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https://www.readbyqxmd.com/read/28231166/production-and-properties-of-a-thermostable-ph-stable-exo-polygalacturonase-using-aureobasidium-pullulans-isolated-from-saharan-soil-of-algeria-grown-on-tomato-pomace
#1
Leila Bennamoun, Serge Hiligsmann, Scheherazad Dakhmouche, Amel Ait-Kaki, Fatima-Zohra Kenza Labbani, Tahar Nouadri, Zahia Meraihi, Benedetta Turchetti, Pietro Buzzini, Philippe Thonart
Polygalacturonase is a valuable biocatalyst for several industrial applications. Production of polygalacturonase using the Aureobasidium pullulans stain isolated from Saharan soil of Algeria was investigated. Its capacity to produce polygalacturonase was assessed under submerged culture using tomato pomace as an abundant agro-industrial substrate. Optimization of the medium components, which enhance polygalacturonase activity of the strain Aureobasidium pullulans, was achieved with the aid of response surface methodology...
October 29, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28219787/a-novel-archaeal-species-belonging-to-methanoculleus-genus-identified-via-de-novo-assembly-and-metagenomic-binning-process-in-biogas-reactors
#2
Panagiotis G Kougias, Stefano Campanaro, Laura Treu, Xinyu Zhu, Irini Angelidaki
Recently, a first comprehensive catalogue of microbial genomes populating biogas reactors treating manure and agro-industrial residues was determined by sequencing samples collected from 22 biogas reactors including laboratory and full scale. Among the archaeal community, one of the most abundant methanogens belongs to Methanoculleus genus and for this reason it was provisionally named Methanoculleus sp. DTU006. Its full length 16S rRNA sequence is 97% similar to Methanoculleus marisnigri JR1 and to Methanoculleus palmolei DSM 4273...
February 17, 2017: Anaerobe
https://www.readbyqxmd.com/read/28219522/molecular-assessment-of-the-bacterial-community-associated-with-cassava-manihot-esculenta-crantz-cultivation-in-cameroon
#3
Papa Saliou Sarr, Akifumi Sugiyama, Aime Didier Boyogueno Begoude, Kazufumi Yazaki, Shigeru Araki, Eiji Nawata
Bacterial communities play an important role in nutrient cycles and plant development. Their distribution and activity may depend on location and environmental heterogeneity. This study characterized soil bacterial communities in cassava fields of Eastern (Andom) and Southern (Bityili) Cameroon using molecular tools. In both sites, two improved varieties (TMS-96/1414; TMS-92/0326) and a local variety (Local) were grown in a randomized block design. Composite bulk soils were collected at 10months after planting from cassava plots...
April 2017: Microbiological Research
https://www.readbyqxmd.com/read/28219344/origin-and-phylogenetic-status-of-the-local-ashanti-dwarf-pig-adp-of-ghana-based-on-genetic-analysis
#4
Richard Osei-Amponsah, Benjamin M Skinner, Dennis O Adjei, Julien Bauer, Greger Larson, Nabeel A Affara, Carole A Sargent
BACKGROUND: The Ashanti Dwarf Pig (ADP) of Ghana is an endangered pig breed with hardy and disease resistant traits. Characterisation of animal genetic resources provides relevant data for their conservation and sustainable use for food security and economic development. We investigated the origin and phylogenetic status of the local ADP of Ghana and their crosses with modern commercial breeds based on mtDNA, MC1R, Y-chromosome sequence polymorphisms, and genome-wide SNP genotyping. RESULTS: The study involved 164 local pigs sampled from the three agro-ecological zones of Ghana...
February 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28217138/using-population-and-comparative-genomics-to-understand-the-genetic-basis-of-effector-driven-fungal-pathogen-evolution
#5
REVIEW
Clémence Plissonneau, Juliana Benevenuto, Norfarhan Mohd-Assaad, Simone Fouché, Fanny E Hartmann, Daniel Croll
Epidemics caused by fungal plant pathogens pose a major threat to agro-ecosystems and impact global food security. High-throughput sequencing enabled major advances in understanding how pathogens cause disease on crops. Hundreds of fungal genomes are now available and analyzing these genomes highlighted the key role of effector genes in disease. Effectors are small secreted proteins that enhance infection by manipulating host metabolism. Fungal genomes carry 100s of putative effector genes, but the lack of homology among effector genes, even for closely related species, challenges evolutionary and functional analyses...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28217132/effects-of-environmental-conditions-on-the-fitness-penalty-in-herbicide-resistant-brachypodium-hybridum
#6
Eyal Frenkel, Maor Matzrafi, Baruch Rubin, Zvi Peleg
Herbicide-resistance mutations may impose a fitness penalty in herbicide-free environments. Moreover, the fitness penalty associated with herbicide resistance is not a stable parameter and can be influenced by ecological factors. Here, we used two Brachypodium hybridum accessions collected from the same planted forest, sensitive (S) and target-site resistance (TSR) to photosystem II (PSII) inhibitors, to study the effect of agro-ecological parameters on fitness penalty. Both accessions were collected in the same habitat, thus, we can assume that the genetic variance between them is relatively low...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28213797/long-term-outcomes-of-tot-and-tvt-procedures-for-the-treatment-of-female-stress-urinary-incontinence-a-systematic-review-and-meta-analysis
#7
REVIEW
Umberto Leone Roberti Maggiore, Enrico Finazzi Agrò, Marco Soligo, Vincenzo Li Marzi, Alex Digesu, Maurizio Serati
INTRODUCTION AND HYPOTHESES: One of the most relevant topics in the field of pelvic floor dysfunction treatment is the long-term efficacy of surgical procedures, in particular, the use of prosthesis. Hence, a systematic review and meta-analysis was conducted to evaluate the long-term effectiveness and safety of midurethral sling (MUS) procedures for stress urinary incontinence (SUI), as reported in randomised controlled trials (RCTs) and non-randomised studies. METHODS: This systematic review is based on material searched and obtained via PubMed/Medline, Scopus, and the Cochrane Library between January 2000 and October 2016...
February 17, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28211500/video-monitoring-of-brown-planthopper-predation-in-rice-shows-flaws-of-sentinel-methods
#8
Yi Zou, Joop de Kraker, Felix J J A Bianchi, Mario D van Telgen, Haijun Xiao, Wopke van der Werf
Immobilized preys are routinely used in agro-ecological exposure studies to quantify predation of pests under field conditions, but this method has not been validated. Our purpose was to determine the validity of using immobilized adults of the major rice pest Nilaparvata lugens, brown plant hopper (BPH), as sentinels. We used direct observation by video recording to determine the causal agents of removal of field exposed BPH sentinels with two experiments: 1) we recorded removal events of dead, immobilized BPH; and 2) we compared removal of (i) dead, immobilized BPH, (ii) live, immobilized BPH, and (iii) live, mobile BPH...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28208096/how-the-structure-of-agro-food-systems-shapes-nitrogen-phosphorus-and-carbon-fluxes-the-generalized-representation-of-agro-food-system-applied-at-the-regional-scale-in-france
#9
Julia Le Noë, Gilles Billen, Josette Garnier
The aim of the study was to develop a conceptual framework to analyze the agro-food system of French agricultural regions from the angle of N, P and C circulation through five major compartments (cropland, grassland, livestock biomass, local population and potential environmental losses). To reach that goal we extended the Generalized Representation of Agro-Food System approach to P and C and applied it to French regions. Using this methodology we analyzed the relation between production pattern and N surplus, P budget, and efficient organic carbon inputs (OCeff), assuming these three indicators to be good proxies for (i) N losses to waterbodies and the atmosphere, (ii) P accumulation or depletion in soils, and (iii) potential additional C sequestration in soils, respectively...
February 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28199921/pilot-scale-bioconversion-of-rice-and-sunflower-agro-residues-into-medicinal-mushrooms-and-laccase-enzymes-through-solid-state-fermentation-with-ganoderma-lucidum
#10
P D Postemsky, M A Bidegain, R González-Matute, N D Figlas, M A Cubitto
Solid-state fermentation was evaluated at the pilot-scale for the bioconversion and valorization of rice husks and straw (RSH), or sunflower seed hulls (SSH), into medicinal mushrooms and crude extracts, with laccase activity. The average mushroom yield was 56kg dry weight per ton of agro-residues. Laccase activity in crude aqueous extracts showed its maximum value of 10,927Ukg(-1) in RSH (day 10, Exudate phase) and 16,442Ukg(-1) in SSH (day 5, Full colonization phase), the activity at the Residual substrate phase being 511Ukg(-1) in RSH and 803Ukg(-1) in SSH, respectively...
February 2, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28197689/influence-of-straw-incorporation-with-and-without-straw-decomposer-on-soil-bacterial-community-structure-and-function-in-a-rice-wheat-cropping-system
#11
Jun Zhao, Tian Ni, Weibing Xun, Xiaolei Huang, Qiwei Huang, Wei Ran, Biao Shen, Ruifu Zhang, Qirong Shen
To study the influence of straw incorporation with and without straw decomposer on bacterial community structure and biological traits, a 3-year field experiments, including four treatments: control without fertilizer (CK), chemical fertilizer (NPK), chemical fertilizer plus 7500 kg ha(-1) straw incorporation (NPKS), and chemical fertilizer plus 7500 kg ha(-1) straw incorporation and 300 kg ha(-1) straw decomposer (NPKSD), were performed in a rice-wheat cropping system in Changshu (CS) and Jintan (JT) city, respectively...
February 14, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28195575/a-land-data-assimilation-system-for-sub-saharan-africa-food-and-water-security-applications
#12
Amy McNally, Kristi Arsenault, Sujay Kumar, Shraddhanand Shukla, Pete Peterson, Shugong Wang, Chris Funk, Christa D Peters-Lidard, James P Verdin
Seasonal agricultural drought monitoring systems, which rely on satellite remote sensing and land surface models (LSMs), are important for disaster risk reduction and famine early warning. These systems require the best available weather inputs, as well as a long-term historical record to contextualize current observations. This article introduces the Famine Early Warning Systems Network (FEWS NET) Land Data Assimilation System (FLDAS), a custom instance of the NASA Land Information System (LIS) framework. The FLDAS is routinely used to produce multi-model and multi-forcing estimates of hydro-climate states and fluxes over semi-arid, food insecure regions of Africa...
February 14, 2017: Scientific Data
https://www.readbyqxmd.com/read/28195202/application-of-pristine-and-doped-sno2-nanoparticles-as-a-matrix-for-agro-hazardous-material-organophosphate-detection
#13
Naushad Khan, Taimur Athar, H Fouad, Ahmad Umar, Z A Ansari, S G Ansari
With an increasing focus on applied research, series of single/composite materials are being investigated for device development to detect several hazardous, dangerous, and toxic molecules. Here, we report a preliminary attempt of an electrochemical sensor fabricated using pristine Ni and Cr-doped nano tin oxide material (SnO2) as a tool to detect agro-hazardous material, i.e. Organophosphate (OP, chlorpyrifos). The nanomaterial was synthesized using the solution method. Nickel and chromium were used as dopant during synthesis...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28188052/-saccharomyces-cerevisiae-invasive-infection-the-first-reported-case-in-morocco
#14
A Maleb, E Sebbar, M Frikh, S Boubker, A Moussaoui, A El Mekkaoui, W Khannoussi, G Kharrasse, B Belefquih, A Lemnouer, Z Ismaili, M Elouennass
Saccharomyces cerevisiae is a cosmopolitan yeast, widely used in agro-alimentary and pharmaceutical industry. Its impact in human pathology is rare, but maybe still underestimated compared to the real situation. This yeast is currently considered as an emerging and opportunistic pathogen. Risk factors are immunosuppression and intravascular device carrying. Fungemias are the most frequent clinical forms. We report the first case of S. cerevisiae invasive infection described in Morocco, and to propose a review of the literature cases of S...
February 7, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28176140/prospecting-agro-waste-cocktail-supplementation-for-cellulase-production-by-a-newly-isolated-thermophilic-b-licheniformis-2d55
#15
Muinat Olanike Kazeem, Umi Kalsom Md Shah, Azhari Samsu Baharuddin, Nor' Aini AbdulRahman
Bacteria isolated from thermophilic environment that can produce cellulase as well as utilise agro-waste biomass have a high potential for developing thermostable cellulase required in the biofuel industry. The cost for cellulase represents a significant challenge in converting lignocellulose to fermentable sugars for biofuel production. Among three potential bacteria examined, Bacillus licheniformis 2D55 (accession no. KT799651) was found to produce the highest cellulolytic activity (CMCase 0.33 U/mL and FPase 0...
February 7, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28169024/a-sustainable-use-of-ricotta-cheese-whey-for-microbial-biodiesel-production
#16
Eleonora Carota, Silvia Crognale, Alessandro D'Annibale, Anna Maria Gallo, Silvia Rita Stazi, Maurizio Petruccioli
The increasing demand of plant oils for biodiesel production has highlighted the need for alternative strategies based either on non-food crops or agro-industrial wastes that do not compete with food and feed production. In this context, the combined use of wastewater and oleaginous microorganisms could be a valuable production option. Ricotta cheese whey (RCW), one of the major byproducts of the dairy industry, is produced in very high and steadily increasing amounts and, due to its high organic load, its disposal is cost-prohibitive...
February 3, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28168834/pyrethroid-and-ddt-tolerance-of-anopheles-gambiae-s-l-from-sengerema-district-an-area-of-intensive-pesticide-usage-in-northwestern-tanzania
#17
Anita Philbert, Sylvester Leonard Lyantagaye, Gabriele Pradel, Che Julius Ngwa, Gamba Nkwengulila
OBJECTIVE: To assess the susceptibility status of malaria vectors to pyrethroids and dichlorodiphenyltrichloroethane (DDT), characterize the mechanisms underlying resistance, and to evaluate the role of agro-chemical use in resistance selection among malaria vectors in Sengerema agro ecosystem zone, Tanzania. METHODS: Mosquito larvae were collected from farms and reared to obtain adults. The susceptibility status of An. gambiae s.l. was assessed using WHO bioassay tests to permethrin, deltamethrin, lambdacyhalothrin, etofenprox, cyfluthrin, and DDT...
February 7, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28161866/utilization-of-agro-industry-residue-for-rhamnolipid-production-by-p-aeruginosa-amb-as7-and-its-application-in-chromium-removal
#18
Mariaamalraj Samykannu, Anant Achary
Coconut oil sludge and oil cake was utilized as carbon source for biosurfactant production by Pseudomonas aeruginosa AMB AS7. The results of optimization study revealed that 1.5% (w/v) of coconut oil cake, 2% (w/v) of coconut oil sludge, pH 7.2, 37 °C, and 120 rpm were the optimum conditions for biosurfactant production. The yield coefficient of biosurfactant on biomass (Y P/X ) was 1.29 g/g. Besides, the results indicated that aeration of 0.5 vvm and agitation of 450 rpm in bioreactor resulted in high volumetric productivity of biosurfactant (r p ) and specific product formation rate (q p ) of 0...
February 4, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28161624/mixotrophic-cultivation-of-chlorella-for-local-protein-production-using-agro-food-by-products
#19
Silvia Salati, Giuliana D'Imporzano, Barbara Menin, Davide Veronesi, Barbara Scaglia, Pamela Abbruscato, Paola Mariani, Fabrizio Adani
A local strain of Chlorella vulgaris was cultivated by using cheese whey (CW), white wine lees (WL) and glycerol (Gly), coming from local agro-industrial activities, as C sources (2.2gCL(-1)) to support algae production under mixotrophic conditions in Lombardy. In continuous mode, Chlorella increased biomass production compared with autotrophic conditions by 1.5-2 times, with the best results obtained for the CW substrate, i.e. 0.52gL(-1)d(-1) of algal biomass vs. 0.24gL(-1)d(-1) of algal biomass for autotrophic conditions, and protein content for both conditions adopted close to 500gkg(-1) DM...
January 16, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28161515/first-report-on-organochlorine-pesticides-in-water-in-a-highly-productive-agro-industrial-basin-of-the-central-valley-chile
#20
Monica Montory, Javier Ferrer, Diego Rivera, María Valentina Villouta, Joan O Grimalt
The Ñuble River flows through an agricultural area in the central zone of Chile in which different types of fruits are grown. The objective of this study was to identify the levels and source of organochlorine pesticides (OCPs) in the surface waters of the Ñuble River. Surface water samples were collected at 10 sampling points and analyzed for 19 organochlorine pesticides during the dry (spring-summer) and wet (autumn-winter) periods of 2013 and 2014. The results revealed that concentrations of total OCPs in surface waters ranged from 0...
December 26, 2016: Chemosphere
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