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https://www.readbyqxmd.com/read/28340155/identification-of-jasmonic-acid-and-jasmonoyl-isoleucine-and-characterization-of-aos-aoc-opr-and-jar1-in-the-model-lycophyte-selaginella-moellendorffii
#1
Putri Pratiwi, Genta Tanaka, Tomohiro Takahashi, Xiaonan Xie, Koichi Yoneyama, Hideyuki Matsuura, Kosaku Takahashi
Jasmonic acid (JA) is involved in a variety of physiological responses in seed plants. However, the detection and role of JA in lycophytes, a group of seedless vascular plants, have remained elusive until recently. This study provides the first evidence of 12-oxo-phytodienoic acid (OPDA), JA and jasmonoyl-isoleucine (JA-Ile) in the model lycophyte Selaginella moellendorffii. Mechanical wounding stimulated the accumulation of OPDA, JA and JA-Ile. These data were corroborated by the detection of enzymatically active allene oxide synthase (AOS), allene oxide cyclase (AOC), 12-oxo-phytodienoic acid reductase 3 (OPR3) and JA-Ile synthase (JAR1) in S...
March 13, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28340062/exogenously-applied-24-epibrassinolide-ebl-ameliorates-detrimental-effects-of-salinity-by-reducing-k-efflux-via-depolarization-activated-k-channels
#2
Nazila Azhar, Nana Su, Lana Shabala, Sergey Shabala
This study has investigated mechanisms conferring beneficial effects of exogenous application of 24-epibrassinolides (EBL) on plant growth and performance under saline conditions. Barley seedlings treated with 0.25 mg l-1 EBL showed significant improvements in root hair length, shoot length, shoot fresh weight and relative water content when grown in the presence of 150 mM NaCl in the growth medium. In addition, EBL treatment significantly decreased the Na+ content in both shoots (by approximately 50%) and roots...
March 2, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28340032/osptr7-osnpf8-1-a-putative-peptide-transporter-in-rice-is-involved-in-dimethylarsenate-accumulation-in-rice-grain
#3
Zhong Tang, Yi Chen, Fei Chen, Yuchen Ji, Fang-Jie Zhao
Rice (Oryza sativa) is a major dietary source of arsenic (As) for the population consuming rice as their staple food. Rice grain contains both inorganic As and methylated As species, especially dimethyarsinate (DMA). DMA is highly mobile in long-distance translocation in plants, but the underlying mechanism remains unknown. In the present study, we showed that OsPTR7 (OsNPF8.1), a putative peptide transporter in rice, was permeable to DMA in Xenopus laevis oocytes. Transient expression of the OsPTR7-green fluorescent protein (GFP) in tobacco protoplasts showed that OsPTR7 was localized in the cell plasma membrane...
March 2, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28339448/efficacious-dorsal-root-ganglion-stimulation-for-painful-small-fiber-neuropathy-a-case-report
#4
Paolo Maino, Eva Koetsier, Alain Kaelin-Lang, Claudio Gobbi, Roberto Perez
Small fiber neuropathy is a disorder of the peripheral nerves with typical symptoms of burning, sharp, and shooting pain and sensory disturbances in the feet. Pain treatment depends principally on the underlying etiology with concurrent administration of antidepressants, anticonvulsants, opioids, and topical treatments like capsaicin and local anesthetics. However, treatments for pain relief in these patients frequently fail. We describe the first case of intractable painful small fiber neuropathy of the foot successfully treated with spinal cord stimulation of the left L5 dorsal root ganglion...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339433/management-of-neuropathic-chronic-pain-with-methadone-combined-with-ketamine-a-randomized-double-blind-active-controlled-clinical-trial
#5
Flavia Karine Rigo, Gabriela Trevisan, Maria C Godoy, Mateus Fortes Rossato, Gerusa D Dalmolin, Mariane A Silva, Mirian S Menezes, Wolnei Caumo, Juliano Ferreira
BACKGROUND: Methadone and ketamine are used in neuropathic pain management. However, the benefits of both drugs association are uncertain in the treatment of neuropathic pain. OBJECTIVE: Our primary objective was test the hypothesis that oral methadone combined with oral ketamine is more effective than oral methadone or ketamine alone in reducing neuropathic pain. STUDY DESIGN: We conducted a randomized, double blind, active-controlled parallel-group clinical trial...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28334647/arsenic-load-in-rice-ecosystem-and-its-mitigation-through-deficit-irrigation
#6
Arkabanee Mukherjee, M Kundu, B Basu, B Sinha, M Chatterjee, M Das Bairagya, U K Singh, S Sarkar
Rice the staple food is a notable intake source of arsenic to the rural population of eastern India through food-chain. A field survey was carried out to study the variation of arsenic load in different parts of rice genotype Shatabdi (most popular genotype of the region) exposed to varying level of arsenic present in the irrigation water and soil. As irrigation is the primary source of arsenic contamination, a study was conducted to assess arsenic load in rice ecosystem under deficit irrigation practices like intermittent ponding (IP), saturation (SAT) and aerobic (AER) imposed during stress allowable stage (16-40 days after transplanting) of the crop (genotype Shatabdi)...
March 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28334619/investigation-on-metal-tolerance-and-phytoremoval-activity-in-the-poplar-hybrid-clone-monviso-under-cu-spiked-water-potential-use-for-wastewater-treatment
#7
Fabrizio Pietrini, Daniela Di Baccio, Valentina Iori, Sofia Veliksar, Natalia Lemanova, Liudvika Juškaitė, Audrius Maruška, Massimo Zacchini
A serious concern for the environmental and human health is represented by the increasing copper (Cu) occurrence in agricultural soils and waters, because of the possible food contamination and bioaugmentation along the trophic chain. The request for the decontamination of different matrices with an environmentally sustainable technology as the phytoremediation should be addressed by selecting plant materials with improved pollutant tolerance and removal capability. With this purpose, plants of the hybrid poplar clone "Monviso" (Populus×generosa A...
March 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28334100/an-organismal-concept-for-sengelia-radicans-gen-et-sp-nov-morphology-and-natural-history-of-an-early-devonian-lycophyte
#8
Kelly K S Matsunaga, Alexandru M F Tomescu
Background and Aims: Fossil plants are found as fragmentary remains and understanding them as natural species requires assembly of whole-organism concepts that integrate different plant parts. Such concepts are essential for incorporating fossils in hypotheses of plant evolution and phylogeny. Plants of the Early Devonian are crucial to reconstructing the initial radiation of tracheophytes, yet few are understood as whole organisms. Methods: This study assembles a whole-plant concept for the Early Devonian lycophyte Sengelia radicans gen...
February 20, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28334013/correction-centering-the-organizing-center-in-the-arabidopsis-thaliana-shoot-apical-meristem-by-a-combination-of-cytokinin-signaling-and-self-organization
#9
Milad Adibi, Saiko Yoshida, Dolf Weijers, Christian Fleck
[This corrects the article DOI: 10.1371/journal.pone.0147830.].
2017: PloS One
https://www.readbyqxmd.com/read/28332861/treatment-of-nightmares-in-psychiatric-inpatients-with-imagery-rehearsal-therapy-an-open-trial-and-case-series
#10
Thomas E Ellis, Katrina A Rufino, Michael R Nadorff
OBJECTIVES: This study sought to assess the utility of Imagery Rehearsal Therapy (IRT) for nightmares in an inpatient psychiatric setting. Although IRT enjoys a substantial evidence base for efficacy in various populations, data with psychiatric inpatients are lacking. PARTICIPANTS: Participants were 20 adult psychiatric inpatients (11 male, 9 female; mean age=43.4), in an extended stay psychiatric inpatient facility. All participants were diagnosed with multiple, treatment resistant, comorbid conditions, including mood disorders, anxiety disorders, personality disorders, and substance-related disorders...
March 23, 2017: Behavioral Sleep Medicine
https://www.readbyqxmd.com/read/28332174/effects-of-carbon-nanotube-and-biochar-on-bioavailability-of-pb-cu-and-sb-in-multi-metal-contaminated-soil
#11
Meththika Vithanage, Indika Herath, Yaser A Almaroai, Anushka Upamali Rajapaksha, Longbin Huang, Jwa-Kyung Sung, Sang Soo Lee, Yong Sik Ok
This study examined the effects of carbon nanotube and biochar on the bioavailability of Pb, Cu and Sb in the shooting range soils for developing low-cost remediation technology. Commercially available multi-walled carbon nanotube (MWCNT) and biochar pyrolyzed from soybean stover at 300 °C (BC) at 0.5, 1 and 2.5% (w w(-1)) were used to remediate the contaminated soil in an incubation experiment. Both DTPA (bioavailable) and TCLP (leaching) extraction procedures were used to compare the metal/loid availability and leaching by the amendments in soil...
March 22, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28330990/on-the-growth-and-form-of-shoots
#12
Raghunath Chelakkot, L Mahadevan
Growing plant stems and shoots exhibit a variety of shapes that embody growth in response to various stimuli. Building on experimental observations, we provide a quantitative biophysical theory for these shapes by accounting for the inherent observed passive and active effects: (i) the active controllable growth response of the shoot in response to its orientation relative to gravity, (ii) proprioception, the shoot's growth response to its own observable current shape, and (iii) the passive elastic deflection of the shoot due to its own weight, which determines the current shape of the shoot...
March 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28330326/impact-assessment-of-silver-nanoparticles-on-plant-growth-and-soil-bacterial-diversity
#13
Pallavi, C M Mehta, Rashmi Srivastava, Sandeep Arora, A K Sharma
The present study was carried out to investigate the impact of silver nanoparticles (AgNPs) on the growth of three different crop species, wheat (Triticum aestivum, var. UP2338), cowpea (Vigna sinensis, var. Pusa Komal), and Brassica (Brassica juncea, var. Pusa Jai Kisan), along with their impact on the rhizospheric bacterial diversity. Three different concentrations (0, 50 and 75 ppm) of AgNPs were applied through foliar spray. After harvesting, shoot and root parameters were compared, and it was observed that wheat was relatively unaffected by all AgNP treatments...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330316/phytotoxicity-and-oxidative-stress-perspective-of-two-selected-nanoparticles-in-brassica-juncea
#14
Sunita Rao, Gyan Singh Shekhawat
This study elaborates the consequences of oxidative stress caused by copper oxide (CuO) and titanium dioxide (TiO2) nanoparticles (NPs) in Brassica juncea. Effect of these two NPs on plant physiology, reactive oxygen scavenging enzyme system (ascorbate peroxidase, catalase, superoxide dismutase), proline content and lipid peroxidation has been estimated in leaves as well as root tissues. Bioaccumulation of NPs has also been evaluated in the current study and the interrelated cascade of the enzymatic system with H2O2 production was identified...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330265/isolation-and-characterization-of-plant-synergistic-bacteria-capable-of-degrading-xenobiotics-from-oil-spillage-sites
#15
Indranil De, Sarika Gupta
Oil spillage sites primarily contain various types of hydrocarbons, such as linear chain, polycyclic, and aromatic compounds, posing several detrimental effects on plants. Results from our previous study showed an alteration of various metabolomic parameters, indirectly resulting in an observable decline of growth in the mung seedlings upon incubation with phenol, toluene, xylene, and hexane. This study evaluates the role of these compounds upon plant growth and focusses to mitigate the effect of the same, using some isolated plant synergistic bacteria...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330253/parameters-influencing-agrobacterium-mediated-transformation-system-in-safflower-genotypes-aks-207-and-pkv-pink
#16
Dipti Raghunath Dhumale, Prashant Raghunath Shingote, Mahendra Shankarrao Dudhare, Pravin Vishwanath Jadhav, Prashant Bhaskar Kale
Shoot regeneration in safflower (Carthamus tinctorius 'AKS 207' and 'PKV Pink') genetically transformed using Agrobacterium was used for assessing various constraints to the efficiency of transformation including infection period, virulence induction medium, co-cultivation period, bacterial titre, selection regime, and the natural phenolic compound acetosyringone. Transformation frequency was promising with 8-10-day-old cotyledonary leaf explants. Therefore, explants of that age cultured on Agrobacterium minimal medium (AB) containing 100 µM acetosyringone were infected with Agrobacterium (cell titre 0...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330243/micropropagation-and-validation-of-genetic-and-biochemical-fidelity-among-regenerants-of-nothapodytes-nimmoniana-graham-mabb-employing-issr-markers-and-hplc
#17
Lokesh Prakash, Sushil Kumar Middha, Sudipta Kumar Mohanty, Mallappa Kumara Swamy
An in vitro protocol has been established for clonal propagation of Nothapodytes nimmoniana which is an important source of Camptothecin (CPT). Elite source was identified based on the chemical potency to accumulate the optimum level of CPT. Different types and concentrations of plant growth regulators were used to study their effect on inducing multiple shoots from the explants regenerated from embryos of N. nimmoniana. Of these, a combination of N6-benzyladenine (0.2 mg L(-1)) and Indole-3-butyric acid (IBA) (0...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330224/transcriptome-wide-mining-suggests-conglomerate-of-genes-associated-with-tuberous-root-growth-and-development-in-aconitum-heterophyllum-wall
#18
Nikhil Malhotra, Hemant Sood, Rajinder Singh Chauhan
Tuberous roots of Aconitum heterophyllum constitute storage organ for secondary metabolites, however, molecular components contributing to their formation are not known. The transcriptomes of A. heterophyllum were analyzed to identify possible genes associated with tuberous root development by taking clues from genes implicated in other plant species. Out of 18 genes, eight genes encoding GDP-mannose pyrophosphorylase (GMPase), SHAGGY, Expansin, RING-box protein 1 (RBX1), SRF receptor kinase (SRF), β-amylase, ADP-glucose pyrophosphorylase (AGPase) and Auxin responsive factor 2 (ARF2) showed higher transcript abundance in roots (13-171 folds) compared to shoots...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330220/involvement-of-exogenous-polyamines-enhances-regeneration-and-agrobacterium-mediated-genetic-transformation-in-half-seeds-of-soybean
#19
Muthukrishnan Arun, Arunachalam Chinnathambi, Kondeti Subramanyam, Sivabalan Karthik, Ganeshan Sivanandhan, Jeevaraj Theboral, Sulaiman Ali Alharbi, Chang Kil Kim, Andy Ganapathi
The present work demonstrates the participation of polyamines (PAs) to improve direct regeneration and Agrobacterium-mediated transformation in soybean half-seeds. The inclusion of PAs to culture medium along with optimal plant growth regulators (PGRs) enhanced shoot induction [98.3 %; 4.44 µM N(6)-benzyladenine (BA) and 103.27 µM spermidine] and elongation [90.0 %; 1.45 µM gibberellic acid (GA3) and 49.42 µM spermine]. The polyamine putrescine (62.08 µM) alone greatly enriched root induction (96...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330189/defense-response-enhancement-in-strawberry-via-elicitors
#20
Gihan M H Hussein, Tahany M A Abdel-Rahman, A H Alwan
In this study, cell-suspension culture of strawberry (Fragaria × ananassa), cultivars Camarosa, and Sweet Charlie has been established. Embryogenic callus was induced by incubating the in vitro juvenile leaf explants on medium, containing 2-mg/l picloram at dark. Suspension culture was initiated from 4-week-old embryogenic calli in the liquid MS medium with 1-mg/l 2,4-D and 2-mg/l picloram. Suspension culture was maintained by sub-culturing each 3 weeks into a fresh medium. At week 9 after third sub-cultures, torpedo and cotyledonary embryo stages were observed...
December 2016: 3 Biotech
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