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https://www.readbyqxmd.com/read/28935724/genome-sequences-for-multiple-clavibacter-strains-from-different-subspecies
#1
Xiang Sean Li, Xiaoli Kat Yuan
The Gram-positive genus Clavibacter harbors economically important plant pathogens infecting a variety of agricultural crops, such as potato, tomato, corn, barley, etc. Here, we report five new genome sequences, those of strains CFIA-Cs3N, CFIA-CsR14, LMG 3663(T), LMG 7333(T), and ATCC 33566(T), from different subspecies of Clavibacter michiganensis All these genomic data will be used for reclassification and niche-adapted feature comparisons.
September 21, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28935716/proteomic-analysis-of-phytophthora-infestans-reveals-the-importance-of-cell-wall-proteins-in-pathogenicity
#2
Svante Resjö, Maja Brus, Ashfaq Ali, Harold J G Meijer, Marianne Sandin, Francine Govers, Fredrik Levander, Laura Grenville-Briggs, Erik Andreasson
The oomycete Phytophthora infestans is the most harmful pathogen of potato. It causes the disease late blight, which generates increased yearly costs of up to one billion euro in the EU alone and is difficult to control. We have performed a large-scale quantitative proteomics study of six P. infestans life stages with the aim to identify proteins that change in abundance during development, with a focus on pre-infectious life stages. Over 10 000 peptides from 2061 proteins were analysed. We identified a number of abundance profiles of proteins that were up- or downregulated in different combinations of life stages...
September 21, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28930528/biotechnological-improvement-of-nutritional-and-therapeutic-value-of-cultivated-potato
#3
Deepak Singh Bagri, Devanshi Chandel Upadhyay, Subodh Kumar Jain, Chandrama Prakash Upadhyay
Genetic engineering is recognized as a powerful tool for altering the genetic characteristic of crop plants. Genetic engineering has tremendous potential in developing improved potato varieties with desired agronomic traits and has been utilized for improvement of several crop plants including potato to enhance essential amino acid, protein and lipids/carbohydrates contents as well to improve stress tolerance. The pathway engineering of amino acid revealed dramatic changes in essential amino acid content and protein quality...
January 1, 2018: Frontiers in Bioscience (Scholar Edition)
https://www.readbyqxmd.com/read/28930274/the-efficiency-of-noni-morinda-citrifolia-l-essential-oil-on-the-control-of-leaf-spot-caused-by-exserohilum-turcicum-in-maize-culture
#4
Janaina Costa E Silva, Dalmarcia de Sousa Carlos Mourão, Fabia Silva de Oliveira Lima, Renato de Almeida Sarmento, Mateus Sunti Dalcin, Raimundo Wagner de Souza Aguiar, Gil Rodrigues Dos Santos
The objective of this work was to evaluate the efficiency of noni essential oil on the control of Exserohilum turcicum, a causative agent of Exserohilum spot in maize culture. In the sanitary test 400 seeds were incubated using the blotter test method. For the transmissibility test, the fragments of damaged leaves of seedlings were removed and put into a potato, dextrose and agar (PDA) culture environment. To verify the pathogenicity, Koch´s postulates were performed. In the phytotoxicity test different concentrations of noni oil were applied in maize seedlings...
August 14, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28929574/metabolite-and-transcript-markers-for-the-prediction-of-potato-drought-tolerance
#5
Heike Sprenger, Alexander Erban, Sylvia Seddig, Katharina Rudack, Anja Thalhammer, Mai Q Le, Dirk Walther, Ellen Zuther, Karin I Köhl, Joachim Kopka, Dirk K Hincha
Potato (Solanum tuberosum L.) is one of the most important food crops worldwide. Current potato varieties are highly susceptible to drought stress. In view of global climate change, selection of cultivars with improved drought tolerance and high yield potential is of paramount importance. Drought tolerance breeding of potato is currently based on direct selection according to yield and phenotypic traits and requires multiple trials under drought conditions. Marker-assisted selection (MAS) is cheaper, faster and reduces classification errors caused by non-controlled environmental effects...
September 20, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28927626/digestibility-of-starches-isolated-from-stem-and-root-tubers-of-arracacha-cassava-cush-cush-yam-potato-and-taro
#6
Mighay Lovera, Elevina Pérez, Alexander Laurentin
Digestibility of arracacha, cassava, cush-cush yam, potato and taro starches was evaluated. In vitro (potentially-available starch and total resistant starch) and in vivo digestibility in the rice weevil (Sitophilus oryzae) bioassay (survival, weight variation, α-amylase like activity [ALA], and uric acid excretion [UAE] as biomarkers) were estimated. In in vitro assays, all starches presented high resistant starch content (14-56%, dry basis), except for cassava starch. In in vivo assays, cush-cush yam and potato starches promoted higher ALA (>3 times) and UAE (>4 times) compare to a reference diet (cornstarch), in agreement to their low digestibility...
November 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28927617/comparative-study-of-the-effect-of-starches-from-five-different-sources-on-the-rheological-properties-of-gluten-free-model-doughs
#7
Duqin Zhang, Taihua Mu, Hongnan Sun
We investigated the effect of wheat (WS), corn (CS), tapioca (TS), sweet potato (SS) and potato (PS) starches on the rheological properties of starch-hydroxypropylmethylcellulose (HPMC) model doughs. Significant differences were found among model doughs made with different starches in terms of water absorption, development time, and strength. The PS-HPMC dough presented higher maximum creep compliance, followed successively by SS-, TS-, CS-, and WS-HPMC doughs, and the same order was found for the degree of dependence of G' on frequency sweep, suggesting that the resistance to deformation depends on network structure stability...
November 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28921772/interplay-of-classic-exp-and-specific-vfm-quorum-sensing-systems-on-the-phenotypic-features-of-dickeya-solani-strains-exhibiting-different-virulence-levels
#8
Marta Potrykus, Nicole Hugouvieux-Cotte-Pattat, Ewa Lojkowska
Bacteria from the genus Dickeya cause severe symptoms on numerous economically important plants. D. solani is the Dickeya species most frequently found on infected potato plants in Europe. D. solani strains from different countries show high genetic homogeneity but significant differences in their virulence level. Dickeya species possess two quorum sensing (QS) mechanisms: the Exp system based on classic N-acyl-homoserine lactone (AHL) signals and a specific system depending on the production and perception of a molecule of unknown structure, Virulence Factor Modulating (VFM)...
September 18, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28921459/chimeric-virus-as-a-source-of-the-potato-leafroll-virus-antigen
#9
Eugene V Skurat, Konstantin O Butenko, Olga A Kondakova, Nikolai A Nikitin, Olga V Karpova, Yuri F Drygin, Joseph G Atabekov
Large quantities of potato leafroll virus (PLRV) antigen are difficult to obtain because this virus accumulates in plants at a low titer. To overcome this problem, we constructed a binary vector containing chimeric cDNA, in which the coat protein (CP) gene of the crucifer infecting tobacco mosaic virus (crTMV) was substituted for the coat protein gene of PLRV. The PLRV movement protein (MP) gene, which overlaps completely with the CP gene, was doubly mutated to eliminate priming of the PLRV MP translation from ATG codons with no changes to the amino acid sequence of the CP...
September 18, 2017: Molecular Biotechnology
https://www.readbyqxmd.com/read/28921162/a-bionanohybrid-znal-nads-ecological-pesticide-as-a-treatment-for-soft-rot-disease-in-potato-solanum-tuberosum-l
#10
Erika Elizabeth Morales-Irigoyen, Yolanda de Las Mercedes Gómez-Y-Gómez, Jorge Luis Flores-Moreno, Marina Olivia Franco-Hernández
Pectobacterium carotovorum (Pc) is a phytopathogenic strain that causes soft rot disease in potato (Solanum tuberosum L.), resulting in postharvest losses. Chemical control is effective for managing this disease, but overdoses cause adverse effects. Because farmers insist on using chemical agents for crop protection, it is necessary to develop more effective pesticides in which the active compound released can be regulated. In this context, we proposed the synthesis of ZnAl-NADS, in which nalidixic acid sodium salt (NADS) is linked to a ZnAl-NO3 layered double hydroxide (LDH) host as a nanocarrier...
September 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28918160/shopping-for-food-with-children-a-strategy-for-directing-their-choices-toward-novel-foods-containing-vegetables
#11
Xavier Allirot, Edurne Maiz, Elena Urdaneta
Involving children in the different steps of meal preparation has been suggested as a strategy for enhancing dietary habits in childhood. It has previously been shown that involving children in cooking can increase their willingness to taste novel foods and direct their food choices towards foods containing vegetables. The objective of the present study was to assess the effect of involving children in food purchasing on food choices, intake, liking and appetite. A between-subject experiment was conducted with 86 children (from 8 to 10 years old)...
September 14, 2017: Appetite
https://www.readbyqxmd.com/read/28917783/intellectual-modifying-a-bare-glassy-carbon-electrode-to-fabricate-a-novel-and-ultrasensitive-electrochemical-biosensor-application-to-determination-of-acrylamide-in-food-samples
#12
Kambiz Varmira, Omid Abdi, Mohammad-Bagher Gholivand, Hector C Goicoechea, Ali R Jalalvand
Acrylamide (AA) is a neurotoxin and carcinogen which is mainly formed in foods containing large quantities of starch processed at high temperatures and its determination is very important to control the quality of foods. In this work, a novel electrochemical biosensor based on hemoglobin-dimethyldioctadecylammonium bromide (HG-DDAB)/platinum-gold-palladium three metallic alloy nanoparticles (PtAuPd NPs)/chitosan-1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (Ch-IL)/multiwalled carbon nanotubes-IL (MWCNTs-IL)/glassy carbon electrode (GCE) is proposed for ultrasensitive determination of AA in food samples...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917671/scanning-electron-microscopy-and-histopathological-observations-of-beauveria-bassiana-infection-of-colorado-potato-beetle-larvae
#13
Yulin Duan, Hui Wu, Zhiyan Ma, Liu Yang, Deying Ma
Beauveria bassiana is a potential candidate for use as an environmentally friendly bio-pesticide. We studied the infection process and histopathology of B. bassiana strain NDBJJ-BFG infection of the Colorado potato beetle (Leptinotarsa decemlineata) using scanning electron microscopy and hematoxylin-eosin staining of tissue sections. The results show that the fungus penetrated the insect epidermis through germ tubes and appressoria after spraying the larvae with conidial suspensions. The conidia began to germinate after 24 h and invade the epidermis...
September 13, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28917167/virtual-water-trade-patterns-in-relation-to-environmental-and-socioeconomic-factors-a-case-study-for-tunisia
#14
Hatem Chouchane, Maarten S Krol, Arjen Y Hoekstra
Growing water demands put increasing pressure on local water resources, especially in water-short countries. Virtual water trade can play a key role in filling the gap between local demand and supply of water-intensive commodities. This study aims to analyse the dynamics in virtual water trade of Tunisia in relation to environmental and socio-economic factors such as GDP, irrigated land, precipitation, population and water scarcity. The water footprint of crop production is estimated using AquaCrop for six crops over the period 1981-2010...
September 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28916427/simultaneous-detection-and-differentiation-of-three-potyviridae-viruses-in-sweet-potato-by-a-multiplex-taqman-real-time-rt-pcr-assay
#15
Pingxiu Lan, Fan Li, Jorge Abad, Lingling Pu, Ruhui Li
A multiplex TaqMan real time RT-PCR was developed for detection and differentiation of Sweet potato virus G, Sweet potato latent virus and Sweet potato mild mottle virus in one tube. Amplification and detection of a fluorogenic cytochrome oxidase gene was included as an internal control. The assay was compared with a multiplex RT-PCR developed in the initial study for the detection and differentiation of the three viruses and host 18S rRNA. Primers and/or probes of the two assays were designed from conserved regions of each virus...
September 12, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28916301/enhancing-monoterpene-alcohols-in-sweet-potato-shochu-using-the-diglycoside-specific-%C3%AE-primeverosidase
#16
Yuichiro Sato, Jinshun Han, Hisashi Fukuda, Shigeaki Mikami
Monoterpene alcohols (MTAs) are characteristic flavour-imparting compounds in sweet potato shochu (Japanese distilled spirit) that are liberated following hydrolysis by specific enzymes during fermentation. In the present study, we evaluated the effect of an exogenously added diglycoside-specific β-glycosidase (β-primeverosidase) on aroma formation during shochu brewing using various sweet potato species to address whether MTAs are predominantly present as diglycosidic precursors in raw materials. The results showed that the amount of MTAs produced from enzyme-treated mash was dramatically increased by 2- to 9-fold compared with untreated controls, and the increase varied with sweet potato species...
September 12, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28912766/environmental-bacteriophages-of-the-emerging-enterobacterial-phytopathogen-dickeya-solani-show-genomic-conservation-and-capacity-for-horizontal-gene-transfer-between-their-bacterial-hosts
#17
Andrew Day, Jiyoon Ahn, Xinzhe Fang, George P C Salmond
Dickeya solani is an economically important phytopathogen widespread in mainland Europe that can reduce potato crop yields by 25%. There are no effective environmentally-acceptable chemical systems available for diseases caused by Dickeya. Bacteriophages have been suggested for use in biocontrol of this pathogen in the field, and limited field trials have been conducted. To date only a small number of bacteriophages capable of infecting D. solani have been isolated and characterized, and so there is a need to expand the repertoire of phages that may have potential utility in phage therapy strategies...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28912434/food-grade-filler-particles-as-an-alternative-method-to-modify-the-texture-and-stability-of-myofibrillar-gels
#18
Andrew J Gravelle, Shai Barbut, Alejandro G Marangoni
A series of food grade particles were characterized for their potential as fillers in myofibrillar gels. The fillers were separated into (i) hydrophilic, insoluble, crystalline particles and (ii) starch granules. The particles used were microcrystalline cellulose, oat fiber and walnut shell flour, as well as potato and tapioca starches. Crystalline particles increased hardness and decreased recovery properties. Although all of these fillers decreased the T2 relaxation time of water, this was dependent on particle type and size...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28912321/draft-genome-sequence-of-the-plant-pathogen-streptomyces-sp-strain-11-1-2
#19
Luke Bown, Dawn R D Bignell
Streptomyces sp. strain 11-1-2 is a Gram-positive filamentous bacterium that was isolated from a common scab lesion on a potato tuber. The strain is highly pathogenic to plants but does not produce the virulence-associated Streptomyces phytotoxin thaxtomin A. Here, we report the draft genome sequence of Streptomyces sp. 11-1-2.
September 14, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28911647/characterization-and-hepatoprotective-activity-of-anthocyanins-from-purple-sweet-potato-ipomoea-batatas-l-cultivar-eshu-no-8
#20
Lin Wang, Ying Zhao, Qing Zhou, Chun-Li Luo, Ai-Ping Deng, Zi-Cheng Zhang, Jiu-Liang Zhang
The hepatoprotective activity of anthocyanin-rich purple sweet potato extract (APSPE) was demonstrated. Sixty mice were randomly divided into six groups: control group [without carbon tetrachloride (CCl4) or APSPE]; model group (with CCl4 only); positive control group (50 mg/kg body weight silymarin); low-dose group (100 mg/kg body weight APSPE); medium-dose group (200 mg/kg body weight APSPE); and high-dose group (400 mg/kg body weight APSPE). After 10 days intragastric administration of the respective supplements, the mice in all groups except control were injected intraperitoneally with CCl4 (0...
July 2017: Journal of Food and Drug Analysis
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