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https://www.readbyqxmd.com/read/28549306/pretreatment-of-corn-stover-by-solid-acid-for-d-lactic-acid-fermentation
#1
Xiqing Wang, Gang Wang, Xiaoxiao Yu, Huan Chen, Yang Sun, Guang Chen
Solid acid is a new acid that is safe and green, which has been widely used in the fields of acid pickling. In this study, we adopted solid acid to pretreat corn stover and used the pretreated corn stover in the fermentation of d-lactic acid. Finally, we obtained optimal conditions for the pretreatment of corn stover by solid acid: digestion temperature of 120°C, digestion time of 80min, and solid acid concentration of 1.5%. Then adding cellulase of 30FPU/g, the conversion rate of glucose reached 71.06% after enzymatic hydrolysis for 72h...
April 27, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28549252/alkaline-and-oxidative-pretreatments-for-the-anaerobic-digestion-of-cow-manure-and-maize-straw-factors-influencing-the-process-and-preliminary-economic-viability-of-an-industrial-application
#2
Juan Luis Ramos-Suárez, Daniel Gómez, Leticia Regueiro, Andrea Baeza, Felipe Hansen
This paper studies the application of calcium oxide (CaO), peracetic acid (PAA) and a combination of both in order to reduce lignin content and increase biogas potential of cow manure and maize straw. Changes in organic matter were mainly affected by the type of reagent use and the dosage, with minimum influence of exposure time and dilution. Changes in pH may limit the application of chemicals. Increase in biogas production with a combination of CaO and PAA, and separate application of PAA and CaO was 156...
May 12, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28549232/identification-and-characterization-of-transcription-factor-zmereb94-involved-in-starch-synthesis-in-maize
#3
Hui Li, Qianlin Xiao, Chunxia Zhang, Jia Du, Xiao Li, Huanhuan Huang, Bin Wei, Yangping Li, Guowu Yu, Hanmei Liu, Yufeng Hu, Yinghong Liu, Junjie Zhang, Yubi Huang
Maize is an important food crop and industrial material owing to its high starch content. However, the mechanism of starch synthesis is not fully elucidated, especially with regard to the expression and regulation of starch synthetic genes. The APETALA2/Ethylene Responsive Factor (AP2/ERF) family plays a crucial role in various biological processes via regulating gene expression. In this study, the ZmEREB94 gene was identified through co-expression analysis. Bioinformatics analysis confirmed that ZmEREB94 belongs to the AP2/ERF family...
May 4, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28549209/genotypic-correlation-and-path-analysis-in-early-and-super-early-maize-genotypes
#4
B M Alves, A Cargnelutti Filho
The aims of this study were to assess the linear relationships between agronomic and nutritional traits and to identify promising traits for indirect selection in early and super-early maturing maize genotypes. Two trials were run in the 2009/2010 agricultural year, each consisting of a randomized block design with three replications. One trial was run on 36 early maturing maize genotypes and the other on 22 super-early maturing genotypes. Six agronomic traits, 11 protein-nutritional traits, and four energetic-nutritional traits were measured...
May 25, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28549205/genetic-divergence-among-corn-hybrids-and-combining-ability-for-agronomic-and-bromatological-traits-of-silage
#5
E Gralak, M V Faria, A S T Figueiredo, D A Rizzardi, M Neumann, M C Mendes, C A Scapim, S Galbeiro
We assessed the impact of genetic divergence and the ability to combine corn hybrids used for the production of silage on the agronomic and bromatological traits of silage quality. We evaluated 18 corn hybrids used as genitors in a circulant diallel scheme in which each genitor hybrid participated in 9 hybrid combinations, and evaluated 100 treatments [18 genitor hybrids, 81 diallelic hybrids, and a commercial check hybrid (DKB330)] in a triple lattice 10 x 10 experimental design in two environments in Brazil...
May 25, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28548655/an-n-acetylglucosamine-transporter-required-for-arbuscular-mycorrhizal-symbioses-in-rice-and-maize
#6
Marina Nadal, Ruairidh Sawers, Shamoon Naseem, Barbara Bassin, Corinna Kulicke, Abigail Sharman, Gynheung An, Kyungsook An, Kevin R Ahern, Amanda Romag, Thomas P Brutnell, Caroline Gutjahr, Niko Geldner, Christophe Roux, Enrico Martinoia, James B Konopka, Uta Paszkowski
Most terrestrial plants, including crops, engage in beneficial interactions with arbuscular mycorrhizal fungi. Vital to the association is mutual recognition involving the release of diffusible signals into the rhizosphere. Previously, we identified the maize no perception 1 (nope1) mutant to be defective in early signalling. Here, we report cloning of ZmNope1 on the basis of synteny with rice. NOPE1 encodes a functional homologue of the Candida albicans N-acetylglucosamine (GlcNAc) transporter NGT1, and represents the first plasma membrane GlcNAc transporter identified from plants...
May 26, 2017: Nature Plants
https://www.readbyqxmd.com/read/28548086/corrigendum-1000-genomes-based-meta-analysis-identifies-10-novel-loci-for-kidney-function
#7
Mathias Gorski, Peter J van der Most, Alexander Teumer, Audrey Y Chu, Man Li, Vladan Mijatovic, Ilja M Nolte, Massimiliano Cocca, Daniel Taliun, Felicia Gomez, Yong Li, Bamidele Tayo, Adrienne Tin, Mary F Feitosa, Thor Aspelund, John Attia, Reiner Biffar, Murielle Bochud, Eric Boerwinkle, Ingrid Borecki, Erwin P Bottinger, Ming-Huei Chen, Vincent Chouraki, Marina Ciullo, Josef Coresh, Marilyn C Cornelis, Gary C Curhan, Adamo Pio d' Adamo, Abbas Dehghan, Laura Dengler, Jingzhong Ding, Gudny Eiriksdottir, Karlhans Endlich, Stefan Enroth, Tõnu Esko, Oscar H Franco, Paolo Gasparini, Christian Gieger, Giorgia Girotto, Omri Gottesman, Vilmundur Gudnason, Ulf Gyllensten, Stephen J Hancock, Tamara B Harris, Catherine Helmer, Simon Höllerer, Edith Hofer, Albert Hofman, Elizabeth G Holliday, Georg Homuth, Frank B Hu, Cornelia Huth, Nina Hutri-Kähönen, Shih-Jen Hwang, Medea Imboden, Åsa Johansson, Mika Kähönen, Wolfgang König, Holly Kramer, Bernhard K Krämer, Ashish Kumar, Zoltan Kutalik, Jean-Charles Lambert, Lenore J Launer, Terho Lehtimäki, Martin H de Borst, Gerjan Navis, Morris Swertz, Yongmei Liu, Kurt Lohman, Ruth J F Loos, Yingchang Lu, Leo-Pekka Lyytikäinen, Mark A McEvoy, Christa Meisinger, Thomas Meitinger, Andres Metspalu, Marie Metzger, Evelin Mihailov, Paul Mitchell, Matthias Nauck, Albertine J Oldehinkel, Matthias Olden, Brenda Wjh Penninx, Giorgio Pistis, Peter P Pramstaller, Nicole Probst-Hensch, Olli T Raitakari, Rainer Rettig, Paul M Ridker, Fernando Rivadeneira, Antonietta Robino, Sylvia E Rosas, Douglas Ruderfer, Daniela Ruggiero, Yasaman Saba, Cinzia Sala, Helena Schmidt, Reinhold Schmidt, Rodney J Scott, Sanaz Sedaghat, Albert V Smith, Rossella Sorice, Benedicte Stengel, Sylvia Stracke, Konstantin Strauch, Daniela Toniolo, Andre G Uitterlinden, Sheila Ulivi, Jorma S Viikari, Uwe Völker, Peter Vollenweider, Henry Völzke, Dragana Vuckovic, Melanie Waldenberger, Jie Jin Wang, Qiong Yang, Daniel I Chasman, Gerard Tromp, Harold Snieder, Iris M Heid, Caroline S Fox, Anna Köttgen, Cristian Pattaro, Carsten A Böger, Christian Fuchsberger
This corrects the article DOI: 10.1038/srep45040.
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28547012/how-do-the-type-of-qtl-effect-and-the-form-of-the-residual-term-influence-qtl-detection-in-multi-parent-populations-a-case-study-in-the-maize-eu-nam-population
#8
Vincent Garin, Valentin Wimmer, Sofiane Mezmouk, Marcos Malosetti, Fred van Eeuwijk
In the QTL analysis of multi-parent populations, the inclusion of QTLs with various types of effects can lead to a better description of the phenotypic variation and increased power. For the type of QTL effect in QTL models for multi-parent populations (MPPs), various options exist to define them with respect to their origin. They can be modelled as referring to close parental lines or to further away ancestral founder lines. QTL models for MPPs can also be characterized by the homo- or heterogeneity of variance for polygenic effects...
May 25, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28546900/response-to-kruse-plass-et-al-2017-regarding-the-risk-to-non-target-lepidopteran-larvae-exposed-to-pollen-from-one-or-more-of-three-bt-maize-events-mon810-bt11-and-1507
#9
Joe N Perry, Paolo Barberi, Detlef Bartsch, A N E Birch, Achim Gathmann, Jozsef Kiss, Barbara Manachini, Marco Nuti, Stefan Rauschen, Joachim Schiemann, Mechthild Schuppener, Jeremy Sweet, Christoph C Tebbe, Fabio Veronesi
We respond to the paper of Kruse-Plass et al. (Environ Sci Eur 29:12, 2017), published in this journal, regarding the risk to non-target lepidopteran larvae exposed to pollen from one or more of three Bt maize events (MON810, Bt11 and 1507). We emphasise that what is important for environmental risk assessment is not the number of pollen grains per se, but the degree of exposure of a NT lepidopteran larva to Bt protein contained in maize pollen. The main text of this response deals with general issues which Kruse-Plass et al...
2017: Environmental Sciences Europe
https://www.readbyqxmd.com/read/28546574/corrigendum-a-study-of-allelic-diversity-underlying-flowering-time-adaptation-in-maize-landraces
#10
J Alberto Romero Navarro, Martha Wilcox, Juan Burgueño, Cinta Romay, Kelly Swarts, Samuel Trachsel, Ernesto Preciado, Arturo Terron, Humberto Vallejo Delgado, Victor Vidal, Alejandro Ortega, Armando Espinoza Banda, Noel Orlando Gómez Montiel, Ivan Ortiz-Monasterio, Félix San Vicente, Armando Guadarrama Espinoza, Gary Atlin, Peter Wenzl, Sarah Hearne, Edward S Buckler
No abstract text is available yet for this article.
May 26, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28545967/preparation-and-characterization-of-non-crystalline-granular-starch-and-corresponding-carboxymethyl-starch
#11
Bao Zhang, Xiaomin Li, Qiutao Xie, Han Tao, Wu Wang, Han-Qing Chen
Native corn starch slurried in 50% ethanol solution was treated at 60°C, 70°C, 80°C, and 85°C, respectively. The resultant starches were investigated by polarized microscopy, scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and X-ray diffractometry (XRD). The Maltese cross of ethanol-heating treated starch gradually weaken with increasing temperature and completely disappeared at 85°C. SEM data indicated the treated granular exhibited a rougher surface with more pores and grooves than native starch granular, but the shape of the treated starch was still intact...
May 22, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28545533/food-beliefs-and-practices-among-the-kalenjin-pregnant-women-in-rural-uasin-gishu-county-kenya
#12
Roselyter Monchari Riang'a, Jacqueline Broerse, Anne Kisaka Nangulu
BACKGROUND: Understanding food beliefs and practices is critical to the development of dietary recommendations, nutritional programmes, and educational messages. This study aimed to understand the pregnancy food beliefs and practices and the underlying reasons for these among the contemporary rural Kalenjin communities of Uasin Gishu County, Kenya. METHODS: Through semi-structured interviews, data was collected from 154 pregnant and post-natal Kalenjin women about restricted and recommended foods, and why they are restricted or recommended during pregnancy...
May 25, 2017: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/28545215/fertilizer-performance-of-liquid-fraction-of-digestate-as-synthetic-nitrogen-substitute-in-silage-maize-cultivation-for-three-consecutive-years
#13
I Sigurnjak, C Vaneeckhaute, E Michels, B Ryckaert, G Ghekiere, F M G Tack, E Meers
Following changes over recent years in fertilizer legislative framework throughout Europe, phosphorus (P) is taking over the role of being the limiting factor in fertilizer application rate of animal manure. This results in less placement area for spreading animal manure. As a consequence, more expensive and energy demanding synthetic fertilizers are required to meet crop nutrient requirements despite existing manure surpluses. Anaerobic digestion followed by mechanical separation of raw digestate, results in liquid fraction (LF) of digestate, a product poor in P but rich in nitrogen (N) and potassium (K)...
May 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545130/responses-of-absolute-and-specific-enzyme-activity-to-consecutive-application-of-composted-sewage-sludge-in-a-fluventic-ustochrept
#14
Xiao Liu, Kangli Guo, Lin Huang, Zhengyu Ji, Huimin Jiang, Hu Li, Jianfeng Zhang
Composted sewage sludge (CS) is considered a rich source of soil nutrients and significantly affects the physical, chemical, and biological characteristics of soil, but its effect on specific enzyme activity in soil is disregarded. The present experiment examined the absolute and specific enzyme activity of the enzymes involved in carbon, nitrogen, and phosphorus cycles, the diversity of soil microbial functions, and soil community composition in a Fluventic Ustochrept under a maize-wheat rotation system in North China during 2012-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28544894/regulation-of-maize-kernel-weight-and-carbohydrate-metabolism-by-abscisic-acid-applied-at-the-early-and-middle-post-pollination-stages-in-vitro
#15
Li Zhang, Xu-Hui Li, Zhen Gao, Si Shen, Xiao-Gui Liang, Xue Zhao, Shan Lin, Shun-Li Zhou
Abscisic acid (ABA) accumulates in plants under drought stress, but views on the role of ABA in kernel formation and abortion are not unified. The response of the developing maize kernel to exogenous ABA was investigated by excising kernels from cob sections at four days after pollination and culturing in vitro with different concentrations of ABA (0, 5, 10, 100μM). When ABA was applied at the early post-pollination stage (EPPS), significant weight loss was observed at high ABA concentration (100μM), which could be attributed to jointly affected sink capacity and activity...
May 10, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28544789/determinants-of-recent-aflatoxin-exposure-among-pregnant-women-in-rural-zimbabwe
#16
Laura E Smith, Mduduzi N N Mbuya, Andrew J Prendergast, Paul C Turner, Sandra Ruboko, Jean H Humphrey, Rebecca J Nelson, Ancikaria Chigumira, George Kembo, Rebecca J Stoltzfus
SCOPE: Aflatoxins are toxic secondary metabolites of Aspergillus species that contaminate staple foods such as maize and groundnuts. Aflatoxin exposure during pregnancy has been associated with adverse birth outcomes in limited-scale surveys in sub-Saharan Africa. The objective of this study was to describe the determinants of aflatoxin exposure, using urinary aflatoxin M1 (AFM1) biomarkers and data generated by the Sanitation Hygiene Infant Nutrition Efficacy (SHINE) trial for rural Zimbabwean women in early pregnancy...
May 22, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28544760/a-novel-pattern-of-yolk-processing-in-developing-snake-eggs-colubridae-lampropeltini-and-its-functional-and-evolutionary-implications
#17
Kathryn G Powers, Daniel G Blackburn
Early amniotic vertebrates evolved large-yolked eggs that permitted production of well-developed, terrestrial hatchlings. This reproductive pattern required new mechanisms for cellularizing the yolk and mobilizing it for embryonic use. In birds, cells that line the yolk sac cavity phagocytose and digest the yolk material, a pattern that is commonly assumed to be universal among oviparous amniotes. However, recent evidence challenges the assumption that all squamate reptiles conform to the avian developmental pattern...
May 24, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28544434/strain-stiffening-hydrogels-through-self-assembly-and-covalent-fixation-of-semi-flexible-fibers
#18
Rint P Sijbesma, Marcos Fernandez-Castano Romera, Clément Guibert, Ilja K Voets, Cornelis Storm
Biomimetic, strain-stiffening materials are reported, made through self-assembly and covalent fixation of small building blocks to form fibrous hydrogels able to stiffen by an order of magnitude in response to applied stress. The gels consist of semi-flexible rodlike micelles of bisurea bolaamphiphiles with oligo(ethylene oxide) (EO) outer blocks and a polydiacetylene (PDA) backbone. The micelles are fibers composed of 9-10 ribbons. A gelation method based on Cu-catalyzed azide-alkyne cycloaddition (CuAAC) was developed that leads to strain-stiffening hydrogels with unusual yet universal linear and nonlinear stress-strain response...
May 24, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28543430/planet-an-ellipse-fitting-approach-for-simultaneous-t1-and-t2-mapping-using-phase-cycled-balanced-steady-state-free-precession
#19
Yulia Shcherbakova, Cornelis A T van den Berg, Chrit T W Moonen, Lambertus W Bartels
PURPOSE: To demonstrate the feasibility of a novel, ellipse fitting approach, named PLANET, for simultaneous estimation of relaxation times T1 and T2 from a single 3D phase-cycled balanced steady-state free precession (bSSFP) sequence. METHODS: A method is presented in which the elliptical signal model is used to describe the phase-cycled bSSFP steady-state signal. The fitting of the model to the acquired data is reformulated into a linear convex problem, which is solved directly by a linear least squares method, specific to ellipses...
May 22, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28542542/comparative-analysis-of-bacterial-community-structure-in-the-rhizosphere-of-maize-by-high-throughput-pyrosequencing
#20
Yi Yang, Na Wang, Xinyan Guo, Yi Zhang, Boping Ye
In this study, we designed a microcosm experiment to explore the composition of the bacterial community in the rhizosphere of maize and bulk soil by sequencing the V3-V4 region of the 16S rRNA gene on the Illumina system. 978-1239 OTUs (cut off level of 3%) were found in rhizosphere and bulk soil samples. Rhizosphere shared features with the bulk soil, such as predominance of Acidobacteria, Proteobacteria, Actinobacteria, Bacteroidetes, Chloroflexi, Firmicutes, Gemmatimonadetes and TM7. At genus level, many of the dominant rhizosphere genera (Chitinophaga, Nitrospira, Flavobacterium, etc...
2017: PloS One
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