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https://www.readbyqxmd.com/read/27585974/atypical-origin-structure-and-arrangement-of-secondary-tracheary-elements-in-the-stem-of-the-monocotyledonous-dragon-tree-dracaena-draco
#1
Joanna Jura-Morawiec
Tracheary elements within the secondary body of a dragon tree shared features characteristic of fibres. Their considerable intrusive growth resulted in a rigid network with a braid-like arrangement which contributes towards the tree-like form of the plant. Monocot cambium gives rise to xylem and phloem which become organized into vascular bundles. The xylem consists entirely of tracheids, and these undergo considerable intrusive elongation during their development, unlike the tracheids of conifers and those of vesselless dicotyledons...
September 1, 2016: Planta
https://www.readbyqxmd.com/read/27389734/morphology-seasonality-and-phylogeny-of-zschokkella-trachini-n-sp-myxozoa-myxosporea-infecting-the-gallbladder-of-greater-weever-trachinus-draco-l-from-tunisian-waters
#2
Ramla Azizi, Luis F Rangel, Ricardo Castro, Maria J Santos, Sihem Bahri
We describe a new myxosporean species, Zschokkella trachini n. sp., infecting the gallbladder of greater weever Trachinus draco Linnaeus 1758 from Tunisia. This is the first record of Zschokkella species in T. draco. Plasmodia were polysporic producing six to eight mature spores; they were attached to the gallbladder epithelium or free floating in the bile. Mature spores were sub-ovoid in the frontal view, measured 15.2 ± 0.6 (14.4-16.0) μm in length and 9.8 ± 0.7 (9.0-10.8) μm in width. Two equal spherical polar capsules 4...
November 2016: Parasitology Research
https://www.readbyqxmd.com/read/27234454/ornament-size-and-colour-as-alternative-strategies-for-effective-communication-in-gliding-lizards
#3
D A Klomp, T J Ord, I Das, A Diesmos, N Ahmad, D Stuart-Fox
Sexual ornamentation needs to be conspicuous to be effective in attracting potential mates and defending territories and indeed, a multitude of ways exists to achieve this. Two principal mechanisms for increasing conspicuousness are to increase the ornament's colour or brightness contrast against the background and to increase the size of the ornament. We assessed the relationship between the colour and size of the dewlap, a large extendible throat-fan, across a range of species of gliding lizards (Agamidae; genus Draco) from Malaysia and the Philippines...
September 2016: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/27158789/sequencing-and-analysis-of-complete-mitochondrial-genome-of-apodemus-draco-rodentia-arvicolinae
#4
Haixue Wei, Qiang Jia, Fengjun Li, Yongcheng Liu, Shunde Chen, Bin Yong
The genus Apodemus are the most common small rodents in fields. They are also one of the best species for biogeographic study and understanding the environmental changes. In this study, the complete mitochondrial genome sequence of Apodemus draco is determined. The mitogenome is 16 220 bp in length and contains 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes and a control region, with a base composition of 35.1% A, 29.0% T, 23.8% C and 12.1% G. The nucleotide sequence data of 12 heavy-strand protein-coding genes of Apodemus draco and other 23 rodents were used for mitochondrial genome phylogenetic analyses...
July 2016: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/27132716/chinese-vegetative-materia-medica-in-a-venereological-treatise-by-jean-astruc-from-1740
#5
Jacek Drobnik
ETHNOPHARMACOLOGICAL RELEVANCE: Historical medical sources can be still queried for forgotten cures and remedies. Traditional Chinese medicine has dealt with lues venerea (syphilis) since the Five Dynasties period (10th century). Chinese indigenous materia medica and remedies recorded, studied or imported by the Europeans can reveal known or quite unknown medicinal plants. The studied Jean Astruc's work is a published ethnopharmacological survey carried out in Beijing in the 1730s and it deserves a modern interpretation...
July 1, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/26631440/phenolic-group-on-a-ring-is-key-for-dracoflavan-b-as-a-selective-noncompetitive-inhibitor-of-%C3%AE-amylase
#6
Zhi Siang Toh, Hongyu Wang, Yew Mun Yip, Yuyun Lu, Benedict Jeffrey Ang Lim, Daiwei Zhang, Dejian Huang
A high throughput assay was applied to guide the isolation of a new pancreatic α-amylase inhibitor, dracoflavan B, from the dragon's blood resin from Daemonorops draco. Applying C18 column, we successfully isolated both diastereomers and their structures verified by (1)H NMR spectra in comparison with the literature values. Their activity in inhibition of pancreatic α-amylase with comparable IC50 values of 23μM (A type) and 27μM (B type) that are similar to that of acarbose. Dracoflavan B shows much weaker activity in inhibiting bacterial α-amylase and no activity towards fungal α-amylase...
December 15, 2015: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/26308499/sequencing-and-analysis-of-complete-mitochondrial-genome-of-apodemus-draco-rodentia-arvicolinae
#7
Haixue Wei, Qiang Jia, Fengjun Li, Yongcheng Liu, Shunde Chen, Bin Yong
The genus Apodemus are the most common small rodents in fields. They are also one of the best species for biogeographic study and understanding the environmental changes. In this study, the complete mitochondrial genome sequence of Apodemus draco is determined. The mitogenome is 16 220 bp in length and contains 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes and a control region, with a base composition of 35.1% A, 29.0% T, 23.8% C and 12.1% G. The nucleotide sequence data of 12 heavy-strand protein-coding genes of Apodemus draco and other 23 rodents were used for mitochondrial genome phylogenetic analyses...
August 14, 2015: Mitochondrial DNA
https://www.readbyqxmd.com/read/26273923/sequencing-and-analysis-of-complete-mitochondrial-genome-of-apodemus-draco-rodentia-arvicolinae
#8
Haixue Wei, Qiang Jia, Fengjun Li, Yongcheng Liu, Shunde Chen, Bin Yong
The genus Apodemus are the most common small rodents in fields. They are also one of the best species for biogeographic study and understanding the environmental changes. In this study, the complete mitochondrial genome sequence of Apodemus draco is determined. The mitogenome is 16 220 bp in length and contains 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes and a control region, with a base composition of 35.1% A, 29.0% T, 23.8% C and 12.1% G. The nucleotide sequence data of 12 heavy-strand protein-coding genes of Apodemus draco and other 23 rodents were used for mitochondrial genome phylogenetic analyses...
August 14, 2015: Mitochondrial DNA
https://www.readbyqxmd.com/read/26249477/revision-of-the-afrotropical-species-of-norbanus-walker-hymenoptera-pteromalidae
#9
Mircea-Dan Mitroiu
The Afrotropical species of Norbanus Walker, 1843 (Hymenoptera: Pteromalidae) are revised. Four previously described Afrotropical species are recognized as valid and redescribed: N. africanus Subba Rao, 1973, N. garouae (Risbec, 1956) comb. nov. (transferred from Bruchobius Ashmead), N. kitegaensis (Risbec, 1957) and N. seyrigi (Risbec, 1952) comb. nov. (from Habrocytus Thomson). In addition, the Mediterranean species N. tenuicornis Bouček, 1970 is recorded for the first time from the Afrotropical region, and 21 species are described as new: N...
2015: Zootaxa
https://www.readbyqxmd.com/read/26066442/precision-mapping-of-laser-driven-magnetic-fields-and-their-evolution-in-high-energy-density-plasmas
#10
L Gao, P M Nilson, I V Igumenshchev, M G Haines, D H Froula, R Betti, D D Meyerhofer
The magnetic fields generated at the surface of a laser-irradiated planar solid target are mapped using ultrafast proton radiography. Thick (50  μm) plastic foils are irradiated with 4-kJ, 2.5-ns laser pulses focused to an intensity of 4×10^{14}  W/cm^{2}. The data show magnetic fields concentrated at the edge of the laser-focal region, well within the expanding coronal plasma. The magnetic-field spatial distribution is tracked and shows good agreement with 2D resistive magnetohydrodynamic simulations using the code draco when the Biermann battery source, fluid and Nernst advection, resistive magnetic diffusion, and Righi-Leduc heat flow are included...
May 29, 2015: Physical Review Letters
https://www.readbyqxmd.com/read/25772577/draco-inhibits-porcine-reproductive-and-respiratory-syndrome-virus-replication-in-vitro
#11
Chunhe Guo, Luxi Chen, Delin Mo, Yaosheng Chen, Xiaohong Liu
Porcine reproductive and respiratory syndrome virus (PRRSV) continues to cause substantial economic losses to the pig industry worldwide. Current vaccination strategies and antiviral drugs against PRRSV are still inadequate. Therefore, there is an urgent need for new antiviral strategies to control PRRSV. Double-stranded RNA (dsRNA) Activated Caspase Oligomerizer (DRACO) is a synthetic construct consisting of a dsRNA detection domain, an apoptosis induction domain, and a transduction tag. It has been shown to have broad-spectrum antiviral activity, but there have been no reports regarding its effect on PRRSV...
May 2015: Archives of Virology
https://www.readbyqxmd.com/read/25693860/characterisation-of-the-metabolites-of-an-antibacterial-endophyte-botryodiplodia-theobromae-pat-of-dracaena-draco-l-by-lc-ms-ms
#12
Ahmed M Zaher, Ahmad M Moharram, Richard Davis, Peter Panizzi, Makboul A Makboul, Angela I Calderón
Botryodiplodia theobromae Pat. belongs to the endophytic fungi that live within the tissues of medicinal plants and produce bioactive natural products. The endophyte was isolated from the leaves of Dracaena draco L. The LC-MS-based metabolite fingerprinting of the ethyl acetate extract of B. theobromae with antibacterial activity led to the identification of 13 metabolites pertaining to various classes: dipeptides (maculosin and L,L-cyclo(leucylprolyl), alkaloid (norharman), coumarin and isocoumarins (bergapten, meranzin and monocerin), sesquiterpene (dihydrocumambrin A), aldehyde (formyl indanone), fatty alcohol (halaminol A) and fatty acid amide (palmitoleamide, palmitamide, capsi-amide and oleamide)...
2015: Natural Product Research
https://www.readbyqxmd.com/read/25647433/topical-oxygen-wound-therapies-for-chronic-wounds-a-review
#13
REVIEW
J Dissemond, K Kröger, M Storck, A Risse, P Engels
UNLABELLED: Chronic wounds are an increasing problem in our ageing population and can arise in many different ways. Over the past decades it has become evident that sufficient oxygen supply is an essential factor of appropriate wound healing. Sustained oxygen deficit has a detrimental impact on wound healing, especially for patients with chronic wounds. This has been proven for wounds associated with peripheral arterial occlusive disease (PAOD) and diabetic foot ulcers (particularly in combination with PAOD)...
February 2015: Journal of Wound Care
https://www.readbyqxmd.com/read/25601087/three-new-flavans-in-dragon-s-blood-from-daemonorops-draco
#14
Qian Hao, Yoshinori Saito, Yosuke Matsuo, Hai-Zhou Li, Tanaka Takashi
Three new flavans were isolated from chloroform extracts of dragon's blood from Daemonorops draco, together with eight known compounds. The structures of the new flavans were determined by 1D and 2D NMR spectroscopic analysis. These compounds are the first examples of 2-methoxyflavans from D. draco and regarded as derivatives of biogenetic intermediates from flavans to chalcones, which are characteristic of the dragon's blood.
2015: Natural Product Research
https://www.readbyqxmd.com/read/25540157/marked-colour-divergence-in-the-gliding-membranes-of-a-tropical-lizard-mirrors-population-differences-in-the-colour-of-falling-leaves
#15
D A Klomp, D Stuart-Fox, I Das, T J Ord
Populations of the Bornean gliding lizard, Draco cornutus, differ markedly in the colour of their gliding membranes. They also differ in local vegetation type (mangrove forest versus lowland rainforest) and consequently, the colour of falling leaves (red and brown/black in mangrove versus green, brown and black in rainforest). We show that the gliding membranes of these lizards closely match the colours of freshly fallen leaves in the local habitat as they appear to the visual system of birds (their probable predators)...
December 2014: Biology Letters
https://www.readbyqxmd.com/read/25470480/sanguis-draconis-daemonorops-draco-a-case-report-of-treating-a-chronic-pressure-ulcer-with-tunneling
#16
Shu Ji, Guizhen Zhang, Yafang Hua, Xueqin Jin
Pressure ulcers are a frequently encountered difficulty in clinical nursing care. In cases of pressure ulcers, continued pressure on soft tissue leads to pathological processes in affected tissues that include ischemia and hypoxia, nutritional and metabolic disorders, and degeneration and necrosis. Pressure ulcers are a common clinical complication. In February 2013, our department admitted a patient with Parkinson's disease who suffered from a chronic pressure ulcer with tunneling. This patient was given an integrative therapy treatment protocol that consisted of external applications of a phytomedicine called sanguis draconis, combined with a series of conventional treatments, including local oxygen therapy, custom-built vacuum aspiration, and anti-infection therapies...
January 2015: Holistic Nursing Practice
https://www.readbyqxmd.com/read/25211102/relationship-between-spatial-distribution-of-chaetognaths-and-hydrographic-conditions-around-seamounts-and-islands-of-the-tropical-southwestern-atlantic
#17
Christiane S de Souza, Joana A G Luz, Paulo O Mafalda
Relationship between spatial distribution of chaetognaths and hydrographic conditions around seamounts and islands off Northeastern Brazil were analyzed from 133 oceanographic stations during the months of January - April of 1997 and April - July of 1998. Oblique zooplankton tows, using 50 cm diameter Bongo nets with 500µm mesh with a flowmeter to determine the filtered volume, were carried out to a maximum of 200m depth. The Superficial Equatorial Water, which had a salinity > 36 PSU and temperature > 20°C, occupied the top 80 to 200m depth...
September 2014: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/25197219/the-ant-genus-carebara-westwood-hymenoptera-formicidae-synonymisation-of-pheidologeton-mayr-under-carebara-establishment-and-revision-of-the-c-polita-species-group
#18
Georg Fischer, Frank Azorsa, Brian L Fisher
In this paper the genus Pheidologeton Mayr, 1862 is synonymized under Carebara Westwood, 1840 and the Carebara polita group is established and revised. This species group currently includes six species from the Afrotropical region (C. madibai, C. nicotianae, C. perpusilla, C. polita, C. silvestrii, and C. villiersi) and two species from the Neotropical region (C. brevipilosa and C. urichi). The polita group clearly links Carebara and Pheidologeton, and, due to a lack of autapomorphic characters for the latter, a separation of the two genera is no longer justified...
2014: ZooKeys
https://www.readbyqxmd.com/read/25112769/four-new-troglobiotic-species-of-the-genus-megalothorax-willem-1900-collembola-neelipleona-from-the-carpathian-mountains-slovakia-romania
#19
Vladimír Papáč, Lubomír Kováč
Four new species of Megalothorax Willem, 1900 are described and illustrated: M. tatrensis sp. nov., M. carpaticus sp. nov., M. hipmani sp. nov. from caves in Slovakia and M. draco sp. nov. from the Drǎcoaia Cave in western Romania. The species represent troglobiotic forms exhibiting different level of troglomorphy involving such features as larger body, elongated foot complex, antennae, mucro and body chaetae. The most pronounced troglomorphy is observed in M. hipmani sp. nov. and M. draco sp. nov. Species descriptions are completed with comparative tables of chaetotaxy of antennae and legs...
2013: Zootaxa
https://www.readbyqxmd.com/read/25054889/photochromism-of-the-natural-dye-7-4-dihydroxy-5-methoxyflavylium-dracoflavylium-in-the-presence-of-2-hydroxypropyl-%C3%AE-cyclodextrin
#20
Tânia Lopes-Costa, Nuno Basílio, José M Pedrosa, Fernando Pina
A photochromic system based on dracoflavylium, a natural pigment extracted from Dragon's blood, a resin appearing in the injury parts of the tree Dracaena draco, is studied in water. The photochromism arises from the irradiation of the trans-chalcone, giving a mixture of flavylium cation/quinoidal base as a photoproduct via cis-chalcone and hemiketal. The performance of the photochromic system can be improved in the presence of (2-hydroxypropyl)-β-cyclodextrin. A mathematical model to account for the details of the kinetics and thermodynamics of the system was deduced...
October 2014: Photochemical & Photobiological Sciences
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