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https://www.readbyqxmd.com/read/29149093/evolutionarily-distant-streptophyta-respond-differently-to-genotoxic-stress
#1
Radka Vágnerová, Alena Lukešová, Martin Lukeš, Petra Rožnovská, Marcela Holá, Jana Fulnečková, Jiří Fajkus, Karel J Angelis
Research in algae usually focuses on the description and characterization of morpho-and phenotype as a result of adaptation to a particular habitat and its conditions. To better understand the evolution of lineages we characterized responses of filamentous streptophyte green algae of the genera Klebsormidium and Zygnema, and of a land plant-the moss Physcomitrellapatens-to genotoxic stress that might be relevant to their environment. We studied the induction and repair of DNA double strand breaks (DSBs) elicited by the radiomimetic drug bleomycin, DNA single strand breaks (SSB) as consequence of base modification by the alkylation agent methyl methanesulfonate (MMS) and of ultra violet (UV)-induced photo-dimers, because the mode of action of these three genotoxic agents is well understood...
November 17, 2017: Genes
https://www.readbyqxmd.com/read/29148143/leaf-cell-membrane-stability-based-mechanisms-of-zinc-nutrient-in-mitigation-of-salinity-stress-in-rice
#2
Abdullah Tufail, Hong Li, Asif Naeem, Tingxian Li
Excess salts affect about 955 million ha of total arable lands worldwide and 49% of agricultural lands are Zn deficient. Soil salinity and zinc deficiency can intensify plant abiotic stress. The mechanisms by which Zn nutrients can mitigate salinity effects on plant functions are not well understood. We conducted an experiment to determine the zinc and salinity effects on rice plant retention of Zn, macronutrient potassium (K) and salt ion Na, chlorophyll formation, leaf cell membrane stability and grain yield, and to examine the mechanisms of zinc nutrition in mitigating salinity stress on plant physiological and nutritional aspects...
November 16, 2017: Plant Biology
https://www.readbyqxmd.com/read/29147724/glabrous-cmgl-encodes-a-hd-zip-iv-transcription-factor-playing-roles-in-multicellular-trichome-initiation-in-melon
#3
Huayu Zhu, Xiaofen Sun, Qi Zhang, Pengyao Song, Qianmei Hu, Xiaojing Zhang, Xiang Li, Jianbin Hu, Junsong Pan, Shouru Sun, Yiqun Weng, Luming Yang
Map-based cloning identified CmGL that encodes a HD-ZIP type IV transcription factor that controls multicellular trichome initiation in melon. Trichomes are small hairs covering the aerial parts of plants that originate from the epidermal cells, which can protect plants against the damage by insects and pathogens. The regulatory pathway of unicellular trichomes has been well studied in the model plant Arabidopsis. Little is known about the genetic control and regulation of trichome development in melon (Cucumis melo L...
November 17, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29145557/comparative-analysis-of-the-growth-pattern-of-thyroid-cancer-in-young-patients-screened-by-ultrasonography-in-japan-after-a-nuclear-accident-the-fukushima-health-management-survey
#4
Sanae Midorikawa, Akira Ohtsuru, Michio Murakami, Hideto Takahashi, Satoru Suzuki, Takashi Matsuzuka, Hiroki Shimura, Tetsuya Ohira, Shin-Ichi Suzuki, Seiji Yasumura, Shunichi Yamashita, Hitoshi Ohto, Koichi Tanigawa, Kenji Kamiya
Importance: Thyroid cancer generally grows at a very slow rate in adults, and overdiagnosis is a global issue. However, the detection of early-stage thyroid cancer by screening is not well described in young patients. To prevent overdiagnosis, it is essential to understand the natural course of thyroid cancer growth detection by ultrasonography screening in young patients. Objective: To evaluate the natural progression of thyroid cancer in young patients. Design, Setting, and Participants: An observational study evaluated changes in the diameter of malignant or suspected malignant thyroid tumors on 2 occasions...
November 16, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29145142/is-ozonation-environmentally-benign-for-reverse-osmosis-concentrate-treatment-four-level-analysis-on-toxicity-reduction-based-on-organic-matter-fractionation
#5
Jingxia Weng, Huichao Jia, Bing Wu, Bingcai Pan
Ozonation is a promising option to treat reverse osmosis concentrate (ROC). However, a systematic understanding and assessment of ozonation on toxicity reduction is insufficient. In this study, ROC sampled from a typical industrial park wastewater treatment plant of China was fractionated into hydrophobic acid (HOA), hydrophobic base (HOB), hydrophobic neutral (HON), and hydrophilic fraction (HI). Systematic bioassays covering bacteria, algae, fish, and human cell lines were conducted to reveal the role of ozonation in toxicity variation of the four ROC fractions...
October 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/29144405/genomic-analysis-of-the-asmt-gene-family-in-solanum-lycopersicum
#6
Weicheng Liu, Dake Zhao, Chunfang Zheng, Chen Chen, Xin Peng, Yuan Cheng, Hongjian Wan
Acetylserotonin methyltransferase (ASMT) is the last enzyme of melatonin biosynthesis and may play a rate-limiting role in the melatonin production of plants. In this study, systematic analysis of the ASMT gene family in tomato (Solanum lycopersicum Mill) has been presented by the integration of the structural features, phylogenetic relationships, exon/intron configuration, and expression profile during growth and development, as well as biotic stresses. The results revealed that the tomato genome encoded a minimum of 14 members, containing three probable encoded pseudogenes...
November 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29143556/datalbase-a-database-for-genomic-and-transcriptomic-data-related-to-tal-effectors
#7
Alvaro L Pérez-Quintero, Léo Lamy, Carlos A Zarate, Sébastien Cunnac, Erin L Doyle, Adam J Bogdanove, Boris Szurek, Alexis Derepeer
Transcription activator-like effectors (TALEs) are proteins found in the genus Xanthomonas of phytopathogenic bacteria. These proteins enter the nucleus of cells in the host plant and can induce the expression of susceptibility S genes, triggering disease. TALEs bind the promoter region of S genes following a specific code, which allows the prediction of binding sites based on TALEs' amino acid sequence. New candidate susceptibility genes can then be discovered by finding the intersection between genes induced in the presence of TALEs and genes containing predicted effector binding elements (EBEs)...
November 16, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29142438/molecular-simulation-based-combinatorial-modeling-and-antioxidant-activities-of-zingiberaceae-family-rhizomes
#8
Talambedu Usha, Sushen Pradhan, Arvind Kumar Goyal, Shanmugarajan Dhivya, H P Prashanth Kumar, Manoj Kumar Singh, Neelu Joshi, Bharat Chandra Basistha, K R Siddalinga Murthy, Saravanakumar Selvaraj, Sushil Kumar Middha
Objective: The main aim of this scientific report was to investigate a series of phytochemicals in silico and the pharmacology of four plants found at higher altitude in the ginger family, Zingiberaceae (incl. Costaceae) from North-East India, particularly Sikkim. First, the goal was to determine the biological activities of the four herbs (used under Zingiberaceae family) using antioxidant assays to identify the best species. Second, previously reported compounds in litero were subsequently screened for their anticancerous activities using in silico methods...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29142283/a-mobile-device-based-imaging-spectrometer-for-environmental-monitoring-by-attaching-a-lightweight-small-module-to-a-commercial-digital-camera
#9
Fuhong Cai, Wen Lu, Wuxiong Shi, Sailing He
Spatially-explicit data are essential for remote sensing of ecological phenomena. Lately, recent innovations in mobile device platforms have led to an upsurge in on-site rapid detection. For instance, CMOS chips in smart phones and digital cameras serve as excellent sensors for scientific research. In this paper, a mobile device-based imaging spectrometer module (weighing about 99 g) is developed and equipped on a Single Lens Reflex camera. Utilizing this lightweight module, as well as commonly used photographic equipment, we demonstrate its utility through a series of on-site multispectral imaging, including ocean (or lake) water-color sensing and plant reflectance measurement...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29141604/genome-wide-identification-of-mirnas-and-lncrnas-in-cajanus-cajan
#10
Chandran Nithin, Amal Thomas, Jolly Basak, Ranjit Prasad Bahadur
BACKGROUND: Non-coding RNAs (ncRNAs) are important players in the post transcriptional regulation of gene expression (PTGR). On one hand, microRNAs (miRNAs) are an abundant class of small ncRNAs (~22nt long) that negatively regulate gene expression at the levels of messenger RNAs stability and translation inhibition, on the other hand, long ncRNAs (lncRNAs) are a large and diverse class of transcribed non-protein coding RNA molecules (> 200nt) that play both up-regulatory as well as down-regulatory roles at the transcriptional level...
November 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29141562/a-review-of-electroporation-based-antitumor-skin-therapies-and-investigation-of-betulinic-acid-loaded-ointment
#11
Monika Bakonyi, Szilvia Berko, Gabor Eros, Gabor Varju, Cristina Dehelean, Maria Budai Szucs, Erzsebet Csanyi
BACKGROUND: Electrochemotherapy is a novel treatment for cutaneous and subcutaneous tumors utilizing the combination of electroporation and chemotherapeutic agents. Since tumors have an increasing incidence nowadays as a result of environmental and genetic factors, electrochemotherapy could be a promising treatment for cancer patients. OBJECTIVE: The aim of this article is to summarize the novel knowledge about the use of electroporation for antitumor treatments and to present a new application of electrochemotherapy with a well-known plant derived antitumor drug betulinic acid...
November 13, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29139349/leucobacter-triazinivorans-sp-nov-a-s-triazine-herbicide-prometryn-degrading-bacterium-isolated-from-sludge
#12
Le-Ni Sun, Dan-Dan Pan, Xiang-Wei Wu, En-Dong Yang, Ri-Mao Hua, Qing X Li
A Gram-stain-positive, rod-shaped, non-motile bacterial strain, designated JW-1(T), was isolated from activated sludge collected from the outlet of an aeration tank in a prometryn-manufacturing plant, located in Binzhou City, Shandong province, PR China. Phylogenetic analysis, based on 16S rRNA gene sequences, indicated that strain JW-1(T) belongs to the genus Leucobacter and its closest neighbours are 'Leucobacter kyeonggiensis' F3-P9 (98.95 % similarity), Leucobacter celer subsp. astrifaciens CBX151(T) (98...
November 15, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29139270/-chemical-constituents-from-root-of-angelica-decursiva
#13
Zhi-Chao Liao, Xin Jiang, Wen-Jing Tian, Ting Lin, Hai-Feng Chen
The compounds were isolated and purified by HP20 macroporous adsorption resin, ODS, silica gel, and Sephadex LH-20 column chromatography, as well as semi-preparative HPLC chromatography from the 80% ethanol extract of the root of Angelica decursiva, and their structures were identified based on their physiochemical properties and spectroscopic data. Twelve compounds were structures were identified as (9R,10R)-9-acetoxy-8,8-dimethyl-9,10-dihydro-2H,8H-benzo[1,2-b:3,4-b']dipyran-2-one-10-yl ester (1), bakuchicin (2), (3', S,4'S)-disenecioyloxy-3',4'-dihydroseselin (3), (3'R,4'R)-3'-angeloyloxy-4'-senecioyloxy-3',4'-dihydroseselincalipteryxin (4), (+)-8,9-dihydro-8-(2-hydroxypropan-2-yl)-2-oxo-2H-furo[2,3h]chromen-9-yl-3-methylbut-2-enoate (5), libanoridin (6), selinidin (7), suberosin (8), crocatone (9), peujaponisinol B (10), peujaponisinol A (11), and ostenol (12), respectively...
August 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29138906/influence-of-polyaluminum-chloride-on-microbial-characteristics-in-anaerobic-membrane-bioreactors-for-sludge-digestion
#14
Wanlin Zheng, Zhiyong Yu, Yu Xia, Xianghua Wen
In this study, two parallel lab-scale anaerobic membrane bioreactors (AnMBRs), one of which was dosed with polyaluminum chloride (PAC) for membrane fouling control, were operated for treating excess activated sludge collected from a wastewater treatment plant (WWTP). The AnMBRs were inoculated with anaerobic digested sludge collected from an anaerobic digester of another WWTP. The microbial community of digested sludge and cake layer in AnMBRs, as well as that of excess sludge, was analyzed through polymerase chain reaction coupled with denaturing gradient gel electrophoresis (PCR-DGGE) and Illumina MiSeq...
November 14, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29138867/effect-of-xanthohumol-on-th1-th2-balance-in-a-breast-cancer-mouse-model
#15
Wenchao Zhang, Yanlong Pan, Panhong Gou, Cheng Zhou, Lianqing Ma, Qiming Liu, Yuping Du, Jinbo Yang, Qin Wang
Xanthohumol (XN), a prenylflavonoid found in the hop plant, Humulus lupulus, exhibits a variety of biological activities. Numerous studies have reported that XN inhibits the growth of many types of cancer cells, but the effects of XN on tumor immunity have not yet been studied. We explored the effect of XN on Th1/Th2 balance and the underlying mechanism based on a BALB/c-4T1 breast cancer mouse model. The results showed that XN significantly slowed down tumor growth and inhibited expression of antitumor proliferation protein Ki-67 as well as breast cancer-specific marker cancer antigen 15-3 (CA15-3)...
November 13, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29134767/availability-and-approval-of-cannabis-based-medicines-for-chronic-pain-management-and-palliative-supportive-care-in-europe-a-survey-of-the-status-in-the-chapters-of-the-european-pain-federation
#16
N Krcevski-Skvarc, C Wells, W Häuser
BACKGROUND: There is considerable public and political interest in the use of cannabis products for medical purposes. METHODS: The task force of the European Pain Federation (EFIC) conducted a survey with its national chapters representatives on the status of approval of all types of cannabis-based medicines, the covering of costs and the availability of a position paper of a national medical association on the use of medical cannabis for chronic pain and for symptom control in palliative/supportive care...
November 13, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29134709/light-sensing-by-opsins-and-fungal-ecology-nop-1-modulates-entry-into-sexual-reproduction-in-response-to-environmental-cues
#17
Zheng Wang, Junrui Wang, Ning Li, Jigang Li, Frances Trail, Jay C Dunlap, Jeffrey P Townsend
Understanding the genetic basis of the switch from asexual to sexual lifestyles in response to sometimes rapid environmental changes is one of the major challenges in fungal ecology. Light appears to play a critical role in the switch-but fungal genomes harbor diverse light sensors. Fungal opsins are homologous to bacterial green-light sensory rhodopsins, and their organismal functions in fungi have not been well understood. Three of these opsin-like proteins were widely distributed across fungal genomes, but homologs of the Fusarium opsin-like protein CarO were present only in plant-associated fungi...
November 13, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/29132820/optimization-and-application-of-fabric-phase-sorptive-extraction-coupled-to-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry-for-the-determination-of-cytostatic-drug-residues-in-environmental-waters
#18
Sergio Santana-Viera, Rayco Guedes-Alonso, Zoraida Sosa-Ferrera, José Juan Santana-Rodríguez, Abuzar Kabir, Kenneth G Furton
Every year, hundreds of tons of organic pollutants reach the environment through effluents released from wastewater treatment plants worldwide, and many of these compounds have harmful effects on the aquatic ecosystem. A new class of emerging pollutants of high concern is cytostatic drugs, which are designed to treat different types of cancers by attacking cells. Environmental concentrations of cytostatic drugs are known to be in the range of ngL(-1), and for this reason, it is imperative to develop analytical methods of extraction and preconcentration to allow for subsequent instrumental analysis of these drugs...
November 4, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29132718/bioturbation-effects-on-bioaccumulation-of-cadmium-in-the-wetland-plant-typha-latifolia-a-nature-based-experiment
#19
Trung Kien Hoang, Anne Probst, Didier Orange, Franck Gilbert, Arnaud Elger, Jean Kallerhoff, François Laurent, Sabina Bassil, Thi Thuy Duong, Magali Gerino
The development of efficient bioremediation techniques to reduce aquatic pollutant load in natural sediment is one of the current challenges in ecological engineering. A nature-based solution for metal bioremediation is proposed through a combination of bioturbation and phytoremediation processes in experimental indoor microcosms. The invertebrates Tubifex tubifex (Oligochaeta Tubificidae) was used as an active ecological engineer for bioturbation enhancement. The riparian plant species Typha latifolia was selected for its efficiency in phyto-accumulating pollutants from sediment...
November 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29132437/hap2-a-novel-gene-in-babesia-bigemina-is-expressed-in-tick-stages-and-specific-antibodies-block-zygote-formation
#20
Minerva Camacho-Nuez, Diego Josimar Hernández-Silva, Elizabeth Jacqueline Castañeda-Ortiz, María Elena Paredes-Martínez, Marisol Karina Rocha-Martínez, María Elizbeth Alvarez-Sánchez, Ricardo Francisco Mercado-Curiel, Gabriela Aguilar-Tipacamu, Juan Mosqueda
BACKGROUND: Bovine babesiosis is a tick-borne disease caused by the protozoan parasites of the genus Babesia. In their host vector, Babesia spp. undergo sexual reproduction. Therefore, the development of sexual stages and the subsequent formation of the zygote are essential for the parasite to invade the intestinal cells of the vector tick and continue its life-cycle. HAP2/GCS1 is a protein identified in plants, protozoan parasites and other organisms that has an important role during membrane fusion in fertilization processes...
November 13, 2017: Parasites & Vectors
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