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https://www.readbyqxmd.com/read/28732146/medicago-truncatula-zinc-iron-permease6-provides-zinc-to-rhizobia-infected-nodule-cells
#1
Isidro Abreu, Ángela Saéz, Rosario Castro-Rodríguez, Viviana Escudero, Benjamín Rodríguez-Haas, Marta Senovilla, Camille Larue, Daniel Grolimund, Manuel Tejada-Jiménez, Juan Imperial, Manuel González-Guerrero
Zinc is a micronutrient required for symbiotic nitrogen fixation. It has been proposed that in model legume Medicago truncatula, zinc is delivered by the root vasculature into the nodule and released in the infection/differentiation zone. There, transporters must introduce this element into rhizobia-infected cells to metallate the apoproteins that use zinc as a cofactor. MtZIP6 (Medtr4g083570) is a M. truncatula Zinc-Iron Permease (ZIP) that is expressed only in roots and nodules, with the highest expression levels in the infection/differentiation zone...
July 21, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28730426/phytaspase-loaded-mn-doped-zns-quantum-dots-when-embedded-into-chitosan-nanoparticles-leads-to-improved-chemotherapy-of-hela-cells-using-in-cisplatin
#2
Sharmila Narayanan, Deepanjalee Dutta, Neha Arora, Lingaraj Sahoo, Siddhartha Sankar Ghosh
OBJECTIVES: To investigate the potential of recombinant phytaspase loaded manganese (Mn) doped zinc sulphide (ZnS) quantum dots embedded chitosan nanoparticles for augmenting cisplatin induced chemotherapy of HeLa cells. RESULTS: The recombinant phytaspase was cloned into bacterial expression vector PGEX-4T-2. The expressed and purified recombinant plant phytaspase protein from Escherichia coli BL21 was immobilized onto the cationic nanocomposite. Confocal microscopy elucidated the delivery of these luminescent nanocomposites inside cervical cancer HeLa cells...
July 20, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28730330/effect-of-the-phosphogypsum-amendment-of-saline-and-agricultural-soils-on-growth-productivity-and-antioxidant-enzyme-activities-of-tomato-solanum-lycopersicum-l
#3
Mariem Smaoui-Jardak, Walid Kriaa, Mohamed Maalej, Mohamed Zouari, Lotfi Kamoun, Wassim Trabelsi, Ferjani Ben Abdallah, Nada Elloumi
The objective of this study was to investigate the effects of phosphogypsum (PG) amendment on the physiochemical proprieties of saline and agricultural soils along with the growth, productivity and antioxidant enzyme activities of tomato plants ( Solanum lycopersicum L.) grown on the amended soils under controlled conditions. Obtained results showed that the amendment of saline soil (H) by PG induced a decrease in pH as well as in electrical conductivity. However, for the non saline soil (MC), there was a decrease in pH associated with an increase in electrical conductivity...
July 20, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28729226/solanum-paniculatum-l-decreases-levels-of-inflammatory-cytokines-by-reducing-nf-%C3%AE%C2%BAb-t-bet-and-gata3-gene-expression-in-vitro
#4
Raimon Rios, Hugo Bernardino Ferreira da Silva, Norma Vilany Queiroz Carneiro, Anaque de Oliveira Pires, Tamires Cana Brasil Carneiro, Ryan Dos Santos Costa, Cintia Rodrigues Marques, Marta Santos Serafim Machado, Eudes da Silva Velozo, Telma M G da Silva, Tania M S da Silva, Adilva de Souza Conceição, Neuza Maria Alcântara-Neves, Camila Alexandrina Figueiredo
ETHNOPHARMACOLOGICAL RELEVANCE: Solanum paniculatum L., popularly known as jurubeba, is a common subtropical plant from Brazil, Paraguay, Bolivia, and Argentina, that is used in folk medicine for the treatment of anemia, gastrointestinal disorders and inflammatory conditions in general. In addition to that, an ethnobotanical survey in "Todos os Santos" Bay have pointed out S. paniculatum as an herb to treat asthma. Previous publications have shown that S. paniculatum possesses antibiotic, antioxidant and modulatory effects on gastric acid secretion; however, its anti-inflammatory potential remains unexplored...
July 17, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28724762/stability-of-cucumber-necrosis-virus-at-the-quasi-six-fold-axis-affects-zoospore-transmission
#5
Michael B Sherman, Kishore Kakani, D'Ann Rochon, Wen Jiang, Neil R Voss, Thomas J Smith
Cucumber necrosis virus (CNV) is a member of the genus Tombusvirus and has a monopartite positive-sense RNA genome. CNV is transmitted in nature via zoospores of the fungus, Olpidium bornovanus As with other members of the Tombusvirus genus, the CNV capsid swells when exposed to alkaline pH and EDTA. We previously demonstrated that a P73G mutation blocks the virus from zoospore transmission while not significantly affecting replication in plants (1). P73 lies immediately adjacent to a putative zinc binding site (2) that is formed by three icosahedrally related His residues in the N-termini of the C subunit at the quasi 6-fold axes...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28719999/comparison-of-anticancer-activity-of-biocompatible-zno-nanoparticles-prepared-by-solution-combustion-synthesis-using-aqueous-leaf-extracts-of-abutilon-indicum-melia-azedarach-and-indigofera-tinctoria-as-biofuels
#6
G K Prashanth, P A Prashanth, B M Nagabhushana, S Ananda, G M Krishnaiah, H G Nagendra, H M Sathyananda, C Rajendra Singh, S Yogisha, S Anand, Y Tejabhiram
Recently, there has been an upsurge in the use of naturally available fuels for solution combustion synthesis (SCS) of nanoparticles. Although many reports suggest that these biofuels pose less harm to the environment, their strategic advantages and reliability for making NPs has not been discussed. In the present work, we try to address this issue using plant extracts as biofuels for the SCS of zinc oxide nanoparticles as a model system. In the present work, combustion synthesis of ZnO NPs using lactose and aqueous leaf extracts of Abutilon indicum, Melia azedarach, Indigofera tinctoria as biofuels has been carried out...
July 18, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28717650/removal-of-cu-zn-pb-and-cr-from-yangtze-estuary-using-the-phragmites-australis-artificial-floating-wetlands
#7
Xiaofeng Huang, Feng Zhao, Gao Yu, Chao Song, Zhi Geng, Ping Zhuang
Contamination of heavy metals would threaten the water and soil resources; phytoremediation can be potentially used to remediate metal contaminated sites. We constructed the Phragmites australis artificial floating wetlands outside the Qingcaosha Reservoir in the Yangtze Estuary. Water characteristic variables were measured in situ by using YSI Professional Pro Meter. Four heavy metals (copper, zinc, lead, and chromium) in both water and plant tissues were determined. Four heavy metals in estuary water were as follows: 0...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28712501/gene-editing-in-polyploid-crops-wheat-camelina-canola-potato-cotton-peanut-sugar-cane-and-citrus
#8
Donald P Weeks
Polyploid crops make up a significant portion of the major food and fiber crops of the world and include wheat, potato, cotton, apple, peanut, citrus, and brassica oilseeds such as rape, canola, and Camelina. The presence of three sets of chromosomes in triploids, four sets in tetraploids, and six sets in hexaploids present significant challenges to conventional plant breeding and, potentially, to efficient use of rapidly emerging gene and genome-editing systems such as zinc finger nucleases, single-stranded oligonucleotides, TALE effector nucleases, and clustered regularly interspaced short palindromic repeats (CRISPR/Cas9)...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28712500/use-of-zinc-finger-nucleases-for-crop-improvement
#9
John P Davies, Sandeep Kumar, Lakshmi Sastry-Dent
Over the past two decades, new technologies enabling targeted modification of plant genomes have been developed. Among these are zinc-finger nucleases (ZFNs) which are composed of engineered zinc-finger DNA-binding domains fused with a nuclease, generally the FokI nuclease. The zinc-finger domains are composed of a series of four to six 30 amino acid domains that can bind to trinucleotide sequences giving the entire DNA-binding domain specificity to 12-18 nucleotides. Since the FokI nuclease functions as a dimer, pairs of zinc-finger domains are designed to bind upstream and downstream of the cut site which increases the specificity of the complete ZFN to 24-36 nucleotides...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28712494/crispr-cas9-based-genome-editing-in-plants
#10
Yaling Zhang, Xingliang Ma, Xianrong Xie, Yao-Guang Liu
Recently, genome editing technologies have shown great potential in plants. The newly developed clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 system is a new generation of genome editing tool rapidly replacing the earlier zinc finger nucleases and transcription activator-like effector nucleases systems. Indeed, due to its advantages of simplicity and high efficiency, the CRISPR/Cas9-based genome editing system is becoming a powerful tool in plant science research. Here, we introduce the technical features of the plant CRISPR/Cas9-based genome editing system and its applications in plant functional genomics studies and genetic improvement...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28711758/assessing-the-binding-of-cholinesterase-inhibitors-by-docking-and-molecular-dynamics-studies
#11
M Rejwan Ali, Mostafa Sadoqi, Simon G Møller, Allal Boutajangout, Mihaly Mezei
In this report we assessed by docking and molecular dynamics the binding mechanisms of three FDA-approved Alzheimer drugs, inhibitors of the enzyme acetylcholinesterase (AChE): donepezil, galantamine and rivastigmine. Dockings by the softwares Autodock-Vina, PatchDock and Plant reproduced the docked conformations of the inhibitor-enzyme complexes within 2Å of RMSD of the X-ray structure. Free-energy scores show strong affinity of the inhibitors for the enzyme binding pocket. Three independent Molecular Dynamics simulation runs indicated general stability of donepezil, galantamine and rivastigmine in their respective enzyme binding pocket (also referred to as gorge) as well as the tendency to form hydrogen bonds with the water molecules...
June 29, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28708298/the-ecotoxicity-of-zinc-and-zinc-containing-substances-in-soil-consideration-for-metal-moiety-approaches-and-organo-metal-complexes
#12
Ellyn Ritchie, Patrick Boyd, Annamaria Lawson-Halasz, Jalal Hawari, Stacey Saucier, Richard Scroggins, Juliska Princz
Within Canada, screening-level assessments for chemical substances are required in order to determine whether the substances pose a risk to human health and/or the environment, and as appropriate, risk management strategies. In response to the volume of metal and metal-containing substances, process efficiencies were introduced using a metal moiety approach, wherein substances that contain a common metal moiety are assessed simultaneously as a group, wherein the moiety of concern would consist of the metal ion...
July 14, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28704702/plant-architecture-auxin-homeostasis-and-phenol-content-in-arabidopsis-thaliana-grown-in-cadmium-and-zinc-enriched-media
#13
Adriano Sofo, Rocco Bochicchio, Mariana Amato, Nunzia Rendina, Antonella Vitti, Maria Nuzzaci, Maria Maddalena Altamura, Giuseppina Falasca, Federica Della Rovere, Antonio Scopa
A screening strategy using micropropagation glass tubes with a gradient of distances between germinating seeds and a metal-contaminated medium was used for studying alterations in root architecture and morphology of Arabidopsis thaliana treated with cadmium (Cd) and zinc (Zn) at the concentration of 10-20μM and 100-200μM, respectively. Metal concentrations in plant shoots and roots were measured by quadrupole inductively coupled plasma mass spectrometry. After 21days from germination, all plants in the tubes were scanned at high resolution and the root systems analyzed...
July 3, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28704400/genome-wide-analysis-of-the-ccch-zinc-finger-family-identifies-tissue-specific-and-stress-responsive-candidates-in-chickpea-cicer-arietinum-l
#14
Seema Pradhan, Chandra Kant, Subodh Verma, Sabhyata Bhatia
The CCCH zinc finger is a group of proteins characterised by a typical motif consisting of three cysteine residues and one histidine residue. These proteins have been reported to play important roles in regulation of plant growth, developmental processes and environmental responses. In the present study, genome wide analysis of the CCCH zinc finger gene family was carried out in the available chickpea genome. Various bioinformatics tools were employed to predict 58 CCCH zinc finger genes in chickpea (designated CarC3H1-58), which were analysed for their physio-chemical properties...
2017: PloS One
https://www.readbyqxmd.com/read/28699005/study-of-chlordecone-desorption-from-activated-carbons-and-subsequent-dechlorination-by-reduced-cobalamin
#15
Ronald Ranguin, Axelle Durimel, Reeka Karioua, Sarra Gaspard
Since 1972, the French departments of Guadeloupe and Martinique have intensively used organochlorinated pesticides such as chlordecone (CLD) and hexachlorocyclohexane (HCH) isomers to prevent the proliferation of banana weevil (Cosmopolite sordidus). These molecules are stable in the environment, leading to a continuous contamination of soils, water, and food chain in the banana-producing areas. In these polluted areas, water treatment plants are equipped with activated carbon (AC) filters. In order to improve treatment of CLD-contaminated waters by AC, CLD adsorption and desorption kinetic studies are carried out using different ACs produced from sugar cane bagasse as adsorbents and subsequent CLD degradation is performed using reduced vitamin B12 (VB12)...
July 11, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28697468/emission-factors-of-unintentional-hcb-and-pecbz-and-their-correlation-with-pcdd-pcdf
#16
Wenwen Gong, Heidelore Fiedler, Xiaotu Liu, Bin Wang, Gang Yu
Hexachlorobenzene (HCB) and pentachlorobenzene (PeCBz) have been listed as unintentional POPs in the annex of the Stockholm Convention and thus, attracted attention by government and researchers. Since the intentional production and use has ceased in most countries, the unintentional releases to the environment have increased. This study gathered 206 and 78 emission factors (EFs) of unintentional HCB and PeCBz from scientific publications and governmental reports, respectively. Most of the EFs referred to the release vector "air" (EFAir) and to a less extent to "product" (EFProduct)...
July 8, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28693113/multiple-factors-impact-the-contents-of-heavy-metals-in-vegetables-in-high-natural-background-area-of-china
#17
Yandong Gan, Lihong Wang, Guiqiang Yang, Jiulan Dai, Renqing Wang, Wenxing Wang
A field survey was conducted to investigate the concentrations of chromium (Cr), nickel (Ni), copper (Cu), zinc (Zn), cadmium (Cd) and lead (Pb) in vegetables, corresponding cultivated soils and irrigation waters from 36 open sites in high natural background area of Wuzhou, South China. Redundancy analysis, Spearman's rho correlation analysis and multiple regression analysis were adopted to evaluate the contributions of impacting factors on metal contents in the edible parts of vegetables. This study concluded that leafy and root vegetables had relatively higher metal concentrations and adjusted transfer factor values compared to fruiting vegetables according to nonparametric tests...
June 18, 2017: Chemosphere
https://www.readbyqxmd.com/read/28689290/ricinus-communis-l-castor-bean-as-a-potential-candidate-for-revegetating-industrial-waste-contaminated-sites-in-peri-urban-greater-hyderabad-remarks-on-seed-oil
#18
Ravi Kiran Boda, Narasimha Vara Prasad Majeti, Sateesh Suthari
Ricinus communis L. (castor bean or castor oil plant) was found growing on metal-contaminated sites (4) of peri-urban Greater Hyderabad comprises of erstwhile industrial areas viz Bollaram, Patancheru, Bharatnagar, and Kattedan industrial areas. During 2013-2017, about 60 research papers have appeared focusing the role of castor bean in phytoremediation of co-contaminated soils, co-generation of biomaterials, and environmental cleanup, as bioenergy crop and sustainable development. The present study is focused on its use as a multipurpose phytoremediation crop for phytostabilization and revegetation of waste disposed peri-urban contaminated soils...
July 9, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28686086/a-risk-assessment-model-for-bacterial-leaf-spot-bls-of-pepper-capsicum-annuum-l-caused-by-xanthomonas-euvesicatoria-based-on-concentrations-of-macronutrients-and-micronutrients-and-micronutrient-ratios
#19
Bhabesh Dutta, David B Langston, Xuelin Luo, Jeremy Kichler, Scott Carlson, Ron Gitaitis
The phytopathogenic bacterium Xanthomonas euvesicatoria causes bacterial leaf spot (BLS) of pepper and has a worldwide distribution. BLS is difficult to control and an integrated management strategy that incorporates crop rotation, use of clean seeds and clean plants, weed control, resistant varieties, and applications of bactericides, biocontrol agents, and systemic acquired resistance (SAR) inducers is generally recommended. However, even with that arsenal of weapons, BLS can still be responsible for severe losses under favorable environmental conditions...
July 7, 2017: Phytopathology
https://www.readbyqxmd.com/read/28684847/chrysanthemum-wrky-gene-dgwrky5-enhances-tolerance-to-salt-stress-in-transgenic-chrysanthemum
#20
Qian-Yu Liang, Yin-Huan Wu, Ke Wang, Zhen-Yu Bai, Qing-Lin Liu, Yuan-Zhi Pan, Lei Zhang, Bei-Bei Jiang
WRKY transcription factors play important roles in plant growth development, resistance and substance metabolism regulation. However, the exact function of the response to salt stress in plants with specific WRKY transcription factors remains unclear. In this research, we isolated a new WRKY transcription factor DgWRKY5 from chrysanthemum. DgWRKY5 contains two WRKY domains of WKKYGQK and two C2H2 zinc fingers. The expression of DgWRKY5 in chrysanthemum was up-regulated under various treatments. Meanwhile, we observed higher expression levels in the leaves contrasted with other tissues...
July 6, 2017: Scientific Reports
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