35,160 results match your criteria Arthropod Structure & Development[Journal]


A crabs' high-order brain center resolved as a mushroom body-like structure.

J Comp Neurol 2020 Jun 2. Epub 2020 Jun 2.

IFIBYNE, UBA-CONICET, Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina.

The hypothesis of a common origin for high-order memory centers in bilateral animals presents the question of how different brain structures, such as the vertebrate hippocampus and the arthropod mushroom bodies, are both structurally and functionally comparable. Obtaining evidence to support the hypothesis that crustaceans possess structures equivalent to the mushroom bodies that play a role in associative memories has proved challenging. Structural evidence supports that the hemiellipsoid bodies of hermit crabs, crayfish and lobsters, spiny lobsters, and shrimps are homologous to insect mushroom bodies. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/cne.24960DOI Listing

Modeling Aceria tosichella biotype distribution over geographic space and time.

PLoS One 2020 29;15(5):e0233507. Epub 2020 May 29.

Department of Entomology, Kansas State University, Manhattan, Kansas, United States of America.

The wheat curl mite, Aceria tosichella Keifer, one of the most destructive arthropod pests of bread wheat worldwide, inflicts significant annual reductions in grain yields. Moreover, A. tosichella is the only vector for several economically important wheat viruses in the Americas, Australia and Europe. Read More

View Article

Download full-text PDF

Source
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0233507PLOS

Comparison of wormlion behavior under man-made and natural shelters: urban wormlions more strongly prefer shaded, fine-sand microhabitats, construct larger pits and respond faster to prey.

Curr Zool 2020 Feb 1;66(1):91-98. Epub 2019 Mar 1.

School of Zoology, Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel.

Urban habitats differ from their natural surroundings in various aspects, such as a higher temperature and a distinct species composition. It is therefore not surprising that animal behavior too differs between these habitat types. We studied the foraging and habitat selection behavior of a pit-building predator, a wormlion, originating from either an urban or a more natural site. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/cz/zoz006DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7245013PMC
February 2020

Functional Insights From the Evolutionary Diversification of Big Defensins.

Front Immunol 2020 30;11:758. Epub 2020 Apr 30.

IHPE, Université de Montpellier, CNRS, Ifremer, Université de Perpignan Via Domitia, Montpellier, France.

Big defensins are antimicrobial polypeptides believed to be the ancestors of β-defensins, the most evolutionary conserved family of host defense peptides (HDPs) in vertebrates. Nevertheless, big defensins underwent several independent gene loss events during animal evolution, being only retained in a limited number of phylogenetically distant invertebrates. Here, we explore the evolutionary history of this fascinating HDP family and investigate its patchy distribution in extant metazoans. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3389/fimmu.2020.00758DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7203481PMC

Effects of community composition on plant-pollinator interaction networks across a spatial gradient of oak-savanna habitats.

Oecologia 2020 May 13;193(1):211-223. Epub 2020 May 13.

Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, V5A 1S6, Canada.

Distance between habitats may impact the composition and corresponding interactions between trophic levels. Mutualistic networks, such as those of plants and pollinators tend to have a core set of properties that often relate to the resilience of the community, or the ability of the community to retain function and structure after a disturbance. Furthermore, network structure is highly dependent on the number of specialists and generalists; however, it is unclear how different groups of species with various life-history strategies influence network structure. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00442-020-04661-5DOI Listing

No Tömösváry organ in flat backed millipedes (Diplopoda, Polydesmida).

Zookeys 2020 28;930:103-115. Epub 2020 Apr 28.

Institute of Evolutionary Biology and Ecology, University of Bonn, An der Immenburg 1, 53121, Bonn, Germany University of Bonn Bonn Germany.

The Tömösváry organ is a sensory structure of the head in myriapods and some other terrestrial arthropods. Due to its variable shape, size, and position in millipedes (Diplopoda) the Tömösváry organ is commonly used as diagnostic character in taxonomic descriptions and often included in phylogenetic analyses. For the Polydesmida, the largest millipede order, the Tömösváry organ is inconsistently stated as being either absent or present as a pear-shaped pit covered by a membrane or cuticular disc. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3897/zookeys.930.48438DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7200888PMC

External morphology of the abdominal glands in Asopinae (Hemiptera: Heteroptera: Pentatomidae).

Arthropod Struct Dev 2020 May 5;57:100946. Epub 2020 May 5.

Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Agronomia, Porto Alegre, RS, 91501-970, Brasil.

Heteropterans communicate chemically through thoracic or abdominal glandular complexes. The dorso-abdominal scent glands (DAGs) are externalized by cuticular specialized structures forming the external scent efferent system (SES). Different groups in Heteroptera present other glands, such as the Asopinae (Pentatomidae), whose males can have ventral abdominal pheromonal glands externalized by cuticular modifications, called glandular patches (GPs). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.asd.2020.100946DOI Listing

Crystal structures of the RNA triphosphatase from Trypanosoma cruzi provide insights into how it recognizes the 5' end of the RNA substrate.

J Biol Chem 2020 May 7. Epub 2020 May 7.

Faculty of Medicine, University of Tsukuba, Japan.

RNA triphosphatase catalyzes the first step in mRNA cap formation, hydrolysis of the terminal phosphate from the nascent mRNA transcript. The RNA triphosphatase from the protozoan parasite Trypanosoma cruzi, TcCet1, belongs to the family of triphosphate tunnel metalloenzymes (TTMs). TcCet1 is a promising antiprotozoal drug target because the mechanism and structure of the protozoan RNA triphosphatases are completely different from those of the RNA triphosphatases found in mammalian and arthropod hosts. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1074/jbc.RA119.011811DOI Listing

The high-resolution crystal structure of lobster hemocyanin shows its enzymatic capability as a phenoloxidase.

Arch Biochem Biophys 2020 May 5;688:108370. Epub 2020 May 5.

Laboratory of Applied Structural Biology, Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan; Laboratory of Metabolic Science of Forest Plants and Microorganisms, Research Institute for Sustainable Humanosphere and Laboratory of Structural Energy Bioscience, Institue of Advance Energy, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan. Electronic address:

Hemocyanin (Hc) and phenoloxidase (PO) are members of the type 3 copper protein family. Although arthropod Hc and PO exhibit similar three-dimensional structures of the copper-containing active site, Hc functions as an oxygen transport protein, showing minimal or no phenoloxidase activity. Here, we present the crystal structure of the oxy form of Hc from Panulirus japonicus (PjHc) at 1. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.abb.2020.108370DOI Listing

Novel genome sequences of cell-fusing agent virus allow comparison of virus phylogeny with the genetic structure of populations.

Virus Evol 2020 Jan 29;6(1):veaa018. Epub 2020 Apr 29.

Insect-Virus Interactions Unit, Department of Virology, Institut Pasteur, UMR2000, CNRS, 28 rue du Docteur Roux, 75015 Paris, France.

Flaviviruses encompass not only medically relevant arthropod-borne viruses (arboviruses) but also insect-specific flaviviruses (ISFs) that are presumably maintained primarily through vertical transmission in the insect host. Interestingly, ISFs are commonly found infecting important arbovirus vectors such as the mosquito . Cell-fusing agent virus (CFAV) was the first described ISF of mosquitoes more than four decades ago. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/ve/veaa018DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7189118PMC
January 2020

Polymorphisms in GSTE2 is associated with temephos resistance in Aedes aegypti.

Pestic Biochem Physiol 2020 May 24;165:104464. Epub 2019 Oct 24.

Department of Entomology, Instituto Aggeu Magalhães, FIOCRUZ, Recife, PE 50740-465, Brazil.

The glutathione S-transferases (GSTs) are enzymes involved in several distinct biological processes. In insects, the GSTs, especially delta and epsilon classes, play a key role in the metabolism of xenobiotics used to control insect populations. Here, we investigated its potential role in temephos resistance, examining the GSTE2 gene from susceptible (RecL) and resistant (RecR) strains of the mosquito Aedes aegypti, vector for several pathogenic arboviruses. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.pestbp.2019.10.002DOI Listing

Rice virus release from the planthopper salivary gland is independent of plant tissue recognition by the stylet.

Pest Manag Sci 2020 May 1. Epub 2020 May 1.

Institute of Plant Protection, Jiangsu Key Laboratory for Food Quality and Safety - State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, China.

Background: The transmission of plant viruses by arthropod vectors is closely related to feeding behavior. For persistently transmitted viruses, virus release means that virus moves through the salivary gland microvillus barriers of insects into plant via the stylet. However, whether virus release is dependent on plant tissue and component recognition by the stylet is unclear. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/ps.5876DOI Listing
May 2020
2.694 Impact Factor

Functional amyloids of eukaryotes: criteria, classification, and biological significance.

Curr Genet 2020 Apr 30. Epub 2020 Apr 30.

Vavilov Institute of General Genetics, St. Petersburg Branch, Russian Academy of Sciences, 199034, St. Petersburg, Russian Federation.

Amyloids cause incurable diseases in humans and animals and regulate vital processes in bacteria and eukaryotes. Amyloid fibrils have unique properties, such as amazing resistance to a variety of agents, mechanical strength, and elasticity, and it is not surprising that in the course of evolution eukaryotes have learned to employ amyloid structures to regulate various vital processes. Proteins exhibiting amyloid properties have been detected in lower eukaryotes and in diverse cell lines of arthropods and vertebrates. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00294-020-01079-7DOI Listing

Epidermal Cell Surface Structure and Chitin-Protein Co-assembly Determine Fiber Architecture in the Locust Cuticle.

ACS Appl Mater Interfaces 2020 May 26. Epub 2020 May 26.

Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany.

The geometrical similarity of helicoidal fiber arrangement in many biological fibrous extracellular matrices, such as bone, plant cell wall, or arthropod cuticle, to that of cholesteric liquid mesophases has led to the hypothesis that they may form passively through a mesophase precursor rather than by direct cellular control. In search of direct evidence to support or refute this hypothesis, here, we studied the process of cuticle formation in the tibia of the migratory locust, , where daily growth layers arise by the deposition of fiber arrangements alternating between unidirectional and helicoidal structures. Using focused ion beam/scanning electron microscopy (FIB/SEM) volume imaging and scanning X-ray scattering, we show that the epidermal cells determine an initial fiber orientation, from which the final architecture emerges by the self-organized co-assembly of chitin and proteins. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1021/acsami.0c04572DOI Listing

Do Development and Diet Determine the Degree of Cannibalism in Insects? To Eat or Not to Eat Conspecifics.

Insects 2020 Apr 14;11(4). Epub 2020 Apr 14.

Center for Research in Mediterranean Intensive Agrosystems and Agrifood Bioechnology (CIAMBITAL), Agrifood Campus of International Excellence (CEIA3), University of Almeria, Ctra. Sacramento, s/n, 04120 La Cañada, Spain.

Cannibalism in insects plays an important role in ecological relationships. Nonetheless, it has not been studied as extensively as in other arthropods groups (e.g. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3390/insects11040242DOI Listing

Investigation of an Elevational Gradient Reveals Strong Differences Between Bacterial and Eukaryotic Communities Coinhabiting Nepenthes Phytotelmata.

Microb Ecol 2020 Apr 14. Epub 2020 Apr 14.

Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford St., Cambridge, MA, 02138, USA.

Elevation is an important determinant of ecological community composition. It integrates several abiotic features and leads to strong, repeatable patterns of community structure, including changes in the abundance and richness of numerous taxa. However, the influence of elevational gradients on microbes is understudied relative to plants and animals. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00248-020-01503-yDOI Listing

Global analysis of multi-host and multi-vector epidemic models.

J Math Anal Appl 2019 Jul 21;475(2):1532-1553. Epub 2019 Mar 21.

Department of Mathematics, California State University, Fullerton, CA 92831, USA.

We formulate a multi-group and multi-vector epidemic model in which hosts' dynamics is captured by staged-progression framework and the dynamics of vectors is captured by an framework. The proposed model describes the evolution of a class of zoonotic infections where the pathogen is shared by host species and transmitted by arthropod vector species. In each host, the infectious period is structured into stages with a corresponding infectiousness parameter to each vector species. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jmaa.2019.03.030DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7126432PMC

Avermectin stress varied structure and function of gut microbial community in Lymantria dispar asiatica (Lepidoptera: Lymantriidae) larvae.

Pestic Biochem Physiol 2020 Mar 25;164:196-202. Epub 2020 Jan 25.

College of Life Science, Northeast Forestry University, Harbin 150040, China. Electronic address:

Lymantria dispar asiatica is a globally distributed herbivorous pest. Avermectin is a highly effective, broad-spectrum insecticide. In this study, fourth instar L. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.pestbp.2020.01.013DOI Listing

Identification and characterization of the vasa gene in the diamondback moth, Plutella xylostella.

Insect Biochem Mol Biol 2020 Apr 10;122:103371. Epub 2020 Apr 10.

State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture, Fuzhou, 350002, China. Electronic address:

Vasa is an ATP-dependent RNA helicase, participating in multiple biological processes. It has been widely used as a germ cell marker and its promoter has become a key component of several genetic pest control systems. Here we present the vasa gene structure and its promoter activity in Plutella xylostella, one of the most destructive pests of cruciferous crops. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ibmb.2020.103371DOI Listing

Aphid growth and reproduction on plants with altered sterol profiles: Novel insights using Arabidopsis mutant and overexpression lines.

J Insect Physiol 2020 May - Jun;123:104054. Epub 2020 Apr 7.

Department of Entomology, Texas A&M University, College Station, TX 77843, United States; Ecology and Evolutionary Biology Doctoral Program, Texas A&M University, College Station, TX 77843, United States. Electronic address:

Sterols are essential membrane components and are critical for many physiological processes in all eukaryotes. Insects and other arthropods are sterol auxotrophs that typically rely on a dietary source of sterols. Herbivorous insects generally obtain sterols from plants and then metabolize them into cholesterol, the dominant sterol in most insects. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jinsphys.2020.104054DOI Listing

Plant-pollinator network structural properties differentially affect pollen transfer dynamics and pollination success.

Oecologia 2020 Apr 9;192(4):1037-1045. Epub 2020 Apr 9.

East Tennessee State University, Johnson City, TN, 37614, USA.

Plant-pollinator network studies have uncovered important generalities in the structure of these communities, rapidly advancing our understanding of the underlying drivers of such a structure. In spite of this, however, it is still unclear how changes in structural network properties influence overall plant pollination success. One key limitation is the lack of information on the relationship between network structural properties and aspects of pollination and plant reproductive success. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00442-020-04637-5DOI Listing

Climate change-driven elevational changes among boreal nocturnal moths.

Oecologia 2020 Apr 8;192(4):1085-1098. Epub 2020 Apr 8.

Ecology and Genetics Research Unit, University of Oulu, PO Box 3000, FI-90014, Oulu, Finland.

Climate change has shifted geographical ranges of species northwards or to higher altitudes on elevational gradients. These changes have been associated with increases in ambient temperatures. For ectotherms in seasonal environments, however, life history theory relies largely on the length of summer, which varies somewhat independently of ambient temperature per se. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00442-020-04632-wDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7165148PMC

A satellite repeat-derived piRNA controls embryonic development of Aedes.

Nature 2020 04 1;580(7802):274-277. Epub 2020 Apr 1.

Department of Medical Microbiology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands.

Tandem repeat elements such as the diverse class of satellite repeats occupy large parts of eukaryotic chromosomes, mostly at centromeric, pericentromeric, telomeric and subtelomeric regions. However, some elements are located in euchromatic regions throughout the genome and have been hypothesized to regulate gene expression in cis by modulating local chromatin structure, or in trans via transcripts derived from the repeats. Here we show that a satellite repeat in the mosquito Aedes aegypti promotes sequence-specific gene silencing via the expression of two PIWI-interacting RNAs (piRNAs). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/s41586-020-2159-2DOI Listing

Contrasting effects of plant diversity on β- and γ-diversity of grassland invertebrates.

Ecology 2020 Apr 1:e03057. Epub 2020 Apr 1.

Department of Ecology and Ecosystem Management, Technical University of Munich, Freising, Germany.

The diversity of primary producers strongly affects the structure and diversity of species assemblages at other trophic levels. However, limited knowledge exists of how plant diversity effects at small spatial scales propagate to consumer communities at larger spatial scales. We assessed arthropod community β and γ-diversity in response to experimentally manipulated plant community richness in two long-term grassland biodiversity experiments (Jena, Germany and Cedar Creek, USA) replicated over two years. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/ecy.3057DOI Listing

Morphological ontogeny of Trichoribates naltschicki (Acari: Oribatida: Ceratozetidae).

Zootaxa 2019 Dec 31;4717(1):zootaxa.4717.1.6. Epub 2019 Dec 31.

Department of Evolutionary Biology, Faculty of Natural Sciences, Kazimierz Wielki University, Bydgoszcz, Poland.

The morphological ontogeny of Trichoribates naltschicki (Shaldybina, 1971) is described and illustrated, based on juvenile and adult specimens from a horse pasture in the steppe of northern Mongolia (Bulgan Province). The juveniles of T. naltschicki lack a humeral organ and a dark pigmented cuticle around the opisthonotal gland opening, which occur in some species of Trichoribatinae. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4717.1.6DOI Listing
December 2019

Morphological ontogeny, ecology and some biological parameters of Achipteria nitens (Acari: Oribatida: Achipteriidae).

Zootaxa 2019 Dec 31;4717(1):zootaxa.4717.1.5. Epub 2019 Dec 31.

Department of Evolutionary Biology, Faculty of Biological Sciences, Kazimierz Wielki University, Bydgoszcz, Poland.

The morphological ontogeny of Achipteria nitens (Nicolet, 1855) from Crimea peninsula is redescribed and illustrated, and ecology and some biological parameters of this species are investigated. The larva of this species has short, thick and barbed setae in and of c-series, and anterior part of prodorsum reticulate, whereas the nymphs have most gastronotal setae of medium size and barbed, except for shorter c3, and shorter, thick and smooth p2 and p3. A key to the larva and nymphs of eight species of Achipteria Berlese, 1885 is provided. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4717.1.5DOI Listing
December 2019

New species of Acroneuria (Plecoptera: Perlidae) from central Vietnam.

Authors:
Zhi-Teng Chen

Zootaxa 2020 Jan 10;4722(1):zootaxa.4722.1.5. Epub 2020 Jan 10.

School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212004, China..

Three new species of Acroneuria Pictet, 1841, A. axana sp. nov. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4722.1.5DOI Listing
January 2020

A DNA-based description of a new carpenter moth species (Lepidoptera: Cossidae) from Morocco.

Zootaxa 2019 Dec 16;4711(2):zootaxa.4711.2.10. Epub 2019 Dec 16.

Altai State University, Lenina pr. 61, 656049, Barnaul, Russia. Tomsk State University, Lenina pr. 36, 634050, Tomsk, Russia..

We used a combination of morphological data (genitalia structure) and a molecular marker (a 658bp fragment of the COI gene) to demonstrate that carpenter moth populations from central and southern Morocco, previously identified as Cossus cossus (Linnaeus, 1758) based on external morphology, represent a new species, described herein as C. romantsovi Yakovlev Shapoval, sp. n. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4711.2.10DOI Listing
December 2019

Multilocus phylogeny of Gryllus field crickets (Orthoptera: Gryllidae: Gryllinae) utilizing anchored hybrid enrichment.

Zootaxa 2020 Mar 12;4750(3):zootaxa.4750.3.2. Epub 2020 Mar 12.

Department of Biology, California State University Northridge, 18111 Nordhoff Street, Northridge, CA 91330-8303, USA..

We present the first comprehensive molecular phylogeny of Gryllus field cricket species found in the United States and Canada, select additional named Gryllus species found in Mexico and the Bahamas, plus the European field cricket G. campestris Linnaeus and the Afro-Eurasian cricket G. bimaculatus De Geer. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4750.3.2DOI Listing

Review of Notacanthella Jacobus amp; McCafferty, 2008 (Ephemeroptera: Ephemerellidae) in Thailand, with the redescription of Notacanthella commodema (Allen, 1971).

Zootaxa 2020 Feb 7;4731(3):zootaxa.4731.3.9. Epub 2020 Feb 7.

Animal Systematics and Ecology Speciality Research Unit (ASESRU), Department of Zoology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand..

Larvae of the Notacanthella Jacobus McCafferty, 2008 species N. commodema (Allen, 1971) and N. quadrata (Kluge Zhou, 2004) from Thailand are compared and redescribed. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4731.3.9DOI Listing
February 2020

A new species of the genus Parapachymorpha Brunner von Wattenwyl, 1893 (Phasmida, Phasmatidae, Clitumninae) from Laos.

Zootaxa 2020 Feb 11;4732(1):zootaxa.4732.1.10. Epub 2020 Feb 11.

Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Songdo-dong, Incheon, 22012, South Korea..

Parapachymorpha is one of eight genera within the tribe Medaurini of subfamily Clitumninae (Phasmatidae). It was established by Brunner von Wattenwyl (1893), with the type species Parapachymorpha nigra by subsequent designation of Kirby (1904), from Myanmar. Species of this genus are widely distributed in oriental tropics (Laos, China, Thailand, Myanmar, Vietnam and Cambodia), with only 11 known species in the world (Brock et al. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4732.1.10DOI Listing
February 2020

The complete mitochondrial genome of Amphinemura claviloba (Wu, 1973) (Plecoptera: Nemouridae).

Zootaxa 2020 Feb 13;4732(3):zootaxa.4732.3.8. Epub 2020 Feb 13.

Department of Plant Protection, Henan Institute of Science and Technology, Xinxiang, Henan, 453003 China..

We sequenced the complete mitochondrial genome (mitogenome) of a stonefly, Amphinemura claviloba (Wu, 1973), of the family Nemouridae (Insecta: Plecoptera). The mitogenome was 15,707 bp long and contained typical 37 genes with an A+T content of 68.5%. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4732.3.8DOI Listing
February 2020

Notes on the tribe Petrognathini Blanchard, 1845 from China, with description of a new species from Yunnan (Coleoptera, Cerambycidae, Lamiinae).

Zootaxa 2020 Feb 13;4732(3):zootaxa.4732.3.7. Epub 2020 Feb 13.

Room 401, No. 2, Lane 155, Lianhua South Road, Shanghai, 201100 China.

Ithocritus ruber (Hope, 1839), the type species of the genus Ithocritus Lacordaire, 1872 is reinvestigated, and a partially sympatric species, Ithocritus similis Bi Lin, sp. nov. (, Xiāng sì duǎn bǐng tiān niú), is described. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4732.3.7DOI Listing
February 2020

Hoplothrips species recorded from China (Thysanoptera, Phlaeothripidae), with one new species from Yunnan.

Zootaxa 2020 Mar 31;4758(3):zootaxa.4758.3.12. Epub 2020 Mar 31.

Australian National Insect Collection, CSIRO, Canberra, Australia..

The genus Hoplothrips is the third most species-rich in the subfamily Phlaeothripinae (Mound et al. 2020), and currently comprises 131 species (ThripsWiki 2020). Most of these live on dead branches of woody angiosperm trees and are presumed to feed on fungal hyphae or their liquid breakdown products (Kobro Rafoss 2006). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4758.3.12DOI Listing

The complete mitochondrial genome of Zicrona caerulea (Linnaeus) (Hemiptera: Pentatomidae: Asopinae) and its phylogenetic implications.

Zootaxa 2020 Mar 4;4747(3):zootaxa.4747.3.8. Epub 2020 Mar 4.

Department of Entomology, Shanxi Agricultural University, Taigu, Shanxi 030801, China.

Zicrona caerulea (Linnaeus, 1758) is a cosmopolitan stink bug species, which belongs to the predatory subfamily Asopinae. In this study, the complete mitochondrial genome of Zicrona caerulea from Shanxi, China was sequenced for the first time, using next generation sequencing. The mitogenome was found to be 15,479 bp in length. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4747.3.8DOI Listing

Nesting biology and distribution of Stenancistrocerus (Paratropancistrocerus) obstrictus (Morawitz, 1895) (Hymenoptera: Vespidae: Eumeninae).

Zootaxa 2020 Jan 8;4718(4):zootaxa.4718.4.12. Epub 2020 Jan 8.

Vyazemsky Karadag Scientific Station-Nature Reserve of RAS-Branch of Kovalevsky Institute of Biology of the Southern Seas of RAS, Nauki str. 24, Kurortnoye vill., 298188 Feodosiya, Russia..

Nesting of Stenancistrocerus obstrictus was studied in the Republic of Dagestan, Russia. Ten nests were observed, six of them were dissected and their structure was studied. The nests were located in preexisting holes in a clayey cliff. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4718.4.12DOI Listing
January 2020

A review of Spathipheromyia (Diptera: Muscidae) from Argentina with the description of an extra-large new species.

Zootaxa 2019 Nov 27;4701(2):zootaxa.4701.2.3. Epub 2019 Nov 27.

Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Av. A. Gallardo 470, C1405DJR, Buenos Aires, Argentina..

Spathipheromyia Bigot is a small group of predaceous muscids endemic of the Neotropical region. Currently, the genus includes 14 species of which only Spathipheromyia atra Malloch, 1934, S. magellani Malloch, 1934 and S. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4701.2.3DOI Listing
November 2019

Taito adrik, a new harvestman species from the Área de Conservación Privada Panguana, Peruvian Amazonia (Opiliones: Laniatores: Cosmetidae).

Zootaxa 2020 Jan 28;4729(1):zootaxa.4729.1.7. Epub 2020 Jan 28.

SNSB, Bavarian State Collection of Zoology (ZSM), Münchhausenstr. 21, 81247 Munich, Germany.

A new species of the cosmetid harvestman genus Taito Kury Barros 2014 is described from the Área de Conservación Privada (ACP) Panguana, Peruvian Amazonia, which extends the distribution range of the genus to the south-west. The herein described species Taito adrik sp. nov. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4729.1.7DOI Listing
January 2020

A new species of the genus Kodaianellissus Wang, Bourgoin amp; Zhang (Hemiptera: Issidae) with morphological and molecular data.

Zootaxa 2020 Feb 5;4731(2):zootaxa.4731.2.6. Epub 2020 Feb 5.

Key Laboratory of Plant Protection Resources and Pest Management of the Ministry of Education, Entomological Museum, Northwest AF University, Yangling, Shaanxi 712100, China.

Kodaianellissus gibbusis sp. nov. is described from Rawlakot, Azad Jammu Kashmir (Pakistan), which is first record of the genus Kodaianellissus Wang, Bourgoin Zhang, 2017 from the country. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.11646/zootaxa.4731.2.6DOI Listing
February 2020

Myriapod haemocyanin: the first three-dimensional reconstruction of and preliminary structural analysis of .

Open Biol 2020 Apr 1;10(4):190258. Epub 2020 Apr 1.

Laboratório Nacional de Nanotecnologia (LNNano), Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), CEP 13083-970, Campinas, Brazil.

Haemocyanins (Hcs) are copper-containing, respiratory proteins that occur in the haemolymph of many arthropod species. Here, we report the presence of Hcs in the chilopode Myriapoda, demonstrating that these proteins are more widespread among the Arthropoda than previously thought. The analysis of transcriptome of reveals the presence of two distinct subunits of Hc, where the signal peptide is present, and six of prophenoloxidase (PPO), where the signal peptide is absent, in the 75 kDa range. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1098/rsob.190258DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7241075PMC

Anti-parasitic effects and toxicity of formalin on the parasite Mesanophrys sp. of the swimming crab Portunus trituberculatus.

Exp Parasitol 2020 May 21;212:107886. Epub 2020 Mar 21.

Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture, School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China. Electronic address:

In aquaculture of the swimming crab Portunus trituberculatus, massive deaths have been recorded in the winter months due to infection with a novel emerging parasite, Mesanophrys sp. However, no information was available regarding the prevention and control of this particular parasite. Therefore, the present study was conducted to evaluate the anti-parasitic efficacy and toxicity of formalin against the Mesanophrys sp. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.exppara.2020.107886DOI Listing

Hemoglobin in Arthropods-Daphnia as a Model.

Authors:
Bettina Zeis

Subcell Biochem 2020 ;94:163-194

Institut für Zoophysiologie, Westfälische Wilhelms-Universität Münster, Schlossplatz 8, 48149, Münster, Germany.

Hemoglobin is the respiratory protein of many arthropods, enhancing the oxygen transport capacity of the hemolymph. One example, that has been subject of extensive studies, is the hemoglobin of the crustacean genus Daphnia. Here the characteristics of this oxygen binding protein are reviewed. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/978-3-030-41769-7_6DOI Listing

Insect Defense Proteins and Peptides.

Subcell Biochem 2020 ;94:81-121

Department of Immunobiology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Lublin, Poland.

The composition of insect hemolymph can change depending on many factors, e.g. access to nutrients, stress conditions, and current needs of the insect. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/978-3-030-41769-7_4DOI Listing

The Anti-lipopolysaccharide Factors in Crustaceans.

Authors:
Shihao Li Fuhua Li

Subcell Biochem 2020 ;94:63-80

Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.

Anti-lipopolysaccharide factors (ALFs) are a type of antimicrobial peptide (AMP) which show broad-spectrum antimicrobial activity against Gram-positive bacteria, Gram-negative bacteria, fungi and viruses. In this chapter, we review the discovery and classification of this kind of antimicrobial peptide in crustaceans. The structure and function, as well as the mechanism of antibacterial and antiviral activities of ALFs will be summarized and discussed. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/978-3-030-41769-7_3DOI Listing

High-polyphenol extracts from Sorghum bicolor attenuate replication of Legionella pneumophila within RAW 264.7 macrophages.

FEMS Microbiol Lett 2020 Apr;367(7)

Division of Biology, Kansas State University, 1717 Claflin Road, Manhattan, Kansas, 66506 USA.

Polyphenols derived from a variety of plants have demonstrated antimicrobial activity against diverse microbial pathogens. Legionella pneumophila is an intracellular bacterial pathogen that opportunistically causes a severe inflammatory pneumonia in humans, called Legionnaires' Disease, via replication within macrophages. Previous studies demonstrated that tea polyphenols attenuate L. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/femsle/fnaa053DOI Listing
April 2020
2.121 Impact Factor

Structure of SWI/SNF chromatin remodeller RSC bound to a nucleosome.

Nature 2020 03 11;579(7799):448-451. Epub 2020 Mar 11.

Max Planck Institute for Biophysical Chemistry, Department of Molecular Biology, Göttingen, Germany.

Chromatin-remodelling complexes of the SWI/SNF family function in the formation of nucleosome-depleted, transcriptionally active promoter regions (NDRs). In the yeast Saccharomyces cerevisiae, the essential SWI/SNF complex RSC contains 16 subunits, including the ATP-dependent DNA translocase Sth1. RSC removes nucleosomes from promoter regions and positions the specialized +1 and -1 nucleosomes that flank NDRs. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1038/s41586-020-2088-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7093204PMC

Homeodomain-interacting protein kinase (Hipk) plays roles in nervous system and muscle structure and function.

PLoS One 2020 18;15(3):e0221006. Epub 2020 Mar 18.

Centre for Cell Biology, Development and Disease, Simon Fraser University, Burnaby, Canada.

Homeodomain-interacting protein kinases (Hipks) have been previously associated with cell proliferation and cancer, however, their effects in the nervous system are less well understood. We have used Drosophila melanogaster to evaluate the effects of altered Hipk expression on the nervous system and muscle. Using genetic manipulation of Hipk expression we demonstrate that knockdown and over-expression of Hipk produces early adult lethality, possibly due to the effects on the nervous system and muscle involvement. Read More

View Article

Download full-text PDF

Source
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0221006PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7080231PMC

Vasa deferentia and associated structures of the male Panorpodes kuandianensis (Mecoptera: Panorpodidae).

Arthropod Struct Dev 2020 Mar 13;55:100926. Epub 2020 Mar 13.

College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China. Electronic address:

The male reproductive system may provide significant evidence for the taxonomic and phylogenetic analyses of insects. However, current knowledge of the male reproductive system in Mecoptera is mainly concentrated on the external genitalia, and is rarely involved in the internal reproductive system. Here, we investigated the morphology and the fine structure of the vasa deferentia and associated structures of the male reproductive system of Panorpodes kuandianensis Zhong et al. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.asd.2020.100926DOI Listing

Cryo-EM structure of a neuronal functional amyloid implicated in memory persistence in .

Science 2020 03;367(6483):1230-1234

Stowers Institute for Medical Research, Kansas City, MO 64110, USA.

How long-lived memories withstand molecular turnover is a fundamental question. Aggregates of a prion-like RNA-binding protein, cytoplasmic polyadenylation element-binding (CPEB) protein, is a putative substrate of long-lasting memories. We isolated aggregated CPEB, Orb2, from adult heads and determined its activity and atomic structure, at 2. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1126/science.aba3526DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182444PMC

Winter-Active Spider Fauna is Affected by Plantation Forest Type.

Environ Entomol 2020 Mar 11. Epub 2020 Mar 11.

MTA Centre for Ecological Research, Institute of Ecology and Botany, 'Lendület' Landscape and Conservation Ecology, Alkotmány u. 2-4, 2163 Vácrátót, Hungary.

Plantations of non-native trees for commercial use are common practice in Europe. They are known to have severe ecological impacts on arthropod fauna by altering microclimatic conditions and reducing microhabitat diversity. However, the effect of plantation tree species on winter-active fauna is relatively unknown. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/ee/nvaa025DOI Listing