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https://www.readbyqxmd.com/read/28332702/the-mtp1-promoters-from-arabidopsis-halleri-reveal-cis-regulating-elements-for-the-evolution-of-metal-tolerance
#1
Elisa Fasani, Giovanni DalCorso, Claudio Varotto, Mingai Li, Giovanna Visioli, Monica Mattarozzi, Antonella Furini
In the hyperaccumulator Arabidopsis halleri, the zinc (Zn) vacuolar transporter MTP1 is a key component of hypertolerance. Because protein sequences and functions are highly conserved between A. halleri and Arabidopsis thaliana, Zn tolerance in A. halleri may reflect the constitutively higher MTP1 expression compared with A. thaliana, based on copy number expansion and different cis regulation. Three MTP1 promoters were characterized in A. halleri ecotype I16. The comparison with the A. thaliana MTP1 promoter revealed different expression profiles correlated with specific cis-acting regulatory elements...
March 23, 2017: New Phytologist
https://www.readbyqxmd.com/read/28330562/zinc-biofortification-improves-phytochemicals-and-amino-acidic-profile-in-brassica-oleracea-cv-bronco
#2
Yurena Barrameda-Medina, Begoña Blasco, Marco Lentini, Sergio Esposito, Nieves Baenas, Diego A Moreno, Juan M Ruiz
Zn deficiency is currently listed as a major risk factor for human health. Recently, a complimentary solution to mineral malnutrition termed 'biofortification' has been proposed. The aim of this study was to investigate the possible effects of a Zn-biofortification program on Zn levels, amino acidic profile and the phytochemicals content in an edible leafy vegetable, such as Brassica oleracea cv. Bronco. Our results indicate that supplementation of 80-100μM Zn is optimal for maintaining the normal growth of plants and to promote the major Zn concentration in the edible part of B...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28330314/bioremediation-of-heavy-metals-using-an-endophytic-bacterium-paenibacillus-sp-rm-isolated-from-the-roots-of-tridax-procumbens
#3
M Govarthanan, R Mythili, T Selvankumar, S Kamala-Kannan, A Rajasekar, Young-Cheol Chang
The aim of the present study was to assess the bioremediation potential of endophytic bacteria isolated from roots of Tridax procumbens plant. Five bacterial endophytes were isolated and subsequently tested for minimal inhibitory concentration (MIC) against different heavy metals. Amongst the five isolates, strain RM exhibited the highest resistance to copper (750 mg/l), followed by zinc (500 mg/l), lead (450 mg/l), and arsenic (400 mg/l). Phylogenetic analysis of the 16S rDNA sequence suggested that strain RM was a member of genus Paneibacillus...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28322087/physiological-role-of-exogenous-nitric-oxide-in-improving-performance-yield-and-some-biochemical-aspects-of-sunflower-plant-under-zinc-stress
#4
Samia Ageeb Akladious, Heba Ibrahim Mohamed
The present study was undertaken to examine the possible roles of sodium nitroprusside in protection against oxidative damage due to zinc toxicity in sunflower plants. Physiochemical parameters in sunflower plants exposed to Zn(2+) (100, 200 and 300 mg/kg soil) alone or combined with SNP were measured. The results showed that excess of Zn decreased plant growth, seed yield components and photosynthetic pigments content. On the other hand, Zn stress increased the level of non-enzymatic antioxidants (ascorbic acid and reduced glutathione) and enzymatic antioxidants (superoxide dismutase, ascrobate peroxidase and glutathione reductase), coupled with the appearance of novel protein bands...
March 2017: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/28318693/the-influence-of-dual-substrate-layer-extensive-green-roofs-on-rainwater-runoff-quantity-and-quality
#5
Xiaoou Wang, Yimei Tian, Xinhua Zhao
This study investigates the ability of dual-substrate-layer extensive green roofs to retain rainwater and reduce pollutant leaching. The substrates in dual-substrate-layer green roofs consist of an upper organic nutrition layer for plant growth and a lower inorganic adsorption layer for water retention and pollutant reduction. One traditional single-substrate-layer extensive green roof was built for comparison with dual-substrate-layer green roofs. During the experimental period, dual-substrate-layer green roofs supported better natural vegetation growth, with coverage exceeding 90%, while the coverage in single-substrate-layer green roof was over 80%...
March 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28314195/treatment-of-contaminated-greywater-using-pelletised-mine-water-sludge
#6
Suhail N Abed, Suhad A Almuktar, Miklas Scholz
Precipitated sludge (ochre) obtained from a mine water treatment plant was considered as an adsorbent substance for pollutants, since ochre is relatively free from problematic levels of toxic elements, which could impair on the quality of water to be treated. Artificially created ochre pellets from mixing Portland cement with raw ochre sludge were utilised to remediate either high (HC) or low (LC) contaminated synthetic greywater (SGW) in mesocosm-scale stabilisation ponds at 2-day and 7-day contact times under real weather conditions in Salford...
March 14, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28299516/effects-of-nitrogen-and-water-addition-on-trace-element-stoichiometry-in-five-grassland-species
#7
Jiangping Cai, Jacob Weiner, Ruzhen Wang, Wentao Luo, Yongyong Zhang, Heyong Liu, Zhuwen Xu, Hui Li, Yuge Zhang, Yong Jiang
A 9-year manipulative experiment with nitrogen (N) and water addition, simulating increasing N deposition and changing precipitation regime, was conducted to investigate the bioavailability of trace elements, iron (Fe), manganese (Mn), copper (Cu), and zinc (Zn) in soil, and their uptake by plants under the two environmental change factors in a semi-arid grassland of Inner Mongolia. We measured concentrations of trace elements in soil and in foliage of five common herbaceous species including 3 forbs and 2 grasses...
March 15, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28298916/transcriptome-analysis-of-flowering-time-genes-under-drought-stress-in-maize-leaves
#8
Kitae Song, Hyo Chul Kim, Seungho Shin, Kyung-Hee Kim, Jun-Cheol Moon, Jae Yoon Kim, Byung-Moo Lee
Flowering time is an important factor determining yield and seed quality in maize. A change in flowering time is a strategy used to survive abiotic stresses. Among abiotic stresses, drought can increase anthesis-silking intervals (ASI), resulting in negative effects on maize yield. We have analyzed the correlation between flowering time and drought stress using RNA-seq and bioinformatics tools. Our results identified a total of 619 genes and 126 transcripts whose expression was altered by drought stress in the maize B73 leaves under short-day condition...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28294107/antifungal-mechanisms-of-zno-and-ag-nanoparticles-to-sclerotinia-homoeocarpa
#9
Junli Li, Hyunkyu Sang, Huiyuan Guo, James T Popko, Lili He, Jason C White, Om Parkash Dhankher, Geunhwa Jung, Baoshan Xing
Fungicides have extensively been used to effectively combat fungal diseases on a range of plant species, but resistance to multiple active ingredients has developed in pathogens such as Sclerotinia homoeocarpa, the causal agent of dollar spot on cool-season turfgrasses. Recently, ZnO and Ag nanoparticles (NPs) have received increased attention due to their antimicrobial activities. In this study, the NPs' toxicity and mechanisms of action were investigated as alternative antifungal agents against S. homoeocarpa isolates that varied in their resistance to demethylation inhibitor (DMI) fungicides...
April 18, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28294074/probiotics-as-a-tool-to-biosynthesize-metallic-nanoparticles-research-reports-and-patents-survey
#10
Nida Ahktar, Kamla Pathak
BACKGROUND: Probiotics are the live microbes that exert beneficial effects on the health of the host cell and thus creating novel nanoformulations via probiotic bacteria have gained tremendous momentum recently. The probiotic bacteria are being employed in synthesizing or more specifically biosynthesizing several nanoparticles like metallic as well as non-metallic nanoparticles. Biosynthesis of metallic nanoparticles is currently focused of research nowadays due to several applications thereof...
March 13, 2017: Recent Patents on Drug Delivery & Formulation
https://www.readbyqxmd.com/read/28293806/morpho-physiological-and-transcriptome-profiling-reveal-novel-zinc-deficiency-responsive-genes-in-rice
#11
Tirthankar Bandyopadhyay, Poonam Mehra, Suboot Hairat, Jitender Giri
Intensive farming has depleted the soil zinc (Zn) availability resulting in decreased crop productivity. Here, we attempt to understand the Zn deficiency response in rice through temporal transcriptome analysis. For this, rice seedlings were raised under Zn-deficient conditions up to 4 weeks followed by Zn re-supply for 3 days. Zn-deficient plants developed characteristic deficiency symptoms such as leaf bronzing, decrease in biomass, total chlorophyll, PSII efficiency, decreased carbonic anhydrase activity and increased ROS production...
March 14, 2017: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/28292607/looking-for-engineered-nanoparticles-enps-in-wastewater-treatment-systems-qualification-and-quantification-aspects
#12
Soohoon Choi, Murray V Johnston, Gen-Suh Wang, C P Huang
The current study developed a rationalized method for the quantification and identification of engineered nanoparticles (ENPs) in wastewaters. A review of current literature revealed that overall, presently available methods focused on single ENP mostly and were applicable mainly to samples of low organic loadings or under well-controlled laboratory conditions. In the present research, procedures including dialysis for desalting and low-temperature oxidation for organic removal were used to pretreat samples of high organic loadings, specifically, municipal wastewater and sludge...
March 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28290617/digital-expression-analysis-of-the-genes-associated-with-salinity-resistance-after-overexpression-of-a-stress-responsive-small-gtp-binding-rabg-protein-in-peanut
#13
J M Sui, G Li, G X Chen, M Y Yu, S T Ding, J S Wang, L X Qiao
The Rab protein family is the largest family of the small GTP-binding proteins. Among them, the RabG genes are known to be responsive to abiotic stresses, but the molecular mechanisms of the stress responses mediated by RabG genes in plants is poorly understood. To investigate the molecular mechanism of AhRabG gene in peanut, transgenic plants overexpressing the AhRabG gene (S6) with relatively higher salinity resistance than the non-transgenic plants (S7) were obtained. Digital gene expression (DGE) sequencing was performed with the leaves of S6 and S7 plants before and after salinity-stress treatment...
March 8, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28288492/correlating-in-vitro-target-oriented-screening-and-docking-inhibition-of-matrix-metalloproteinases-activities-by-flavonoids
#14
Lucia Crascì, Livia Basile, Annamaria Panico, Carmelo Puglia, Francesco P Bonina, Pierluigi Maria Basile, Luisa Rizza, Salvatore Guccione
Metalloproteases are a family of zinc-containing endopeptidases involved in a variety of pathological disorders. The use of flavonoid derivatives as potential metalloprotease inhibitors has recently increased.Particular plants growing in Sicily are an excellent yielder of the flavonoids luteolin, apigenin, and their respective glycoside derivatives (7-O-rutinoside, 7-O-glucoside, and 7-O-glucuronide).The inhibitory activity of luteolin, apigenin, and their respective glycoside derivatives on the metalloproteases MMP-1, MMP-3, MMP-13, MMP-8, and MMP-9 was assessed and rationalized correlating in vitro target-oriented screening and in silico docking...
March 13, 2017: Planta Medica
https://www.readbyqxmd.com/read/28286498/players-over-the-surface-unraveling-the-role-of-exopolysaccharides-in-zinc-biosorption-by-fluorescent-pseudomonas-strain-psd
#15
Anamika Upadhyay, Mandira Kochar, Manchikatla V Rajam, Sheela Srivastava
Fluorescent Pseudomonas strain Psd is a soil isolate, possessing multiple plant growth promoting (PGP) properties and biocontrol potential. In addition, the strain also possesses high Zn(2+) biosorption capability. In this study, we have investigated the role exopolysaccharides (EPS) play in Zn(2+) biosorption. We have identified that alginates are the prime components contributing to Zn(2+) biosorption. Deletion of the alg8 gene, which codes for a sub-unit of alginate polymerase, led to a significant reduction in EPS production by the organism...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28286003/recognition-of-histone-h3k14-acylation-by-morf
#16
Brianna J Klein, Johayra Simithy, Xiaolu Wang, JaeWoo Ahn, Forest H Andrews, Yi Zhang, Jacques Côté, Xiaobing Shi, Benjamin A Garcia, Tatiana G Kutateladze
The monocytic leukemia zinc-finger protein-related factor (MORF) is a transcriptional coactivator and a catalytic subunit of the lysine acetyltransferase complex implicated in cancer and developmental diseases. We have previously shown that the double plant homeodomain finger (DPF) of MORF is capable of binding to acetylated histone H3. Here we demonstrate that the DPF of MORF recognizes many newly identified acylation marks. The mass spectrometry study provides comprehensive analysis of H3K14 acylation states in vitro and in vivo...
March 9, 2017: Structure
https://www.readbyqxmd.com/read/28283949/impact-of-chemical-organic-and-bio-fertilizers-application-on-bell-pepper-capsicum-annuum-l-and-biological-parameters-of-myzus-persicae-sulzer-hem-aphididae
#17
M Mardani-Talaee, J Razmjou, G Nouri-Ganbalani, M Hassanpour, B Naseri
Myzus persicae (Sulzer) is a polyphagous aphid that causes chlorosis, necrosis, stunting, and reduce growth rate of the host plants. In this research, the effects of Zinc sulfate and vermicompost (30%), Bacillus subtilis, Pseudomonas fluorescens, Glomus intraradices, G. intraradices × B. subtilis, and G. intraradices × P. fluorescens compared to control was investigated on the growth characters of Capsicum annuum L. and biological parameters of M. persicae. Different fertilizers caused a significant effect on growth characters of C...
March 11, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28278781/phytoremediation-potential-of-water-caltrop-trapa-natans-l-using-municipal-wastewater-of-the-activated-sludge-process-based-municipal-wastewater-treatment-plant
#18
Vinod Kumar, A K Chopra
Phytoremediation experiments were carried out to assess the phytoremediation potential of water caltrop (Trapa natans L.) using municipal wastewater collected from the activated sludge process- (ASP) based municipal wastewater treatment plant. The results revealed that T. natans significantly (P ≤ .05/P ≤ .01/P ≤ .001) reduced the contents of total dissolved solids (TDS), electrical conductivity (EC), biochemical oxygen demand (BOD5), chemical oxygen demand, total Kjeldahl nitrogen, phosphate ([Formula: see text]), sodium (Na(+)), potassium (K(+)), calcium (Ca(2+)), magnesium (Mg(2+)), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), manganese (Mn), lead (Pb), zinc (Zn), standard plate count, and most probable number of the municipal wastewater after phytoremediation experiments...
February 22, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28277968/vascular-plant-one-zinc-finger-protein-2-is-localized-both-to-the-nucleus-and-stress-granules-under-heat-stress-in-arabidopsis
#19
Misaki Koguchi, Kanako Yamasaki, Tomoko Hirano, Masa H Sato
VASCULAR PLANT ONE-ZINC FINGER (VOZ)1/ and VOZ2 have an ability to bind to the specific cis-element in the AVP1 promoter of Arabidopsis, which function on the PhyB-dependent flowering and possibly in various stress responses as potential transcription factors, although nuclear localization of VOZ proteins is still unclear. In this study, we found that VOZ2 is dispersed throughout the cytoplasm under normal growth conditions, whereas VOZ2 but is transferred not only to the nucleus but also to the cytoplasmic foci under heat stress conditions...
February 25, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28275380/genetic-transformation-and-genomic-resources-for-next-generation-precise-genome-engineering-in-vegetable-crops
#20
REVIEW
Teodoro Cardi, Nunzio D'Agostino, Pasquale Tripodi
In the frame of modern agriculture facing the predicted increase of population and general environmental changes, the securement of high quality food remains a major challenge to deal with. Vegetable crops include a large number of species, characterized by multiple geographical origins, large genetic variability and diverse reproductive features. Due to their nutritional value, they have an important place in human diet. In recent years, many crop genomes have been sequenced permitting the identification of genes and superior alleles associated with desirable traits...
2017: Frontiers in Plant Science
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