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juglans regia L.

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https://www.readbyqxmd.com/read/28498991/population-differentiation-in-common-walnut-juglans-regia-l-across-major-parts-of-its-native-range-insights-from-molecular-and-morphometric-data
#1
Wladimir Roor, Heino Konrad, Davletbek Mamadjanov, Thomas Geburek
Juglans regia is an economically highly important species for fruit and wood production in the warm temperate and subtropical zones of the Northern Hemisphere. Besides the natural influence of climatic and geomorphological barriers, its genetic structure has been strongly modified by humans and the population history is still unclear. For this reason, we investigated mainly natural walnut populations across the Eurasian continent on a molecular (44 populations, 581 trees) and morphometric level (23 populations, 1391 ripe nuts)...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28490125/colour-and-in-vitro-quality-attributes-of-walnuts-from-different-growing-conditions-correlate-with-key-precursors-of-primary-and-secondary-metabolism
#2
Claudia Fuentealba, Ignacia Hernández, Sebastian Saa, Lea Toledo, Pamela Burdiles, Rosana Chirinos, David Campos, Patrick Brown, Romina Pedreschi
Walnuts (Juglans regia L.) are well known for their flavour, nutritional and health properties. The light colour of walnuts is a quality attribute that leads to consumer preference. The aim of this study was to correlate attributes such as colour and antioxidant capacity with the precursors of primary and secondary metabolism. Two growing areas and four different colours of walnuts cv. Chandler from the central region of Chile were evaluated. Walnuts grown in the zone with Andes Mountains influence showed higher (p<0...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28488188/spring-bud-growth-depends-on-sugar-delivery-by-xylem-and-water-recirculation-by-phloem-m%C3%A3-nch-flow-in-juglans-regia
#3
Aude Tixier, Or Sperling, Jessica Orozco, Bruce Lampinen, Adele Amico Roxas, Sebastian Saa, J Mason Earles, Maciej A Zwieniecki
During spring, bud growth relies on long-distance transport of remotely stored carbohydrates. A new hypothesis suggests this transport is achieved by the interplay of xylem and phloem. During the spring, carbohydrate demand of developing buds often exceeds locally available storage, thus requiring the translocation of sugars from distant locations like limbs, stems and roots. Both the phloem and xylem have the capacity for such long-distance transport, but their functional contribution is unclear. To address this ambiguity, the spatial and temporal dynamics of carbohydrate availability in extension shoots of Juglans regia L...
May 9, 2017: Planta
https://www.readbyqxmd.com/read/28401378/protective-effect-of-juglans-regia-l-walnut-extract-against-oxidative-dna-damage
#4
Cinzia Calcabrini, Roberta De Bellis, Umberto Mancini, Luigi Cucchiarini, Vilberto Stocchi, Lucia Potenza
Walnuts (Juglans regia L.) are relevant components of the Mediterranean diet providing important macronutrients, micronutrients and other bioactive constituents including unsaturated fatty acids, proteins, fiber, vitamins, minerals, phytosterols and polyphenols. Although the walnut beneficial effects in human health are widely recognized by a lot of epidemiologic studies very little is known regarding its effect on damaged DNA. The aim of the present study was to investigate the effect of Juglans regia L. ethanolic extract from kernel on the induction of DNA strand breaks by thiol/Fe(3+)/O2 mixed function oxidase, tert-butyl hydroperoxide or UVC radiations in acellular and cellular models...
June 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28374545/identification-of-walnut-husk-juglans-regia-l-volatiles-and-the-behavioral-response-of-the-invasive-walnut-husk-fly-rhagoletis-completa-cresson
#5
Landry Sarles, Antoine Boullis, Bérénice Fassotte, Georges Lognay, Agnès Verhaeghe, Frédéric Francis, François J Verheggen
BACKGROUND: Several European countries are important walnut (Juglans regia L.) producers. However, these countries must contend with the recent introduction of the Walnut Husk Fly, Rhagoletis completa Cresson (Diptera, Tephritidae), which is causing severe economic losses, especially in organic production. Because most Tephritid fruit flies use kairomones in their search for host plants, we hypothesize that this highly specialist species orients toward the volatile blend released by walnut husks...
April 3, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28366844/an-assessment-of-the-nutraceutical-potential-of-juglans-regia-l-leaf-powder-in-diabetic-rats
#6
Adriano Mollica, Gokhan Zengin, Marcello Locatelli, Azzurra Stefanucci, Giorgia Macedonio, Giuseppe Bellagamba, Olakunle Onaolapo, Adejoke Onaolapo, Falilat Azeez, Adeola Ayileka, Ettore Novellino
In this study, we evaluated the nutraceutical potential of Juglans regia L. (a dietary supplement and food-additive) by evaluating the in-vitro anti-diabetic potential and by assessing the in-vivo anti-hyperglycaemic, anti-hyperlipidaemic, and organ-protective effects of freshly-dried and powdered leaves of J. regia L. in diabetic rats. In the in-vivo experiments, dry powder of J. regia L. leaf (25, 50 and 100 mg/kg) was administered orally, twice daily (9.00 a.m. and 5 p.m.) to streptozocin-induced diabetic rats over a period of 28 days, during which body weight and blood glucose were monitored weekly...
March 30, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28289857/-neuronal-like-differentiation-of-murine-mesenchymal-stem-cell-line-stimulation-by-juglans-regia-l-oil
#7
Varsha Singh, Mingma Sherpa
Mesenchymal stem cells have been extensively used for cell-based therapies especially in neuronal diseases. Studies still continue to delineate mechanisms involved in differentiating mesenchymal stem cells into neuronal cells under experimental conditions as they have low mortality rate and hence, the number of cells available for experiments is much more limited. Culturing and differentiating of neuronal cell is more challenging as they do not undergo cell division thus, bringing them to differentiate proves to be a difficult task...
March 13, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28286541/an-evaluation-of-inexpensive-methods-for-root-image-acquisition-when-using-rhizotrons
#8
Awaz Mohamed, Yogan Monnier, Zhun Mao, Guillaume Lobet, Jean-Luc Maeght, Merlin Ramel, Alexia Stokes
BACKGROUND: Belowground processes play an essential role in ecosystem nutrient cycling and the global carbon budget cycle. Quantifying fine root growth is crucial to the understanding of ecosystem structure and function and in predicting how ecosystems respond to climate variability. A better understanding of root system growth is necessary, but choosing the best method of observation is complex, especially in the natural soil environment. Here, we compare five methods of root image acquisition using inexpensive technology that is currently available on the market: flatbed scanner, handheld scanner, manual tracing, a smartphone application scanner and a time-lapse camera...
2017: Plant Methods
https://www.readbyqxmd.com/read/28257470/rethinking-the-history-of-common-walnut-juglans-regia-l-in-europe-its-origins-and-human-interactions
#9
Paola Pollegioni, Keith Woeste, Francesca Chiocchini, Stefano Del Lungo, Marco Ciolfi, Irene Olimpieri, Virginia Tortolano, Jo Clark, Gabriel E Hemery, Sergio Mapelli, Maria Emilia Malvolti
Common walnut (Juglans regia L) is an economically important species cultivated worldwide for its high-quality wood and nuts. It is generally accepted that after the last glaciation J. regia survived and grew in almost completely isolated stands in Asia, and that ancient humans dispersed walnuts across Asia and into new habitats via trade and cultural expansion. The history of walnut in Europe is a matter of debate, however. In this study, we estimated the genetic diversity and structure of 91 Eurasian walnut populations using 14 neutral microsatellites...
2017: PloS One
https://www.readbyqxmd.com/read/28243724/in-vitro-gene-expression-and-mrna-translocation-from-transformed-walnut-juglans-regia-rootstocks-expressing-dsred-fluorescent-protein-to-wild-type-scions
#10
Xiaochen Liu, Sriema L Walawage, Charles A Leslie, Abhaya M Dandekar, David M Tricoli, Hengkang Hu, Youjun Huang, Jiaqi Zhang, Chuanmei Xv, Jianqin Huang, Qixiang Zhang
An in vitro grafting method was developed for examining gene translocation from rootstock to scion in walnut. Results showed the DsRED gene itself was not translocated but expressed mRNA was. Grafting is widely used in plants, especially in fruit and nut crops. Selected rootstocks can control scion growth and physiological traits, including shortening of the juvenile phase and controlling tree size. Rootstocks also can provide improved soil adaptation and pathogen resistance. Development of genetically modified (GM) fruit crops has progressed recently, but commercial cultivation is still limited due to the time required for evaluation and issues with deregulation...
February 27, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28191338/accelerated-burn-wound-closure-in-mice-with-a-new-formula-based-on-traditional-medicine
#11
Mehrnaz Mehrabani, Seyyed Mohsen Seyyedkazemi, Mohammad Hadi Nematollahi, Elham Jafari, Mitra Mehrabani, Mohammad Mehdipour, Zahra Sheikhshoaee, Ali Mandegary
BACKGROUND: A combination of the oils of sesame, hemp, wild pistachio, and walnut has been used for treatment of skin disorders, including wound burns, in some parts of Kerman, Iran. Evaluation of this remedy in the form of a pharmaceutical formulation in animal models can pave the way for its future application in wound burn healing in humans. OBJECTIVES: This experimental study investigated the healing potential of a new formula (NF) based on folk medicine from Iran for the treatment of third degree burns in mice...
November 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28132043/the-effect-of-extract-of-greek-walnut-juglans-regia-l-septa-on-some-functional-characteristics-of-erythrocytes
#12
L Ramishvili, M Gordeziani, E Tavdishvili, N Bedineishvili, D Dzidziguri, N Kotrikadze
Administration of plant extracts for the treatment of several different diseases is an important approach ofmodern medicine.The reason must be an easy way of application, low price and the complex action of herbal medicines. The aim of the work was to study the effect of extract of walnut (Juglans regia L.) septa on the functional characteristics of erythrocytes during administration of cytotoxic agent - cyclophosphamide (experimental model of leukopenia). The material for the study was blood of the intact and experimental white mice...
December 2016: Georgian Medical News
https://www.readbyqxmd.com/read/28101461/acute-and-subchronic-toxicity-study-of-the-median-septum-of-juglans-regia-in-wistar-rats
#13
Asma Ravanbakhsh, Majid Mahdavi, Ghader Jalilzade-Amin, Shahram Javadi, Masoud Maham, Daryosh Mohammadnejad, Mohammad Reza Rashidi
Purpose: Median septum of Juglans regia L. (Juglandaceae) with anti-diabetic effects has been used in Iranian traditional medicine. The present study estimates both oral acute and subchronic toxicities. Methods: In the oral acute toxicity study, female Wistar rats were treated with doses of 10, 100, 1000, 1600, 2900 and 5000 mg/ kg of the Juglans regia septum of methanol extract (JRSME), and were monitored for 14 days. In subchronic study, JRSME was administered by gavage at dose of 1000 mg/kg daily in Wistar rats for 28 days...
December 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28004034/klebsiella-pneumoniae-planktonic-and-biofilm-reduction-by-different-plant-extracts-in-vitro-study
#14
Lucas De Paula Ramos, Carlos Eduardo da Rocha Santos, Daphne Camargo Reis Mello, Lígia Nishiama Theodoro, Felipe Eduardo De Oliveira, Graziella N Back Brito, Juliana Campos Junqueira, Antonio Olavo Cardoso Jorge, Luciane Dias de Oliveira
This study evaluated the action of Pfaffia paniculata K., Juglans regia L., and Rosmarius officinalis L. extracts against planktonic form and biofilm of Klebsiella pneumoniae (ATCC 4352). Minimum inhibitory concentration (MIC) and minimum microbicidal concentration (MMC) values were determined for each extract by microdilution broth method, according to Clinical and Laboratory Standards Institute. Next, antimicrobial activity of the extracts on biofilm was analyzed. For this, standardized suspension at 10(7) UFC/mL of K...
2016: TheScientificWorldJournal
https://www.readbyqxmd.com/read/28000512/developmental-role-of-phenylalanine-ammonia-lyase-pal-and-cinnamate-4-hydroxylase-c4h-genes-during-adventitious-rooting-of-juglans-regia-l-microshoots
#15
Monireh Cheniany, Ali Ganjeali
Phenylalanine-ammonia-lyase and cinnamate-4-hydroxylase play important role in the phenylpropanoid pathway, which produces many biologically important secondary metabolites participating in normal plant development. Flavonol quercetin is the main representant of these compounds that has been identified in numerous Juglans spp. In this survey, the developmental expression patterns of PAL and C4H genes during in vitro rooting of two walnut cultivars 'Sunland' and 'Howard' was examined by RT-PCR. To understand the potential role in rooting, the changing pattern of endogenous content of quercetin was also analyzed by HPLC...
December 2016: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/27852104/a-pair-of-taxifolin-3-o-arabinofuranoside-isomers-from-juglans-regia-l
#16
Huanxin Zhao, Hong Bai, Yuanchao Jing, Wei Li, Shujun Yin, Honglei Zhou
Diaphragma juglandis Fructus has been known for its effect on tonifying kidney in traditional Uighur medicine. During our ongoing studies on the discovery of biologically active compounds from folk medicine, a pair of flavanonol glycoside isomers named (2S,3S)-taxifolin-3-O-α-d-arabinofuranoside (1) and (2S,3S)-taxifolin-3-O-α-l-arabinofuranoside (2) were isolated, among them, 1 was a new compound. It is the first report of taxifolin-3-O-arabinofuranosides in both α-d and α-l configuration forms in genus Juglans...
April 2017: Natural Product Research
https://www.readbyqxmd.com/read/27744101/comparison-of-antifungal-activity-of-extracts-from-different-juglans-regia-cultivars-and-juglone
#17
D Wianowska, S Garbaczewska, A Cieniecka-Roslonkiewicz, A L Dawidowicz, A Jankowska
This study discusses the similarities and differences between the antifungal activity of extracts from walnut green husks of Lake, Koszycki, UO1, UO2 and non-grafted cultivars as well as juglone against the plant pathogenic fungi such as Alternaria alternata, Rhizoctonia solani, Botrytis cinerea, Fusarium culmorum, Phytophthora infestans as well as Ascosphaera apis causing chalkbrood disease in honey bees. The obtained data show that the antifungal activities of the extracts do not always depend on the antifungal activity of juglone, and that they can be modulated by their other components...
November 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27717454/short-versus-long-term-effects-of-cyanide-on-sugar-metabolism-and-transport-in-dormant-walnut-kernels
#18
Zahra Gerivani, Elham Vashaee, Hamid Reza Sadeghipour, Mahnaz Aghdasi, Zahra-Sadat Shobbar, Majid Azimmohseni
Tree seed dormancy release by cold stratification accompanies with the embryo increased gluconeogenesis competence. Cyanide also breaks seed dormancy however, integrated information about its effects on carbon metabolism is lacking. Accordingly, the impacts of HCN on germination, lipid gluconeogenesis and sugar transport capacity of walnut (Juglans regia L.) kernels were investigated during 10-days period prior to radicle protrusion. HCN increased walnut kernel germination and within four days of kernel incubation, hastened the decline of starch, reducing and non-reducing sugars and led to greater activities of alkaline invertase and glucose-6-phosphate dehydrogenase...
November 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27679440/antioxidant-and-anticancer-activities-of-walnut-juglans-regia-l-protein-hydrolysates-using-different-proteases
#19
Raheleh Jahanbani, S Mahmood Ghaffari, Maryam Salami, Kourosh Vahdati, Houri Sepehri, Nazanin Namazi Sarvestani, Nader Sheibani, Ali Akbar Moosavi-Movahedi
Walnut (Juglans regia L.) contains approximately 20-25 % protein with abundant essential amino acids. The enzymatic hydrolysate of Persian walnut (Chandler) seed proteins was prepared by incubation with three different proteases, including pancreatic chymotrypsin and trypsin, and a microbial enzyme proteinase K. The hydrolysates were found to possess excellent antioxidant capacities. The peptide fractions scavenged the 2, 2'-anizo-bis-(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) free radicals and inhibited the activity of reactive oxygen species...
December 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27591384/in-vitro-activity-of-plant-extracts-against-biofilm-producing-food-related-bacteria
#20
Antonia Nostro, Alessandra Guerrini, Andreana Marino, Massimo Tacchini, Mara Di Giulio, Alessandro Grandini, Methap Akin, Luigina Cellini, Giuseppe Bisignano, Hatice T Saraçoğlu
The identification of effective antimicrobial agents also active on biofilms is a topic of crucial importance in food and industrial environment. For that purpose methanol extracts of Turkish plants, Ficus carica L., Juglans regia L., Olea europaea L., Punica granatum L. and Rhus coriaria L., were investigated. Among the extracts, P. granatum L. and R. coriaria L. showed the best antibacterial activity with minimum inhibitory concentrations (MIC) of 78-625μg/ml for Listeria monocytogenes and Staphylococcus aureus and 312-1250μg/ml for Escherichia coli and Pseudomonas aeruginosa...
December 5, 2016: International Journal of Food Microbiology
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