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https://www.readbyqxmd.com/read/29778014/expression-of-grape-acs1-in-tomato-decreases-ethylene-and-alters-the-balance-between-auxin-and-ethylene-during-shoot-and-root-formation
#1
Xia Ye, Mengmeng Fu, Yu Liu, Dongliang An, Xianbo Zheng, Bin Tan, Jidong Li, Jun Cheng, Wei Wang, Jiancan Feng
Ethylene plays an important role in the grape rachis, where its production can be 10 times higher than in the berry. VvACS1 is the only rachis-specific ACC synthase (ACS) gene, and its expression is coincident with ethylene production in the rachis of Vitis vinifera 'Thompson seedless'. VvACS1 was cloned and ectopically expressed in tomato (Solanum lycopersicum 'Moneymaker'). Lateral buds were increased in two- or four-week-old 35s∷VvACS1 transgenic tomato plants after transplanting. Compared with wild-type (WT) plants, the transgenic tomato plants showed higher expression of the VvACS1 gene in the flowers, leaves, rachis, and fruits...
May 4, 2018: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29774547/petunia-as-model-for-elucidating-adventitious-root-formation-and-mycorrhizal-symbiosis-at-the-nexus-of-physiology-genetics-microbiology-and-horticulture
#2
Uwe Druege, Philipp Franken
Adventitious root formation in cuttings and establishment of arbuscular mycorrhizal symbiosis reflect the enormous plasticity of plants and are key factors in the efficient and sustainable clonal propagation and production of ornamental crops. Based on the high importance of Petunia hybrida for the European and US annual bedding plant markets and its suitability as a model for basic plant sciences, petunia has been established as an experimental system for elucidating the molecular and physiological processes underlying adventitious root formation and mycorrhizal symbiosis...
May 17, 2018: Physiologia Plantarum
https://www.readbyqxmd.com/read/29772319/baroreceptor-activation-therapy-two-decades-after-vascular-surgery-on-both-carotid-arteries-in-a-patient-with-resistant-hypertension-first-case-report-in-the-literature
#3
Christoph H Blanke, Frank Willeke, Michael Buerke, Ibrahim A Darwich
Patients with previous surgery of the carotids or significant stenosis are not included in the study populations of baroreceptor activation therapy. In this case report about a 78-year-old woman with implantation of a baroreceptor activation therapy system two decades after bilateral thrombendarterectomy, control of hypertensive dysregulation could be observed even 20 months after implantation. Successful modulation of the baroreceptors requires intact adventitial tissue near the carotid sinus. In our case with previous longitudinal incision and patch angioplasty, the nerval innervation had been preserved...
May 14, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29766007/autoimmunity-in-the-abdominal-aortic-aneurysm-and-its-association-with-smoking
#4
M David Tilson
Smoking increases the risk of abdominal aortic aneurysm (AAA) in both humans and mice, although the underlying mechanisms are not completely understood. An adventitial aortic antigen, AAAP-40, has been partially sequenced. It has motifs with similarities to all three fibrinogen chains and appears to be connected in evolution to a large family of proteins called fibrinogen-related proteins. Fibrinogen may undergo non-enzymatic nitration, which may result from exposure to nitric oxide in cigarette smoke. Nitration of proteins renders them more immunogenic...
December 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/29757704/dynamics-of-candidatus-liberibacter-asiaticus-colonization-of-new-growth-of-citrus
#5
Mark E Hilf, Weiqi Luo
'Candidatus Liberibacter asiaticus' is a phloem-colonizing intracellular bacterial pathogen of citrus associated with the disease huanglongbing. A study of patterns of colonization and bacterial population growth in new growth of different citrus types was conducted by pruning infected citron, sweet orange, sour orange, mandarin, citrange and Citrus macrophylla trees to force the growth of axillary and adventitious shoots. The first three leaves on newly emerged shoots were collected at 30, 60 and 90 days to assess colonization and population growth of 'Ca...
May 14, 2018: Phytopathology
https://www.readbyqxmd.com/read/29755501/enhanced-conjugation-of-auxin-by-gh3-enzymes-leads-to-poor-adventitious-rooting-in-carnation-stem-cuttings
#6
Antonio Cano, Ana Belén Sánchez-García, Alfonso Albacete, Rebeca González-Bayón, María Salud Justamante, Sergio Ibáñez, Manuel Acosta, José Manuel Pérez-Pérez
Commercial carnation ( Dianthus caryophyllus ) cultivars are vegetatively propagated from axillary stem cuttings through adventitious rooting; a process which is affected by complex interactions between nutrient and hormone levels and is strongly genotype-dependent. To deepen our understanding of the regulatory events controlling this process, we performed a comparative study of adventitious root (AR) formation in two carnation cultivars with contrasting rooting performance, "2101-02 MFR" and "2003 R 8", as well as in the reference cultivar "Master"...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29755204/cryopreservation-studies-of-an-artificial-co-culture-between-the-cobalamin-requiring-green-alga-lobomonas-rostrata-and-the-bacterium-mesorhizobium-loti
#7
Christian J A Ridley, John G Day, Alison G Smith
Algal-bacterial co-cultures, rather than cultures of algae alone, are regarded as having the potential to enhance productivity and stability in industrial algal cultivation. As with other inocula in biotechnology, to avoid loss of production strains, it is important to develop preservation methods for the long-term storage of these cultures, and one of the most commonly used approaches is cryopreservation. However, whilst there are many reports of cryopreserved xenic algal cultures, little work has been reported on the intentional preservation of both algae and beneficial bacteria in xenic cultures...
2018: Journal of Applied Phycology
https://www.readbyqxmd.com/read/29744274/genetic-linkage-map-and-qtl-identification-for-adventitious-rooting-traits-in-red-gum-eucalypts
#8
Murugan Sumathi, Vijaya Kumar Waman Bachpai, A Mayavel, Modhumita Ghosh Dasgupta, Binai Nagarajan, D Rajasugunasekar, Veerasamy Sivakumar, Ramasamy Yasodha
The eucalypt species, Eucalyptus tereticornis and Eucalyptus camaldulensis , show tolerance to drought and salinity conditions, respectively, and are widely cultivated in arid and semiarid regions of tropical countries. In this study, genetic linkage map was developed for interspecific cross E. tereticornis  ×  E. camaldulensis using pseudo-testcross strategy with simple sequence repeats (SSRs), intersimple sequence repeats (ISSRs), and sequence-related amplified polymorphism (SRAP) markers. The consensus genetic map comprised totally 283 markers with 84 SSRs, 94 ISSRs, and 105 SRAP markers on 11 linkage groups spanning 1163...
May 2018: 3 Biotech
https://www.readbyqxmd.com/read/29732350/a-new-stethoscope-design-with-unique-characteristics-and-development-in-medical-device
#9
M Ghahramanifar, M Haghani, A Ghadimi Moghadam, A K Ghadimi Moghadam
As regards the significant role of stethoscopes in the diagnosis of congenital and adventitious heart diseases and prevention of irreparable complications of these diseases, the quality of hearing sound of these stethoscopes by a physician has a significant impact on the disease diagnosis. This device plays an important role in the early diagnosis of congenital heart and respiratory diseases and provides this feasibility since birth. Also, the importance of this device performance in the diagnosis of heart, cardiovascular and respiratory diseases at different age periods is not a secret...
March 2018: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/29730377/adventitial-drug-delivery-of-dexamethasone-to-improve-primary-patency-in-the-treatment-of-superficial-femoral-and-popliteal-artery-disease-12-month-results-from-the-dance-clinical-trial
#10
Mahmood K Razavi, Dennis Donohoe, Ralph B D'Agostino, Michael R Jaff, George Adams
OBJECTIVES: This study was designed to evaluate outcomes of adventitial dexamethasone delivery adjunctive to standard endovascular revascularization in femoropopliteal peripheral artery disease. BACKGROUND: Drug-coated balloons and drug-eluting stents improve patency of endovascular interventions with passive diffusion of antiproliferative drugs. Adventitial dexamethasone delivery targets the initial triggers of the inflammatory reaction to injury, thus potentially providing a potent antirestenotic strategy...
April 27, 2018: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29726566/inchworm-bipedal-nanowalker
#11
Y H Chiang, S L Tsai, S R Tee, O L Nair, I Y Loh, M H Liu, Z S Wang
Nanowalkers take either inchworm (IW) or hand-over-hand (HOH) gait. The IW nanowalkers are advantageous over HOH ones in force generation, processivity and high-density integration, though both gaits occur in intracellular nanowalkers from biology. Artificial IW nanowalkers have been realized or proposed, but all rely on different 'head' and 'tail' to gain an adventitious direction. Here we report an inherently unidirectional IW nanowalker that is a biped with two identical legs (i.e., indistinguishable 'head' and 'tail')...
May 4, 2018: Nanoscale
https://www.readbyqxmd.com/read/29724722/coronary-artery-remodeling-and-fibrosis-with-continuous-flow-left-ventricular-assist-device-support
#12
Amrut V Ambardekar, Mary C M Weiser-Evans, Marcella Li, Suneet N Purohit, Muhammad Aftab, T Brett Reece, Karen S Moulton
BACKGROUND: Coronary artery fluid dynamics may be altered because of the nonphysiological flow seen in continuous-flow left ventricular assist devices (CF-LVADs). Our aim was to study the structure and composition of coronary vessels after CF-LVAD. METHODS AND RESULTS: Coronary arteries were collected from patients with heart failure (HF) at the time of transplantation, of whom 15 were supported with a CF-LVAD before transplant (HF+LVAD group) and 9 were not (HF non-LVAD group)...
May 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29724394/enhancing-our-understanding-of-computerised-adventitious-respiratory-sounds-in-different-copd-phases-and-healthy-people
#13
Ana Oliveira, João Rodrigues, Alda Marques
BACKGROUND: Timely diagnosis of acute exacerbations of COPD (AECOPD) is challenging as it depends on patients' reports. AECOPD are characterised by increased airway obstruction, mucus and air trapping, which results in changes in lung acoustics. Thus, adventitious respiratory sounds (ARS) may be useful to detect/monitor AECOPD. OBJECTIVE: To evaluate computerised ARS changes during AECOPD. METHODS: 25 non-hospitalised patients with AECOPD (16♂, 70 [62...
May 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29724149/mesenchymal-stem-cell-sheets-exert-anti-stenotic-effects-in-a-rat-arterial-injury-model
#14
Jun Homma, Hidekazu Sekine, Katsuhisa Matsuura, Eiji Kobayashi, Tatsuya Shimizu
Restenosis after catheter or surgical intervention substantially affects the prognosis of arterial occlusive disease. Mesenchymal stem cells (MSCs) may have anti-stenotic effects on injured arteries. MSC transplantation from the adventitial side of an artery is safer than endovascular transplantation but has not been extensively examined. In this study, a rat model of femoral artery injury was used to compare the anti-stenotic effects of transplanted cell sheets and transplanted cell suspensions. Rat adipose-derived stem cells (ASCs) were used as the source of MSCs...
May 4, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29720823/-in-vitro-induction-and-generation-of-tetraploid-plants-of-sophora-tonkinensis-gapnep
#15
Kun Hua Wei, Jian Ping Xu, Lin Xuan Li, Jin Yuan Cai, Jian Hua Miao, Min Hui Li
Background: Sophora tonkinensis Gapnep. is an important medical plant in China. Early researches of S. tonkinensis were focused on rapid propagation and quality analysis of in vitro tissue culture plantlet, and still no research focuses on the plant breeding of and there were no excellent varieties for artificial cultivation of S. tonkinensis . Objective: To set up a method to generate and select the best varieties of S. tonkinensis by polyploid breeding after induction by colchicine treatment...
April 2018: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29717745/photocatalysis-and-self-catalyzed-photobleaching-with-covalently-linked-chromophore-quencher-conjugates-built-around-bophy
#16
Dumitru Sirbu, Owen J Woodford, Andrew C Benniston, Anthony Harriman
Two Chromophore-Quencher Conjugates (CQCs) have been synthesized by covalent attachment of the anti-oxidant dibutylated-hydroxytoluene (BHT) to a pyrrole-BF2 chromophore (BOPHY) in an effort to protect the latter against photofading. In fluid solution, light-induced intramolecular charge transfer is favoured in polar solvents and helps to inhibit photo-bleaching of the chromophore. The rate of photo-fading, which scales with the number of BHT residues, is zero-order in polar solvents but shows a linear dependence on the number of absorbed photons...
May 2, 2018: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/29717676/lung-and-heart-sounds-analysis-state-of-the-art-and-future-trends
#17
Ana L Padilla-Ortiz, David Ibarra
Lung sounds, which include all sounds that are produced during the mechanism of respiration, may be classified into normal breath sounds and adventitious sounds. Normal breath sounds occur when no respiratory problems exist, whereas adventitious lung sounds (wheeze, rhonchi, crackle, etc.) are usually associated with certain pulmonary pathologies. Heart and lung sounds that are heard using a stethoscope are the result of mechanical interactions that indicate operation of cardiac and respiratory systems, respectively...
2018: Critical Reviews in Biomedical Engineering
https://www.readbyqxmd.com/read/29717315/rippling-of-graphitic-surfaces-a-comparison-between-few-layer-graphene-and-hopg
#18
N Haghighian, D Convertino, V Miseikis, F Bisio, A Morgante, C Coletti, M Canepa, O Cavalleri
The surface structure of Few-Layer Graphene (FLG) epitaxially grown on the C-face of SiC has been investigated by TM-AFM in ambient air and upon interaction with dilute aqueous solutions of bio-organic molecules (l-methionine and dimethyl sulfoxide, DMSO). Before interaction with molecular solutions, we observe nicely ordered, three-fold oriented rippled domains, with a 4.7 ± 0.2 nm periodicity (small periodicity, SP) and a peak-to-valley distance in the range 0.1-0.2 nm. Upon mild interaction with the molecular solution, the ripple periodicity "relaxes" to 6...
May 2, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29715714/a-report-of-two-cases-of-adventitial-cystic-disease-of-the-popliteal-artery
#19
Doo Jae Lee, Hyun Oh Park, Ha Nee Jang, Ki Nyun Kim, Jun Ho Yang, Seong Ho Moon, Joung Hun Byun, Sung Hwan Kim, Jun Young Choi, In Seok Jang, Jong Woo Kim, Chung Eun Lee
Two patients were admitted to our department because of recent aggravation of claudication in the leg, which was exacerbated by walking. They were diagnosed as having a Baker cyst or acute thrombosis in the popliteal fossa at another hospital. There was no evidence of ischemia, and the ankle brachial index was normal. Computed tomography and magnetic resonance imaging were performed, revealing a cystic mass of the popliteal artery (PA). Intraoperatively, the cystic lesion was found within the adventitia of the PA; based on the biopsy findings, both patients were diagnosed as having adventitial cystic disease of the PA...
April 30, 2018: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29709027/a-comprehensive-phylogeny-of-auxin-homeostasis-genes-involved-in-adventitious-root-formation-in-carnation-stem-cuttings
#20
Ana Belén Sánchez-García, Sergio Ibáñez, Antonio Cano, Manuel Acosta, José Manuel Pérez-Pérez
Understanding the functional basis of auxin homeostasis requires knowledge about auxin biosynthesis, auxin transport and auxin catabolism genes, which is not always directly available despite the recent whole-genome sequencing of many plant species. Through sequence homology searches and phylogenetic analyses on a selection of 11 plant species with high-quality genome annotation, we identified the putative gene homologs involved in auxin biosynthesis, auxin catabolism and auxin transport pathways in carnation (Dianthus caryophyllus L...
2018: PloS One
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