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https://www.readbyqxmd.com/read/28108976/phenotypic-and-biochemical-alterations-in-relation-to-mt2-gene-expression-in-plantago-ovata-forsk-under-zinc-stress
#1
Paulami Pramanick, Anindita Chakraborty, Sarmistha Sen Raychaudhuri
Plantago ovata Forsk is an annual herb with immense medicinal importance, the seed and husk of which is used in the treatment of chronic constipation, irritable bowel syndrome, diarrhea since ancient times. Zinc, an essential metal, is required by plants as they form important components of zinc finger proteins and also aid in synthesis of photosynthetic pigments such as chlorophyll. However, in excess amount Zn causes chlorosis of leaf and shoot tissues and generate reactive oxygen species. The present study is aimed at investigating the changes in expression levels of MT2 gene in Plantago ovata under zinc stress...
January 20, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28108870/elucidating-the-interactions-and-phytotoxicity-of-zinc-oxide-nanoparticles-with-agriculturally-beneficial-bacteria-and-selected-crop-plants
#2
Anuraag Boddupalli, Rameshwar Tiwari, Anamika Sharma, Surender Singh, Radha Prasanna, Lata Nain
There is a growing interest in the use of bioinoculants to assist mineral fertilizers in improving crop production and yield. Azotobacter and Pseudomonas are two agriculturally relevant strains of bacteria which have been established as efficient bioinoculants. An experiment involving addition of graded concentrations of zinc oxide (ZnO) nanoparticles was undertaken using log phase cultures of Azotobacter and Pseudomonas. Growth kinetics revealed a clear trend of gradual decrease with Pseudomonas; however, Azotobacter exhibited a twofold enhancement in growth with increase in the concentration of ZnO concentration...
January 20, 2017: Folia Microbiologica
https://www.readbyqxmd.com/read/28107777/the-dc1-domain-protein-vacuoleless-gametophytes-is-essential-for-female-and-male-gametophyte-development-in-arabidopsis
#3
Sebastián D'Ippólito, Leonardo Agustín Arias, Claudia Anahí Casalongué, Gabriela Carolina Pagnussat, Diego Fernando Fiol
In this work we identified VACUOLELESS GAMETOPHYTES (VLG) as a DC1 domain containing protein present in the endomembrane system essential for both female and male gametophyte development. VLG was originally annotated as a gene coding for an unknown function protein containing DC1 domains. DC1 domains are cysteine and histidine -rich zinc finger domains found exclusively in the plant Kingdom that have been named based on its similarity with the C1 domain present in protein kinase C (PKC). In Arabidopsis, both male and female gametophytes are characterized by the formation of a big vacuole early in development, which is absent in vlg mutant plants...
January 20, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28107731/natural-amelioration-of-zinc-oxide-nanoparticle-toxicity-in-fenugreek%C3%A2-trigonella-foenum-gracum-by-arbuscular-mycorrhizal-glomus-intraradices-secretion-of-glomalin
#4
Narges Ghasemi Siani, Seyfollah Fallah, Lok Raj Pokhrel, Ali Rostamnejadi
Owing to rising production and use of engineered nanoparticles (ENPs) in the myriad of consumer applications, ENPs are being released into the environment where their potential fate and effects have remained unclear. With naturally occurring arbuscular mycorrhizal fungus (AMF; Glomus intraradices) in soils, their influence (positive or negative) on ENPs toxicity in plants is not well documented. Herein, we investigated potential influence of AMF on the growth and development in fenugreek (Trigonella foenum-graecum) under varied Zinc oxide nanoparticles (ZnONPs) treatments (0, 125, 250, 375 and 500 μg g(-1))...
January 3, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28106816/nutrient-patterns-associated-with-fasting-glucose-and-glycated-haemoglobin-levels-in-a-black-south-african-population
#5
Tinashe Chikowore, Pedro T Pisa, Tertia van Zyl, Edith J M Feskens, Edelweiss Wentzel-Viljoen, Karin R Conradie
Type 2 diabetes (T2D) burden is increasing globally. However, evidence regarding nutrient patterns associated with the biomarkers of T2D is limited. This study set out to determine the nutrient patterns associated with fasting glucose and glycated haemoglobin the biomarkers of T2D. Factor analysis was used to derive nutrient patterns of 2010 participants stratified by urban/rural status and gender. Principal Component Analysis (PCA) was applied to 25 nutrients, computed from the quantified food frequency questionnaires (QFFQ)...
January 19, 2017: Nutrients
https://www.readbyqxmd.com/read/28105609/effect-of-zinc-and-copper-nanoparticles-on-drought-resistance-of-wheat-seedlings
#6
Nataliya Taran, Volodymyr Storozhenko, Nataliia Svietlova, Ludmila Batsmanova, Viktor Shvartau, Mariia Kovalenko
The effect of a colloidal solution of Cu,Zn-nanoparticles on pro-oxidative/antioxidative balance and content of photosynthetic pigments and leaf area of winter wheat plants of steppe (Acveduc) and forest-steppe (Stolichna) ecotypes was investigated in drought conditions. It has been shown that Cu,Zn-nanoparticles decreased the negative effect of drought action upon plants of steppe ecotype Acveduc. In particular, increased activity of antioxidative enzymes reduced the level of accumulation of thiobarbituric acid reactive substances (TBARS) and stabilized the content of photosynthetic pigments and increased relative water content in leaves...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28104557/a-comparative-study-on-capability-of-different-tree-species-in-accumulating-heavy-metals-from-soil-and-ambient-air
#7
Ahmad Alahabadi, Mohammad Hassan Ehrampoush, Mohammad Miri, Hamideh Ebrahimi Aval, Samira Yousefzadeh, Hamid Reza Ghaffari, Ehsan Ahmadi, Parvaneh Talebi, Zeynab Abaszadeh Fathabadi, Fatemeh Babai, Ali Nikoonahad, Kiomars Sharafi, Ahmad Hosseini-Bandegharaei
Heavy metals (HMs) in the urban environment can be bio-accumulated by plant tissues. The aim of this study was to compare fourteen different tree species in terms of their capability to accumulate four airborne and soilborne HMs including; zinc (Zn), copper (Cu), lead (Pb), and cadmium (Cd). Samplings were performed during spring, summer, and fall seasons. To compare bioaccumulation ability, bio-concentration factor (BCF), comprehensive bio-concentration index (CBCI), and metal accumulation index (MAI) were applied...
January 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/28103776/small-and-hungry-micrornas-in-micronutrient-homeostasis-of-plants
#8
Prashanti Patel, Karuna Yadav, Thumballi Ramabhatta Ganapathi
MicroRNAs are emerging players in plant development and response to stresses, both biotic and abiotic such as micronutrient deficiency. These small RNAs regulate cognate downstream targets either by transcript cleavage or translational inhibition. Micronutrient deficiencies lead to poor quality and yield of crops and impaired human health. Over the years several microRNAs have been identified which regulate expression of genes controlling uptake, mobilization and homeostasis of macronutrients such as nitrogen, phosphorus and sulfur to ensure sufficiency without toxicity...
January 17, 2017: MicroRNA
https://www.readbyqxmd.com/read/28095469/characterization-of-dof-transcription-factors-and-their-responses-to-osmotic-stress-in-poplar-populus-trichocarpa
#9
Han Wang, Shicheng Zhao, Yuchi Gao, Jingli Yang
The DNA-binding One Zinc Finger (Dof) genes are ubiquitous in many plant species and are especial transcription regulators that participate in plant growth, development and various procedures, including biotic and abiotic stress reactions. In this study, we identified 41 PtrDof members from Populus trichocarpa genomes and classified them into four groups. The conserved motifs and gene structures of some PtrDof genes belonging to the same subgroup were almost the same. The 41 PtrDof genes were dispersed on 18 of the 19 Populus chromosomes...
2017: PloS One
https://www.readbyqxmd.com/read/28093838/fusaric-acid-contributes-to-virulence-of-fusarium-oxysporum-on-plant-and-mammalian-hosts
#10
Cristina López-Díaz, Vahid Rahjoo, Michael Sulyok, Veronica Ghionna, Adela Martín-Vicente, Javier Capilla, Antonio Di Pietro, Manuel S López-Berges
Fusaric acid (FA) is among the oldest identified secondary metabolites produced by Fusarium species, known for a long time to display strong phytotoxicity and moderate toxicity to animal cells; however, the cellular targets of FA as well as its function in fungal pathogenicity remain unknown. Here, we investigated the role of FA in Fusarium oxysporum, a soil-borne cross-kingdom pathogen that causes vascular wilt on more than a hundred plant species and opportunistic infections in humans. Targeted deletion of fub1, encoding a predicted orthologue of the polyketide synthase involved in FA biosynthesis in F...
January 17, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28092765/cytotoxic-genotoxic-and-mutagenic-evaluation-of-surface-waters-from-a-coal-exploration-region
#11
Cynthia Silva Porta, Débora Lemes Dos Santos, Hélio Vieira Bernardes, Bruno Corrêa Bellagamba, Anaí Duarte, Johnny Ferraz Dias, Fernanda Rabaioli da Silva, Mauricio Lehmann, Juliana da Silva, Rafael Rodrigues Dihl
Coal mining generates a considerable amount of waste, which is disposed of in piles or dams near mining sites. As a result, leachates may reach rivers and streams, promoting the wide dispersion of contaminants in solution and as particulate matter. The present study evaluated the cytotoxic, genotoxic, and mutagenic action of surface waters collected around a thermoelectric power plant and the largest mining area in Brazil (Candiota). Four sites in Candiota stream were selected, and samples were collected in winter and summer...
January 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/28092617/supplementation-of-pigs-diet-with-zinc-and-copper-as-alternative-to-conventional-antimicrobials
#12
B Dębski
Modern commercial pig farming systems inflict increased stress in animals, which often leads to various negative changes in the gastro-intestinal tract, especially in the case of piglets. Ban of antibiotics, used as growth promoters, has caused a need for alternatives to conventional antimicrobials in swine diets. Use of pre-/or probiotics, organic acids and plant extracts is often recommended, but it seems that zinc oxide and cooper salts, which were traditionally included in high doses to piglets diet, possess the highest efficacy...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28081140/bnlate-a-cys2-his2-type-zinc-finger-protein-enhances-silique-shattering-resistance-by-negatively-regulating-lignin-accumulation-in-the-silique-walls-of-brassica-napus
#13
Zhangsheng Tao, Yi Huang, Lida Zhang, Xinfa Wang, Guihua Liu, Hanzhong Wang
Silique shattering resistance is one of the most important agricultural traits in oil crop breeding. Seed shedding from siliques prior to and during harvest causes devastating losses in oilseed yield. Lignin biosynthesis in the silique walls is thought to affect silique-shattering resistance in oil crops. Here, we identified and characterized B. napus LATE FLOWERING (BnLATE), which encodes a Cys2/His2-type zinc-finger protein. Heterologous expression of BnLATE under the double enhanced CaMV 35S promoter (D35S) in wild-type Arabidopsis plants resulted in a marked decrease in lignification in the replum, valve layer (carpel) and dehiscence zone...
2017: PloS One
https://www.readbyqxmd.com/read/28076430/effects-of-zn-deficiency-and-bicarbonate-on-the-growth-and-photosynthetic-characteristics-of-four-plant-species
#14
Kuan Zhao, Yanyou Wu
Calcareous soils are characterized by low nutrient contents, high bicarbonate (HCO3-) content, and high alkalinity. The effects of HCO3- addition under zinc-sufficient (+Zn) and zinc-deficient (-Zn) conditions on the growth and photosynthetic characteristics of seedlings of two Moraceae species (Broussonetia papyrifera and Morus alba) and two Brassicaceae species (Orychophragmus violaceus and Brassica napus) were investigated. These four species were hydroponically grown in nutrient solution with 0 mM Zn (-Zn) or 0...
2017: PloS One
https://www.readbyqxmd.com/read/28070325/comparative-study-on-proximate-functional-mineral-and-antinutrient-composition-of-fermented-defatted-and-protein-isolate-of-parkia-biglobosa-seed
#15
Bolajoko I Ogunyinka, Babatunji E Oyinloye, Foluso O Osunsanmi, Abidemi P Kappo, Andrew R Opoku
The use of plant-derived foods in the prevention, treatment, and management of metabolic diseases especially diabetes has gained prominence; this has been associated with their physicochemical properties. This study was conducted to compare the proximate, functional, mineral, and antinutrient composition of the fermented seeds, the defatted seeds, and the protein isolate from Parkia biglobosa seeds. The results showed that the fermented, defatted, and protein isolate varied in composition within the parameters studied...
January 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28068396/effects-of-pulp-and-na-bentonite-amendments-on-the-mobility-of-trace-elements-soil-enzymes-activity-and-microbial-parameters-under-ex-situ-aided-phytostabilization
#16
Daniel Wasilkowski, Anna Nowak, Grażyna Płaza, Agnieszka Mrozik
The objective of this study was to explore the potential use of pulp (by-product) from coffee processing and Na-bentonite (commercial product) for minimizing the environmental risk of Zn, Pb and Cd in soil collected from a former mine and zinc-lead smelter. The effects of soil amendments on the physicochemical properties of soil, the structural and functional diversity of the soil microbiome as well as soil enzymes were investigated. Moreover, biomass of Festuca arundinacea Schreb. (cultivar Asterix) and the uptake of trace elements in plant tissues were studied...
2017: PloS One
https://www.readbyqxmd.com/read/28061412/nature-of-fly-ash-amendments-differently-influences-oxidative-stress-alleviation-in-four-forest-tree-species-and-metal-trace-element-phytostabilization-in-aged-contaminated-soil-a-long-term-field-experiment
#17
Sonia Labidi, Stéphane Firmin, Anthony Verdin, Géraldine Bidar, Frédéric Laruelle, Francis Douay, Pirouz Shirali, Joël Fontaine, Anissa Lounès-Hadj Sahraoui
Aided phytostabilization using coal fly ashes (CFAs) is an interesting technique to clean-up polluted soils and valorizing industrial wastes. In this context, our work aims to study the effect of two CFAs: silico-aluminous (CFA1) and sulfo-calcic (CFA2) ones, 10 years after their addition, on the phytostabilization of a highly Cd (cadmium), Pb (lead) and Zn (zinc) contaminated agricultural soil, with four forest tree species: Robinia pseudoacacia, Alnus glutinosa, Acer pseudoplatanus and Salix alba. To assess the effect of CFAs on trees, leaf fatty acid composition, malondialdehyde (MDA), oxidized and reduced glutathione contents ratio (GSSG: GSH), 8-hydroxy-2'-deoxyguanosine (8-OHdG), Peroxidase (PO) and Superoxide dismutase (SOD) activities were examined...
January 3, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28056394/facile-biosynthesis-characterization-and-solar-assisted-photocatalytic-effect-of-zno-nanoparticles-mediated-by-leaves-of-l-speciosa
#18
V Sai Saraswathi, J Tatsugi, Paik-Kyun Shin, K Santhakumar
Synthesis of metal oxide nanoparticles using novel methodologies always attracts great importance in research. The use of plant extract to synthesize nano-particle has been considered as one of the eco-friendly methods. This paper describes the biosynthetic route of preparation of zinc oxide nanoparticles (ZnO NPs) from the Lagerstroemia speciosa leaf extract. This approach appears to be low-cost preparation and alternative method to conventional methods. Highly stable and hexagonal phase ZnO NPs with average particle size of 40nm were synthesized and characterized by UV-Vis absorption spectroscopy (surface Plasmon resonance), Fourier transform infrared spectroscopy (surface functionalities), X-ray Diffraction analysis (crystallinity), TEM and SEM (size and morphology), Energy Dispersive X-ray spectroscopy (elemental composition), Thermogravimetric analysis (weight loss) and Zeta potential (stability)...
December 28, 2016: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28055972/integrative-genomic-and-transcriptomic-analysis-for-pinpointing-recurrent-alterations-of-plant-homeodomain-genes-and-their-clinical-significance-in-breast-cancer
#19
Huimei Yu, Yuanyuan Jiang, Lanxin Liu, Wenqi Shan, Xiaofang Chu, Zhe Yang, Zeng-Quan Yang
A wide range of the epigenetic effectors that regulate chromatin modification, gene expression, genomic stability, and DNA repair contain structurally conserved domains called plant homeodomain (PHD) fingers. Alternations of several PHD finger-containing proteins (PHFs) due to genomic amplification, mutations, deletions, and translocations have been linked directly to various types of cancer. However, little is known about the genomic landscape and the clinical significance of PHFs in breast cancer. Hence, we performed a large-scale genomic and transcriptomic analysis of 98 PHF genes in breast cancer using TCGA and METABRIC datasets and correlated the recurrent alterations with clinicopathological features and survival of patients...
December 31, 2016: Oncotarget
https://www.readbyqxmd.com/read/28052433/diverse-functions-of-multidrug-and-toxin-extrusion-mate-transporters-in-citric-acid-efflux-and-metal-homeostasis-in-medicago-truncatula
#20
Junjie Wang, Qiuqiang Hou, Penghui Li, Lina Yang, Xuecheng Sun, Vagner A Benedito, Jiangqi Wen, Beibei Chen, Kirankumar S Mysore, Jian Zhao
The MATE transporter family comprises 70 members in the Medicago truncatula genome, and they play seemingly important, yet mostly uncharacterized, physiological functions. Here, we employed bioinformatics and molecular genetics to identify and characterize MATE transporters involved in citric acid export, Al(3+) tolerance and Fe translocation. MtMATE69 is a citric acid transporter induced by Fe-deficiency. Overexpression of MtMATE69 in hairy roots altered Fe homeostasis and hormone levels under Fe-deficient or Fe-oversupplied conditions...
January 4, 2017: Plant Journal: for Cell and Molecular Biology
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