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https://www.readbyqxmd.com/read/29149563/zein-nanoparticles-uptake-by-hydroponically-grown-soybean-plants
#1
Kurt Ristroph, Carlos E Astete, Ede Bodoki, Cristina M Sabliov
In the interest of developing and characterizing a polymeric nanoparticle pesticide delivery vehicle to soybeans, zein nanoparticle (ZNP) uptake by the roots and biodistribution to the leaves of soybean plants was measured. Zein was tagged with fluorescein isothiocyanate (FITC) and made into nanoparticles (135±3 nm diameter. 0.202±0.034 PDI and 81±4 mV zeta-potential at pH 6) using an emulsion-diffusion method. After ten days of hydroponic exposure, association between particles and roots of plants was found to vary based on bulk nanoparticle concentration...
November 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29146258/screening-of-tropically-derived-multi-trait-plant-growth-promoting-rhizobacteria-and-evaluation-of-corn-and-soybean-colonization-ability
#2
Bruna Durante Batista, Paulo Teixeira Lacava, Andrea Ferrari, Natalia Sousa Teixeira-Silva, Maria Letícia Bonatelli, Sarina Tsui, Mateus Mondin, Elliot Watanabe Kitajima, José Odair Pereira, João Lúcio Azevedo, Maria Carolina Quecine
The present study assessed the plant growth-promoting (PGP) traits and diversity of culturable rhizobacteria associated with guarana (Paullinia cupana), a typical tropical plant. Ninety-six bacteria were isolated, subjected to biochemical tests, and identified by partial or total 16S rDNA sequencing. Proteobacteria and Firmicutes were the dominant rhizospheric phyla found, and Burkholderia and Bacillus were the most abundant genera. Thirteen strains exhibited the four PGP traits evaluated, and most of them belonged to the genus Burkholderia...
January 2018: Microbiological Research
https://www.readbyqxmd.com/read/29146257/klebsiella-sp-confers-enhanced-tolerance-to-salinity-and-plant-growth-promotion-in-oat-seedlings-avena-sativa
#3
Swapnil Sapre, Iti Gontia-Mishra, Sharad Tiwari
Plant growth and yield is adversely affected by soil salinity. Salt tolerant plant growth-promoting rhizobacteria (PGPR) strain IG 3 was isolated from rhizosphere of wheat plants. The isolate IG 3 was able to grow in presence of NaCl ranging from 0 to 20% in Luria Bertani medium. The present study was planned to evaluate the role of inoculation of PGPR strain IG 3 and its efficacy in augmenting salt tolerance in oat (Avena sativa) under NaCl stress (100mM). The physiological parameter such as shoot length, root length, shoot dry weight, root dry weight and relative water content (RWC) were remarkably higher in IG 3 inoculated plants in comparison to un-inoculated plants under NaCl stress...
January 2018: Microbiological Research
https://www.readbyqxmd.com/read/29146075/persistent-organic-pollutant-emission-via-dust-deposition-throughout-pakistan-spatial-patterns-regional-cycling-and-their-implication-for-human-health-risks
#4
Muhammad Sohail, Syed Ali Musstjab Akber Shah Eqani, Joel Podgorski, Avit Kumar Bhowmik, Adeel Mahmood, Nadeem Ali, Tara Sabo-Attwood, Habib Bokhari, Heqing Shen
In the current study, Persistent Organic Pollutants (POPs) in outdoor dustfall was monitored for the first time along the Indus river system of Pakistan. Among the studied OCPs (ng/g, dry weight), DDTs (0.16-62) were the predominant contaminants identified in deposited dust followed by HCHs (0.1-10.2), HCB (0.09-7.4) and chlordanes (0.1-2.8). The indicative diagnostic ratio for DDTs and HCHs suggested recent emission of DDTs as well as historical emission of both chemicals in regions where they were used for crop protection and malarial control...
November 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29145593/root-respiratory-burst-oxidase-homologue-dependent-h2o2-production-confers-salt-tolerance-on-a-grafted-cucumber-by-controlling-na-exclusion-and-stomatal-closure
#5
Mengliang Niu, Yuan Huang, Shitao Sun, Jingyu Sun, Haishun Cao, Sergey Shabala, Zhilong Bie
Plant salt tolerance can be improved by grafting onto salt-tolerant rootstocks. However, the underlying signaling mechanisms behind this phenomenon remain largely unknown. To address this issue, we used a range of physiological and molecular techniques to study responses of self-grafted and pumpkin-grafted cucumber plants exposed to 75 mM NaCl stress. Pumpkin grafting significantly increased the salt tolerance of cucumber plants, as revealed by higher plant dry weight, chlorophyll content and photochemical efficiency (Fv/Fm), and lower leaf Na+ content...
November 14, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29145471/arbuscular-mycorrhizal-strategy-for-zinc-mycoremediation-and-diminished-translocation-to-shoots-and-grains-in-wheat
#6
Abdelghafar M Abu-Elsaoud, Nivien A Nafady, Ahmed M Abdel-Azeem
Mycoremediation is an on-site remediation strategy, which employs fungi to degrade or sequester contaminants from the environment. The present work focused on the bioremediation of soils contaminated with zinc by the use of a native mycorrhizal fungi (AM) called Funneliformis geosporum (Nicol. & Gerd.) Walker & Schüßler. Experiments were performed using Triticum aestivum L. cv. Gemmeza-10 at different concentrations of Zn (50, 100, 200 mg kg-1) and inoculated with or without F. geosporum. The results showed that the dry weight of mycorrhizal wheat increased at Zn stressed plants as compared to the non-Zn-stressed control plants...
2017: PloS One
https://www.readbyqxmd.com/read/29145058/occurrence-distribution-and-ecological-risks-of-phthalate-esters-in-the-seawater-and-sediment-of-changjiang-river-estuary-and-its-adjacent-area
#7
Ze-Ming Zhang, Hong-Hai Zhang, Jing Zhang, Qian-Wen Wang, Gui-Peng Yang
A total of 133 seawater samples and 17 sediment samples were collected from 81 sampling sites in the Changjiang River Estuary and its adjacent area and were analyzed for 16 phthalate esters (PAEs). The Σ16 PAE concentrations in the seawater and sediment samples ranged from 180.3ng·L(-1) to 3421ng·L(-1) and from 0.48μg·g(-1) to 29.94μg·g(-1)dry weight (dw), respectively, with mean values of 943.6ng·L(-1) and 12.88μg·g(-1). The distribution of ∑16PAE concentrations in the water column showed that PAE concentrations in the bottom samples were higher than those in the surface samples (except the transect C located inside the Changjiang River Estuary), with the maxima appearing in the bottom layer at the offshore stations...
November 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29143983/growth-of-doxorubicin-resistant-undifferentiated-spindle-cell-sarcoma-pdox-is-arrested-by-metabolic-targeting-with-recombinant-methioninase
#8
Kentaro Igarashi, Shukuan Li, Qinghong Han, Yuying Tan, Kei Kawaguchi, Takashi Murakami, Tasuku Kiyuna, Kentaro Miyake, Yunfeng Li, Scott D Nelson, Sarah M Dry, Arun S Singh, Irmina A Elliott, Tara A Russell, Mark A Eckardt, Norio Yamamoto, Katsuhiro Hayashi, Hiroaki Kimura, Shinji Miwa, Hiroyuki Tsuchiya, Fritz C Eilber, Robert M Hoffman
Undifferentiated spindle-cell sarcoma (USCS) is a recalcitrant -cancer in need of individualized therapy. A high-grade USCS from a striated muscle of a patient was grown orthotopically in the right biceps femoris muscle of nude mice to establish a patient-derived orthotopic xenograft (PDOX) model. In a previous study, we evaluated the efficacy of standard first-line chemotherapy of doxorubicin (DOX), gemcitabine (GEM) combined with docetaxel (DOC), compared to pazopanib (PAZ), a multi-targeting tyrosine-kinase inhibitor, in an USCS PDOX model...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29142891/assessment-of-severity-of-malnutrition-in-peritoneal-dialysis-patients-via-malnutrition-inflammatory-score
#9
Afsoon Emami Naeeni, Nazila Poostiyan, Zahra Teimouri, Mojgan Mortazavi, Mojgan Soghrati, Elnaz Poostiyan, Zamzam Paknahad
Background: Regarding to the complications of malnutrition in dialysis patients, using an easy and reliable method for evaluating of malnutrition is important in patients with the end-stage renal disease. Based on the effect of inflammatory factors in malnutrition, A new scale has been designed which is called malnutrition-inflammatory scale (MIS). We designed current study to assess the severity of malnutrition in peritoneal dialysis patients in Isfahan via MIS. Materials and Methods: In this cross-sectional MIS was used for evaluation of malnutrition...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/29138909/improvement-of-biosynthesis-and-accumulation-of-bioactive-compounds-by-elicitation-in-adventitious-root-cultures-of-polygonum-multiflorum
#10
Thanh-Tam Ho, Jong-Du Lee, Cheol-Seung Jeong, Kee-Yoeup Paek, So-Young Park
We examined the effects of abiotic (methyl jasmonate [MeJA] and salicylic acid [SA]) and biotic (yeast extract and chitosan) elicitors for improvement of bioactive compounds production on adventitious root cultures in Polygonum multiflorum. The application of yeast extract resulted in significantly (p ≤ 0.05) higher dry root biomass (9.98 g/L) and relative growth rate versus the control. Cultures treated with abiotic elicitors showed higher percentage of dry weight than the other samples. Low concentrations of all elicitors (50 μM MeJA and SA, and 50 mg/L yeast extract) improved secondary metabolite production except for chitosan, whose performance was worse than that of the control...
November 14, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29138791/a-new-heteropolysaccharide-from-the-seed-husks-of-plantago-asiatica-l-with-its-thermal-and-antioxidant-properties
#11
Yuge Niu, Na Li, Sierkemideke Alaxi, Guoren Huang, Lei Chen, Ziqian Feng
A new heteropolysaccharide (PMH) with a molecular weight of 1.4 × 10(3) kDa was isolated from the seed husks of Plantago asiatica L. The monosaccharide composition of PMH was determined as glucose, xylose, arabinose, rhamnose, galactose and galacturonic acid with a molar ratio of 1.0 : 1.8 : 2.4 : 3.8 : 4.9 : 8.5. The backbone of PMH consisted of 1,4-β-d-GalpA with the side chains mainly composed of 1,3-α-d-Galp and 1,2-α-d-Galp which were attached to the O-3 of GlapA. The thermal analysis using the Flynn-Wall-Ozawa (FWO) method revealed that PMH had an apparent activation energy (Ea) of 173...
November 15, 2017: Food & Function
https://www.readbyqxmd.com/read/29136934/differential-responses-of-the-green-microalga-chlorella-zofingiensis-to-the-starvation-of-various-nutrients-for-oil-and-astaxanthin-production
#12
Xuemei Mao, Tao Wu, Dongzhe Sun, Zhao Zhang, Feng Chen
Chlorella zofingiensis has been proposed as a potential producer of lipids and the high-value carotenoid astaxanthin. In this study, the responses of photoautotrophic C. zofingiensis with respect to growth, lipid profiles and astaxanthin accumulation were investigated upon the starvation of N (NS), P (PS) and S (SS). NS and SS stimulated triacylglycerol (TAG) accumulation, which reached 27% and 21% of dry weight (DW), respectively. Stresses also stimulated astaxanthin accumulation greatly, reaching 3.9 mg/g DW by NS...
October 27, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29136596/occurrence-of-organic-uv-filters-and-metabolites-in-lebranche-mullet-mugil-liza-from-brazil
#13
Daniel Molins-Delgado, Ramón Muñoz, Sylvia Nogueira, Mariana B Alonso, João Paulo Torres, Olaf Malm, Roberta Lourenço Ziolli, Rachel Ann Hauser-Davis, Ethel Eljarrat, Damià Barceló, M Silvia Díaz-Cruz
UV filters (UV-Fs) constitute a heterogeneous group of chemicals used as protection against the effects of UV radiation, widely used in all sort of goods and ubiquitous in the environment. The presence of these chemicals in fish is a matter of concern, because many UV-Fs display hormonal activity. In this study, muscle, gills, and liver from 11 Mugil liza individuals from the highly urbanized Guanabara Bay (Rio de Janeiro, Brazil) were analysed in order to detect eight UV-Fs and metabolites (4-dihydroxybenzophenone [BP1] (2-hydroxy-4-methoxybenzophenone [BP3], 4-methylbenzylidiene camphor [4MBC], ethylhexyl methoxycinnamate [EHMC], ethylhexyl dimethyl p-aminobenzoic acid [ODPABA], octocrylene [OC], 4-hydroxybenzophenone [4HB], and 4,4'-dihydroxybenzophenone [4DHB]) using liquid chromatography-tandem mass spectrometry (HPLC-MS/MS)...
November 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29136366/use-of-an-efficient-measurement-uncertainty-approach-to-compare-room-temperature-and-cryogenic-sample-processing-in-the-analysis-of-chemical-contaminants-in-foods
#14
Lijun Han, Steven J Lehotay, Yelena Sapozhnikova
In this study, analytical results were compared when using different approaches to bulk food sample comminution, consisting of a vertical chopper (Blixer(®)) at room temperature and at dry ice cryogenic conditions, followed by further subsample processing (20 g) using liquid nitrogen cryogenic conditions (cryomill). Analysis of the 43 targeted spiked and incurred contaminants in a food mixture consisting of equal parts orange, apple, kale, salmon, and croaker involved QuEChERS with automated mini-column solid-phase extraction (known as ITSP) cleanup followed by low pressure gas chromatography - tandem mass spectrometry (LPGC-MS/MS)...
November 14, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29133826/can-129-i-track-135-cs-236-u-239-pu-and-240-pu-apart-from-131-i-in-soil-samples-from-fukushima-prefecture-japan
#15
Guosheng Yang, Hirofumi Tazoe, Masatoshi Yamada
In the present study, (129)I activities and (129)I/(127)I atom ratios were measured in 60 soil samples contaminated by the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident. The (127)I concentrations, (129)I activities, and (129)I/(127)I atom ratios in dry-weight were observed to be 0.121-23.6 mg kg(-1), 0.962-275 mBq kg(-1), and (0.215-79.3) × 10(-7), respectively. The maximum values of both (129)I activities and (129)I/(127)I atom ratios in Japanese soil increased about three orders of magnitude due to this accident...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29133076/comparison-of-the-hemodynamic-tolerance-and-the-biological-parameters-of-four-acetate-free-hemodialysis-methods
#16
George Kosmadakis, Enrique Da Costa Correia, Julie Albaret, Frédéric Somda, Didier Aguilera
PURPOSE: Acetate in hemodialysis solutions exerts inflammatory, vasodilatatory and cardio-depressive effects. Citrate has been proposed as an optimal substitute. The aim of the present trial was the comparison of the hemodynamic and biological parameters on a group of patients dialysed consecutively with 4 acetate-free haemodialysis techniques. METHODS: In a prospective crossover manner, we measured the hemodynamic and biological effects of four acetate-free hemodialysis methods: he acetate-free biofiltration with variable potassium (AFBK) and three methods with a citrate buffer: onventional hemodialysis (HD), on-line hemodiafiltration (HDF) and on-line hemofiltration (HF)...
November 10, 2017: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/29132022/determination-of-perfluoroalkyl-acid-isomers-in-biosolids-biosolids-amended-soils-and-plants-using-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry
#17
Hongna Zhang, Bei Wen, Wen Wen, Yibing Ma, Xiaoyu Hu, Yali Wu, Lei Luo, Shuzhen Zhang
Isomer-specific analysis of perfluoroalkyl acids (PFAAs) is important to accurately assess their environmental source, fate, and human risks. In this study, a method was developed for the determination of perfluorooctanoic acid (PFOA), perfluorooctane sulfonate (PFOS), and perfluorohexane sulfonate (PFHxS) isomers in biosolids, biosolids-amended soils and plants using ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). The separation efficiencies of two chromatographic columns and extraction capacities of different methods were tested...
November 6, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29131997/organochlorine-pesticides-across-the-tributaries-of-river-ravi-pakistan-human-health-risk-assessment-through-dermal-exposure-ecological-risks-source-fingerprints-and-spatio-temporal-distribution
#18
Mujtaba Baqar, Yumna Sadef, Sajid Rashid Ahmad, Adeel Mahmood, Jun Li, Gan Zhang
This study monitored the human health risks through dermal exposure, hazardous risks to ecological integrity, contamination levels, spatio-temporal distribution, and congener specific analysis of organochlorine pesticides (OCPs) across River Ravi and its three northern tributaries (Nullah Bein, Nullah Basanter and Nullah Deg). The residual levels of OCPs isomers were screened for water (n=54) and surface sediment (n=54) samples from twenty seven sampling sites in two alternate seasons (pre-monsoon and post-monsoon)...
November 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29131526/amniotic-mesenchymal-stem-cells-mitigate-osteoarthritis-progression-in-a-synovial-macrophage-mediated-in-vitro-explant-co-culture-model
#19
Natasha Topoluk, Kathleen Steckbeck, Sandra Siatkowski, Brian Burnikel, John Tokish, Jeremy Mercuri
Osteoarthritis (OA) is a disease of the synovial joint marked by chronic, low-grade inflammation leading to cartilage destruction. Regenerative medicine strategies for mitigating OA progression and/or promoting cartilage regeneration must be assessed using models that mimic the hallmarks of OA. More specifically, these models should maintain synovial macrophage phenotype in their native micro-environment. Herein, an in vitro co-culture model of patient-matched human OA cartilage and synovium was assessed for viability, macrophage phenotype, and progressive cartilage destruction in the presence of an inflammatory milieu...
November 13, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29131456/performance-and-hemtochemical-parameters-of-buck-kids-fed-concentrate-partially-replaced-with-tropical-piliostigma-thonningii-foliage
#20
Olurotimi A Olafadehan, Ahmed A Njidda, Sunday A Okunade, Sarah O Salihu, David O Balogun, Abdelfattah Z M Salem
Fifteen 5-month-old Red Sokoto buck-kids, (6.6 ± 0.71 kg body weight (BW)) randomly distributed into three groups of five animals per group, were used to study the effects of supplementary concentrate partially replaced with Piliostigma thonningii (PT) foliage on the growth performance, economic benefit and blood profile in a completely randomized design using analysis of variance. The goats in group 1 received 100% supplementary concentrates (PT0), groups 2 and 3 received 25% (PT25) and 50% (PT50), respectively, of concentrate replaced with an equal amount (dry matter basis) of Piliostigma foliage...
November 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
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