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https://www.readbyqxmd.com/read/28738543/phenolic-compounds-of-triplaris-gardneriana-can-protect-cells-against-oxidative-stress-and-restore-oxidative-balance
#1
Thiago Silva de Almeida, José Joaquim Lopes Neto, Nathanna Mateus de Sousa, Igor Parra Pessoa, Leonardo Rogério Vieira, Jackeline Lima de Medeiros, Aline Augusti Boligon, Astrid R M Hamers, Davi Felipe Farias, Ad Peijnenburg, Ana Fontenele Urano Carvalho
This work aimed to add value to an underexploited plant species from Brazil, Triplaris gardneriana. To that, the phenolic compounds profile of its seed ethanolic extract and fractions was examined by HPLC and the antioxidant capacity assessed using chemical assays as well as in vitro cell imaging. Twelve compounds were quantified and classified as either phenolic acids or flavonoids. The fractionation process did not generate fractions with different compositions except for chloroformic fraction, which showed only 6 out of 12 standard compounds used...
July 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28738518/teucrium-polium-extract-reverses-symptoms-of-streptozotocin-induced-diabetes-in-rats-via-rebalancing-the-pdx1-and-foxo1-expressions
#2
Parvaneh Sadat Tabatabaie, Razieh Yazdanparast
BACKGROUND AND OBJECTIVE: Teucrium polium Lamiaceae. an antidiabetic traditional medicine was observed to stimulate insulin secretion and β-cell mass restoration in pancreatic of diabetic rats. Bioactive compounds in T. polium such as terpenoids and flavonoids have a wide range of antioxidant properties. Given this background, our research was aimed at probing the effective molecular mechanism of T. polium which in turn protects the pancreatic β-cells of diabetic rats through attenuation of streptozotocin-induced oxidative stress...
July 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28737913/uplc-q-exactive-orbitrap-ms-based-lipidomics-approach-to-characterize-lipid-extracts-from-bee-pollen-and-their-in-vitro-anti-inflammatory-properties
#3
Qiangqiang Li, Xinwen Liang, Liang Zhao, Zhongyin Zhang, Xiaofeng Xue, Kai Wang, Liming Wu
Bee pollen (BP) is collected by honeybees from flower pollen mixed with nectar and its secretions, with extensive nutritional and therapeutic properties. Lipids are known to be critical contributors for the therapeutic effects of BP and vary depending on different plant sources; however, lipid profiles of BP are not available. Here, an UPLC-Q-Exactive Orbitrap/MS method was established for comprehensive lipidomics analysis of BP derived from three major nectar plants (Brassica campestris L., Camellia sinensis L...
July 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28736051/leachate-pollution-index-as-an-effective-tool-in-determining-the-phytotoxicity-of-municipal-solid-waste-leachate
#4
V Arunbabu, K S Indu, E V Ramasamy
Phytoremediation is a promising option for the treatment of municipal solid waste leachate. Combining the leachate pollution index with the phytotoxicity data will be useful in predicting the suitable concentration of leachate for the phytoremediation applications. Understanding the tolerant mechanisms of plants to leachate stress will further help to select the appropriate dose. The aim of the study was to investigate the effect of different concentrations of leachate on germination, growth, chlorophyll content and antioxidant enzyme activities in the plant Vigna unguiculata...
July 20, 2017: Waste Management
https://www.readbyqxmd.com/read/28735405/profiling-abscisic-acid-induced-changes-in-fatty-acid-composition-in-mosses
#5
Suhas Shinde, Shivakumar Devaiah, Aruna Kilaru
In plants, change in lipid composition is a common response to various abiotic stresses. Lipid constituents of bryophytes are of particular interest as they differ from that of flowering plants. Unlike higher plants, mosses have high content of very long-chain polyunsaturated fatty acids. Such lipids are considered to be important for survival of nonvascular plants. Here, using abscisic acid (ABA )-induced changes in lipid composition in Physcomitrella patens as an example, a protocol for total lipid extraction and quantification by gas chromatography (GC) coupled with flame ionization detector (FID) is described...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28735403/determining-glutathione-levels-in-plants
#6
Smita Sahoo, Jay Prakash Awasthi, Ramanjulu Sunkar, Sanjib Kumar Panda
Upon exposure to abiotic stresses, plants tend to accumulate excessive amounts of reactive oxygen species (ROS) that inturn react with cellular lipids, proteins, and DNA. Therefore, decreasing ROS accumulation is indispensible to survive under stress, which is accomplished by inducing enzymatic and nonenzymatic antioxidant defense pathways. Glutathione, particularly reduced glutathione (GSH), represents a principal anitioxidant that could decrease ROS through scavenging them directly or indirectly through ascorbate-glutathione cycle or GSH peroxidases...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28735356/evaluation-of-anthelmintic-antimicrobial-and-antioxidant-activity-of-chenopodium-album
#7
Bashir A Lone, M Z Chishti, Fayaz Ahmad Bhat, Hidayatullah Tak, Suhaib A Bandh, Abida Khan
The objective of this study was to evaluate the anthelmintic, antimicrobial and antioxidant activities of Chenopodium album against gastrointestinal nematodes of sheep and some pathogenic microbes. A worm motility inhibition assay was used for in vitro study, and a faecal egg count reduction assay was used for an in vivo study. Various concentrations ranging from 100 to 500 μg/ml of the extract were subjected to antimicrobial screening by disc diffusion method against four selected bacterial (Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas multocida and Escherichia coli) and two fungal (Aspergillus flavus and Candida albicans) strains in order to estimate the medicinal potential of the herb...
July 22, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28734036/-epicatechin-regulates-blood-lipids-and-attenuates-hepatic-steatosis-in-rats-fed-high-fat-diet-%C3%A2
#8
Hui Cheng, Na Xu, Wenxia Zhao, Jingjing Su, Mengru Liang, Zhongwen Xie, Xianli Wu, Qinglin Li
SCOPE: (-)-Epicatechin (EC) is a natural flavanol monomer found in cocoa, green tea and a variety of other plant foods. In this study, effects of EC on blood lipids and hepatic steatosis, and the underlying mechanisms were investigated. METHODS AND RESULTS: A hyperlipidemic rat model was induced by high-fat, high-cholesterol diet. EC was then administrated to the animals by gavage at doses of 10 mg/kg, 20 mg/kg, 40 mg/kg body weight (BW) for 12 weeks. Simvastatin was included as a positive control...
July 21, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28733762/reconsidering-betaine-as-a-natural-anti-heat-stress-agent-in-poultry-industry-a-review
#9
REVIEW
Muhammad Saeed, Daryoush Babazadeh, Muhammad Naveed, Muhammad Asif Arain, Faiz Ul Hassan, Sun Chao
Betaine is found ubiquitously in plants, animals, microorganisms, and rich dietary sources including seafood, spinach, and wheat bran. The chief physiological role of betaine is to function as a methyl donor and an osmolyte. Betaine also acts as an osmolyte, to maintain the avian's cellular water and ion balance to improve the avian's capacity against heat stress via preventing dehydration and osmotic inactivation. It helps in maintaining the protective osmolytic activity, especially in heat-stressed birds...
July 21, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28733391/diacylglycerol-acyltransferase-mediated-triacylglyerol-synthesis-augments-basal-thermotolerance
#10
Stephanie P Mueller, Melissa Unger, Lena Guender, Agnes Fekete, Martin J Mueller
High temperatures rapidly induce a genetically programmed heat shock response (HSR) that is essential to establish short-term acquired thermotolerance. In addition, an immediate HSR-independent metabolic response is triggered resulting in an accumulation of unsaturated triacylglycerols (TAGs) in the cytosol. The metabolic processes involved in heat-induced TAG formation in plants and their physiological significance remain to be clarified. Lipidomic analyses of Arabidopsis thaliana seedlings indicated that during heat stress polyunsaturated fatty acids from thylakoid galactolipids are incorporated into cytosolic TAGs...
July 21, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28732263/proteomic-analysis-of-naturally-occurring-boron-tolerant-plant-gypsophila-sphaerocephala-l-in-response-to-high-boron-concentration
#11
Huseyin Tombuloglu, Guzin Tombuloglu, Mehmet Serdal Sakcali, Ali Turkan, Khalid Rehman Hakeem, Hesham F Alharby, Shah Fahd, Waseem Mohammed Abdul
Gypsophila sphaerocephala is a naturally Boron (B) tolerant species that can grow around the B mining areas in Turkey, where the B concentration in soil reaches a lethal dose for plants (up to ∼8900mgkg(-1) (∼140mM). While its interesting survival capacity in extremely B containing soils, any molecular research has been conducted to understand its high tolerance mechanism yet. In the present study, we have performed a proteomic analysis of this plant to understand its high tolerance towards B-stress. Seedlings of G...
July 4, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28731703/natural-poly-and-oligosaccharides-as-novel-delivery-systems-for-plant-protection-compounds
#12
Olga Selyutina, Irina Apanasenko, Salavat Khalikov, Nikolay E Polyakov
To increase the bioavailability of plant protection products we have applied new approach based on non-covalent association with natural water soluble polysaccharides and oligosaccharides as delivery systems (DSs). The mechanochemical technique has been applied to prepare the solid state nano-dispersed compositions of antidote 1,8-naphthalic anhydride (NA) with arabinogalactan, sodium salt of carboxymethylcellulose, and glycyrrhizin as DSs. The effect of DSs on the solubility and the penetration of NA into the seeds of barley and wheat has been investigated by various physicochemical techniques...
July 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28729959/shot-gun-proteome-and-transcriptome-mapping-of-the-jujube-floral-organ-and-identification-of-a-pollen-specific-s-locus-f-box-gene
#13
Ruihong Chen, Guoliang Chen, Jian Huang
The flower is a plant reproductive organ that forms part of the fruit produced as the flowering season ends. While the number and identity of proteins expressed in a jujube (Ziziphus jujuba Mill.) flower is currently unknown, integrative proteomic and transcriptomic analyses provide a systematic strategy of characterizing the floral biology of plants. We conducted a shotgun proteomic analysis on jujube flowers by using a filter-aided sample preparation tryptic digestion, followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS)...
2017: PeerJ
https://www.readbyqxmd.com/read/28728593/high-throughput-sequencing-of-small-rnas-reveals-dynamic-micrornas-expression-of-lipid-metabolism-during-camellia-oleifera-and-c-meiocarpa-seed-natural-drying
#14
Jin-Ling Feng, Zhi-Jian Yang, Shi-Pin Chen, Yousry A El-Kassaby, Hui Chen
BACKGROUND: Camellia species are ancient oilseed plants with a history of cultivation over two thousand years. Prior to oil extraction, natural seed drying is often practiced, a process affecting fatty acid quality and quantity. MicroRNAs (miRNA) of lipid metabolism associated with camellia seed natural drying are unexplored. To obtain insight into the function of miRNAs in lipid metabolism during natural drying, Illumina sequencing of C. oleifera and C. meiocarpa small-RNA was conducted...
July 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28726934/clove-extract-functions-as-a-natural-fatty-acid-synthesis-inhibitor-and-prevents-obesity-in-a-mouse-model
#15
Yiran Ding, Zhennan Gu, Yihe Wang, Shunhe Wang, Haiqin Chen, Hao Zhang, Wei Chen, Yong Q Chen
Numerous medicinal plants have been reported to prevent various chronic diseases. In this study, we screened a new FASN inhibitor-alcohol extract of clove (AEC) using a fast microplate method developed in our laboratory. The major components of AEC were: eugenol (42.27%), acetyl eugenol (29.12%), caryophyllene (15.40%), and humulene (3.22%). Fatty acid synthase (FASN) is a key enzyme for de novo lipogenesis, and it has been suggested as a potential therapeutic target in cancer and obesity. We have tested the ability of AEC to inhibit FASN in mammalian cells and tissues...
July 20, 2017: Food & Function
https://www.readbyqxmd.com/read/28726631/lipid-transfer-from-plants-to-arbuscular-mycorrhiza-fungi
#16
Andreas Keymer, Priya Pimprikar, Vera Wewer, Claudia Huber, Mathias Brands, Simone L Bucerius, Pierre-Marc Delaux, Verena Klingl, Edda von Röpenack-Lahaye, Trevor L Wang, Wolfgang Eisenreich, Peter Dörmann, Martin Parniske, Caroline Gutjahr
Arbuscular mycorrhiza (AM) symbioses contribute to global carbon cycles as plant hosts divert up to 20% of photosynthate to the obligate biotrophic fungi. Previous studies suggested carbohydrates as the only form of carbon transferred to the fungi. However, de novo fatty acid (FA) synthesis has not been observed in AM fungi in absence of the plant. In a forward genetic approach, we identified two Lotus japonicus mutants defective in AM-specific paralogs of lipid biosynthesis genes (KASI and GPAT6). These mutants perturb fungal development and accumulation of emblematic fungal 16:1ω5 FAs...
July 20, 2017: ELife
https://www.readbyqxmd.com/read/28725961/the-plasma-membrane-proteome-of-medicago-truncatula-roots-as-modified-by-arbuscular-mycorrhizal-symbiosis
#17
Achref Aloui, Ghislaine Recorbet, Christelle Lemaître-Guillier, Arnaud Mounier, Thierry Balliau, Michel Zivy, Daniel Wipf, Eliane Dumas-Gaudot
In arbuscular mycorrhizal (AM) roots, the plasma membrane (PM) of the host plant is involved in all developmental stages of the symbiotic interaction, from initial recognition to intracellular accommodation of intra-radical hyphae and arbuscules. Although the role of the PM as the agent for cellular morphogenesis and nutrient exchange is especially accentuated in endosymbiosis, very little is known regarding the PM protein composition of mycorrhizal roots. To obtain a global overview at the proteome level of the host PM proteins as modified by symbiosis, we performed a comparative protein profiling of PM fractions from Medicago truncatula roots either inoculated or not with the AM fungus Rhizophagus irregularis...
July 19, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28725267/heterologous-co-expression-of-a-yeast-diacylglycerol-acyltransferase-scdga1-and-a-plant-oleosin-atoleo3-as-an-efficient-tool-for-enhancing-triacylglycerol-accumulation-in-the-marine-diatom-phaeodactylum-tricornutum
#18
Nodumo Nokulunga Zulu, Jennifer Popko, Krzysztof Zienkiewicz, Pablo Tarazona, Cornelia Herrfurth, Ivo Feussner
BACKGROUND: Microalgae are promising alternate and renewable sources for producing valuable products such as biofuel and essential fatty acids. Although this is the case, there are still challenges impeding on the effective commercial production of microalgal products. For instance, their product yield is still too low. Therefore, this study was oriented towards enhancing triacylglycerol (TAG) accumulation in the diatom Phaeodactylum tricornutum (strain Pt4). To achieve this, a type 2 acyl-CoA:diacylglycerol acyltransferase from yeast (ScDGA1) and the lipid droplet (LD) stabilizing oleosin protein 3 from Arabidopsis thaliana (AtOLEO3) were expressed in Pt4...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28725265/two-bifunctional-enzymes-from-the-marine-protist-thraustochytrium-roseum-biochemical-characterization-of-wax-ester-synthase-acyl-coa-diacylglycerol-acyltransferase-activity-catalyzing-wax-ester-and-triacylglycerol-synthesis
#19
Nannan Zhang, Zejing Mao, Ling Luo, Xia Wan, Fenghong Huang, Yangmin Gong
BACKGROUND: Triacylglycerols (TAGs) and wax esters (WEs) are important neutral lipids which serve as energy reservoir in some plants and microorganisms. In recent years, these biologically produced neutral lipids have been regarded as potential alternative energy sources for biofuel production because of the increased interest on developing renewable and environmentally benign alternatives for fossil fuels. In bacteria, the final step in TAG and WE biosynthetic pathway is catalyzed by wax ester synthase/acyl coenzyme A (acyl-CoA):diacylglycerol acyltransferase (WS/DGAT)...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28720840/positioning-of-the-scrambled-receptor-requires-udp-glc-sterol-glucosyltransferase-80b1-in-arabidopsis-roots
#20
Victoria G Pook, Meera Nair, KookHui Ryu, James C Arpin, John Schiefelbein, Kathrin Schrick, Seth DeBolt
The biological function of sterol glucosides (SGs), the most abundant sterol derivatives in higher plants, remains uncertain. In an effort to improve our understanding of these membrane lipids we examined phenotypes exhibited by the roots of Arabidopsis (Arabidopsis thaliana) lines carrying insertions in the UDP-Glc:sterol glucosyltransferase genes, UGT80A2 and UGT80B1. We show that although ugt80A2 mutants exhibit significantly lower levels of total SGs they are morphologically indistinguishable from wild-type plants...
July 18, 2017: Scientific Reports
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