keyword
MENU ▼
Read by QxMD icon Read
search

oleaginous

keyword
https://www.readbyqxmd.com/read/28074427/erratum-to-functional-identification-and-regulatory-analysis-of-%C3%AE-6-fatty-acid-desaturase-from-the-oleaginous-fungus-mucor-sp-eim-10
#1
Xianzhang Jiang, Hongjiao Liu, Yongchao Niu, Feng Qi, Mingliang Zhang, Jianzhong Huang
No abstract text is available yet for this article.
January 10, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28060946/high-osmolarity-environments-activate-the-mitochondrial-alternative-oxidase-in-debaryomyces-hansenii
#2
Wilson Garcia-Neto, Alfredo Cabrera-Orefice, Salvador Uribe-Carvajal, Alicia J Kowaltowski, Luis Alberto Luévano-Martínez
The oleaginous yeast Debaryomyces hansenii is a good model to understand molecular mechanisms involved in halotolerance because of its impressive ability to survive under a wide range of salt concentrations. Several cellular adaptations are implicated in this response, including the presence of a cyanide-insensitive ubiquinol oxidase (Aox). This protein, which is present in several taxonomical orders, has been related to different stress responses. However, little is known about its role in mitochondria during transitions from low to high saline environments...
2017: PloS One
https://www.readbyqxmd.com/read/28054991/green-sonoextraction-of-protein-from-oleaginous-press-rapeseed-cake
#3
Meryem Boukroufa, Anne-Gaëlle Sicaire, Frederic Fine, Colette Larré, Aude Le Goff, Véronique Solé Jamault, Njara Rakotomanomana, Farid Chemat
In this study, extraction of soluble proteins from rapeseed cake using different conventional and innovative extraction processes in order to maximize the extraction yield has been investigated. Firstly, various extraction techniques including ultrasound, microwave, and percolation were tested to increase the protein recovery efficiency. Secondly, response surface methodology (RSM) using a central composite design (CCD) approach was applied to investigate the influence of process variables on ultrasound-assisted extraction (UAE)...
January 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28028018/ontogenesis-and-functions-of-saxophone-stem-in-acrocomia-aculeata-arecaceae
#4
Joyce Nascimento E Souza, Leonardo Monteiro Ribeiro, Maria Olívia Mercadante-Simões
BACKGROUND AND AIMS: The underground saxophone stem systems produced by seedlings of certain palm species show peculiar growth patterns and distinctive morphologies, although little information is available concerning their development and function. We studied the ontogenesis of the saxophone stem in Acrocomia aculeata, an important neotropical oleaginous palm, and sought to experimentally define its function. METHODS: Morpho-anatomical evaluations were performed during 240 d on seedlings using traditional methodologies...
December 27, 2016: Annals of Botany
https://www.readbyqxmd.com/read/28018484/mechanistic-insights-into-the-effect-of-imidazolium-ionic-liquid-on-lipid-production-by-geotrichum-fermentans
#5
Li-Ping Liu, Min-Hua Zong, Robert J Linhardt, Wen-Yong Lou, Ning Li, Chao Huang, Hong Wu
BACKGROUND: Ionic liquid (IL) pretreatment has emerged as a promising technique that enables complete utilization of lignocellulosic biomass for biofuel production. However, imidazolium IL has recently been shown to exhibit inhibitory effect on cell growth and product formation of industrial microbes, such as oleaginous microorganisms. To date, the mechanism of this inhibition remains largely unknown. RESULTS: In this study, the feasibility of [Bmim][OAc]-pretreated rice straw hydrolysate as a substrate for microbial lipid production by Geotrichum fermentans, also known as Trichosporon fermentans, was evaluated...
2016: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28012044/a-survey-of-yeast-from-the-yarrowia-clade-for-lipid-production-in-dilute-acid-pretreated-lignocellulosic-biomass-hydrolysate
#6
Josh Quarterman, Patricia J Slininger, Cletus P Kurtzman, Stephanie R Thompson, Bruce S Dien
Yarrowia lipolytica is an oleaginous yeast species that has attracted attention as a model organism for synthesis of single cell oil. Among over 50 isolates of Y. lipolytica identified, only a few of the strains have been studied extensively. Furthermore, 12 other yeast species were recently assigned to the Yarrowia clade, and most are not well characterized in terms of cell growth and lipid accumulation, especially in industrially relevant conditions. In the present study, we investigated biomass and lipid production by 57 yeast isolates, representing all 13 species in the Yarrowia clade, on a non-detoxified dilute acid-pretreated switchgrass hydrolysate under highly aerobic conditions...
December 23, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27988906/functional-identification-and-regulatory-analysis-of-%C3%AE-6-fatty-acid-desaturase-from-the-oleaginous-fungus-mucor-sp-eim-10
#7
Xianzhang Jiang, Hongjiao Liu, Yongchao Niu, Feng Qi, Mingliang Zhang, Jianzhong Huang
OBJECTIVES: To enlarge the diversity of the desaturases associated with PUFA biosynthesis and to better understand the transcriptional regulation of desaturases, a Δ(6)-desaturase gene (Md6) from Mucor sp. and its 5'-upstream sequence was functionally identified in Saccharomyces cerevisiae. RESULTS: Expression of the Δ(6)-fatty acid desaturase (Md6) in S. cerevisiae showed that Md6 could convert linolenic acid to γ-linolenic acid. Computational analysis of the promoter of Md6 suggested it contains several eukaryotic fundamental transcription regulatory elements...
December 17, 2016: Biotechnology Letters
https://www.readbyqxmd.com/read/27988854/use-of-crude-glycerol-as-sole-carbon-source-for-microbial-lipid-production-by-oleaginous-yeasts
#8
Li-Ping Liu, Yang Hu, Wen-Yong Lou, Ning Li, Hong Wu, Min-Hua Zong
Crude glycerol, discharged from biodiesel production process, is a potential carbon source for microbial lipid production. The capability of using crude glycerol as sole carbon source for microbial lipid production by oleaginous yeasts Trichosporon fermentans and Trichosporon cutaneum was investigated for the first time. T. fermentans and T. cutaneum could use crude glycerol for efficient lipid production, and the optimal glycerol concentration for which were 50 and 70 g/L, respectively. The optimum nitrogen source, C/N, inoculum concentration, and pH were yeast extract + peptone, 60, 10...
December 17, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27969576/isolation-identification-and-characterization-of-cystobasidium-oligophagum-jrc1-a-cellulase-and-lipase-producing-oleaginous-yeast
#9
Sachin Vyas, Meenu Chhabra
Oleaginous yeast closely related to Cystobasidium oligophagum was isolated from soil rich in cellulosic waste. The yeast was isolated based on its ability to accumulate intracellular lipid, grow on carboxymethylcellulose (CMC) and produce lipase. It could accumulate up to 39.44% lipid in a glucose medium (12.45±0.97g/l biomass production). It was able to grow and accumulate lipids (36.46%) in the medium containing CMC as the sole carbon source. The specific enzyme activities obtained for endoglucanase, exoglucanase, and β-glucosidase were 2...
October 15, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27956601/lipid-metabolic-changes-in-an-early-divergent-fungus-govern-the-establishment-of-a-mutualistic-symbiosis-with-endobacteria
#10
Olga A Lastovetsky, Maria L Gaspar, Stephen J Mondo, Kurt M LaButti, Laura Sandor, Igor V Grigoriev, Susan A Henry, Teresa E Pawlowska
The recent accumulation of newly discovered fungal-bacterial mutualisms challenges the paradigm that fungi and bacteria are natural antagonists. To understand the mechanisms that govern the establishment and maintenance over evolutionary time of mutualisms between fungi and bacteria, we studied a symbiosis of the fungus Rhizopus microsporus (Mucoromycotina) and its Burkholderia endobacteria. We found that nonhost R. microsporus, as well as other mucoralean fungi, interact antagonistically with endobacteria derived from the host and are not invaded by them...
December 27, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27933101/study-of-holtermanniella-wattica-leucosporidium-creatinivorum-naganishia-adeliensis-solicoccozyma-aeria-and-solicoccozyma-terricola-for-their-lipogenic-aptitude-from-different-carbon-sources
#11
Sara Filippucci, Giorgia Tasselli, Alessandro Scardua, Simone Di Mauro, Maria Rita Cramarossa, Davide Perini, Benedetta Turchetti, Andrea Onofri, Luca Forti, Pietro Buzzini
BACKGROUND: The ability of some microorganisms to accumulate lipids is well known; however, only recently the number of studies on microbial lipid biosynthesis for obtaining oleochemical products, namely biofuels and some building blocks for chemistry, is rapidly and spectacularly increased. Since 1990s, some oleaginous yeasts were studied for their ability to accumulate lipids up to 60-70% of their dry weight. Due to the vast array of engineering techniques currently available, the recombinant DNA technology was the main approach followed so far for obtaining lipid-overproducing yeasts, mainly belonging to the Yarrowia lipolytica...
2016: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/27933100/genome-and-methylome-of-the-oleaginous-diatom-cyclotella-cryptica-reveal-genetic-flexibility-toward-a-high-lipid-phenotype
#12
Jesse C Traller, Shawn J Cokus, David A Lopez, Olga Gaidarenko, Sarah R Smith, John P McCrow, Sean D Gallaher, Sheila Podell, Michael Thompson, Orna Cook, Marco Morselli, Artur Jaroszewicz, Eric E Allen, Andrew E Allen, Sabeeha S Merchant, Matteo Pellegrini, Mark Hildebrand
BACKGROUND: Improvement in the performance of eukaryotic microalgae for biofuel and bioproduct production is largely dependent on characterization of metabolic mechanisms within the cell. The marine diatom Cyclotella cryptica, which was originally identified in the Aquatic Species Program, is a promising strain of microalgae for large-scale production of biofuel and bioproducts, such as omega-3 fatty acids. RESULTS: We sequenced the nuclear genome and methylome of this oleaginous diatom to identify the genetic traits that enable substantial accumulation of triacylglycerol...
2016: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/27928143/degradation-of-distillery-lees-shochu-kasu-by-cellulase-producing-thraustochytrids
#13
Yousuke Taoka, Naoki Nagano, Hiroyuki Kai, Masahiro Hayashi
Single cell oils produced by oleaginous microorganisms have attracted increasing interests as a petroleum alternative energy. Marine eukaryotes, thraustochytrids were heterotrophic, and can grow rapidly and accumulate large amount of lipids containing functional fatty acids, such as docosahexaenoic acid (DHA) in their cells body. In this investigation, thraustochytrids isolated from marine environment were cultured in the medium containing an industrial waste and an unused resource, distillery lees (Shochu kasu) to produce biofuel or functional fatty acids by microorganisms...
December 8, 2016: Journal of Oleo Science
https://www.readbyqxmd.com/read/27919272/enhanced-lipid-and-biomass-production-by-a-newly-isolated-and-identified-marine-microalga
#14
Mouna Dammak, Sandra Mareike Haase, Ramzi Miladi, Faten Ben Amor, Mohamed Barkallah, David Gosset, Chantal Pichon, Bernhard Huchzermeyer, Imen Fendri, Michel Denis, Slim Abdelkafi
BACKGROUND: The increasing demand for microalgae lipids as an alternative to fish has encouraged researchers to explore oleaginous microalgae for food uses. In this context, optimization of growth and lipid production by the marine oleaginous V2-strain-microalgae is of great interest as it contains large amounts of mono-unsaturated (MUFAs) and poly-unsaturated fatty acids (PUFAs). METHODS: In this study, the isolated V2 strain was identified based on 23S rRNA gene...
December 5, 2016: Lipids in Health and Disease
https://www.readbyqxmd.com/read/27895203/a-palmitic-acid-elongase-affects-eicosapentaenoic-acid-and-plastidial-monogalactosyldiacylglycerol-levels-in-nannochloropsis
#15
Lina-Juana Dolch, Camille Rak, Giorgio Perin, Guillaume Tourcier, Richard Broughton, Marina Leterrier, Tomas Morosinotto, Frédérique Tellier, Jean-Denis Faure, Denis Falconet, Juliette Jouhet, Olga Sayanova, Frédéric Beaudoin, Eric Maréchal
Nannochloropsis species are oleaginous eukaryotes containing a plastid limited by four membranes, deriving from a secondary endosymbiosis. In Nannochloropsis, thylakoid lipids, including monogalactosyldiacylglycerol (MGDG), are enriched in eicosapentaenoic acid (EPA). The need for EPA in MGDG is not understood. Fatty acids are de novo synthesized in the stroma, then converted into very-long-chain polyunsaturated fatty acids (FAs) at the endoplasmic reticulum (ER). The production of MGDG relies therefore on an EPA supply from the ER to the plastid, following an unknown process...
2017: Plant Physiology
https://www.readbyqxmd.com/read/27887615/developing-a-set-of-strong-intronic-promoters-for-robust-metabolic-engineering-in-oleaginous-rhodotorula-rhodosporidium-yeast-species
#16
Yanbin Liu, Sihui Amy Yap, Chong Mei John Koh, Lianghui Ji
BACKGROUND: Red yeast species in the Rhodotorula/Rhodosporidium genus are outstanding producers of triacylglyceride and cell biomass. Metabolic engineering is expected to further enhance the productivity and versatility of these hosts for the production of biobased chemicals and fuels. Promoters with strong activity during oil-accumulation stage are critical tools for metabolic engineering of these oleaginous yeasts. RESULTS: The upstream DNA sequences of 6 genes involved in lipid biosynthesis or accumulation in Rhodotorula toruloides were studied by luciferase reporter assay...
November 25, 2016: Microbial Cell Factories
https://www.readbyqxmd.com/read/27885443/roles-of-the-haustorium-and-endosperm-during-the-development-of-seedlings-of-acrocomia-aculeata-arecaceae-dynamics-of-reserve-mobilization-and-accumulation
#17
Hellen Cássia Mazzottini-Dos-Santos, Leonardo Monteiro Ribeiro, Denise Maria Trombert Oliveira
The mobilization of palm seed reserves is a complex process because of the abundance and diversity of stored compounds and results from the development of a highly specialized haustorium. This work focused on the important Neotropical oleaginous palm Acrocomia aculeata, with the aim of defining phases of seedling development associated with mobilization of reserves and elucidating the role of haustorium and endosperm in this process. Standard methods were performed, including biometric, anatomical, and histochemical analyses, as well as the evaluation of the activities of the enzymes endo-β-mannanase and lipase, throughout the reserve mobilization in seeds during germination and in seedlings...
November 24, 2016: Protoplasma
https://www.readbyqxmd.com/read/27866805/detergent-assisted-ultrasonication-aided-in-situ-transesterification-for-biodiesel-production-from-oleaginous-yeast-wet-biomass
#18
Sravan Kumar Yellapu, Rajwinder Kaur, Rajeshwar D Tyagi
In situ transesterification of oleaginous yeast wet biomass for fatty acid methyl esters (FAMEs) production using acid catalyst, methanol with or without N-Lauroyl sarcosine (N-LS) treatment was performed. The maximum FAMEs yield obtained with or without N-LS treatment in 24h reaction time was 96.1±1.9 and 71±1.4% w/w, respectively. The N-LS treatment of biomass followed by with or without ultrasonication revealed maximum FAMEs yield of 94.3±1.9% and 82.9±1.8% w/w using methanol to lipid molar ratio 360:1 and catalyst concentration 360mM (64μL H2SO4/g lipid) within 5 and 25min reaction time, respectively...
January 2017: Bioresource Technology
https://www.readbyqxmd.com/read/27849022/nitrogen-induced-metabolic-changes-and-molecular-determinants-of-carbon-allocation-in-dunaliella-tertiolecta
#19
Kenneth Wei Min Tan, Huixin Lin, Hui Shen, Yuan Kun Lee
Certain species of microalgae are natural accumulators of lipids, while others are more inclined to store starch. However, what governs the preference to store lipids or starch is not well understood. In this study, the microalga Dunaliella tertiolecta was used as a model to study the global gene expression profile regulating starch accumulation in microalgae. D. tertiolecta, when depleted of nitrogen, produced only 1% of dry cell weight (DCW) in neutral lipids, while starch was rapidly accumulated up to 46% DCW...
November 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27837088/membrane-proteomic-insights-into-the-physiology-and-taxonomy-of-an-oleaginous-green-microalga
#20
Adriana Garibay-Hernández, Bronwyn J Barkla, Rosario Vera-Estrella, Alfredo Martinez, Omar Pantoja
Ettlia oleoabundans is a nonsequenced oleaginous green microalga. Despite the significant biotechnological interest in producing value-added compounds from the acyl lipids of this microalga, a basic understanding of the physiology and biochemistry of oleaginous microalgae is lacking, especially under nitrogen deprivation conditions known to trigger lipid accumulation. Using an RNA sequencing-based proteomics approach together with manual annotation, we are able to provide, to our knowledge, the first membrane proteome of an oleaginous microalga...
January 2017: Plant Physiology
keyword
keyword
74421
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"