Read by QxMD icon Read

nutrient requirements

Kylie Zirbel, Bradley Eastmond, Barry W Alto
The environmental conditions experienced by parents can influence offspring phenotype along with the conditions experienced by offspring. These parental effects are clear in organisms that display parental care and are less clear in other organisms. Here, we consider effects of parental and offspring larval nutrition on offspring development time, survivorship and infection with dengue virus in Aedes aegypti , the mosquito vector of dengue, chikungunya, yellow fever and Zika. Parents were raised on either high or low larval detritus inputs with subsequent offspring being divided into two groups, one receiving high nutrients and the other low...
July 2018: Royal Society Open Science
Adnane Bargaz, Karim Lyamlouli, Mohamed Chtouki, Youssef Zeroual, Driss Dhiba
Tomorrow's agriculture, challenged by increasing global demand for food, scarcity of arable lands, and resources alongside multiple environment pressures, needs to be managed smartly through sustainable and eco-efficient approaches. Modern agriculture has to be more productive, sustainable, and environmentally friendly. While macronutrients such as nitrogen (N), phosphorus (P), potassium (K), and sulfur (S) supplied by mineral fertilizers are vital to crop production, agriculturally beneficial microorganisms may also contribute directly (i...
2018: Frontiers in Microbiology
Alastair F Smith, Branko Rihtman, Rachel Stirrup, Eleonora Silvano, Michaela A Mausz, David J Scanlan, Yin Chen
Marine microorganisms employ multiple strategies to cope with transient and persistent nutrient limitation, one of which, for alleviating phosphorus (P) stress, is to substitute membrane glycerophospholipids with non-P containing surrogate lipids. Such a membrane lipid remodelling strategy enables the most abundant marine phytoplankton and heterotrophic bacteria to adapt successfully to nutrient scarcity in marine surface waters. An important group of non-P lipids, the aminolipids which lack a diacylglycerol backbone, are poorly studied in marine microbes...
August 14, 2018: ISME Journal
Caleb O Lemley, Caitlin G Hart, Racheal L Lemire, E Heath King, Richard M Hopper, Seong B Park, Brian J Rude, Derris D Burnett
The objective was to examine uterine artery blood flow (UBF) as well as macroscopic and microscopic placentome vascular density in nutrient restricted Angus and Brahman heifers. Angus (n = 6) and Brahman (n = 6) heifers were bred to a single sire and pregnancy confirmed at 30 days post-breeding. Heifers were randomly assigned to one of two dietary treatments consisting of 100% (control fed; CON; n = 6) or 60% (total nutrient restricted; RES; n = 6) based from net energy requirements for gestating heifers. Nutritional treatments were imposed from day 50 to 180 of gestation...
August 13, 2018: Journal of Animal Science
Angela Bechthold, Heiner Boeing, Inge Tetens, Lukas Schwingshackl, Ute Nöthlings
Food-based dietary guidelines (FBDGs) are important tools for nutrition policies and public health. FBDGs provide guidelines on healthy food consumption and are based on scientific evidence. In the past, disease prevention and nutrient recommendations dominated the process of establishing FBDGs. However, scientific advances and social developments such as changing lifestyles, interest in personalized health, and concerns about sustainability require a reorientation of the creation of FBDGs to include a wider range of aspects of dietary behavior...
August 11, 2018: Advances in Nutrition
Matthew W Fraser, Deirdre B Gleeson, Pauline F Grierson, Bonnie Laverock, Gary A Kendrick
Sediment microorganisms can have profound influence on productivity and functioning of marine ecosystems through their critical roles in regulating biogeochemical processes. However, the identity of sediment microorganisms that mediate organic matter turnover and nutrient cycling in seagrass sediments is only poorly understood. Here, we used metagenomic sequencing to investigate shifts in the structure and functioning of the microbial community of seagrass sediments across a salinity and phosphorus (P) availability gradient in Shark Bay, WA, Australia...
2018: Frontiers in Microbiology
Silke C Gerlich, Berkley J Walker, Stephan Krueger, Stanislav Kopriva
The evolution of C4 photosynthesis led to an increase in carbon assimilation rates and plant growth compared to C3 photosynthetic plants. This enhanced plant growth, in turn, affected the requirement for soil-derived mineral nutrients. However, mineral plant nutrition has scarcely been considered in connection with C4 photosynthesis. Sulfur is crucial for plant growth and development, and preliminary studies in the genus Flaveria suggested metabolic differences in sulfate assimilation along the C4 evolutionary trajectory...
August 13, 2018: Plant Physiology
Gabriela Añorve-Valdez, Amado David Quezada-Sánchez, Fabiola Mejía-Rodríguez, Armando García-Guerra, Lynnette Marie Neufeld
BACKGROUND: Nutritional supplements are an important source of complementary food for young children, since they may either complement or substitute nutrients obtained from other food sources. Assessing how the introduction of different types of supplements modifies the consumption of other food sources may help in designing supplementation programs that aim to improve the nutrition of vulnerable populations. The objetive is to quantify dietary energy and nutrient intake among children aged 6-12 months who received one of three nutritional supplements...
August 13, 2018: Nutrition Journal
Amy Kolb, Friedhelm Hildebrandt, Christian Lawrence
Zebrafish (Danio rerio) have proven their efficiency as an animal model for genetics and development, but their nutrition and housing requirements continue to elude researchers. Diet and housing density were predicted to affect weight change and reproductive success in 120 days postfertilization (dpf) zebrafish, and growth performance of their progeny. Fish were fed one of four diets, each utilizing a different primary protein source (fish meal [Zeigler™], algae, or insect), while being housed 3.3 or 6.6 fish/L for 3 weeks...
August 13, 2018: Zebrafish
Andrés Felipe Torres Franco, Scarlet da Encarnação Araújo, Fabiana Passos, Carlos Augusto de Lemos Chernicharo, César Rossas Mota Filho, Cleber Cunha Figueredo
Anaerobic digestion of food wastes coupled with digestate post-treatment using microalgae-based systems could recover large amounts of energy and nutrients worldwide. However, the development of full-scale implementations requires overcoming microalgae inhibition by high ammonia concentrations and low light transmittances affecting photosynthesis. This study evaluated the potential of microalgae-based reactors supplied with red light-emitting diodes (LEDs) at low intensity (660 nm and 15 µmol·m-2 ·s-1 ) to treat food waste digestate...
August 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
Enrica Uggetti, Joan García, Juan Antonio Álvarez, María Jesús García-Galán
Within the European project INCOVER, an experimental microalgae-based treatment system has been built for wastewater reuse and added-value products generation. This article describes this new experimental plant and the start-up stage, starting from the new design of three semi-closed horizontal photobioreactors with low energy requirements for microalgae cultivation (30 m3 total), using agricultural runoff and urban wastewater as feedstock. The inflow nutrients concentration is adjusted to select cyanobacteria, microalgae able to accumulate polyhydroxybutyrates, which can be used for bioplastics production...
August 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
James A Chamberlain, Pierre-Antoine Dugué, Julie K Bassett, Allison M Hodge, Maree T Brinkman, JiHoon E Joo, Chol-Hee Jung, Enes Makalic, Daniel F Schmidt, John L Hopper, Daniel D Buchanan, Dallas R English, Melissa C Southey, Graham G Giles, Roger L Milne
Background: Folate and other one-carbon metabolism nutrients are essential to enable DNA methylation to occur, but the extent to which their dietary intake influences methylation in adulthood is unclear. Objective: We assessed associations between dietary intake of these nutrients and DNA methylation in peripheral blood, overall and at specific genomic locations. Design: We conducted a cross-sectional study using baseline data and samples from 5186 adult participants in the Melbourne Collaborative Cohort Study (MCCS)...
August 8, 2018: American Journal of Clinical Nutrition
Xiliang Du, Taiyu Shen, Heyuan Wang, Xia Qin, Dongmei Xing, Qianqian Ye, Zhen Shi, Zhiyuan Fang, Yiwei Zhu, Yuchen Yang, Zhicheng Peng, Chenxu Zhao, Bin Lv, Xiaobing Li, Guowen Liu, Xinwei Li
The inevitable deficiency in nutrients and energy at the onset of lactation requires an optimal adaptation of the hepatic metabolism to overcome metabolic stress. Fatty liver is one of the main health disorders after parturition. Therefore, to investigate changes in hepatic lipid metabolic status and mitochondria in dairy cows with mild fatty liver, liver and blood samples were collected from healthy cows (n = 15) and cows with mild fatty liver (n = 15). To determine the effects of palmitic acids (PA), one of the major component of fatty acids, on lipid metabolism and mitochondria in vitro, calf hepatocytes were isolated from healthy calves and treated with various concentrations of PA (0, 50, 100, and 200 μM)...
August 9, 2018: Journal of Dairy Science
Gerhild Bornemann, Kai Waßer, Jens Hauslage
Planetary habitation requires technology to maintain natural microbial processes, which make nutrients from biowaste available for plant cultivation. This study describes a 646 day experiment, in which trickling filters were monitored for their ability to mineralize nitrogen when loaded with artificial urine solutions of different concentrations (40, 60, 80 and 100% v/v). Former studies have indicated that increasing urine concentrations slow nitrogen conversion rates and induce growing instability. In the current experiment, nitrogen conversion rates, measured as nitrate production/day, did not differ between concentration levels and increasing instability was not observed...
August 2018: Life Sciences in Space Research
Zakari Ali, Abdul-Razak Abizari
BACKGROUND: Ramadan is a monthlong fast for healthy adolescents and adult Muslims. The quality of foods eaten and eating patterns in Ramadan may be different from other months of the year. Food intake of adolescents is a concern as energy and nutrient requirements are higher and needed to support the growth spurt of this stage. The objective of the present study was to describe the food patterns, dietary diversity and body weight changes among adolescents during Ramadan. METHODS: A prospective cohort study design with four measurement points (baseline, midline, endline and post endline) was conducted among 366 adolescents in Junior High Schools...
August 11, 2018: Nutrition Journal
Saqib Bashir, Qaiser Hussain, Muhammad Shaaban, Hongqing Hu
Cadmium (Cd) contamination in red soil has become a serious environmental concern due to its toxic effects on organisms and the food chain. Possible eco-friendly solutions for Cd immobilization were required to reduce its mobility through biochar. This study evaluated the comparative efficiency of rice straw (RSB), rice hull (RHB) and maize stover (MSB) derived biochar (BC) on Cd mobility and its accumulation in Chinese cabbage (Brassica chinensis L.), which is highly Cd accumulating crop. Results showed that the soil chemical properties (pH, organic carbon and nutrients) significantly increased with increasing the biochar application rate from 1...
August 8, 2018: Chemosphere
Maria Podinovskaia, Anne Spang
Endocytosis is a means for the cell to sample its environment for nutrients and regulate plasma membrane (PM) composition and area. Whereas the majority of internalized cargo is recycled back to the cell surface, select material is sent to the lysosome for degradation. Endosomes further play major roles in central cell activities as diverse as establishment of cell polarity and signaling, lysosomal storage and immunity. The complexity of endosomal functions is reflected by the extensive changes to endosome properties as they mature...
2018: Progress in Molecular and Subcellular Biology
Julia Manetsberger, Abhinaba Ghosh, Elizabeth A H Hall, Graham Christie
The exosporium of Bacillus megaterium QM B1551 spores is morphologically distinct to exosporia observed in spores of many other species. Previous work has demonstrated that unidentified genes encoded on one of the large indigenous plasmids are required for the assembly of the Bacillus megaterium exosporium. Here we provide evidence that pBM600-encoded orthologues of the Bacillus subtilis CotW and CotX proteins, which form the crust layer in spores of that species, are structural components of the Bacillus megaterium QM B1551 spore exosporium...
August 10, 2018: Applied and Environmental Microbiology
Arup Jyoti Borah, Mayank Agarwal, Arun Goyal, Vijayanand S Moholkar
Invasive weeds ubiquitously found in terrestrial and aquatic ecosystems form potential feedstock for lignocellulosic ethanol production. The present study has reported a bioprocess for production of ethanol using mixed feedstock of 8 invasive weeds found in India. The feedstock was subjected to pretreatment comprising dilute acid hydrolysis (for hydrolysis of hemicellulosic fraction), alkaline delignification and enzymatic hydrolysis of cellulosic fraction. Pentose-rich and hexose-rich hydrolyzates obtained from pretreatment were fermented separately using microbial cultures of S...
August 1, 2018: Ultrasonics Sonochemistry
Alberto Maceda-Veiga, Ralph Mac Nally, Adolfo de Sostoa
The effective aridity in riparian areas is increasing from climate change and from human water consumption, which exacerbates the impacts of effluents from wastewater-treatment plants and from catchment run-off in rivers. The potential of natural riparian areas to act as 'green filters' has long been recognized, but the possible ecological benefits of natural riparian areas over large-scale environmental gradients on fish have not been explored in detail. Using an extensive data-set from northeastern Spain (99,700 km2 , 15 catchments, 530 sites), ours is the first study to ask whether natural riparian vegetation can mitigate the effects of pollution on fish in rivers experiencing water scarcity...
August 2, 2018: Water Research
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"