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https://www.readbyqxmd.com/read/29055111/genetic-based-dissection-of-arsenic-accumulation-in-maize-using-a-genome-wide-association-analysis-method
#1
Zhan Zhao, Huaisheng Zhang, Zhongjun Fu, Hao Chen, Yanan Lin, Pengshuai Yan, Weihua Li, Huiling Xie, Zhanyong Guo, Xuehai Zhang, Jihua Tang
Understanding the mechanism of arsenic (As) accumulation in plants is important in reducing As's toxicity to plants and its potential risks to human health. Here, we performed a genome-wide association study to dissect the genetic basis of the As contents of different maize tissues in Xixian, which was irrigated with As-rich surface water, and Changge using an association population consisting of 230 representative inbred maize lines. Phenotypic data revealed a wide normal distribution and high repeatability for the As contents in maize tissues...
October 21, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/29055088/the-transcriptome-extracellular-proteome-and-active-secretome-of-agroinfiltrated-n-benthamiana-uncover-a-large-diverse-protease-repertoire
#2
Friederike Grosse-Holz, Steven Kelly, Svenja Blaskowski, Farnusch Kaschani, Markus Kaiser, Renier A L van der Hoorn
Infiltration of disarmed Agrobacterium tumefaciens into leaves of Nicotiana benthamiana (agroinfiltration) facilitates quick and safe production of antibodies, vaccines, enzymes and metabolites for industrial use (Molecular Farming). However, yield and purity of proteins produced by agroinfiltration are hampered by unintended proteolysis, restricting industrial viability of the agroinfiltration platform. Proteolysis may be linked to an immune response to agroinfiltration, but understanding of the response to agroinfiltration is limited...
October 21, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/29055029/cancer-incidence-in-adults-living-in-the-vicinity-of-nuclear-power-plants-in-france-based-on-data-from-the-french-network-of-cancer-registries
#3
Alice Desbiolles, Candice Roudier, Sarah Goria, Morgane Stempfelet, Cécile Kairo, Cécile Quintin, Marie-Laure Bidondo, Alain Monnereau, Blandine Vacquier
Nuclear power plants (NPPs) release toxic emissions into the environment that may affect neighboring populations. This ecologic study was designed to investigate the possibility of an excess incidence of cancer in the vicinity of French NPPs by examining the incidence by municipality of 12 types of cancer in the population aged 15 years and older during the 1995-2011 period. Population exposure to pollution was estimated on the basis of distance from towns of residence to the NPP. Using regression models, we assessed the risk of cancer in a 20-kilometer zone around NPPs and observed an excess incidence of bladder cancer (Relative Risk (RR), 95% Credibility Interval (95% CI)) in men and women (RRmen = 1...
October 21, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29054811/molecular-phylogeny-of-bladderworts-a-wide-approach-of-utricularia-lentibulariaceae-species-relationships-based-on-six-plastidial-and-nuclear-dna-sequences
#4
Saura R Silva, Robert Gibson, Lubomír Adamec, Yoannis Domínguez, Vitor F O Miranda
The carnivorous plant genus Utricularia L. (bladderwort) comprises about 240 species distributed worldwide and is traditionally classified into two subgenera (Polypompholyx and Utricularia) and 35 sections, based mainly on general and trap morphology. It is one out of the largest carnivorous genera, representing ca. 30% of all carnivorous plant species, and is also the most widely distributed. According to previous phylogenetic studies, most infrageneric sections are monophyletic, but there are several incongruences considering their relationships and also the dissenting position of some species as a result of a too few (mostly one or two) molecular markers analyzed...
October 17, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29054632/nitrogen-removal-by-thiosulfate-driven-denitrification-and-plant-uptake-in-enhanced-floating-treatment-wetland
#5
Lei Gao, Weili Zhou, Suqing Wu, Shengbing He, Jungchen Huang, Xu Zhang
This study investigated the potential of thiosulfate-driven autotrophic enhanced floating treatment wetland (AEFTW) in removing nitrogen from the secondary effluent at the relatively short hydraulic retention times and low S/N ratios. Simultaneous autotrophic and heterotrophic denitrification was observed in AEFTW. The peak TN removal rate (15.3gm(-2)d(-1)) exceeded most of the reported floating treatment wetlands. Based on the kinetic model results, low mean temperature coefficient and high k20 verified that the excellent performance in AEFTW diminished the microbial dependence on temperature...
October 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29054119/pollinator-independent-orchid-attracts-biotic-pollinators-due-the-production-of-lipoidal-substances
#6
E R Pansarin, P J Bergamo, M J Ferreira-Caliman
● Flowering plants often depend on the attraction of biotic pollinators for sexual reproduction. Consequently, the emergence and maintenance of selected floral attributes related to pollinator attraction and rewarding are driven by pollinators pressures. ● In this paper we explore the effect of pollinators, rainfall, and temperature and air humidity on the reproduction of a Brazilian terrestrial orchid, Cranichis candida based on data of phenology, flower resources, olfactory and visual attraction cues, pollinators and breeding system...
October 20, 2017: Plant Biology
https://www.readbyqxmd.com/read/29054027/sapofectosid-ensuring-non-toxic-and-effective-dna-and-rna-delivery
#7
Simko Sama, Gerold Jerz, Peter Schmieder, Eric Woith, Matthias F Melzig, Alexander Weng
Different methods are being deployed for non-viral DNA/RNA delivery. However non-viral formulations for DNA/RNA-delivery are often accompanied by severe toxicity and thus low efficiency. Particular costly cell culture media are required as well. Here we introduce sapofection as a valuable enhancing method for non-viral DNA/RNA delivery. Sapofection is based on the application of DNA/RNA nanoplexes and sapofectosid, a plant derived natural transfection reagent. Sapofectosid was produced from plant raw material by chromatographic methods and characterized by tandem mass spectrometry and intensive one and two dimensional NMR-spectroscopy...
October 17, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29053814/effects-of-canola-meal-source-on-the-standardized-ileal-digestible-amino-acids-and-apparent-metabolizable-energy-contents-for-broiler-chickens
#8
D I Adewole, A Rogiewicz, B Dyck, B A Slominski
Two studies were conducted to determine the effect of canola meal source on the standardized ileal digestible amino acids (AA) and nitrogen-corrected apparent metabolizable energy (AMEn) contents of canola meal (CM) from 6 processing plants in Canada. Two plants provided CM in both mash and pellet forms, while the other 4 provided CM in mash form only, giving a total of 8 samples. In the standardized ileal digestibility (SID) assay, 280 birds were housed 7 per cage and fed a commercial starter diet from 1 to 14 d of age followed by the test diets from 15 to 21 d...
October 5, 2017: Poultry Science
https://www.readbyqxmd.com/read/29053757/generation-of-composite-persea-americana-mill-avocado-plants-a-proof-of-concept-study
#9
S Ashok Prabhu, Buyani Ndlovu, Juanita Engelbrecht, Noëlani van den Berg
Avocado (Persea americana (Mill.)), an important commercial fruit, is severely affected by Phytophthora Root Rot in areas where the pathogen is prevalent. However, advances in molecular research are hindered by the lack of a high-throughput transient transformation system in this non-model plant. In this study, a proof-of-concept is demonstrated by the successful application of Agrobacterium rhizogenes-mediated plant transformation to produce composite avocado plants. Two ex vitro strategies were assessed on two avocado genotypes (Itzamna and A0...
2017: PloS One
https://www.readbyqxmd.com/read/29053348/use-of-bacterial-acc-deaminase-to-increase-oil-especially-poly-aromatic-hydrocarbons-phytoremediation-efficiency-for-maize-zea-mays-seedlings
#10
Rezvani Borujeni Samira, Khavazi Kazem, Asgharzadeh Ahmad, Rezvani Borujeni Iraj
Oil presence in soil, as a stressor, reduces phytoremediation efficiency through an increase in the plant stress ethylene. Bacterial 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, as a plant stress ethylene reducer, was employed to increase oil phytoremediation efficiency. For this purpose, the ability of ACC deaminase-producing Pseudomonas strains to grow in oil-polluted culture media and withstand various concentrations of oil and also their ability to reduce plant stress ethylene and enhance some growth characteristics of maize and finally their effects on increasing phytoremediation efficiency of poly aromatic hydrocarbons (PAHs) in soil were investigated...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053347/phytotoxicity-of-tin-mine-waste-and-accumulation-of-involved-heavy-metals-in-common-buckwheat-fagopyrum-esculentum-moench
#11
Jürgen Franzaring, Walter Damsohn, Andreas Fangmeier, Sonja Schlosser, Hannes Kurz, Philipp Büttner
Extraction and processing of cassiterite (SnO2) left large tailings with high concentrations of tin, tungsten, molybdenum and lithium. Information on the phytotoxicity of mine waste is important with regard to ecological hazards. Exposure studies help to identify plants useful for the stabilization of waste tips and the phytomining of metals. A greenhouse study was performed using a dilution series of mine waste and four crops, a halophytic and a metallophytic species to derive dose response curves. Based on effective doses for growth reductions, sensitivity increased in the following order: maize > common buckwheat > quinoa > garden bean...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29053346/rebuttal-to-the-letter-plant-based-diets-do-not-prevent-most-chronic-diseases-of-fenton-et-al
#12
Monica Dinu, Alessandro Casini, Francesco Sofi
No abstract text is available yet for this article.
October 20, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29053266/structure-activity-relationships-of-new-natural-product-based-diaryloxazoles-with-selective-activity-against-androgen-receptor-positive-breast-cancer-cells
#13
Andrew J Robles, Shelby McCowen, Shengxin Cai, Michaels Glassman, Francisco Ruiz, Robert H Cichewicz, Stanton F McHardy, Susan L Mooberry
Targeted therapies for ER+/PR+ and HER2-amplified breast cancers have improved patient survival, but there are no therapies for triple negative breast cancers (TNBC) that lack expression of estrogen and progesterone receptors (ER/PR), or amplification or overexpression of HER2. Gene expression profiling of TNBC has identified molecular subtypes and representative cell lines. An extract of the Texas native plant Amyris texana was found to have selective activity against MDA-MB-453 cells, a model of the luminal androgen receptor (LAR) subtype of TNBC...
October 20, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29053244/punctured-two-dimensional-sheets-for-harvesting-blue-energy
#14
Alessandro Aliprandi, Dawid Pakulski, Artur Ciesielski, Paolo Samorì
The challenges of global climate change and the world's growing demand for energy have brought the need for new renewable energy sources to the top of the international community's agenda. We have known for many centuries that energy is released upon mixing seawater and freshwater, yet it was just a few decades ago that it became clear how this energy can be converted into electricity instead of heat. As a result, the blue energy rush has raised and set new strategies in different science and technology sectors, leading to the construction of a new generation of plants and other technological investments...
October 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/29052967/the-island-cotton-nbs-lrr-gene-gbana1-confers-resistance-to-the-non-race-1-verticillium-dahliae-isolate-vd991
#15
Nan-Yang Li, Xue-Feng Ma, Dylan P G Short, Ting-Gang Li, Lei Zhou, Yue-Jing Gui, Zhi-Qiang Kong, Dan-Dan Zhang, Wen-Qi Zhang, Jun-Jiao Li, Krishna V Subbarao, Jie-Yin Chen, Xiao-Feng Dai
Wilt caused by Verticillium dahliae significantly reduces cotton yields, as host resistance in commercially cultivated Gossypium species is lacking. Understanding the molecular bases of disease resistance in non-commercial Gossypium species could galvanize the development of Verticillium wilt resistance in the cultivated species. Nucleotide binding site-leucine-rich repeat (NBS-LRR) proteins play a central role in plant defense against pathogens. In this study, we focused on the relationship between a locus enriched with eight NBS-LRR genes and Verticillium wilt resistance in G...
October 20, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/29052768/phylogenetic-trophic-specialization-a-robust-comparison-of-herbivorous-guilds
#16
Leonardo R Jorge, Vojtech Novotny, Simon T Segar, George D Weiblen, Scott E Miller, Yves Basset, Thomas M Lewinsohn
Resource specialization is a key concept in ecology, but it is unexpectedly difficult to parameterize. Differences in resource availability, sampling effort and abundances preclude comparisons of incompletely sampled biotic interaction webs. Here, we extend the distance-based specialization index (DSI) that measures trophic specialization by taking resource phylogenetic relatedness and availability into account into a rescaled version, DSI*. It is a versatile metric of specialization that expands considerably the scope and applicability, hence the usefulness, of DSI...
October 20, 2017: Oecologia
https://www.readbyqxmd.com/read/29052528/different-genetic-architectures-underlie-crop-responses-to-the-same-pathogen-the-helianthus-annuus-phoma-macdonaldii-interaction-case-for-black-stem-disease-and-premature-ripening
#17
Amandine Bordat, Gwenaëlle Marchand, Nicolas B Langlade, Nicolas Pouilly, Stéphane Muños, Grégory Dechamp-Guillaume, Patrick Vincourt, Emmanuelle Bret-Mestries
BACKGROUND: Phoma macdonaldii has been reported as the causal agent of black stem disease (BS) and premature ripening (PR) on sunflower. PR is considered as the most widespread and detrimental disease on sunflower in France. While genetic variability and QTL mapping for partial resistance of sunflower to stem, collar and roots attacks have been reported on plantlets in controlled conditions, this work aims to describe the genetic variability in a subset of a sunflower lines, and for the first time to map QTL involved in PR resistance evaluated in field conditions using controlled inoculation...
October 19, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29052212/technical-review-microscopy-and-image-processing-tools-to-analyze-plant-chromatin-practical-considerations
#18
Célia Baroux, Veit Schubert
In situ nucleus and chromatin analyses rely on microscopy imaging that benefits from versatile, efficient fluorescent probes and proteins for static or live imaging. Yet the broad choice in imaging instruments offered to the user poses orientation problems. Which imaging instrument should be used for which purpose? What are the main caveats and what are the considerations to best exploit each instrument's ability to obtain informative and high-quality images? How to infer quantitative information on chromatin or nuclear organization from microscopy images? In this review, we present an overview of common, fluorescence-based microscopy systems and discuss recently developed super-resolution microscopy systems, which are able to bridge the resolution gap between common fluorescence microscopy and electron microscopy...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29052191/histone-h1-purification-and-post-translational-modification-profiling-by-high-resolution-mass-spectrometry
#19
Maciej Kotliński, Andrzej Jerzmanowski
It has proven particularly difficult to purify Linker (H1) histones from the model plant Arabidopsis thaliana. This is most likely due to its low nuclear DNA content and the abundance of substances that interfere with protein isolation. These problems have hindered the use of Arabidopsis for in-depth characterization of nuclear proteins by modern techniques based on mass spectrometry (MS). Here, we describe an improved methodology for preparing pure Arabidopsis H1s and separating them by HPLC into fractions corresponding to nonallelic variants...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29052185/identification-of-differentially-methylated-regions-in-the-genome-of-arabidopsis-thaliana
#20
Kamal Kishore, Mattia Pelizzola
DNA methylation profiling in the epigenome of Arabidopsis thaliana (Arabidopsis) has provided great insights in the role of this epigenetic mark for the regulation of transcription in plants, and is often based on high-throughput sequencing. The analysis of these data involves a series of steps including quality checks, filtering, alignment, identification of methyl-cytosines, and the identification of differentially methylated regions. This chapter outlines the computational methodology required to profile genome-wide differential methylation patterns based on publicly available Arabidopsis base-resolution bisulfite sequencing data...
2018: Methods in Molecular Biology
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