369,887 results match your criteria Arthropoda Selecta[Journal]


Genome-wide identification of ATP-binding cassette transporters and expression profiles in the Asian citrus psyllid, Diaphorina citri, exposed to imidacloprid.

Comp Biochem Physiol Part D Genomics Proteomics 2019 Apr 11;30:305-311. Epub 2019 Apr 11.

Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, International Joint Laboratory of China-Belgium on Sustainable Crop Pest Control, Academy of Agricultural Sciences, Southwest University, Chongqing 400716, China. Electronic address:

ATP-binding cassette (ABC) transporters belong to a large protein superfamily found in both prokaryotic and eukaryotic organisms. In arthropods, ABC transporters are involved in defense and resistance to insecticides. The Asian citrus psyllid (ACP), Diaphorina citri, is a major vector of the Huanglongbing pathogen (Candidatus Liberibacter asiaticus) worldwide. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.cbd.2019.04.003DOI Listing

Hierarchical Virtual Screening of Potential Insectides Inhibitors of Acetylcholinesterase and Juvenile Hormone from Temephos.

Pharmaceuticals (Basel) 2019 Apr 18;12(2). Epub 2019 Apr 18.

Postgraduate Program in-Network in Pharmaceutical Innovation, Federal University of Amapá, Macapá, AP 68902-280, Brazil.

(Linnaeus, 1762; Diptera: Culicidae) is the main vector transmitting viral diseases such as dengue fever, dengue haemorrhagic fever, urban yellow fever, zika and chikungunya. Worldwide, especially in the Americas and Brazil, many cases of dengue have been reported in recent years, which have shown significant growth. The main control strategy is the elimination of the vector, carried out through various education programs, to change human habits, but the most usual is biological control, together with environmental management and chemical control. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3390/ph12020061DOI Listing

Metabolic mechanisms and acetylcholinesterase sensitivity involved in tolerance to chlorpyrifos-ethyl in the earwig Forficula auricularia.

Chemosphere 2019 Apr 11;227:416-424. Epub 2019 Apr 11.

Avignon University, Aix Marseille Univ, CNRS, IRD, IMBE, Pôle Agrosciences, 301 rue Baruch de Spinoza, BP 21239, 84916, Avignon, France.

Apple orchards are highly treated crops, in which organophosphorus (OP) are among the most heavily sprayed insecticides. These pesticides are toxic to non-target arthropods and their repeated use increases the risk of resistance. We studied mechanisms involved in tolerance and resistance to OP insecticides in the earwig Forficula auricularia, an effective generalist predator in pomefruit orchards. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.chemosphere.2019.04.065DOI Listing

Phylogenomics of the longitarsal Colossendeidae: The evolutionary history of an Antarctic sea spider radiation.

Mol Phylogenet Evol 2019 Apr 16. Epub 2019 Apr 16.

Zoological Research Museum Alexander Koenig, Statistical Phylogenetics and Phylogenomics, Adenauerallee 160, D-53113 Bonn, Germany; Faculty of Mathematics and Natural Sciences, University of Bonn, D-53012 Bonn, Germany.

Sea spiders (Pycnogonida) constitute a group of marine benthic arthropods that has a particularly high species diversity in the Southern Ocean. The "longitarsal" group of the sea spider family Colossendeidae is especially abundant in this region. However, this group also includes some representatives from other oceans, which raises the question where the group originates from. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S10557903183051
Publisher Site
http://dx.doi.org/10.1016/j.ympev.2019.04.017DOI Listing
April 2019
2 Reads

Immunity of Fleas (Order Siphonaptera).

Authors:
Lisa D Brown

Dev Comp Immunol 2019 Apr 16. Epub 2019 Apr 16.

Department of Biology, Georgia Southern University, P.O. Box 8042-1, Statesboro, GA, 30460, USA. Electronic address:

The immune response of arthropod vectors plays a key role in the spread and transmission of vector-borne diseases. Although fleas transmit several human pathogens (e.g. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.dci.2019.03.019DOI Listing

Extracting the invisible: obtaining high quality DNA is a challenging task in small arthropods.

PeerJ 2019 12;7:e6753. Epub 2019 Apr 12.

Institute of Biology, University of Graz, Graz, Austria.

Background: The application of an appropriate extraction method is a relevant factor for the success of all molecular studies.

Methods: Seven different DNA extraction methods suitable for high-throughput DNA sequencing with very small arthropods were compared by applying nine different protocols: three silica gel based spin methods, two cetyltrimethyl ammonium bromide (CTAB) based ones (one with an additional silica membrane), a protein precipitation method and a method based on a chelating resin (applying different protocols). The quantity (concentration) and quality (degradation, contamination, polymerase chain reaction (PCR) and sequencing success) of the extracted DNA as well as the costs, preparation times, user friendliness, and required supplies were compared across these methods. Read More

View Article

Download full-text PDF

Source
https://peerj.com/articles/6753
Publisher Site
http://dx.doi.org/10.7717/peerj.6753DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6463856PMC
April 2019
1 Read

Two alpha-2 macroglobulin from Portunus trituberculatus involved in the prophenoloxidase system, phagocytosis and regulation of antimicrobial peptides.

Fish Shellfish Immunol 2019 Apr 14;89:574-585. Epub 2019 Apr 14.

School of Marine Science, Ningbo University, Zhejiang, Ningbo, 315211, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China. Electronic address:

Alpha-2 macroglobulin (A2M) is a ubiquitous protease inhibitor involved in the innate host defense system. Herein, two distinct A2M genes (designated as PtA2M-1 and PtA2M-2, respectively) were isolated from the swimming crab Portunus trituberculatus. PtA2M-1 and PtA2M-2 encoded proteins with 1541 or 1516 amino acids, respectively, containing the typically functional domains of A2M. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S10504648193027
Publisher Site
http://dx.doi.org/10.1016/j.fsi.2019.04.033DOI Listing
April 2019
1 Read

Intracellular Antimicrobial Peptides Targeting the Protein Synthesis Machinery.

Adv Exp Med Biol 2019 ;1117:73-89

Institute for Biochemistry and Molecular Biology, University of Hamburg, Hamburg, Germany.

While antimicrobial peptides (AMPs) are well-known for their disruptive effects on bacterial membranes, the mechanism of many intracellular AMPs is still being elucidated. In the recent years, it has been demonstrated that the subclass of proline-rich AMPs (PrAMPs) can pass through the bacterial membrane and kill bacteria by inhibiting protein synthesis. PrAMPs are a product of the innate immune system and are secreted in response to bacterial infection. Read More

View Article

Download full-text PDF

Source
http://link.springer.com/10.1007/978-981-13-3588-4_6
Publisher Site
http://dx.doi.org/10.1007/978-981-13-3588-4_6DOI Listing
January 2019
1 Read

Twenty years of the 'Preparation for Oxidative Stress' (POS) theory: Ecophysiological advantages and molecular strategies.

Comp Biochem Physiol A Mol Integr Physiol 2019 Apr 9. Epub 2019 Apr 9.

Departamento de Biologia Celular, Universidade de Brasília, Brazil. Electronic address:

Freezing, dehydration, salinity variations, hypoxia or anoxia are some of the environmental constraints that many organisms must frequently endure. Organisms adapted to these stressors often reduce their metabolic rates to maximize their chances of survival. However, upon recovery of environmental conditions and basal metabolic rates, cells are affected by an oxidative burst that, if uncontrolled, leads to (oxidative) cell damage and eventually death. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.cbpa.2019.04.004DOI Listing

First molecular detection of Mycoplasma suis in the pig louse Haematopinus suis (Phthiraptera: Anoplura) from Argentina.

Acta Trop 2019 Apr 9;194:165-168. Epub 2019 Apr 9.

Centro de Bioinvestigaciones -CeBio, Centro de Investigaciones y Transferencia del Noroeste de la Provincia de Buenos Aires- CIT NOBA (CONICET-UNNOBA), Ruta Provincial 32 Km 3.5, 2700, Pergamino, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina. Electronic address:

Porcine haemoplasmosis caused by Mycoplasma suis affects the global pig industry with significant economic losses. The main transmission route of M. suis is through the blood and some haematophagous arthropods, like flies and mosquitoes, could be the vectors to this pathogen. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.actatropica.2019.04.007DOI Listing
April 2019
1 Read

Endobiotic communities of Marine Sponges in Cyprus (Levantine Sea).

Heliyon 2019 Mar 26;5(3):e01392. Epub 2019 Mar 26.

Department of Fisheries and Marine Research (DFMR), Ministry of Agriculture, Rural Development and Environment, 2033, Nicosia, Cyprus.

Sponges host cryptic endobionts within their network of canals, with representatives from all major animal phyla. This study investigates the endobiotic community of four sponge species (, cf. and ) that were collected during scientific trawl surveys in the coastal area of Cyprus. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S24058440183551
Publisher Site
http://dx.doi.org/10.1016/j.heliyon.2019.e01392DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6439280PMC
March 2019
2 Reads

A diecast mineralization process forms the tough mantis shrimp dactyl club.

Proc Natl Acad Sci U S A 2019 Apr 11. Epub 2019 Apr 11.

Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University (NTU), 639798 Singapore;

Biomineralization, the process by which mineralized tissues grow and harden via biogenic mineral deposition, is a relatively lengthy process in many mineral-producing organisms, resulting in challenges to study the growth and biomineralization of complex hard mineralized tissues. Arthropods are ideal model organisms to study biomineralization because they regularly molt their exoskeletons and grow new ones in a relatively fast timescale, providing opportunities to track mineralization of entire tissues. Here, we monitored the biomineralization of the mantis shrimp dactyl club-a model bioapatite-based mineralized structure with exceptional mechanical properties-immediately after ecdysis until the formation of the fully functional club and unveil an unusual development mechanism. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1073/pnas.1816835116DOI Listing
April 2019
3 Reads

Neem oil increases the persistence of the entomopathogenic fungus Metarhizium anisopliae for the control of Aedes aegypti (Diptera: Culicidae) larvae.

Parasit Vectors 2019 Apr 11;12(1):163. Epub 2019 Apr 11.

Department of Entomology and Plant Pathology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, CEP 28013-602, Brazil.

Background: The entomopathogenic fungus Metarhizium anisopliae is a candidate for the integrated management of the disease vector mosquito Aedes aegypti. Metarhizium anisopliae is pathogenic and virulent against Ae. aegypti larvae; however, its half-life is short without employing adjuvants. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s13071-019-3415-xDOI Listing

Mosquito antiviral defense mechanisms: a delicate balance between innate immunity and persistent viral infection.

Parasit Vectors 2019 Apr 11;12(1):165. Epub 2019 Apr 11.

Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, QLD, 4215, Australia.

Mosquito-borne diseases are associated with major global health burdens. Aedes spp. and Culex spp. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s13071-019-3433-8DOI Listing
April 2019
1 Read

Update on the biology and ecology of Culicoides species in the South-West region of Cameroon with implications on the transmission of Mansonella perstans.

Parasit Vectors 2019 Apr 11;12(1):166. Epub 2019 Apr 11.

Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Bonn, Germany.

Background: Culicoides (Diptera; Ceratoponidae) are tiny, stout, blood-sucking flies with a near worldwide distribution. When present, they are often considered a biting nuisance but in addition, they are involved in the transmission of pathogens to humans, domestic and wild animals. Data on Culicoides species in the South-West region of Cameroon dates back to the 1950s. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s13071-019-3432-9DOI Listing

Molecular detection of Rickettsia felis in dogs, rodents and cat fleas in Zambia.

Parasit Vectors 2019 Apr 11;12(1):168. Epub 2019 Apr 11.

Division of Collaboration and Education, Research Center for Zoonosis Control, Hokkaido University, Kita 20, Nishi 10, Kita-Ku, Sapporo, Hokkaido, 001-0020, Japan.

Background: Flea-borne spotted fever is a zoonosis caused by Rickettsia felis, a Gram-negative obligate intracellular bacterium. The disease has a worldwide distribution including western and eastern sub-Saharan Africa where it is associated with febrile illness in humans. However, epidemiology and the public health risks it poses remain neglected especially in developing countries including Zambia. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s13071-019-3435-6DOI Listing
April 2019
3 Reads

Trends in insecticide resistance in Culex pipiens pallens over 20 years in Shandong, China.

Parasit Vectors 2019 Apr 11;12(1):167. Epub 2019 Apr 11.

Department of Medical Entomology, Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining, 272033, Shandong, People's Republic of China.

Background: Culex pipiens pallens is the most abundant Culex mosquito species in northern China and is an important vector of bancroftian filariasis and, potentially, West Nile virus. Insecticides, particularly pyrethroids, are widely used for adult mosquito control. Insecticide resistance has become common in several mosquito species, and vector control is the main method currently available to prevent disease transmission. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s13071-019-3416-9DOI Listing
April 2019
1 Read

Going Deeper into High and Low Phylogenetic Relationships of Protura.

Genes (Basel) 2019 Apr 10;10(4). Epub 2019 Apr 10.

Key Laboratory of Insect Developmental and Evolutionary Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China.

Proturans are small, wingless, soil-dwelling arthropods, generally associated with the early diversification of Hexapoda. Their bizarre morphology, together with conflicting results of molecular studies, has nevertheless made their classification ambiguous. Furthermore, their limited dispersal capability (due to the primarily absence of wings) and their euedaphic lifestyle have greatly complicated species-level identification. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3390/genes10040292DOI Listing
April 2019
1 Read

Experimental duplication of bilaterian body axes in spider embryos: Holm's organizer and self-regulation of embryonic fields.

Dev Genes Evol 2019 Apr 10. Epub 2019 Apr 10.

Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka, 569-1125, Japan.

Bilaterally symmetric body plans of vertebrates and arthropods are defined by a single set of two orthogonal axes, the anterior-posterior (or head-tail) and dorsal-ventral axes. In vertebrates, and especially amphibians, complete or partial doubling of the bilaterian body axes can be induced by two different types of embryological manipulations: transplantation of an organizer region or bi-sectioning of an embryo. Such axis doubling relies on the ability of embryonic fields to flexibly respond to the situation and self-regulate toward forming a whole body. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00427-019-00631-xDOI Listing

Tropical forest conversion to rubber plantation affects soil micro- & mesofaunal community & diversity.

Sci Rep 2019 Apr 10;9(1):5893. Epub 2019 Apr 10.

School of Geography and Ocean Sciences, Nanjing University, Nanjing, 210023, Jiangsu Province, China.

Tropical rainforests play important roles in carbon sequestration and are hot spots for biodiversity. Tropical forests are being replaced by rubber (Hevea brasiliensis) plantations, causing widespread concern of a crash in biodiversity. Such changes in aboveground vegetation might have stronger impacts on belowground biodiversity. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/s41598-019-42333-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458137PMC

Abiotic factors and population dynamic of Aedes aegypti and Aedes albopictus in an endemic area of dengue in Brazil.

Rev Inst Med Trop Sao Paulo 2019 4;61:e18. Epub 2019 Apr 4.

Universidade Federal de Mato Grosso do Sul, Programa de Pós-Graduação em Doenças Infecciosas e Parasitárias, Campo Grande, Mato Grosso do Sul, Brazil.

Aedes aegypti and Aedes albopictus are exotic species in the Americas with high epidemiological relevance as they are vectors of many pathogens. This study aimed at understanding the population dynamics of A. aegypti and A. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1590/S1678-9946201961018DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6453418PMC

Atrazine exposure shifts activity but has minimal effects on courtship in an agrobiont spider.

Ecotoxicology 2019 Apr 9. Epub 2019 Apr 9.

Department of Biology, Miami University, Hamilton, OH, 45011, USA.

The behavior of many animals relies upon the input of chemical signals throughout the environment. Those animals that live in close proximity to humans may then be at risk, as the input of anthropogenic chemicals can have significant sublethal effects by masking or altering these naturally occurring signals. While the herbicide atrazine has been found to have the potential to alter such chemical information, research is lacking on how it may impact agrobiont arthropods which are the first and most direct line of exposure. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10646-019-02041-1DOI Listing

Species composition, diversity, and the abundance of arthropods inhabiting burrows of the common hamster (Cricetus cricetus L.).

Bull Entomol Res 2019 Apr 10:1-13. Epub 2019 Apr 10.

Department of Systematic Zoology,Faculty of Biology,Adam Mickiewicz University,Umultowska Str. 89,61-614 Poznań,Poland.

The is insufficient knowledge of arthropod communities occurring in specific microhabitats. In this study, we characterize the arthropod assemblages inhabiting burrows of the common hamster (Cricetus cricetus L.) and factors that determine their diversity and abundance. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1017/S0007485319000087DOI Listing

Associated cultivated plants in tomato cropping systems structure arthropod communities and increase the Helicoverpa armigera regulation.

Bull Entomol Res 2019 Apr 10:1-8. Epub 2019 Apr 10.

GECO, Univ Montpellier,CIRAD, Montpellier,France.

Cultivating plant mixtures is expected to provide a higher productivity and a better control of pests and diseases. The structure of the arthropod community is a major driver of the magnitude of natural pest regulations.With the aim of optimizing pest management, a study was carried out to determine the effect of the cropping system type (tomato mono-cropping vs. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1017/S0007485319000117DOI Listing

Untangling posterior growth and segmentation by analyzing mechanisms of axis elongation in hemichordates.

Proc Natl Acad Sci U S A 2019 Apr 9. Epub 2019 Apr 9.

Hopkins Marine Station, Stanford University, Pacific Grove, CA 93950.

The trunk is a key feature of the bilaterian body plan. Despite spectacular morphological diversity in bilaterian trunk anatomies, most insights into trunk development are from segmented taxa, namely arthropods and chordates. Mechanisms of posterior axis elongation (PAE) and segmentation are tightly coupled in arthropods and vertebrates, making it challenging to differentiate between the underlying developmental mechanisms specific to each process. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1073/pnas.1817496116DOI Listing

Functional crosstalk across IMD and Toll pathways: insight into the evolution of incomplete immune cascades.

Proc Biol Sci 2019 Feb;286(1897):20182207

2 National Institute of Advanced Industrial Science and Technology (AIST) , Tsukuba 305-8566 , Japan.

In insects, antimicrobial humoral immunity is governed by two distinct gene cascades, IMD pathway mainly targeting Gram-negative bacteria and Toll pathway preferentially targeting Gram-positive bacteria, which are widely conserved among diverse metazoans. However, recent genomic studies uncovered that IMD pathway is exceptionally absent in some hemipteran lineages like aphids and assassin bugs. How the apparently incomplete immune pathways have evolved with functionality is of interest. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1098/rspb.2018.2207DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6408883PMC
February 2019
1 Read

Toward accurate species-level metabarcoding of arthropod communities from the tropical forest canopy.

Ecol Evol 2019 Mar 4;9(6):3105-3116. Epub 2019 Mar 4.

Department of Life Sciences Natural History Museum London UK.

Metabarcoding of arthropod communities can be used for assessing species diversity in tropical forests but the methodology requires validation for accurate and repeatable species occurrences in complex mixtures. This study investigates how the composition of ecological samples affects the accuracy of species recovery.Starting with field-collected bulk samples from the tropical canopy, the recovery of specimens was tested for subsets of different body sizes and major taxa, by assembling these subsets into increasingly complex composite pools. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/ece3.4839DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6434547PMC

Exoskeleton Repair in Invertebrates.

Vet Clin North Am Exot Anim Pract 2019 May;22(2):315-330

Wildfowl & Wetlands Trust, Slimbridge, Gloucestershire GL2 7BT, UK.

This article focuses on exoskeleton repair in invertebrates presented due to physical trauma with impairment of the integument and often with hemolymph loss. Invertebrates, especially the larger-bodied arthropods, can severely damage their exoskeleton if dropped or if they are handled during ecdysis. Clinicians are encouraged to familiarize themselves with the basic first-aid techniques for invertebrate exoskeleton repair. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.cvex.2019.01.008DOI Listing

First detection of Mycoplasma wenyonii in France: Identification, evaluation of the clinical impact and development of a new specific detection assay.

Comp Immunol Microbiol Infect Dis 2019 Apr 22;63:148-153. Epub 2019 Jan 22.

IHAP, Pathogenesis of Mycoplasma Infections, University of Toulouse, INRA, ENVT, 23 chemin des Capelles, 31076, Toulouse Cedex, France. Electronic address:

Mycoplasma wenyonii, a hemoplasma infecting cattle, was never detected in France. In 2014, evocative inclusions were observed in erythrocytes from cattle presenting milk drops, anemia, and edema in Brittany (France). A survey was then initiated to investigate the epidemiological situation and correlate mycoplasma detection with clinical signs. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.cimid.2019.01.010DOI Listing
April 2019
2 Reads

Trypanosoma cruzi infection, discrete typing units and feeding sources among Psammolestes arthuri (Reduviidae: Triatominae) collected in eastern Colombia.

Parasit Vectors 2019 Apr 8;12(1):157. Epub 2019 Apr 8.

Grupo de Investigaciones Microbiológicas-UR (GIMUR), Programa de Biología, Facultad de Ciencias Naturales y Matemáticas, Universidad del Rosario, Bogotá, Colombia.

Background: Chagas disease (CD) is caused by the protozoan parasite Trypanosoma cruzi, and is transmitted by hematophagous insects of the family Reduviidae. Psammolestes arthuri is a sylvatic triatomine distributed in Colombia and Venezuela which feeds on birds and there are a few studies that have reported Ps. arthuri naturally infected with T. Read More

View Article

Download full-text PDF

Source
https://parasitesandvectors.biomedcentral.com/articles/10.11
Publisher Site
http://dx.doi.org/10.1186/s13071-019-3422-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6454608PMC
April 2019
2 Reads

Small RNA responses of Culex mosquitoes and cell lines during acute and persistent virus infection.

Insect Biochem Mol Biol 2019 Apr 5;109:13-23. Epub 2019 Apr 5.

Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, 80523, USA. Electronic address:

RNA interference is a crucial antiviral mechanism in arthropods, including in mosquito vectors of arthropod-borne viruses (arboviruses). Although the exogenous small interfering RNA (siRNA) pathway constitutes an efficient antiviral response in mosquitoes, virus-derived P-element induced wimpy testis (PIWI)-interacting RNAs (piRNAs) have been implicated in the response to alpha-, bunya- and flaviviruses in Aedes spp. mosquitoes. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ibmb.2019.04.008DOI Listing
April 2019
2 Reads

Heat hardening capacity in Drosophila melanogaster is life stage-specific and juveniles show the highest plasticity.

Biol Lett 2019 Feb;15(2):20180628

1 Department of Chemistry and Bioscience, Aalborg University , Fredrik Bajers Vej 7H, 9220 Aalborg E , Denmark.

Variations in stress resistance and adaptive plastic responses during ontogeny have rarely been addressed, despite the possibility that differences between life stages can affect species' range margins and thermal tolerance. Here, we assessed the thermal sensitivity and hardening capacity of Drosophila melanogaster across developmental stages from larval to the adult stage. We observed strong differences between life stages in heat resistance, with adults being most heat resistant followed by puparia, pupae and larvae. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1098/rsbl.2018.0628DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405463PMC
February 2019
1 Read

The interplay of landscape composition and configuration: new pathways to manage functional biodiversity and agroecosystem services across Europe.

Ecol Lett 2019 Apr 7. Epub 2019 Apr 7.

Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, 97074, Würzburg, Germany.

Managing agricultural landscapes to support biodiversity and ecosystem services is a key aim of a sustainable agriculture. However, how the spatial arrangement of crop fields and other habitats in landscapes impacts arthropods and their functions is poorly known. Synthesising data from 49 studies (1515 landscapes) across Europe, we examined effects of landscape composition (% habitats) and configuration (edge density) on arthropods in fields and their margins, pest control, pollination and yields. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/ele.13265DOI Listing
April 2019
1 Read

The Endosymbionts.

Microbiol Spectr 2019 03;7(2)

CRBM, University of Montpellier, CNRS, Montpellier, France.

The endosymbionts encompass a large group of intracellular bacteria of biomedical and veterinary relevance, closely related to , , and . This genus of Gram-negative members of the does not infect vertebrates but is instead restricted to ecdysozoan species, including terrestrial arthropods and a family of parasitic filarial nematodes, the Onchocercidae. The profoundly impact not only the ecology and evolution but also the reproductive biology of their hosts, through a wide range of symbiotic interactions. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1128/microbiolspec.BAI-0018-2019DOI Listing

Interpreting mosquito feeding patterns in Australia through an ecological lens: an analysis of blood meal studies.

Parasit Vectors 2019 Apr 4;12(1):156. Epub 2019 Apr 4.

Environmental Futures Research Institute, Griffith University, Brisbane, QLD, 4111, Australia.

Background: Mosquito-borne pathogens contribute significantly to the global burden of disease, infecting millions of people each year. Mosquito feeding is critical to the transmission dynamics of pathogens, and thus it is important to understanding and interpreting mosquito feeding patterns. In this paper we explore mosquito feeding patterns and their implications for disease ecology through a meta-analysis of published blood meal results collected across Australia from more than 12,000 blood meals from 22 species. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s13071-019-3405-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6448275PMC

Mosquito biodiversity and mosquito-borne viruses in the United Arab Emirates.

Parasit Vectors 2019 Apr 3;12(1):153. Epub 2019 Apr 3.

Viral Zoonoses, Emerging and Vector-borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, Vienna, Austria.

Background: In the last 50 years, the United Arab Emirates (UAE) has experienced rapid population growth and urbanization. Urbanization is known to influence biodiversity, and there appears to be a link between the emergence of arboviruses and urban growth. Very little is known about the UAE mosquito species richness and dominant vectors. Read More

View Article

Download full-text PDF

Source
https://parasitesandvectors.biomedcentral.com/articles/10.11
Publisher Site
http://dx.doi.org/10.1186/s13071-019-3417-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6448230PMC
April 2019
7 Reads
3.430 Impact Factor

Mitochondrial Protein Synthesis and mtDNA Levels Coordinated through an Aminoacyl-tRNA Synthetase Subunit.

Cell Rep 2019 Apr;27(1):40-47.e5

Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain; Catalan Institution for Research and Advanced Studies (ICREA), P/Lluis Companys 23, 08010 Barcelona, Catalonia, Spain. Electronic address:

The aminoacylation of tRNAs by aminoacyl-tRNA synthetases (ARSs) is a central reaction in biology. Multiple regulatory pathways use the aminoacylation status of cytosolic tRNAs to monitor and regulate metabolism. The existence of equivalent regulatory networks within the mitochondria is unknown. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.celrep.2019.03.022DOI Listing

Tungiasis.

N Engl J Med 2019 Apr;380(14):e19

Fluminense Federal University, Rio de Janeiro, Brazil

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1056/NEJMicm1810588DOI Listing
April 2019
5 Reads

Connexin 43 plays an important role in the transformation of cholangiocytes with Clonochis sinensis excretory-secretory protein and N-nitrosodimethylamine.

PLoS Negl Trop Dis 2019 Apr 3;13(4):e0006843. Epub 2019 Apr 3.

Department of Parasitology and Tropical Medicine and Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul, Republic of Korea.

Background: Clonorchis sinensis is a group I bio-carcinogen responsible for cholangiocarcinoma (CHCA) in humans. However, the mechanism by which C. sinensis promotes carcinogenesis is unclear. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1371/journal.pntd.0006843DOI Listing
April 2019
3 Reads

Functional Coupling of K+-Cl- Cotransporter (KCC) to GABA-Gated Cl- Channels in the Central Nervous System of Drosophila melanogaster leads to altered drug sensitivities.

ACS Chem Neurosci 2019 Apr 3. Epub 2019 Apr 3.

GABAergic signaling is the cornerstone for fast synaptic inhibition of neural signaling in arthropods and mammals and is the molecular target for insecticides and pharmaceuticals, respectively. The K+-Cl- cotransporter (KCC) is the primary mechanism by which mature neurons maintain low intracellular Cl- concentration, yet the fundamental physiology, comparative physiology, and toxicological relevance of insect KCC is understudied. Considering this, we employed electrophysiological, genetic, and pharmacological methods to characterize the physiological underpinnings of KCC function to the Drosophila CNS. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1021/acschemneuro.8b00697DOI Listing

The composition and abundance of bacterial communities residing in the gut of Glossina palpalis palpalis captured in two sites of southern Cameroon.

Parasit Vectors 2019 Apr 2;12(1):151. Epub 2019 Apr 2.

INTERTRYP, Institut de Recherche pour le Développement, University of Montpellier, Montpellier, France.

Background: A number of reports have demonstrated the role of insect bacterial flora on their host's physiology and metabolism. The tsetse host and vector of trypanosomes responsible for human sleeping sickness (human African trypanosomiasis, HAT) and nagana in animals (African animal trypanosomiasis, AAT) carry bacteria that influence its diet and immune processes. However, the mechanisms involved in these processes remain poorly documented. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s13071-019-3402-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6444424PMC
April 2019
3 Reads

Tick-borne pathogen detection in midgut and salivary glands of adult Ixodes ricinus.

Parasit Vectors 2019 Apr 2;12(1):152. Epub 2019 Apr 2.

UMR BIPAR, Animal Health Laboratory, INRA, ANSES, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France.

Background: The tick midgut and salivary glands represent the primary organs for pathogen acquisition and transmission, respectively. Specifically, the midgut is the first organ to have contact with pathogens during the blood meal uptake, while salivary glands along with their secretions play a crucial role in pathogen transmission to the host. Currently there is little data about pathogen composition and prevalence in Ixodes ricinus midgut and salivary glands. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s13071-019-3418-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6444572PMC

Temporal and spatial detection of Candidatus Liberibacter asiaticus putative effector transcripts during interaction with Huanglongbing-susceptible, -tolerant, and -resistant citrus hosts.

BMC Plant Biol 2019 Apr 2;19(1):122. Epub 2019 Apr 2.

U.S. Horticultural Research Laboratory, Agricultural Research Service, United States Department of Agriculture, Fort Pierce, FL, USA.

Background: Citrus Huanglongbing (HLB) is a bacterial disease with high economic significance. The associated agent Candidatus Liberibacter asiaticus is a fastidious, phloem-limited, intracellular bacterium that is transmitted by an insect vector the Asian citrus psyllid (ACP). The genome of Ca. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s12870-019-1703-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6444692PMC

Species Diversity and Seasonal Distribution of Hard Ticks (Acari: Ixodidae) Infesting Mammalian Hosts in Various Districts of Riyadh Province, Saudi Arabia.

J Med Entomol 2019 Apr 2. Epub 2019 Apr 2.

Department of Zoonotic Disease, Veterinary Research Division, National Research Centre, Dokki, Giza, Egypt.

Hard ticks are among the most important blood sucking arthropods that transmit pathogens to humans and animals. This study was designed to determine prevalence, mapping, geographical distribution, and seasonal activity of hard tick species infesting the most common domestic and wild mammals in various districts of Riyadh Province, Saudi Arabia, during the period January to December 2017. In total, 10,832 adult hard ticks were collected from the bodies of 8,435 animals belonging to 18 different mammalian species. Read More

View Article

Download full-text PDF

Source
https://academic.oup.com/jme/advance-article/doi/10.1093/jme
Publisher Site
http://dx.doi.org/10.1093/jme/tjz036DOI Listing
April 2019
9 Reads
1.953 Impact Factor

Phasing in heterochromatin during development.

Genes Dev 2019 04;33(7-8):379-381

Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, North Carolina 27599, USA.

Constitutive heterochromatin is a prevalent feature of eukaryotic genomes important for promoting cell differentiation and maintaining genome stability. During animal reproduction, constitutive heterochromatin is disassembled in gametes prior to formation of the zygote and then subsequently re-established as development ensues and cells differentiate. Despite progress in understanding the mechanisms that maintain heterochromatin in differentiated cell types, how constitutive heterochromatin is assembled de novo during early development remains poorly understood. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1101/gad.324731.119DOI Listing

GABA as a Neurotransmitter in Gastropod Molluscs.

Authors:
Mark W Miller

Biol Bull 2019 04 16;236(2):144-156. Epub 2019 Jan 16.

The neurotransmitter gamma-aminobutyric acid (GABA) is widely distributed in the mammalian central nervous system, where it acts as a major mediator of synaptic inhibition. GABA also serves as a neurotransmitter in a range of invertebrate phyla, including arthropods, echinoderms, annelids, nematodes, and platyhelminthes. This article reviews evidence supporting the neurotransmitter role of GABA in gastropod molluscs, with an emphasis on its presence in identified neurons and well-characterized neural circuits. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1086/701377DOI Listing
April 2019
1 Read

Ultrastructure and cuticle formation of the carapace in the myodocopan ostracod exemplified by Euphilomedes japonica (Crustacea: Ostracoda).

J Morphol 2019 Apr 1. Epub 2019 Apr 1.

Department of Medicine, School of Medicine, International University of Health and Welfare, Narita Campus, Narita City, Chiba, Japan.

The ultrastructure and formation of the cuticle of a myodocopan ostracod, Euphilomedes japonica, are investigated utilizing scanning and transmission electron microscopy. The outer lamella cuticle consists of four layers; epicuticle, exocuticle, endocuticle, and membranous layer like in the cuticle of other arthropods. The exocuticle and endocuticle are well-calcified and the organic matrix develops within the both cuticles. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/jmor.20985DOI Listing
April 2019
1 Read

Meta-analysis reveals that pollinator functional diversity and abundance enhance crop pollination and yield.

Nat Commun 2019 04 1;10(1):1481. Epub 2019 Apr 1.

NERC Centre for Ecology and Hydrology, Crowmarsh Gifford, Wallingford, Oxfordshire, OX10 8BB, UK.

How insects promote crop pollination remains poorly understood in terms of the contribution of functional trait differences between species. We used meta-analyses to test for correlations between community abundance, species richness and functional trait metrics with oilseed rape yield, a globally important crop. While overall abundance is consistently important in predicting yield, functional divergence between species traits also showed a positive correlation. Read More

View Article

Download full-text PDF

Source
http://www.nature.com/articles/s41467-019-09393-6
Publisher Site
http://dx.doi.org/10.1038/s41467-019-09393-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6443707PMC
April 2019
5 Reads

A study of the extraordinarily strong and tough silk produced by bagworms.

Nat Commun 2019 04 1;10(1):1469. Epub 2019 Apr 1.

Silk Materials Research Unit, National Agriculture and Food Research Organization (NARO), 1-2 Owashi, Tsukuba, Ibaraki, 305-8634, Japan.

Global ecological damage has heightened the demand for silk as 'a structural material made from sustainable resources'. Scientists have earnestly searched for stronger and tougher silks. Bagworm silk might be a promising candidate considering its superior capacity to dangle a heavy weight, summed up by the weights of the larva and its house. Read More

View Article

Download full-text PDF

Source
http://www.nature.com/articles/s41467-019-09350-3
Publisher Site
http://dx.doi.org/10.1038/s41467-019-09350-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6443776PMC
April 2019
8 Reads

The Natural History of Teneurins: A Billion Years of Evolution in Three Key Steps.

Authors:
Ron Wides

Front Neurosci 2019 15;13:109. Epub 2019 Mar 15.

The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.

The entire evolutionary history of the animal gene family, Teneurin, can be summed up in three key steps, plus three salient footnotes. In a shared ancestor of all bilaterians, the first step began with gene fusions that created a protein with an amino-terminal intracellular domain bridged via a single transmembrane helix to extracellular EGF-like domains. This first step was completed with a further gene fusion: an additional carboxy-terminal stretch of about 2000 amino acids (aa) was adopted, as-a-whole, from bacteria. Read More

View Article

Download full-text PDF

Source
https://www.frontiersin.org/article/10.3389/fnins.2019.00109
Publisher Site
http://dx.doi.org/10.3389/fnins.2019.00109DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6428715PMC
March 2019
4 Reads