCAA-)containing dipeptides, present in WPH, on immune modulation, stimulation of HSP expression, muscle protein synthesis, glycogen content, satiety signals and the impact of these peptides on the plasma free amino acid profiles. Methods: The animals were divided in groups: control (rest, without gavage), vehicle (water), L-isoleucyl-L-leucine (lle-Leu), L-leucyl-L-isoleucine (Leu-lle), L-valyl-Lleucine (Val-Leu), L-leucyl-L-valine (Leu-Val) and WPH...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28324842/phenotypical-physiological-and-biochemical-analyses-provide-insight-into-selenium-induced-phytotoxicity-in-rice-plants
#20
Mohammad Golam Mostofa, Mohammad Anwar Hossain, Md Nurealam Siddiqui, Masayuki Fujita, Lam-Son Phan Tran
The present study investigated the phenotypical, physiological and biochemical changes of rice plants exposed to high selenium (Se) concentrations to gain an insight into Se-induced phytotoxicity. Results showed that exposure of rice plants to excessive Se resulted in growth retardation and biomass reduction in connection with the decreased levels of chlorophyll, carotenoids and soluble proteins. The reduced water status and an associated increase in sugar and proline levels indicated Se-induced osmotic stress in rice plants...
March 11, 2017: Chemosphere
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