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https://www.readbyqxmd.com/read/28213963/ultrastructure-of-compatible-and-incompatible-interactions-in-phloem-sieve-elements-during-the-stylet-penetration-by-cotton-aphids-in-melon
#1
Elisa Garzo, Mercedes Fernández-Pascual, Cesar Morcillo, Alberto Fereres, M Luisa Gómez-Guillamón, W Fred Tjallingii
Resistance of the melon line TGR-1551 to the aphid Aphis gossypii is based on preventing aphids from ingesting phloem sap. In electrical penetration graphs (EPGs), this resistance has been characterized with A. gossypii showing unusually long phloem salivation periods (waveform E1) mostly followed by pathway activities (waveform C) or if followed by phloem ingestion (waveform E2), ingestion was not sustained for more than 10 minutes. Stylectomy with aphids on susceptible and resistant plants was performed during EPG recording while the stylet tips were phloem inserted...
February 18, 2017: Insect Science
https://www.readbyqxmd.com/read/28207549/stylet-angulation-for-routine-endotracheal-intubation-with-mcgrath-videolaryngoscope
#2
Jiyoung Lee, Jong Yeop Kim, Se Yoon Kang, Hyun Jeong Kwak, Dongchul Lee, Sook Young Lee
BACKGROUND: The McGrath videolaryngoscope (VL) provides excellent laryngoscopic views, but directing an endotracheal tube can be difficult, and thus the routine use of a stylet is recommended. The goal of this study is to determine the appropriate angle (60° vs 90°) of the stylet when using the McGrath VL by comparing the time to intubation (TTI). METHODS: One hundred and forty patients aged 19 to 70 years (American Society of Anesthesiologists classification I or II) who required tracheal intubation for elective surgery were randomly allocated to 1 of 2 groups, at the 60° angle (n = 70) or the 90° angle (n = 70)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28187538/first-record-of-the-root-knot-nematode-i-meloidogyne-i-i-minor-i-in-new-zealand-with-description-sequencing-information-and-key-to-known-species-of-i-meloidogyne-i-in-new-zealand
#3
Zeng Qi Zhao, Wellcome Ho, Ruth Griffin, Michael Surrey, Robert Taylor, Lee T Aalders, Nigel L Bell, Yu Mei Xu, Brett J R Alexander
Meloidogyne minor Karssen et al. 2004 was collected from perennial ryegrass (Lolium perenne L.) growing in a sports ground in Christchurch, New Zealand. This is a new record for M. minor, the first report of this nematode occurring in New Zealand, and the second report from the southern hemisphere (after Chile). In general, the New Zealand isolate of M. minor corresponds well to the descriptions of M. minor given by Karssen et al. (2004). The New Zealand isolate is characterized by having a female with dorsally curved stylet, 13-14 μm long, with transversely ovoid knobs slightly sloping backwards from shaft; rounded perineal pattern; and male with stylet 16-19 μm long, large transversely ovoid knobs sloping slightly backwards from shaft; head region not set off, labial disc elevated, lateral lips prominent; and second stage juvenile 370-390 μm long, with hemizonid posterior but adjacent to excretory pore; tail 53-63 μm long; and a distinct hyaline tail terminus 14-18 μm long...
February 9, 2017: Zootaxa
https://www.readbyqxmd.com/read/28183114/morphological-characterisation-of-a-new-and-two-known-species-of-i-ditylenchus-i-filipjev-1936-nematoda-anguinidae-from-iran
#4
Hossein Mirbabaei Karani, Ali Eskandari, Reza Ghaderi, Ramin Heydari, Esmaeil Miraeez
Ditylenchus sturhani sp. n. from the rhizosphere of grasses in East Azarbaijan province, Northwestern Iran, is described and illustrated. The new species is characterised by a straight to slightly arcuate body 656-865 µm in length, presence of four incisures in each lateral field, slender stylet 10-12 µm in length, pharyngeal basal bulb offset or slightly overlapping the intestine, post-uterine sac 1.0-1.9 vulval body diameter long and conical tail with finely rounded terminus. Differences with closely related species including D...
January 9, 2017: Zootaxa
https://www.readbyqxmd.com/read/28179179/endoscopic-assisted-burr-hole-reservoir-and-ventricle-catheter-placement
#5
Sebastian Antes, Christoph A Tschan, Michael Heckelmann, Mohamed Salah, Sebastian Senger, Stefan Linsler, Joachim Oertel
BACKGROUND: Accurate positioning of a ventricle catheter is of utmost importance. Various techniques to ensure optimal positioning have been described. Commonly, after catheter placement, additional manipulation is necessary to connect a burr hole reservoir or shunt components. This can lead to accidental catheter dislocation and should be avoided. Here, the authors present a new technique that allows direct endoscopic insertion of a burr hole reservoir with an already mounted ventricle catheter...
February 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28158306/identification-of-cyst-nematode-b-type-cle-peptides-and-modulation-of-the-vascular-stem-cell-pathway-for-feeding-cell-formation
#6
Xiaoli Guo, Jianying Wang, Michael Gardner, Hiroo Fukuda, Yuki Kondo, J Peter Etchells, Xiaohong Wang, Melissa Goellner Mitchum
Stem cell pools in the SAM (shoot apical meristem), RAM (root apical meristem) and vascular procambium/cambium are regulated by CLE-receptor kinase-WOX signaling modules. Previous data showed that cyst nematode CLE-like effector proteins delivered into host cells through a stylet, act as ligand mimics of plant A-type CLE peptides and are pivotal for successful parasitism. Here we report the identification of a new class of CLE peptides from cyst nematodes with functional similarity to the B-type CLE peptide TDIF (tracheary element differentiation inhibitory factor) encoded by the CLE41 and CLE44 genes in Arabidopsis...
February 3, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28156208/image-guided-intrathecal-baclofen-pump-catheter-implantation-a-technical-note-and-case-series
#7
Shenandoah Robinson, Faith C Robertson, Hormuzdiyar H Dasenbrock, Cormac P O'Brien, Charles Berde, Horacio Padua
OBJECTIVE Medically refractory spasticity and dystonia are often alleviated with intrathecal baclofen (ITB) administration through an indwelling catheter inserted in the lumbar spine. In patients with cerebral palsy, however, there is a high incidence of concomitant neuromuscular scoliosis. ITB placement may be technically challenging in those who have severe spinal deformity or who have undergone prior instrumented thoracolumbar fusion. Although prior reports have described drilling through the lumbar fusion mass with a high-speed bur, as well as IT catheter implantation at the foramen magnum or cervical spine, these approaches have notable limitations...
February 3, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28154434/new-cyst-nematode-heterodera-sojae-n-sp-nematoda-heteroderidae-from-soybean-in-korea
#8
Heonil Kang, Geun Eun, Jihye Ha, Yongchul Kim, Namsook Park, Donggeun Kim, Insoo Choi
A new soybean cyst nematode Heterodera sojae n. sp. was found from the roots of soybean plants in Korea. Cysts of H. sojae n. sp. appeared more round, shining, and darker than that of H. glycines. Morphologically, H. sojae n. sp. differed from H. glycines by fenestra length (23.5-54.2 µm vs. 30-70 µm), vulval silt length (9.0-24.4 µm vs. 43-60 µm), tail length of J2 (54.3-74.8 µm vs. 40-61 µm), and hyaline part of J2 (32.6-46.3 µm vs. 20-30 µm). It is distinguished from H. elachista by larger cyst (513...
December 2016: Journal of Nematology
https://www.readbyqxmd.com/read/28144174/an-early-record-of-meloidogyne-fallax-from-ireland
#9
Olivera Topalović, John F Moore, Toon Janssen, Wim Bert, Gerrit Karssen
Root-knot nematodes, Meloidogyne spp., cause huge economic losses worldwide. Currently, three Meloidogyne spp. are present on the quarantine A2 list of EPPO, Meloidogyne chitwoodi, Meloidogyne fallax and Meloidogyne enterolobii. As a quarantine organism, Meloidogyne fallax has been detected in England and Northern Ireland on sport turf in 2011, and in England on leek in 2013. However, its presence in Ireland has probably been overlooked since 1965, when Mr. John F. Moore and Dr. Mary T. Franklin had detected a new Meloidogyne species for that time...
2017: ZooKeys
https://www.readbyqxmd.com/read/28139512/shikani-optical-stylet-versus-macintosh-laryngoscope-for-intubation-in-patients-undergoing-surgery-for-cervical-spondylosis-a-randomized-controlled-trial
#10
Mao Xu, Xiao-Xi Li, Xiang-Yang Guo, Jun Wang
BACKGROUND: Airway management is critical in patients with cervical spondylosis, a population with a high incidence of difficult airway. Intubation with Shikani Optical Stylet (SOS) has become increasingly popular in difficult airway. We compared the effects of intubation with SOS versus Macintosh laryngoscope (MLS) in patients undergoing surgery for cervical spondylosis. METHODS: A total of 270 patients scheduled for elective surgery for cervical spondylosis of spinal cord and nerve root type from August 2012 to January 2016 were enrolled and randomly allocated to the MLS or SOS group by random numbers...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28139309/comparison-of-macintosh-and-intubrite-laryngoscopes-for-intubation-performed-by-novice-physicians-in-a-difficult-airway-scenario
#11
Lukasz Szarpak, Jacek Smereka, Jerzy R Ladny
INTRODUCTION: In the difficult airway, the intubation skills are critically important. In selected cases, particularly in airway edema, laryngeal or tongue edema, endotracheal intubation can turn out very difficult, and repeated attempts may even worsen the airway edema, causing trauma and bleeding, and finally leading to complete airway obstruction and inability to ventilate the patient. AIM OF THE STUDY: The aim of the study was to compare the efficacy of endotracheal intubation performed by novice physicians using a standard Macintosh laryngoscope and an Intubrite videolaryngoscope...
January 5, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28130146/first-finding-of-a-dual-meaning-x-wave-for-phloem-and-xylem-fluid-ingestion-characterization-of-scaphoideus-titanus-hemiptera-cicadellidae-epg-waveforms
#12
Julien Chuche, Elaine A Backus, Denis Thiery, Nicolas Sauvion
The leafhopper Scaphoideus titanus (Hemiptera: Cicadomorpha: Cicadellidae), an invasive deltocephaline species introduced into Europe from North America, is the vector of the most important phytoplasma disease in European viticulture, flavescence dorée. In this first electropenetrography (EPG) study of S. titanus, we characterized its feeding waveforms and defined their biological meanings. Four typical waveform phases (pathway, X wave, sustained ingestion, and interruption) and four families within those phases (A, B, C, and N) were characterized using DC EPG technology...
January 24, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28126846/a-salivary-endo-%C3%AE-1-4-glucanase-acts-as-an-effector-that-enables-the-brown-planthopper-to-feed-on-rice
#13
Rui Ji, Wenfeng Ye, Hongdan Chen, Jiamei Zeng, Heng Li, Haixin Yu, Jiancai Li, Yonggen Lou
The rice brown planthopper (BPH) Nilaparvata lugens (Stål) is one of the most destructive insect pests on rice in Asia. After landing on plants, BPH rapidly accesses plant phloem and sucks the phloem sap through unknown mechanisms. We discovered a salivary endo-β-1,4-glucanase (NlEG1) which has endoglucanase activity with a maximal activity at pH 6 at 37{degree sign}C and is secreted into rice plants by BPH. NlEG1 is highly expressed in the salivary glands and midgut. Silencing NlEG1 decreases the capacity of BPH to reach the phloem and reduces its food intake, mass, survival, and fecundity on rice plants...
January 26, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28120016/-in-situ-broken-27-gauge-spinal-needle-in-a-repeated-caesarean-delivery-case-report-and-literature-review
#14
A D Rieg, A Dortgolz, S Macko, R Rossaint, G Schälte
We report the rare case of an in situ fracture of a spinal needle within the setting of repeated caesarean delivery in a 28-year-old pregnant woman and discuss the responsible underlying factors. In particular, a wrong technique, limited experience, difficulties to identify the anatomical landmarks, as well as the use of spinal needles smaller than 25 G might promote such a complication. In order to ensure the stability of the spinal needle and to avoid an in situ fracture, the spinal needle should be never moved without the stylet...
January 24, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28101617/a-new-ct-guided-modified-trocar-technique-for-drainage-of-difficult-locations-abscesses
#15
Chiang J Tyng, Maurício K Amoedo, Yves Bohrer, Almir G V Bitencourt, Paula N V Barbosa, Maria Fernanda A Almeida, Charles E Zurstrassen, Felipe J F Coimbra, Wilson L da Costa, Rubens Chojniak
PURPOSE: Computed tomography (CT) is commonly used to guide drainage of deep-seated abdominal fluid collections. However, in some cases, these collections seem to be inaccessible due to surrounding organs or their being in difficult locations. The aim of this study is to describe a modified Trocar technique to drain collections in difficult locations, especially those in the subphrenic space, without passing through intervening organs. MATERIALS AND METHODS: This retrospective case series study describes seven inpatients who underwent CT-guided drainage using a modified Trocar technique for abscesses that are difficult to access percutaneously...
January 18, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28098179/a-salivary-ef-hand-calcium-binding-protein-of-the-brown-planthopper-nilaparvata-lugens-functions-as-an-effector-for-defense-responses-in-rice
#16
Wenfeng Ye, Haixin Yu, Yukun Jian, Jiamei Zeng, Rui Ji, Hongdan Chen, Yonggen Lou
The brown planthopper (BPH), Nilaparvata lugens (Stål) (Hemiptera: Delphacidae), a major pest of rice in Asia, is able to successfully puncture sieve tubes in rice with its piercing stylet and then to ingest phloem sap. How BPH manages to continuously feed on rice remains unclear. Here, we cloned the gene NlSEF1, which is highly expressed in the salivary glands of BPH. The NlSEF1 protein has EF-hand Ca(2+)-binding activity and can be secreted into rice plants when BPH feed. Infestation of rice by BPH nymphs whose NlSEF1 was knocked down elicited higher levels of Ca(2+) and H2O2 but not jasmonic acid, jasmonoyl-isoleucine (JA-Ile) and SA in rice than did infestation by control nymphs; Consistently, wounding plus the recombination protein NlSEF1 suppressed the production of H2O2 in rice...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28096586/comparison-of-intubating-laryngeal-mask-airway-and-fiberoptic-bronchoscopy-for-endotracheal-intubation-in-patients-undergoing-cervical-discectomy
#17
Kolli S Chalam, Jyothi Gupta
BACKGROUND AND AIMS: Direct laryngoscopy is hazardous in patients with cervical posterior intervertebral disc prolapse (PIVD) as it may worsen the existing cord compression. To achieve smooth intubation, many adjuncts such as fiberoptic bronchoscope (FOB), video laryngoscopes, lighted stylets, and intubating laryngeal mask airways (ILMAs) are available. However, there is a paucity of literature comparing ILMA with fiberoptic intubation in patients with PIVD. Hence, this study was designed to compare the effectiveness of ILMA technique with FOB to accomplish endotracheal intubation in patients undergoing cervical discectomy...
October 2016: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28089573/what-is-a-difficult-transfer-analysis-of-7-714-embryo-transfers-the-impact-of-maneuvers-during-embryo-transfers-on-pregnancy-rate-and-a-proposal-of-objective-assessment
#18
Alejandro Kava-Braverman, Francisca Martínez, Ignacio Rodríguez, Manuel Álvarez, Pedro N Barri, Buenaventura Coroleu
OBJECTIVE: To establish the relationship between the degree of difficulty of ET and pregnancy rate (PR), with a view to proposing an algorithm for the objective assessment of ET. DESIGN: Retrospective, observational study. SETTING: In vitro fertilization unit. PATIENT(S): Women undergoing assisted reproductive technology (ART) with ET after IVF/intracytoplasmic sperm injection, in whom fresh embryo transfer or frozen-thawed embryo transfer was performed...
January 12, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28077087/embryogenesis-in-the-parasitic-nematode-heterodera-glycines-is-independent-of-host-derived-hatching-stimulation
#19
Sita Thapa, Jayna A Patel, Ursula Reuter-Carlson, Nathan E Schroeder
BACKGROUND: Many parasites regulate their development to synchronize their life cycle with a compatible host. The parasitic nematode Heterodera glycines displays incomplete host-mediated hatching behavior wherein some H. glycines individuals hatch only in the presence of a host-derived cue while others hatch in water alone. Furthermore, H. glycines shows variable hatching behavior based on oviposition location. The mechanisms regulating this hatching variability are unknown. In this study, we established a detailed timeline of the H...
January 11, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/28073976/effects-of-carriers-emulsifiers-and-biopesticides-for-direct-silk-treatments-on-caterpillar-feeding-damage-and-ear-development-in-sweet-corn
#20
P J Westgate, B B Schultz, R V Hazzard
In the northeastern United States, control of Lepidopteran pests of sweet corn, particularly corn earworm [Helicoverpa zea (Boddie)], is difficult using organic methods. The direct application of corn oil and Bacillus thuringiensis (Bt) to corn silk has been shown to reduce ear damage from corn earworm in past studies; these studies sought to optimize this method by evaluating additional carrier and biopesticide mixtures that comply with the United States Federal Insecticide, Fungicide, and Rodenticide Act and National Organic Standards...
January 10, 2017: Journal of Economic Entomology
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