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https://www.readbyqxmd.com/read/27913740/a-%C3%AE-ketoacyl-coa-synthase-is-involved-in-rice-leaf-cuticular-wax-synthesis-and-requires-a-cer2-like-protein-as-a-cofactor
#1
Xiaochen Wang, Yuanyuan Guan, Du Zhang, Xiangbai Dong, Lihong Tian, Le Qing Qu
Cuticular waxes are complex mixtures of very-long-chain fatty acids (VLCFAs) and their derivatives, forming a natural barrier on aerial surfaces of terrestrial plants against biotic and abiotic stresses. In VLCFA biosynthesis, β-ketoacyl-CoA synthase (KCS) is the key enzyme, catalyzing the first reaction in fatty acid elongation and determining substrate specificity. We isolated a rice (Oryza sativa L.) wax crystal-sparse leaf 4 (WSL4) gene using a map-based cloning strategy. WSL4 is predicted to encode a KCS, a homolog of Arabidopsis CER6...
December 2, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27913600/the-evolution-of-jaw-protrusion-mechanics-has-been-tightly-coupled-to-bentho-pelagic-divergence-in-damselfishes-pomacentridae
#2
W James Cooper, Casey B Carter, Andrew J Conith, Aaron N Rice, Mark W Westneat
Most species-rich lineages of aquatic organisms have undergone divergence between forms that feed from the substrate (benthic feeding) and forms that feed from the water column (pelagic feeding). Changes in trophic niche are frequently accompanied by changes in skull mechanics, and multiple fish lineages have evolved highly specialized biomechanical configurations that allow them to protrude their upper jaws toward the prey during feeding. Damselfishes (family Pomacentridae) are an example of a species-rich lineage with multiple trophic morphologies and feeding ecologies...
December 2, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27913169/liquid-nitrogen-pretreatment-of-eucalyptus-sawdust-and-rice-hull-for-enhanced-enzymatic-saccharification
#3
Rafael Castoldi, Vanesa G Correa, Gutierrez Rodrigues de Morais, Cristina G M de Souza, Adelar Bracht, Rosely A Peralta, Regina F Peralta-Muniz Moreira, Rosane M Peralta
In this work, liquid nitrogen was used for the first time in the pretreatment of plant biomasses for purposes of enzymatic saccharification. After treatment (cryocrushing), the initial rates of the enzymatic hydrolysis of eucalyptus sawdust and rice hull were increased more than ten-fold. Cryocrushing did not modify significantly the contents of cellulose, hemicellulose and lignin in both eucalyptus sawdust and rice hulls. However, substantial disorganization of the lignocellulosic materials in consequence of the pretreatment could be observed by electron microscopy...
November 25, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27912765/rna-seq-based-digital-gene-expression-analysis-reveals-modification-of-host-defense-responses-by-rice-stripe-virus-during-disease-symptom-development-in-arabidopsis
#4
Feng Sun, Peng Fang, Juan Li, Linlin Du, Ying Lan, Tong Zhou, Yongjian Fan, Wenbiao Shen, Yijun Zhou
BACKGROUND: Virus infection induces and suppresses host gene expression on a global level. Rice stripe virus (RSV) is the type species of the genus Tenuivirus and infects rice and Arabidopsis plants. Microarray-based and next generation sequencing-based transcriptomic approaches have been used to study rice-RSV interactions. However, our knowledge of the response of Arabidopsis plants to RSV infection is limited, and it requires further investigation to determine the similarities (or differences) in virus-host interactions between monocot and dicot hosts infected with RSV...
December 2, 2016: Virology Journal
https://www.readbyqxmd.com/read/27912125/feooh-graphene-oxide-nanocomposites-for-fluoride-removal-from-water-acetate-mediated-nano-feooh-growth-and-adsorption-mechanism
#5
Liyuan Kuang, Yuyang Liu, Dandan Fu, Yaping Zhao
Fluoride adsorption capacity in water matrices depends highly on the properties of each component of the adsorption system, the most important one of these is the physchemical properties of the adsorbent. Nanoparticle Goethite anchored onto graphene oxide (FeOOH+Ac/GO) and rice spike-like Akaganeite anchored onto graphene oxide (FeOOH/GO) were synthesized via an in-situ hydrolysis procedure and compared their fluoride adsorption performances in order to address the effect of crystalline structure growth induced by acetate sodium (NaAc), one important organic ligand in water and soil...
November 21, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27912109/characterization-and-fine-mapping-of-a-novel-premature-leaf-senescence-mutant-yellow-leaf-and-dwarf-1-in-rice
#6
Luchang Deng, Peng Qin, Zhi Liu, Geling Wang, Weilan Chen, Jianhua Tong, Langtao Xiao, Bin Tu, Yuantao Sun, Wei Yan, Hang He, Jun Tan, Xuewei Chen, Yuping Wang, Shigui Li, Bingtian Ma
Leaves are the main organs in which photosynthates are produced. Leaf senescence facilitates the translocation of photosynthates and nutrients from source to sink, which is important for plant development and especially for crop yield. However, the molecular mechanism of leaf senescence is unknown. Here, we identified a mutant, yellow leaf and dwarf 1 (yld1), which exhibited decreased plant height and premature leaf senescence. Nitroblue tetrazolium and diamiobenzidine staining analyses revealed that the concentrations of reactive oxygen species were higher in yld1 leaves than in wild type leaves...
November 22, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27911795/klb-is-associated-with-alcohol-drinking-and-its-gene-product-%C3%AE-klotho-is-necessary-for-fgf21-regulation-of-alcohol-preference
#7
Gunter Schumann, Chunyu Liu, Paul O'Reilly, He Gao, Parkyong Song, Bing Xu, Barbara Ruggeri, Najaf Amin, Tianye Jia, Sarah Preis, Marcelo Segura Lepe, Shizuo Akira, Caterina Barbieri, Sebastian Baumeister, Stephane Cauchi, Toni-Kim Clarke, Stefan Enroth, Krista Fischer, Jenni Hällfors, Sarah E Harris, Saskia Hieber, Edith Hofer, Jouke-Jan Hottenga, Åsa Johansson, Peter K Joshi, Niina Kaartinen, Jaana Laitinen, Rozenn Lemaitre, Anu Loukola, Jian'an Luan, Leo-Pekka Lyytikäinen, Massimo Mangino, Ani Manichaikul, Hamdi Mbarek, Yuri Milaneschi, Alireza Moayyeri, Kenneth Mukamal, Christopher Nelson, Jennifer Nettleton, Eemil Partinen, Rajesh Rawal, Antonietta Robino, Lynda Rose, Cinzia Sala, Takashi Satoh, Reinhold Schmidt, Katharina Schraut, Robert Scott, Albert Vernon Smith, John M Starr, Alexander Teumer, Stella Trompet, André G Uitterlinden, Cristina Venturini, Anne-Claire Vergnaud, Niek Verweij, Veronique Vitart, Dragana Vuckovic, Juho Wedenoja, Loic Yengo, Bing Yu, Weihua Zhang, Jing Hua Zhao, Dorret I Boomsma, John Chambers, Daniel I Chasman, Toniolo Daniela, Eco de Geus, Ian Deary, Johan G Eriksson, Tõnu Esko, Volker Eulenburg, Oscar H Franco, Philippe Froguel, Christian Gieger, Hans J Grabe, Vilmundur Gudnason, Ulf Gyllensten, Tamara B Harris, Anna-Liisa Hartikainen, Andrew C Heath, Lynne Hocking, Albert Hofman, Cornelia Huth, Marjo-Riitta Jarvelin, J Wouter Jukema, Jaakko Kaprio, Jaspal S Kooner, Zoltan Kutalik, Jari Lahti, Claudia Langenberg, Terho Lehtimäki, Yongmei Liu, Pamela A F Madden, Nicholas Martin, Alanna Morrison, Brenda Penninx, Nicola Pirastu, Bruce Psaty, Olli Raitakari, Paul Ridker, Richard Rose, Jerome I Rotter, Nilesh J Samani, Helena Schmidt, Tim D Spector, David Stott, David Strachan, Ioanna Tzoulaki, Pim van der Harst, Cornelia M van Duijn, Pedro Marques-Vidal, Peter Vollenweider, Nicholas J Wareham, John B Whitfield, James Wilson, Bruce Wolffenbuttel, Georgy Bakalkin, Evangelos Evangelou, Yun Liu, Kenneth M Rice, Sylvane Desrivières, Steven A Kliewer, David J Mangelsdorf, Christian P Müller, Daniel Levy, Paul Elliott
Excessive alcohol consumption is a major public health problem worldwide. Although drinking habits are known to be inherited, few genes have been identified that are robustly linked to alcohol drinking. We conducted a genome-wide association metaanalysis and replication study among >105,000 individuals of European ancestry and identified β-Klotho (KLB) as a locus associated with alcohol consumption (rs11940694; P = 9.2 × 10(-12)). β-Klotho is an obligate coreceptor for the hormone FGF21, which is secreted from the liver and implicated in macronutrient preference in humans...
November 28, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911377/hybrid-cut-an-improved-sectioning-method-for-recalcitrant-plant-tissue-samples
#8
Tien-Kuan Chen, Hui-Ting Yang, Su-Chiung Fang, Yi-Chen Lien, Ting-Ting Yang, Swee-Suak Ko
Maintaining plant section integrity is essential for studying detailed anatomical structures at the cellular, tissue, or even organ level. However, some plant cells have rigid cell walls, tough fibers and crystals (calcium oxalate, silica, etc.), and high water content that often disrupt tissue integrity during plant tissue sectioning. This study establishes a simple Hybrid-Cut tissue sectioning method. This protocol modifies a paraffin-based sectioning technique and improves the integrity of tissue sections from different plants...
November 23, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27910910/genome-wide-characterisation-and-expression-profile-of-the-grapevine-atl-ubiquitin-ligase-family-reveal-biotic-and-abiotic-stress-responsive-and-development-related-members
#9
Pietro Ariani, Alice Regaiolo, Arianna Lovato, Alejandro Giorgetti, Andrea Porceddu, Salvatore Camiolo, Darren Wong, Simone Castellarin, Elodie Vandelle, Annalisa Polverari
The Arabidopsis Tóxicos en Levadura (ATL) protein family is a class of E3 ubiquitin ligases with a characteristic RING-H2 Zn-finger structure that mediates diverse physiological processes and stress responses in plants. We carried out a genome-wide survey of grapevine (Vitis vinifera L.) ATL genes and retrieved 96 sequences containing the canonical ATL RING-H2 domain. We analysed their genomic organisation, gene structure and evolution, protein domains and phylogenetic relationships. Clustering revealed several clades, as already reported in Arabidopsis thaliana and rice (Oryza sativa), with an expanded subgroup of grapevine-specific genes...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910900/zn-uptake-behavior-of-rice-genotypes-and-its-implication-on-grain-zn-biofortification
#10
Sarah E Johnson-Beebout, Johnvie Bayang Goloran, Francis H C Rubianes, Jack D C Jacob, Oliver B Castillo
Understanding Zn uptake dynamics is critical to rice grain Zn biofortification. Here we examined soil Zn availability and Zn uptake pathways as affected by genotype (high-grain Zn varieties IR69428 and IR68144), Zn fertilization and water management in two pot experiments. Results showed significant interactions (P < 0.05) between genotypes and Zn fertilization on DTPA (diethylenetriaminepentaacetic acid)-extractable soil Zn from early tillering to flowering. DTPA-extractable Zn in soils grown with IR69428 was positively correlated with stem (r = 0...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910895/arabidopsis-thaliana-as-a-suitable-model-host-for-research-on-interactions-between-plant-and-foliar-nematodes-parasites-of-plant-shoot
#11
Dong-Wei Wang, Xiao-Fang Peng, Hui Xie, Chun-Ling Xu, De-Qiang Cheng, Jun-Yi Li, Wen-Jia Wu, Ke Wang
The rice white tip nematode (RWTN), Aphelenchoides besseyi and the chrysanthemum foliar nematode (CFN), Aphelenchoides ritzemabosi are migratory plant parasitic nematodes that infect the aboveground parts of plants. In this research, Arabidopsis thaliana was infected by RWTN and CFN under indoor aseptic cultivation, and the nematodes caused recognizable symptoms in the leaves. Furthermore, RWTN and CFN completed their life cycles and proliferated. Therefore, A. thaliana was identified as a new host of RWTN and CFN...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910677/temperature-gradient-scale-length-measurement-a-high-accuracy-application-of-electron-cyclotron-emission-without-calibration
#12
S Houshmandyar, Z J Yang, P E Phillips, W L Rowan, A E Hubbard, J E Rice, J W Hughes, S M Wolfe
Calibration is a crucial procedure in electron temperature (Te) inference from a typical electron cyclotron emission (ECE) diagnostic on tokamaks. Although the calibration provides an important multiplying factor for an individual ECE channel, the parameter ΔTe/Te is independent of any calibration. Since an ECE channel measures the cyclotron emission for a particular flux surface, a non-perturbing change in toroidal magnetic field changes the view of that channel. Hence the calibration-free parameter is a measure of Te gradient...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910663/multi-energy-sxr-cameras-for-magnetically-confined-fusion-plasmas-invited
#13
L F Delgado-Aparicio, J Maddox, N Pablant, K Hill, M Bitter, J E Rice, R Granetz, A Hubbard, J Irby, M Greenwald, E Marmar, K Tritz, D Stutman, B Stratton, P Efthimion
A compact multi-energy soft x-ray camera has been developed for time, energy and space-resolved measurements of the soft-x-ray emissivity in magnetically confined fusion plasmas. Multi-energy soft x-ray imaging provides a unique opportunity for measuring, simultaneously, a variety of important plasma properties (Te, nZ, ΔZeff, and ne,fast). The electron temperature can be obtained by modeling the slope of the continuum radiation from ratios of the available brightness and inverted radial emissivity profiles over multiple energy ranges...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910002/the-rice-pentatricopeptide-repeat-gene-tcd10-is-needed-for-chloroplast-development-under-cold-stress
#14
Lanlan Wu, Jun Wu, Yanxia Liu, Xiaodi Gong, Jianlong Xu, Dongzhi Lin, Yanjun Dong
BACKGROUND: Chloroplast plays a vital role in plant development and growth. The pentatricopeptide repeat (PPR) gene family is one of the largest gene families in plants. In addition, cold stress affects a broad spectrum of cellular components, e.g. chloroplast, and metabolism in plants. However, the regulatory mechanism for rice PPR genes on chloroplast development still remains elusive under cold stress. RESULT: In this paper, we characterized a new rice PPR gene mutant tcd10 (thermo-sensitive chlorophyll-deficient mutant 10) that exhibits the albino phenotype, malformed chloroplast and could not survive after the 5-leaf stage when grown at 20 °C, but does the normal phenotype at 32 °C...
December 2016: Rice
https://www.readbyqxmd.com/read/27909928/erratum-to-cost-effective-enhanced-iron-bioavailability-in-rice-grain-grown-on-calcareous-soil-by-sulfur-mediation-and-its-effect-on-heavy-metals-mineralization
#15
Pia Muhammad Adnan Ramzani, Muhammad Khalid, Shazia Anjum, Waqas-Ud-Din Khan, Shafaqat Ali, Fakhir Hannan, Muhammad Iqbal
No abstract text is available yet for this article.
December 2, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27909556/the-amelioration-of-plasma-lipids-by-korean-traditional-confectionery-in-middle-aged-women-a-cross-over-study-with-western-cookie
#16
Sun Hee Hong, Mijeong Kim, Minji Woo, Jeong Sook Noh, JaeHwan Lee, Lana Chung, Yeong Ok Song
BACKGROUND/OBJECTIVES: The purpose of this study was to examine whether plasma lipid profiles are affected differently by snack kinds with equal calorific values. SUBJECTS/METHODS: We compared a Korean traditional confectionery (dasik) with Western confectionery (cookie) in this regard. Controlled cross-over study consisted of two 3-week snack intake phases and for separating, a 2-week washout period (3-2-3) was carried out with 30 healthy women aged between 40-59 years old...
December 2016: Nutrition Research and Practice
https://www.readbyqxmd.com/read/27908684/identification-and-profiling-of-mirnas-in-overwintering-lissorhoptrus-oryzophilus-via-next-generation-sequencing
#17
Yang Shuang, Zhang Juhong, Wang Shang, Zhang Xinxin, Liu Yan, Xi Jinghui
MicroRNAs (miRNAs) are important regulators of various biological processes in organisms. Insects subjected to abiotic stress can regulate gene expression post-transcriptionally through the use of microRNAs. However, the role of miRNAs in response to cold stress in Lissorhoptrus oryzophilus Kuschel remains unknown. The rice water weevil, L. oryzophilus, is an invasive insect that is able to survive cold winters. To characterize changes in miRNAs in response to overwintering in L. oryzophilus, a comprehensive comparative analysis of microRNAs was performed involving an overwintering and a normal adult...
November 28, 2016: Cryobiology
https://www.readbyqxmd.com/read/27908623/effects-of-growing-seasons-and-genotypes-on-the-accumulation-of-cadmium-and-mineral-nutrients-in-rice-grown-in-cadmium-contaminated-soil
#18
Yang Liu, Changbo Zhang, Yanling Zhao, Shoujun Sun, Zhongqi Liu
Heavy metals naturally occur in soil but their concentrations may be changed by seasonal rainfall under double-rice cropping system. The field trials at three sites, which represent low, medium and high cadmium (Cd) content in soil, revealed significant genotypic and environmental variations in grain Cd concentrations. Most cultivars in late rice at three sites produced grains with Cd content over the maximum permissible concentration (MPC) 0.20mgkg(-1). However, grain Cd content in early rice was over MPC only at high Cd site...
November 28, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27907101/economic-and-environmental-impact-of-rice-blast-pathogen-magnaporthe-oryzae-alleviation-in-the-united-states
#19
Lawton Nalley, Francis Tsiboe, Alvaro Durand-Morat, Aaron Shew, Greg Thoma
Rice blast (Magnaporthe oryzae) is a key concern in combating global food insecurity given the disease is responsible for approximately 30% of rice production losses globally-the equivalent of feeding 60 million people. These losses increase the global rice price and reduce consumer welfare and food security. Rice is the staple crop for more than half the world's population so any reduction in rice blast would have substantial beneficial effects on consumer livelihoods. In 2012, researchers in the US began analyzing the feasibility of creating blast-resistant rice through cisgenic breeding...
2016: PloS One
https://www.readbyqxmd.com/read/27907079/identification-of-pectin-degrading-enzymes-secreted-by-xanthomonas-oryzae-pv-oryzae-and-determination-of-their-role-in-virulence-on-rice
#20
Lavanya Tayi, Roshan V Maku, Hitendra Kumar Patel, Ramesh V Sonti
Xanthomonas oryzae pv.oryzae (Xoo) causes the serious bacterial blight disease of rice. Xoo secretes a repertoire of plant cell wall degrading enzymes (CWDEs) like cellulases, xylanases, esterases etc., which act on various components of the rice cell wall. The major cellulases and xylanases secreted by Xoo have been identified and their role in virulence has been determined. In this study, we have identified some of the pectin degrading enzymes of Xoo and assessed their role in virulence. Bioinformatics analysis indicated the presence of four pectin homogalacturonan (HG) degrading genes in the genome of Xoo...
2016: PloS One
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