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https://www.readbyqxmd.com/read/28339478/morphological-and-morphometric-specializations-of-the-lung-of-the-andean-goose-chloephaga-melanoptera-a-lifelong-high-altitude-resident
#1
John N Maina, Kevin G McCracken, Beverly Chua, Julia M York, William K Milsom
High altitude flight in rarefied, extremely cold and hypoxic air is a very challenging activity. Only a few species of birds can achieve it. Hitherto, the structure of the lungs of such birds has not been studied. This is because of the rarity of such species and the challenges of preparing well-fixed lung tissue. Here, it was posited that in addition to the now proven physiological adaptations, high altitude flying birds will also have acquired pulmonary structural adaptations that enable them to obtain the large amounts of oxygen (O2) needed for flight at high elevation, an environment where O2 levels are very low...
2017: PloS One
https://www.readbyqxmd.com/read/28335028/defining-the-5%C3%AE-and-3%C3%AE-landscape-of-the-drosophila-transcriptome-with-exo-seq-and-rnaseh-seq
#2
Shaked Afik, Osnat Bartok, Maxim N Artyomov, Alexander A Shishkin, Sabah Kadri, Mor Hanan, Xiaopeng Zhu, Manuel Garber, Sebastian Kadener
Cells regulate biological responses in part through changes in transcription start sites (TSS) or cleavage and polyadenylation sites (PAS). To fully understand gene regulatory networks, it is therefore critical to accurately annotate cell type-specific TSS and PAS. Here we present a simple and straightforward approach for genome-wide annotation of 5΄- and 3΄-RNA ends. Our approach reliably discerns bona fide PAS from false PAS that arise due to internal poly(A) tracts, a common problem with current PAS annotation methods...
February 22, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28334362/development-of-an-attract-and-kill-strategy-for-drosophila-suzukii-diptera-drosophilidae-evaluation-of-attracticidal-spheres-under-laboratory-and-field-conditions
#3
Kevin B Rice, Brent D Short, Tracy C Leskey
Drosophila suzukii Matsumura (Diptera: Drosophilidae) is an invasive, polyphagous fruit fly that attacks soft-skinned fruits. Originally from Asia, D. suzukii has successfully invaded the United States and the European and South American countries. At present, calendar-based insecticide applications are used to combat D. suzukii. Here, we evaluate a behaviorally based attract-and-kill management technique using attracticidal spheres to reduce D. suzukii infestations in raspberries. In laboratory bioassays aimed at identifying effective toxicants, attracticidal spheres containing dinotefuran at 1...
March 7, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334323/interspecific-competition-between-ceratitis-capitata-and-two-bactrocera-spp-diptera-tephritidae-evaluated-via-adult-behavioral-interference-under-laboratory-conditions
#4
Hui Liu, Can Zhang, Bo-Hua Hou, Ge-Cheng Ou-Yang, Jun Ma
The Mediterranean fruit fly, Ceratitis capitata (Wiedemann), is considered one of the most invasive tephritid species. It has spread and established populations successfully throughout many of the tropical temperate regions, partially owing to the increase in global trading activity that facilitates diffusion of species. However, C. capitata has never been detected in China, even though some areas of the country have favorable climate and ample food resources. Historically, some researchers have hypothesized that the principal reasons for its absence are the defenses mounted by native Bactrocera species against C...
March 15, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334318/laboratory-and-field-age-of-aqueous-grape-juice-bait-and-capture-of-zaprionus-indianus-diptera-drosophilidae
#5
Nancy D Epsky, Micah A Gill
Volatile chemicals produced by actively fermenting aqueous grape juice bait have been found to be highly attractive to the African fig fly, Zaprionus indianus Gupta. This is a highly dynamic system and time period of fermentation is an important factor in bait efficacy. A series of field tests were conducted that evaluated effects of laboratory versus field fermentation and sampling period (days after placement [DAP]) on bait effectiveness as the first step in identifying the chemicals responsible for attraction...
March 8, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334300/flight-capacity-of-the-walnut-twig-beetle-coleoptera-scolytidae-on-a-laboratory-flight-mill
#6
Aubree M Kees, Andrea R Hefty, Robert C Venette, Steven J Seybold, Brian H Aukema
The walnut twig beetle, Pityophthorus juglandis Blackman, and associated fungus Geosmithia morbida Kolařík, Freeland, Utley, & Tisserat constitute the insect-fungal complex that causes thousand cankers disease in walnut, Juglans spp., and wingnut, Pterocarya spp. Thousand cankers disease is responsible for the decline of Juglans species throughout the western United States and more recently, the eastern United States and northern Italy. We examined the flight capacity of P. juglandis over 24-h trials on a flight mill in the laboratory...
March 16, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28334298/distribution-and-persistence-of-sterile-screwworms-diptera-calliphoridae-released-at-the-panama-colombia-border
#7
Steven R Skoda, Pamela L Phillips, Agustin Sagel, Muhammad F Chaudhury
The sterile insect technique is used by the Comisión Panamá - Estados Unidos para la Erradicación y Prevención del Gusano Barrenador del Ganado (COPEG) to maintain a barrier at the border of Panama and Colombia to prevent screwworms, Cochliomyia hominivorax (Coquerel), from South America reinfesting North America. Before studying the distribution and persistence of sterilized, mass-produced screwworms released in the barrier zone, the utility of applying fluorescent dust (∼1.0 mg/fly) to pupae and to newly emerged adults was evaluated to determine the potential effect on fly survival...
February 11, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334297/the-knight-stick-trap-and-knight-stick-sticky-wraps-new-tools-for-stable-fly-diptera-muscidae-management
#8
Jerome A Hogsette, Daniel L Kline
Stable fly, Stomoxys calcitrans (L.) (Diptera: Muscidae), management can be difficult, especially in situations where pesticide usage is restricted or disallowed. Traps have been used for monitoring stable flies, but have rarely been used for management. The Knight Stick (KS) trap recently became available, and preliminary studies indicated that it might be an improvement to traps currently in use. The Olson Sticky Fly trap was chosen as the control trap for the purpose of comparisons. Both traps attract stable flies by alteration of light waves and capture flies on a sticky wrap covering the trap base...
March 20, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334188/climate-extremes-vegetation-change-and-decoupling-of-interactive-fire-grazing-processes-exacerbate-fly-parasitism-of-cattle
#9
John D Scasta, Justin L Talley, David M Engle, Diane M Debinski
We assessed local horn fly (Haematobia irritans L.) and face fly (Musca autumnalis De Geer) communities on cattle in 2012 and 2013 relative to vegetation and climate data to understand how parasitism of cattle is influenced by change in climate and vegetation structure. We compared heterogeneity management using spatially and temporally discrete fires (i.e., patch-burning one-third of a pasture annually) to homogeneity management (i.e., burning entire pasture in 2012 then no burning in 2013), with cattle grazing all years in both treatments...
February 17, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28331029/the-sac1-domain-in-synaptojanin-is-required-for%C3%A2-autophagosome-maturation-at-presynaptic%C3%A2-terminals
#10
Roeland Vanhauwaert, Sabine Kuenen, Roy Masius, Adekunle Bademosi, Julia Manetsberger, Nils Schoovaerts, Laura Bounti, Serguei Gontcharenko, Jef Swerts, Sven Vilain, Marina Picillo, Paolo Barone, Shashini T Munshi, Femke Ms de Vrij, Steven A Kushner, Natalia V Gounko, Wim Mandemakers, Vincenzo Bonifati, Frederic A Meunier, Sandra-Fausia Soukup, Patrik Verstreken
Presynaptic terminals are metabolically active and accrue damage through continuous vesicle cycling. How synapses locally regulate protein homeostasis is poorly understood. We show that the presynaptic lipid phosphatase synaptojanin is required for macroautophagy, and this role is inhibited by the Parkinson's disease mutation R258Q. Synaptojanin drives synaptic endocytosis by dephosphorylating PI(4,5)P2, but this function appears normal in Synaptojanin(RQ) knock-in flies. Instead, R258Q affects the synaptojanin SAC1 domain that dephosphorylates PI(3)P and PI(3,5)P2, two lipids found in autophagosomal membranes...
March 22, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28330167/genetic-characterization-of-moroccan-and-the-exotic-bread-wheat-cultivars-using-functional-and-random-dna-markers-linked-to-the-agronomic-traits-for-genomics-assisted-improvement
#11
Fatima Henkrar, Jamal El-Haddoury, Hassan Ouabbou, Najib Bendaou, Sripada M Udupa
Genetic characterization, diversity analysis and estimate of the genetic relationship among varieties using functional and random DNA markers linked to agronomic traits can provide relevant guidelines in selecting parents and designing new breeding strategies for marker-assisted wheat cultivar improvement. Here, we characterize 20 Moroccan and 19 exotic bread wheat (Triticum aestivum L.) cultivars using 47 functional and 7 linked random DNA markers associated with 21 loci of the most important traits for wheat breeding...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329329/increased-transmissibility-of-leishmania-donovani-from-the-mammalian-host-to-vector-sand-flies-after-multiple-exposures-to-sand-fly-bites
#12
Joanna G Valverde, Andrea Paun, Ehud Inbar, Audrey Romano, Michael Lewis, Kashinath Ghosh, David Sacks
Background: Patients with active visceral leishmaniasis are important reservoirs in the anthroponotic transmission cycle of Leishmania donovani. The role of the blood or skin as a source of infection to sand flies remains unclear, and the possible effect of multiple exposures to fly bites on transmissibility has not been addressed. Methods: L. donovani infected hamsters were exposed to xenodiagnoses with Lutzomyia longipalpis on the same or different sites on the abdomen on two consecutive days, or by artificial feeding on the skin or blood...
March 9, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28327794/seasonality-of-sand-flies-diptera-psychodidae-and-leishmania-dna-detection-in-vector-species-in-an-area-with-endemic-visceral-leishmaniasis
#13
Lara Saraiva, Camila Gonçalves Leite, Ana Cristina Vianna Mariano da Rocha Lima, Luiz Otávio Alves de Carvalho, Agnes Antônia Sampaio Pereira, Jerônimo Marteleto Nunes Rugani, Felipe Dutra Rego, Célia Maria Ferreira Gontijo, José Dilermando Andrade
BACKGROUND: Leishmaniases are a serious health problem in southeast Brazil, including the city of Belo Horizonte (BH), Minas Gerais state (MG), where there are high rates of incidence and mortality due to visceral leishmaniases. BH is divided into nine sanitary districts (SD) of which one, the Venda Nova SD, was selected for this study because it has high rates of positivity for canine leishmaniasis and high incidence of human leishmaniasis. OBJECTIVES: This study aimed to survey the sand fly fauna in Venda Nova SD from August 2011 to July 2013 and perform a descriptive analysis of the vector population...
April 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28325980/baby-killers-documentation-and-evolution-of-scuttle-fly-diptera-phoridae-parasitism-of-ant-hymenoptera-formicidae-brood
#14
Brian V Brown, John M Hash, Emily A Hartop, Wendy Porras, Dalton de Souza Amorim
BACKGROUND: Numerous well-documented associations occur among species of scuttle flies (Diptera: Phoridae) and ants (Hymenoptera: Formicidae), but examples of brood parasitism are rare and the mechanisms of parasitism often remain unsubstantiated. NEW INFORMATION: We present two video-documented examples of ant brood (larvae and pupae) parasitism by scuttle flies. In footage from Estação Biológica de Boracéia in Brazil, adult females of Ceratoconus setipennis Borgmeier can be seen attacking workers of Linepithema humile (Mayr) species group while they are carrying brood, and ovipositing directly onto brood in the nest...
2017: Biodiversity Data Journal
https://www.readbyqxmd.com/read/28325706/biochemical-methane-potential-from-sewage-sludge-effect-of-an-aerobic-pretreatment-and-fly-ash-addition-as-source-of-trace-elements
#15
César Huiliñir, Paula Pinto-Villegas, Alejandra Castillo, Silvio Montalvo, Lorna Guerrero
The effect of aerobic pretreatment and fly ash addition on the production of methane from mixed sludge is studied. Three assays with pretreated and not pretreated mixed sludge in the presence of fly ash (concentrations of 0, 10, 25, 50, 250 and 500mg/L) were run at mesophilic condition. It was found that the combined use of aerobic pretreatment and fly ash addition increases methane production up to 70% when the fly ash concentrations were lower than 50mg/L, while concentrations higher than 250mg/L cause up to 11% decrease of methane production...
March 18, 2017: Waste Management
https://www.readbyqxmd.com/read/28324743/visual-tracking-hot-pursuit-with-tiny-eyes
#16
Eric J Warrant
Flying insect predators intercept their aerial prey with deadly precision. New research reveals that a tiny robber fly, with a brain smaller than a pinhead, achieves this using the same visual mechanism that we ourselves employ to catch a passing ball.
March 20, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28324740/evolution-fruit-fly-clocks-on-the-edge
#17
Charalambos P Kyriacou
Fruit flies evolved in tropical regions under stable light-dark cycles. However, their photosensitive circadian clock had to adapt to extreme seasonal photoperiods during their colonisation of temperate regions. This was achieved by changing the neuronal expression of two key clock-related components.
March 20, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28324736/sensory-evolution-trouble-in-the-cherry-orchard
#18
Florian Maderspacher, Marcus C Stensmyr
Understanding how and why some species become pests, while their relatives remain harmless, might help us control them. A new study looks at how sensory mechanisms evolved in an emerging pest fly species.
March 20, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28324614/fluorescence-based-high-throughput-and-targeted-image-acquisition-and-analysis-for-phenotypic-screening
#19
Manuel Gunkel, Jan Philipp Eberle, Holger Erfle
Applying the right acquisition method in a fluorescence imaging-based screening context is of great importance to obtain an appropriate readout and to select the right scale of the screen. In order to save imaging time and data, we have developed routines for multiscale targeted imaging, providing both a broad overview of a sample and additional in-depth information for targets of interest identified within the screen. These objects can be identified and acquired on-the-fly by an interconnection of image acquisition and image analysis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28324607/sted-imaging-in-drosophila-brain-slices
#20
Sandra Fendl, Jesús Pujol-Martí, Joel Ryan, Alexander Borst, Robert Kasper
Super-resolution microscopy is a very powerful tool to investigate fine cellular structures and molecular arrangements in biological systems. For instance, stimulated emission depletion (STED) microscopy has been successfully used in recent years to investigate the arrangement and colocalization of different protein species in cells in culture and on the surface of specimens. However, because of its extreme sensitivity to light scattering, super-resolution imaging deep inside tissues remains a challenge. Here, we describe the preparation of thin slices from the fruit fly (Drosophila melanogaster) brain, subsequent immunolabeling and imaging with STED microscopy...
2017: Methods in Molecular Biology
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