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Nutrients

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https://www.readbyqxmd.com/read/29668133/helminth-eggs-as-parasitic-indicators-of-fecal-contamination-in-agricultural-irrigation-water-biosolids-soils-and-pastures
#1
María Claudia Campos, Milena Beltrán, Nancy Fuentes, Gerardo Moreno
INTRODUCTION: A very common practice in agriculture is the disposal of wastewater and biosolids from water treatment systems due to their high nutrient content, which substantially improves crop yields. However, the presence of pathogens of fecal origin creates a sanitary risk to farmers and consumers. OBJECTIVE: To determine the presence and concentration of helminth eggs in irrigation waters, biosolids, agricultural soils, and pastures. MATERIALS AND METHODS: Water, biosolids, soil, and pasture samples were collected and analyzed for helminth egg detection, total eggs and viable eggs counts...
March 15, 2018: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29668041/warming-intensify-co-2-flux-and-nutrient-release-from-algal-wrack-subsidies-on-sandy-beaches
#2
M Lastra, J López, I F Rodil
Algal wrack subsidies underpin most of the food web structure of exposed sandy beaches, and are responsible of important biogeochemical processes that link marine and terrestrial ecosystems. The response in decomposition of algal wrack deposits to global warming has not been studied in ocean exposed sandy beaches to date. With this aim, passive open top chambers (OTCs) were used to increase soil temperature within the range predicted by the IPCC for western Europe (between 0.5 and 1.5 °C), following the hypothesis that the biogeochemical processing of macroalgal wrack subsidies would accelerate in response to temperature increase...
April 18, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29667846/effect-of-gender-on-breast-and-thigh-turkey-meat-quality
#3
F Gálvez, R Domínguez, M Pateiro, J Carballo, I Tomasevic, J M Lorenzo
1. The influence of gender on chemical composition, physicochemical parameters, fatty acid profile, amino acid and mineral composition of turkey breast and thigh meat was studied in order to assess nutrient requirements. 2. Chemical composition showed that only intramuscular fat in breast meat was significantly affected by gender (P<0.05). The results showed a higher percentage of intramuscular fat in male samples, almost double the amount found in females (0.73% vs. 0.38%). 3.For meat colour parameters, only a* showed different results between sexes, with male samples (breast: P<0...
April 18, 2018: British Poultry Science
https://www.readbyqxmd.com/read/29667213/photosynthesis-is-differently-regulated-during-and-after-copper-induced-nutritional-stress-in-citrus-trees
#4
Franz W R Hippler, Veronica L Dovis, Rodrigo M Boaretto, Jose A Quaggio, Ricardo A Azevedo, Lorraine E Williams, Dirceu Mattos
Antioxidant enzymatic responses in Citrus leaves under Cu-induced stress depends on rootstock genotypes. However, there is a lack of information about how woody plants recover growth capacity after exposure to elevated Cu and whether growth is affected by the redistribution of the metal to new vegetative parts and consequently whether photosynthesis is affected. Therefore, the biomass of plants and Cu concentrations in new leaf flushes were determined in young citrus trees grafted onto contrasting rootstocks [Swingle citrumelo (SW) and Rangpur lime (RL)]...
April 17, 2018: Physiologia Plantarum
https://www.readbyqxmd.com/read/29667201/functioning-of-potassium-and-magnesium-in-photosynthesis-photosynthate-translocation-and-photoprotection
#5
Merle Tränkner, Ershad Tavakol, Bálint Jákli
Potassium (K) and magnesium (Mg) are mineral nutrients that are required in large quantities by plants. Both elements critically contribute to the process of photosynthesis and the subsequent long-distance transport of photoassimilates. If K or Mg are not present in sufficient quantities in photosynthetic tissues, complex interactions of anatomical, physiological and biochemical responses result in a reduction of photosynthetic carbon assimilation. As a consequence, excessive production of reactive oxygen species causes photooxidation of the photosynthetic apparatus and cause an up-regulation of photoprotective mechanisms...
April 18, 2018: Physiologia Plantarum
https://www.readbyqxmd.com/read/29667177/adverse-placental-effects-of-valproic-acid-studies-in-perfused-human-placentas
#6
Miriam Rubinchik-Stern, Miriam Shmuel, Jacob Bar, Michal Kovo, Sara Eyal
OBJECTIVE: In utero exposure to valproic acid (VPA) has been associated with worse pregnancy outcomes compared to all other antiepileptic drugs. We have previously shown that VPA alters the expression of placental transporters for hormones and nutrients in vitro and in pregnant mice. Here, our aim was to characterize the effects of short exposure to VPA on the expression of carriers for compounds essential for fetal development in human placentas ex vivo, under controlled conditions...
April 17, 2018: Epilepsia
https://www.readbyqxmd.com/read/29666939/a-transcriptomic-analysis-of-saccharomyces-cerevisiae-under-the-stress-of-2-phenylethanol
#7
Danfeng Jin, Bintao Gu, Dawei Xiong, Guochang Huang, Xiaoping Huang, Lan Liu, Jun Xiao
2-Phenylethanol (2-PE) is a kind of advanced aromatic alcohol with rose fragrance, which is wildly used for the deployment of flavors and fragrances. Microbial transformation is the most feasible method for the production of natural 2-PE. But a bottleneck problem is the toxicity of 2-PE on the cells. The molecular mechanisms of the toxic effect of 2-PE to Saccharomyces cerevisiae are not well studied. In this study, we analyzed the transcriptomes of S. cerevisiae in the media with and without 2-PE, respectively, using Illumina RNA-Seq technology...
April 17, 2018: Current Microbiology
https://www.readbyqxmd.com/read/29666780/identification-expression-analysis-and-molecular-modeling-of-iron-deficiency-specific-clone-3-ids3-like-gene-in-hexaploid-wheat
#8
Priyanka Mathpal, Upendra Kumar, Anuj Kumar, Sanjay Kumar, Sachin Malik, Naveen Kumar, H S Dhaliwal, Sundip Kumar
Graminaceous plants secrete hydroxylated phytosiderophores encoded by the genes iron-deficiency-specific clone 2 ( Ids2 ) and iron-deficiency-specific clone 3 ( Ids3 ). An effort was made to identify a putative ortholog of Hodeum vulgare Ids3 gene in hexaploid wheat. The protein structure of TaIDS3 was modeled using homology modeling and structural behavior of modeled structure was analyzed at 20 ns. The simulation trajectory using molecular dynamics simulation suggested the model to be stable with no large fluctuations in residues and local domain level RMSF values (< 2...
April 2018: 3 Biotech
https://www.readbyqxmd.com/read/29666770/applying-foliar-stoichiometric-traits-of-plants-to-determine-fertilization-for-a-mixed-pine-oak-stand-in-the-qinling-mountains-china
#9
Lin Hou, Zhenjie Dong, Yuanyuan Yang, Donghong Zhang, Shengli Zhang, Shuoxin Zhang
Background: The Chinese Natural Forest Protection program has been conducted nationwide and has achieved resounding success. However, timber importation has increased; therefore, producing more domestic timber is critical to meet the demand for raw materials. Fertilization is one of the most effective silviculture practices used to improve tree and stand growth. However, determining the appropriate type and amount of elements is necessary for effective fertilization of big timber in different forest types and environmental conditions...
2018: PeerJ
https://www.readbyqxmd.com/read/29666650/bacterial-community-of-the-rice-floodwater-using-cultivation-independent-approaches
#10
Michele Pittol, Erin Scully, Daniel Miller, Lisa Durso, Lidia Mariana Fiuza, Victor Hugo Valiati
In agricultural systems, interactions between plants and microorganisms are important to maintaining production and profitability. In this study, bacterial communities in floodwaters of rice fields were monitored during the vegetative and reproductive stages of rice plant development using 16S amplicon sequencing. The study was conducted in the south of Brazil, during the crop years 2011/12 and 2012/13. Comparative analyses showed strong differences between the communities of floodwaters associated with the two developmental stages...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29666628/you-shall-not-pass-root-vacuoles-as-a-symplastic-checkpoint-for-metal-translocation-to-shoots-and-possible-application-to-grain-nutritional-quality
#11
REVIEW
Felipe K Ricachenevsky, Artur T de Araújo Junior, Janette P Fett, Raul A Sperotto
Plant nutrient uptake is performed mostly by roots, which have to acquire nutrients while avoiding excessive amounts of essential and toxic elements. Apoplastic barriers such as the casparian strip and suberin deposition block free diffusion from the rhizosphere into the xylem, making selective plasma membrane transporters able to control elemental influx into the root symplast, efflux into the xylem and therefore shoot translocation. Additionally, transporters localized to the tonoplast of root cells have been demonstrated to regulate the shoot ionome, and may be important for seed elemental translocation...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29666609/direct-and-indirect-effects-of-penguin-feces-on-microbiomes-in-antarctic-ornithogenic-soils
#12
Yudong Guo, Nengfei Wang, Gaoyang Li, Gabriela Rosas, Jiaye Zang, Yue Ma, Jie Liu, Wenbing Han, Huansheng Cao
Expansion of penguin activity in maritime Antarctica, under ice thaw, increases the chances of penguin feces affecting soil microbiomes. The detail of such effects begins to be revealed. By comparing soil geochemistry and microbiome composition inside (one site) and outside (three sites) of the rookery, we found significant effects of penguin feces on both. First, penguin feces change soil geochemistry, causing increased moisture content (MC) of ornithogenic soils and nutrients C, N, P, and Si in the rookery compared to non-rookery sites, but not pH...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29666543/spoilage-of-refrigerated-litopenaeus-vannamei-eavesdropping-on-acinetobacter-acyl-homoserine-lactones-promotes-the-spoilage-potential-of-shewanella-baltica
#13
Suqin Zhu, Haohao Wu, Caili Zhang, Jinxin Jie, Zunying Liu, Mingyong Zeng, Changyun Wang
Shewanella baltica and Acinetobacter are among the predominant spoilage bacteria in refrigerated shrimp ( Litopenaeus vannamei ). S. baltica are incapable of producing acyl-homoserine lactone (AHL) quorum sensing signals, but can respond to environmental AHLs. In this paper, Acinetobacter was found to produce three AHLs, i.e. N -butanoyl-l-homoserine lactone (C4-HSL), N -(3-oxohexanoyl)-l-homoserine lactone (O-C6-HSL) and N -(3-oxooctanoyl)-l-homoserine lactone (O-C8-HSL), according to thin-layer chromatography using the bioreporter Agrobacterium tumefaciens A136...
May 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29666540/antimicrobial-antioxidant-and-probiotics-characterization-of-dominant-bacterial-isolates-from-traditional-fermented-fish-of-manipur-north-east-india
#14
Sambanduram Samarjit Singh, Surajit De Mandal, Esther Lalnunmawii, Nachimuthu Senthil Kumar
Utonga - kupsu , Hentak and Ngari are traditional fermented fish products produced by the Manipuri people living in the North-Eastern part of India. The present study was designed with the aim to isolate, identify and characterize the microorganisms present in these fermented foods. Bacterial pure cultures were isolated using serially diluted samples and were further identified by conventional biochemical tests and Sanger sequencing of 16s rRNA gene. Results show that the number of bacterial count in Nutrient agar and Starch casein agar was 14-20 and 10-16 CFU/g, respectively...
May 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29666397/insight-into-the-cold-adaptation-and-hemicellulose-utilization-of-cladosporium-neopsychrotolerans-from-genome-analysis-and-biochemical-characterization
#15
Rui Ma, Huoqing Huang, Yingguo Bai, Huiying Luo, Yunliu Fan, Bin Yao
The occurrence of Cladosporium in cold ecosystems has been evidenced long before, and most of the knowledge about nutrient utilization of this genus is sporadic. An alpine soil isolate C. neopsychrotolerans SL-16, showing great cold tolerance and significant lignocellulose-degrading capability, was sequenced to form a 35.9 Mb genome that contains 13,456 predicted genes. Functional annotation on predicted genes revealed a wide array of proteins involved in the transport and metabolism of carbohydrate, protein and lipid...
April 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29666374/hatric-based-identification-of-receptors-for-orphan-ligands
#16
Nadine Sobotzki, Michael A Schafroth, Alina Rudnicka, Anika Koetemann, Florian Marty, Sandra Goetze, Yohei Yamauchi, Erick M Carreira, Bernd Wollscheid
Cellular responses depend on the interactions of extracellular ligands, such as nutrients, growth factors, or drugs, with specific cell-surface receptors. The sensitivity of these interactions to non-physiological conditions, however, makes them challenging to study using in vitro assays. Here we present HATRIC-based ligand receptor capture (HATRIC-LRC), a chemoproteomic technology that successfully identifies target receptors for orphan ligands on living cells ranging from small molecules to intact viruses...
April 17, 2018: Nature Communications
https://www.readbyqxmd.com/read/29666316/patterns-of-plant-carbon-nitrogen-and-phosphorus-concentration-in-relation-to-productivity-in-china-s-terrestrial-ecosystems
#17
Zhiyao Tang, Wenting Xu, Guoyi Zhou, Yongfei Bai, Jiaxiang Li, Xuli Tang, Dima Chen, Qing Liu, Wenhong Ma, Gaoming Xiong, Honglin He, Nianpeng He, Yanpei Guo, Qiang Guo, Jiangling Zhu, Wenxuan Han, Huifeng Hu, Jingyun Fang, Zongqiang Xie
Plant nitrogen (N) and phosphorus (P) content regulate productivity and carbon (C) sequestration in terrestrial ecosystems. Estimates of the allocation of N and P content in plant tissues and the relationship between nutrient content and photosynthetic capacity are critical to predicting future ecosystem C sequestration under global change. In this study, by investigating the nutrient concentrations of plant leaves, stems, and roots across China's terrestrial biomes, we document large-scale patterns of community-level concentrations of C, N, and P...
April 17, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29666307/interleukin-2-shapes-the-cytotoxic-t-cell-proteome-and-immune-environment-sensing-programs
#18
Christina M Rollings, Linda V Sinclair, Hugh J M Brady, Doreen A Cantrell, Sarah H Ross
Interleukin-2 (IL-2) and Janus kinases (JAKs) regulate transcriptional programs and protein synthesis to promote the differentiation of effector CD8+ cytotoxic T lymphocytes (CTLs). Using high-resolution mass spectrometry, we generated an in-depth characterization of how IL-2 and JAKs configure the CTL proteome to control CTL function. We found that IL-2 signaling through JAK1 and JAK3 (JAK1/3) increased the abundance of a key subset of proteins to induce the accumulation of critical cytokines and effector molecules in T cells...
April 17, 2018: Science Signaling
https://www.readbyqxmd.com/read/29666285/type-ii-secretion-dependent-aminopeptidase-lapa-and-acyltransferase-plac-are-redundant-for-nutrient-acquisition-during-legionella-pneumophila-intracellular-infection-of-amoebas
#19
Richard C White, Felizza F Gunderson, Jessica Y Tyson, Katherine H Richardson, Theo J Portlock, James A Garnett, Nicholas P Cianciotto
Legionella pneumophila genes encoding LapA, LapB, and PlaC were identified as the most highly upregulated type II secretion (T2S) genes during infection of Acanthamoeba castellanii , although these genes had been considered dispensable on the basis of the behavior of mutants lacking either lapA and lapB or plaC A plaC mutant showed even higher levels of lapA and lapB transcripts, and a lapA lapB mutant showed heightening of plaC mRNA levels, suggesting that the role of the LapA/B aminopeptidase is compensatory with respect to that of the PlaC acyltransferase...
April 17, 2018: MBio
https://www.readbyqxmd.com/read/29666265/an-explainable-deep-machine-vision-framework-for-plant-stress-phenotyping
#20
Sambuddha Ghosal, David Blystone, Asheesh K Singh, Baskar Ganapathysubramanian, Arti Singh, Soumik Sarkar
Current approaches for accurate identification, classification, and quantification of biotic and abiotic stresses in crop research and production are predominantly visual and require specialized training. However, such techniques are hindered by subjectivity resulting from inter- and intrarater cognitive variability. This translates to erroneous decisions and a significant waste of resources. Here, we demonstrate a machine learning framework's ability to identify and classify a diverse set of foliar stresses in soybean [ Glycine max (L...
April 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
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