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juglans regia L.

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https://www.readbyqxmd.com/read/29792315/genomic-variation-among-and-within-six-juglans-species
#1
Kristian A Stevens, Keith Woeste, Sandeep Chakraborty, Marc W Crepeau, Charles A Leslie, Pedro J Martínez-García, Daniela Puiu, Jeanne Romero-Severson, Mark Coggeshall, Abhaya M Dandekar, Daniel Kluepfel, David B Neale, Steven L Salzberg, Charles H Langley
Genomic analysis in Juglans (walnuts) is expected to transform the breeding and agricultural production of both nuts and lumber. To that end, we report here the determination of reference sequences for six additional relatives of Juglans regia : Juglans sigillata (also from section Dioscaryon ), Juglans nigra , Juglans microcarpa, Juglans hindsii (from section Rhysocaryon ) , Juglans cathayensis (from section Cardiocaryon ), and the closely related Pterocarya stenoptera. While these are 'draft' genomes, ranging in size between 640Mbp and 990Mbp, their contiguities and accuracies can support powerful annotations of genomic variation that are often the foundation of new avenues of research and breeding...
May 23, 2018: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29772800/identification-and-expression-of-mirnas-related-to-female-flower-induction-in-walnut-juglans-regia-l
#2
Li Zhou, Shaowen Quan, Hang Xu, Li Ma, Jianxin Niu
Flower induction is an essential stage in walnut ( Juglans regia L.) trees, directly affecting yield, yield stability, fruit quality and commodity value. The objective of this study was to identify miRNAs related to female flower induction via high-throughput sequencing and bioinformatics analysis. A total of 123 miRNAs were identified including 51 known miRNAs and 72 novel miRNAs. Differential expression was observed in 19 of the known miRNAs and 34 of the novel miRNAs. Twelve miRNAs were confirmed by RT-qPCR...
May 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29762631/aqueous-extracts-of-walnut-juglans-regia-l-leaves-quantitative-analyses-of-hydroxycinnamic-and-chlorogenic-acids
#3
Anggy Lusanna Gutiérrez Ortiz, Federico Berti, Luciano Navarini, Paola Crisafulli, Silvia Colomban, Cristina Forzato
Identification of both hydroxycinnamic and chlorogenic acids present in aqueous extracts of walnut leaves (Juglans regia L.) were carried out by using, for the first time, standard compounds not commercially available for qualitative identification. In particular, in addition to caffeic, ferulic, p-coumaric and sinapic acids, cis and trans mono-caffeoylquinic, dicaffeoylquinic, mono-feruloylquinic and cis and trans mono-p-coumaroylquinic acid isomers were detected and quantified by Ultra High Pressure Liquid Chromatography and the seasonal variations of these secondary metabolites were investigated...
May 14, 2018: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/29735072/characterization-of-virgin-walnut-oils-and-their-residual-cakes-produced-from-different-varieties
#4
Rosa M Ojeda-Amador, María Desamparados Salvador, Sergio Gómez-Alonso, Giuseppe Fregapane
This study addresses the composition and properties of different walnut varieties (Chandler, Hartley and Lara), in particular their virgin oils and residual cakes obtained by screw pressing employing different cultivars. Among nuts, walnut (Juglans regia L.) exhibits interesting nutritional value, mainly due to their high content in linoleic acid, phenolic and tocopherol compounds, which show antioxidant and other healthy properties. Valuable results related to fatty acid profile and minor components were observed...
June 2018: Food Research International
https://www.readbyqxmd.com/read/29663801/identification-and-characterization-of-phenolic-compounds-in-black-walnut-kernels
#5
Danh Vu, Phuc Vo, Mark Coggeshall, Chung-Ho Lin
Black walnuts ( Juglans nigra L.) are highly valued for producing phenolic-enriched nuts. The objectives of this study were to identify and characterize phenolic contents of eleven different black walnut cultivars and compare the levels of these phenolics between black walnuts and English walnut ( Juglans regia L.). Totally, 16 phenolics including phenolic acids, flavonoids, and catechins were identified in the black walnut kernels, with ellagic acid predominating over the other phenolics. Significant differences were noted for the levels of quinic acid, gallic acid, 1,3,6-trigalloylglucose, catechin, and penta-O-galloyl-β-D-glucose between the studied black walnuts and English walnut...
April 17, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29655676/protective-effect-of-juglans-regia-l-against-ultraviolet-b-radiation-induced-inflammatory-responses-in-human-epidermal-keratinocytes
#6
Umar Muzaffer, V I Paul, Nagarajan Rajendra Prasad, Ramasamy Karthikeyan, Balupillai Agilan
BACKGROUND: Juglans regia L. has a history of traditional medicinal use for the treatment of various maladies and have been documented with significant antioxidant and antiinflammatory properties. Although all parts of the plant are medicinally important, but male the flower of the plant has not been yet investigated against the photo-damage. PURPOSE: The present study, we sought to determine the photoprotective effect of the male flower of J. regia L. against ultraviolet-B radiation-induced inflammatory responses in human skin cells...
March 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29649523/prediction-of-the-antimicrobial-activity-of-walnut-juglans-regia-l-kernel-aqueous-extracts-using-artificial-neural-network-and-multiple-linear-regression
#7
Hatice Kavuncuoglu, Erhan Kavuncuoglu, Seyda Merve Karatas, Büsra Benli, Osman Sagdic, Hasan Yalcin
The mathematical model was established to determine the diameter of inhibition zone of the walnut extract on the twelve bacterial species. Type of extraction, concentration, and pathogens were taken as input variables. Two models were used with the aim of designing this system. One of them was developed with artificial neural networks (ANN), and the other was formed with multiple linear regression (MLR). Four common training algorithms were used. Levenberg-Marquardt (LM), Bayesian regulation (BR), scaled conjugate gradient (SCG) and resilient back propagation (RP) were investigated, and the algorithms were compared...
April 9, 2018: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/29605650/evaluating-the-anti-biofilm-and-antibacterial-effects-of-juglans-regia-l-extracts-against-clinical-isolates-of-pseudomonas-aeruginosa
#8
Samaneh Dolatabadi, Hediyeh Nesari Moghadam, Maasoumeh Mahdavi-Ourtakand
OBJECTIVE: Pseudomonas aeruginosa, an opportunistic pathogen, can cause serious health problems and produces several virulence factors. The most important of these factors is biofilm. Many studies suggest administration of new generation of antibiotics, as P. aeruginosa biofilm has developed high resistance to antimicrobial drugs. Emergence of multidrug resistant (MDR) strains has resulted in screening biofilm inhibitors from natural products or modified from natural compounds. To test this hypothesis, we evaluated the inhibitory effects (antibacterial and antibiofilm) of Juglans regia L...
March 29, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29556565/-juglans-regia-l-protects-against-uvb-induced-apoptosis-in-human-epidermal-keratinocytes
#9
Umar Muzaffer, V I Paul, Nagarajan Rajendra Prasad, Ramasamy Karthikeyan
The present study was aimed to investigate the photoprotective effect of the male flower of J. regia L. (MEJR) against ultraviolet-B induced apoptosis in human skin cells. Human skin epidermal keratinocytes were pretreated with the MEJR (80 µg/ml, has been selected after MTT assay), prior to 30 min UVB-irradiation at a dose of 20 mJ/cm2 . Mitochondrial membrane potential was evaluated using Rhodamine-123 staining; the % apoptosis by Hoechst staining and acridine orange staining; DNA damage was measured by comet assay...
March 2018: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/29472324/complete-genome-sequence-of-xanthomonas-arboricola-pv-juglandis-strain-dw3f3-isolated-from-a-juglans-regia-l-bacterial-blighted-fruitlet
#10
Benzhong Fu, Qianqian Chen, Mi Wei, Jieqian Zhu, Lulu Zou, Guoyuan Li, Lihua Wang
Here, we report the complete genome sequence of Xanthomonas arboricola pv. juglandis DW3F3, a strong pathogenic strain isolated from blighted walnut immature fruit ( Juglans regia L. cv. Qingxiang). The genome consists of a single chromosome (5,144 kb).
February 22, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29391625/bioefficacy-potential-of-different-genotypes-of-walnut-juglans-regia-l
#11
Uzma Noor Shah, Javid Iqbal Mir, Nazeer Ahmed, Sumira Jan, Khalid Majid Fazili
The purpose of investigation was to assess the phytochemical and nutraceutical of walnut in leaf extracts through diverse quantitative and qualitative phytochemical tests followed by array of assays. The screening of 50 elite walnut genotypes which exhibited wide range of discrepancy in terms of phytochemicals as well as their anti-oxidant potential was done. Walnut genotypes displayed maximum divergence in quercetin content (2.86-5.78 mg/100 g) as represented by cluster analysis. The phenolic rich genotypes exhibiting total phenols (37...
February 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29332575/protective-role-of-italian-juglans-regia-l-nut-ethanolic-extract-in-human-keratinocytes-under-oxidative-and-inflammatory-stress
#12
Cinzia Calcabrini, Umberto Mancini, Roberta De Bellis, Alessandra Frati, Anna Rita Mastrogiacomo, Giosue Annibalini, Piero Sestili, Luigi Cucchiarini, Vilberto Stocchi, Lucia Potenza
OBJECTIVE: In this research, fatty acid profile and polyphenolic content of an ethanolic extract of walnut from Juglans regia L. collected in Central Italy, were characterized. The potential antioxidant and anti-inflammatory effects of the extract were investigated in the human keratinocytes cell line. METHODS: Fatty acid profile was determined by gas chromatography/mass spectrometry analysis, total phenolic content by Folin-Ciocalteu method and aluminum chloride colorimetric method was used for determination of total flavonoids...
2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29299206/therapeutic-potential-of-juglans-regia-l-leaf-extract-against-diabetic-retinopathy-in-rat
#13
Davood Nasiry, Ali Reza Khalatbary, Hassan Ahmadvand
Objectives: Oxidative stress has a pivotal role in the pathogenesis of diabetic retinopathy (DR). Juglans regia L . (JRL) leaf extract has hypoglycemic and antioxidative properties. This study aimed to determine the ameliorative effects of JRL against diabetic retinopathy. Materials and Methods: The DR rat model was generated by injection of streptozotocin (STZ). A subset of the diabetic rats received JRL or metformin after the onset of hyperglycemia. Histopathology and immunohistochemistry of apoptotic and inflammatory factors were assessed along with biochemical assessments of lipid peroxidation and antioxidant status...
November 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29286331/chemical-constituents-of-the-ethyl-acetate-extract-from-diaphragma-juglandis-fructus-and-their-inhibitory-activity-on-nitric-oxide-production-in-vitro
#14
Dan Wang, Yan Mu, Hongjing Dong, Huijiao Yan, Cui Hao, Xiao Wang, Lisi Zhang
Diaphragma juglandis fructus contains various bioactive constituents. Fourteen compounds were isolated from Diaphragma juglandis fructus by preparative high performance liquid chromatography (pre-HPLC) and high-speed counter-current chromatography (HSCCC). Their structures were identified by nuclear magnetic resonance (NMR) and electrospray ionization mass spectrometry (ESI-MS). Compounds (+)-dehydrovomifoliol ( 12 ), (6 R ,9 R )-9-hydroxymegastigman-4-en-3-one ( 13 ) and (6 R ,9 S )-9-hydroxymegastigman-4-en-3-one ( 14 ) are found from Juglans regia L...
December 29, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29023476/genetic-and-ecological-insights-into-glacial-refugia-of-walnut-juglans-regia-l
#15
Mallikarjuna Aradhya, Dianne Velasco, Zakir Ibrahimov, Biimyrza Toktoraliev, David Maghradze, Mirza Musayev, Zviadi Bobokashvili, John E Preece
The distribution and survival of trees during the last glacial maximum (LGM) has been of interest to paleoecologists, biogeographers, and geneticists. Ecological niche models that associate species occurrence and abundance with climatic variables are widely used to gain ecological and evolutionary insights and to predict species distributions over space and time. The present study deals with the glacial history of walnut to address questions related to past distributions through genetic analysis and ecological modeling of the present, LGM and Last Interglacial (LIG) periods...
2017: PloS One
https://www.readbyqxmd.com/read/28975089/traditional-uses-of-medicinal-plants-to-prevent-and-treat-diabetes-an-updated-review-of-ethnobotanical-studies-in-iran
#16
REVIEW
Majid Asadi-Samani, Mohammad-Taghi Moradi, Leila Mahmoodnia, Shahla Alaei, Fatemeh Asadi-Samani, Tahra Luther
BACKGROUND: Obesity and physical inactivity are currently on the rise due to industrialization of the communities, which has recently led to increased incidence of different diseases such as diabetes. Epidemiological studies and figures have demonstrated the growing incidence of diabetes. Relevantly, the side effects of chemical drugs have led patients to use medicinal plants and traditional approaches despite advances in development of chemical drugs. The aim of this review article is to report the medicinal plants and their traditional uses to prevent and treat diabetes according to the findings of ethnobotanical studies conducted in different regions of Iran...
July 2017: Journal of Nephropathology
https://www.readbyqxmd.com/read/28969623/protective-effects-of-methanolic-extract-of-juglans-regia-l-leaf-on-streptozotocin-induced-diabetic-peripheral-neuropathy-in-rats
#17
Davood Nasiry, Ali Reza Khalatbary, Hassan Ahmadvand, Fereshteh Talebpour Amiri, Esmaeil Akbari
BACKGROUND: Oxidative stress has a pivotal role in the pathogenesis and development of diabetic peripheral neuropathy (DPN), the most common and debilitating complications of diabetes mellitus. There is accumulating evidence that Juglans regia L. (GRL) leaf extract, a rich source of phenolic components, has hypoglycemic and antioxidative properties. This study aimed to determine the protective effects of Juglans regia L. leaf extract against streptozotocin-induced diabetic neuropathy in rat...
October 2, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28945497/antiproliferative-activity-of-walnut-juglans-regia-l-proteins-and-walnut-protein-hydrolysates
#18
Wilman Carrillo, José Angel Gómez-Ruiz, Ana Lucia Ruiz, Jõao Ernesto Carvalho
Proteins from Juglans regia L. were isolated. Then, proteins were hydrolyzed with different enzymes. Antiproliferative activity of proteins and of the protein hydrolysates of J. regia L. were evaluated using the sulforhodamine B method. Glutelin and prolamin proteins presented a high antiproliferative activity against cancer cells PC-3 (prostate) and K-562 (leukemia) with values of 43.9 and 84.4 μg/mL, respectively. The highest inhibitory effect observed was 50% at 0.25 μg/mL concentration in gastrointestinal digestion with pepsin and corolase pp in a dose-dependent manner against cancer cell UACC62 (melanoma)...
November 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28888783/phytochemical-study-of-juglans-regia-l-leaves
#19
Sebastian Schwindl, Birgit Kraus, Jörg Heilmann
A methanolic extract of Juglans regia L. leaves was fractioned by various chromatographic techniques yielding a total of 40 metabolites belonging to megastigmane, tetralone, phenylpropanoid, neolignane and juglone glycosides. Ten unknown megastigmane glucoside derivatives (juglanionosides A-K, 1-10) and six unknown tetralone glucoside derivatives (juglanosides J-O, 11-16) together with 24 known compounds - among them 16 described for the first time in Juglans - were isolated. As characteristic structural feature, the previously undescribed compounds showed acylation of the sugar units with sinapic, ferulic, coumaric, benzoic or salicylic acid...
December 2017: Phytochemistry
https://www.readbyqxmd.com/read/28802240/late-summer-photosynthesis-and-storage-carbohydrates-in-walnut-juglans-regia-l-feed-back-and-feed-forward-effects
#20
Stefano Moscatello, Simona Proietti, Angela Augusti, Andrea Scartazza, Robert P Walker, Franco Famiani, Alberto Battistelli
The effect of late summer - autumn limitation of phloem export on growth, photosynthesis and storage carbohydrate accumulation, was evaluated in walnut (Juglans regia L.). This was done by girdling current years shoots, with either all or with only a third of the leaves left in place. Nineteen days after girdling, photosynthesis was greatly reduced and after 46 days, it was about 70% lower in both girdling treatments compared to the control (ungirdled shoots). This reduction is consistent with a feed-back effect of an increased carbohydrate content of the leaves...
September 2017: Plant Physiology and Biochemistry: PPB
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