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Insects (11):
Recent article
Insects
Abstract
We evaluated whether corridors increase the incidence of plant parasites. We found that corridor impacts varied with parasite dispersal mode. Connectivity provided by corridors increased incidence of biotically dispersed parasites (galls on Solidago odora) but not of abiotically dispersed parasites...
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PMID: 21905422
PDF is available here.
PDF is available here.
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Abstract
Abstract
DNA-based techniques have proved to be very useful methods to study trophic relationships between pests and their natural enemies. However, most predators are best defined as omnivores, and the identification of plant-specific DNA should also allow the identification of the plant spe...
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PMID: 21092379
PDF is available here.
PDF is available here.
Abstract
Quercetin, a flavonoid, is an inhibitor of P-glycoprotein-mediated efflux transport, and its oxidative metabolism is catalyzed by CYP enzymes. Thus, it is expected that the pharmacokinetics of both intravenous and oral doxorubicin can be changed by quercetin. The purpose of this study was to investig...
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PMID: 21544726
PDF is available here.
PDF is available here.
Ecological Applications (21)2 2011
Landscape structure influences modularity patterns in farm food webs: consequences for pest control.
Abstract
We applied a standardized approach across 20 farms to obtain well-resolved food webs to characterize network structure and explore how modularity changes in response to management (organic and conventional). All networks showed significantly higher modularity than random networks. Farm management ha...
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PMID: 21563581
PDF is available here.
PDF is available here.
Abstract
We report the expression of the N protein of the Araraquara Hantavirus in a Baculovirus Expression System, the use of this protein in IgM and IgG ELISA and comparison with the same antigen generated in E. coli. Results. The protein obtained, and purified in a nickel column, was effectively recognize...
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PMID: 21569341
PDF is available here.
PDF is available here.
Abstract
Expression of recombinant proteins in the baculovirus/insect cell expression system is employed because it enables post-translational protein modification and high yields of recombinant protein. The system is capable of facilitating the functional expression of many proteins - either secreted or int...
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PMID: 20978972
PDF is available here.
PDF is available here.
Abstract
The baculovirus vector systems has been extensively used for the expression of foreign gene products in insect and mammalian cells. New advances increase the possibilities and applications of the baculovirus expression system, which has the capability to express multiple genes simultaneously within a...
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PMID: 21485504
PDF is available here.
PDF is available here.
Abstract
We have used scanning electron microscopy to examine the vitelline membrane in hatching eggs of Oligoaeschna pryeri. We have assumed that the numerous openings seen on the micrographs are pores through the membrane.Results are expressed as means ± SD. The pore diameter, pore area and number per µm...
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PMID: 21445802
PDF is available here.
PDF is available here.
Abstract
Microbial Pathogenesis (49)6 2010
Abstract
These results demonstrate that rational design virulence factor is a potential strategy for strain improvement by genetic engineering.
Copyright © 2010. Published by Elsevier India Pvt Ltd....
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PMID: 20674735
PDF is available here.
PDF is available here.
Trends in Microbiology (18)12 2010
Abstract
Bacterial pathogens either hide from or modulate the host's immune response to ensure their survival. Photorhabdus is a potent insect pathogenic bacterium that uses entomopathogenic nematodes as vectors in a system that represents a useful tool for probing the molecular basis of immunity. During the...
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PMID: 21035345
PDF is available here.
PDF is available here.
Scientific American (303)6 2010
Abstract
Abstract
We report the 2.3-ångstrom crystal structure of the WRC and complementary mechanistic analyses. The structure shows that the activity-bearing VCA motif of WAVE is sequestered by a combination of intramolecular and intermolecular contacts within the WRC. Rac and kinases appear to destabilize a WRC e...
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PMID: 21107423
PDF is available here.
PDF is available here.
Abstract
The crystal structure of the neuropeptide proctolin (Arg-Tyr-Leu-Pro-Thr) is reported revealing the solid-state conformation of its molecules and their association in the crystal.
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PMID: 20838690
PDF is available here.
PDF is available here.
Abstract
The discovery of sulfoxaflor [N-[methyloxido[1-[6-(trifluoromethyl)-3-pyridinyl]ethyl]-λ(4)-sulfanylidene] cyanamide] resulted from an investigation of the sulfoximine functional group as a novel bioactive scaffold for insecticidal activity and a subsequent extensive structure-activity relationship...
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PMID: 21105655
PDF is available here.
PDF is available here.
Abstract
We must consider an extra, spatial dimension to the standard statistical model: the biological importance of a significant and well supported model with large effect sizes crucially depends on the configuration of habitat within the study area. We argue that mapping the outputs from statistical mode...
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PMID: 20961650
PDF is available here.
PDF is available here.
Abstract
We show experimentally the strength of the contribution of the seta surface architecture to superhydrophobicity by maintaining identical surface chemistry (thin and thick coating of the setae with polydimethylsiloxane). Atomic force microscopy-based force and adhesion measurements of single uncoated...
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PMID: 20417737
PDF is available here.
PDF is available here.
Abstract
We screened the recently sequenced genome of the parasitic wasp, Nasonia vitripennis, for the presence of these signaling molecules and annotated 30 precursor genes encoding 51 different mature neuropeptides or protein hormones. Twenty-four of the predicted mature Nasonia neuropeptides could be expe...
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PMID: 20695486
PDF is available here.
PDF is available here.
Ecological Applications (20)7 2010
Abstract
We developed a graphical model to conceptualize the conditions required to explain the current contradictory findings, and then employed a series of manipulations to evaluate C. stoebe responses to herbivores. We manipulated soil nitrogen and competition in a field population and measured attack rat...
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PMID: 21049878
PDF is available here.
PDF is available here.
Abstract
Dinotefuran, (RS)-1-methyl-2-nitro-3-(tetrahydro-3-furylmethyl)guanidine, is a neonicotinoid insecticide developed by Mitsui Chemicals Agro. Dinotefuran provides a tetrahydrofuran (THF) moiety distinct from other neonicotinoids with a chloropyridine or chlorothiazole ring, which is considered to be a...
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PMID: 20919736
PDF is available here.
PDF is available here.
Abstract
We evidenced that pheromone biosynthesis towards the immediate dienoic gland precursor, the (E,Z)-6,11-hexadecadienoic acid, involves desaturation steps with Δ(6) and Δ(11) regioselectivity. cDNA cloning of pheromone gland desaturases and heterologous expression in yeast demonstrated that the 6,11...
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PMID: 20691782
PDF is available here.
PDF is available here.
Abstract
We experimentally evaluated seed limitation, insect herbivory, and their interaction in the regeneration and density of tall thistle (Cirsium altissimum) across a topographic ecosystem productivity gradient in tallgrass prairie over two years. On ridges and in valleys, we used a factorial experiment...
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PMID: 21058567
PDF is available here.
PDF is available here.
Kidney International (78)10 2010
Abstract
Chemico-Biological Interactions (187)1-3 2010
Abstract
We have performed in silico docking of the series of O,O-dialkylfluorophosphates into active center of different ChEs - both from mammals (human and mouse AChEs and horse BChE), and from insects (spring grain aphid AChE belonging to AChE-1 type, and housefly AChE belonging to AChE-2 type). According...
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PMID: 20347727
PDF is available here.
PDF is available here.
Abstract
Herbivory and competition are two of the most common biotic stressors for plants. When occurring simultaneously, responses to one interaction can constrain the induction of responses to the other interaction due to resource limitation and other interactive effects. Thus, to maximize fitness when int...
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PMID: 20957957
PDF is available here.
PDF is available here.
Abstract
We investigated responses of insect visitors to experimental manipulations of flower color in the New Zealand alpine. Native syrphid flies (Allograpta and Platycheirus) and solitary bees (Hylaeus and Leioproctus) showed distinct preferences for visiting certain flower species. These responses were d...
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PMID: 20957958
PDF is available here.
PDF is available here.
Abstract
We excluded foliar fungal pathogens from perennial grassland by using fungicide to determine the effect of natural levels of disease on an otherwise undisturbed plant community. Importantly, we excluded foliar fungal pathogens along with rabbits, insects, and mollusks in a full factorial design, whi...
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PMID: 20957952
PDF is available here.
PDF is available here.
Abstract
We use three separate data sets on herbivorous insects on oak (Quercus robur) to estimate the relative effects of host plant genotype (G), location (E), and the G x E interaction on herbivore community structure: a common garden experiment replicated at the landscape scale (approximately 5 km2); two...
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PMID: 20957960
PDF is available here.
PDF is available here.
Abstract
We resolve the discrepancy between theory and observation using a dynamic state-dependent model that incorporates morphological and behavioral responses to predation risk. We allow prey to choose the optimal activity level and/or investment in defense over the growth period. We show that under certa...
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PMID: 20957968
PDF is available here.
PDF is available here.
Genetika (Moskva) (46)9 2010
Abstract
At the turn of the 21st century, the use of molecular and molecular cytogenetic methods led to revolutionary advances in systematics of insects and other arthropods. Analysis of nuclear and mitochondrial genes, as well as investigation of structural rearrangements in the mitochondrial chromosome con...
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PMID: 21061630
PDF is available here.
PDF is available here.
Abstract
I and II, further referred to as SNA-I and SNA-II, are two ricin-related lectins from elderberry. SNA-I is a chimeric lectin composed of an A-chain with enzymatic activity and a B-chain with carbohydrate-binding activity, and therefore belongs to the group of type 2 ribosome-inactivating proteins. I...
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PMID: 20230823
PDF is available here.
PDF is available here.
Abstract
Comparative molecular analysis reveals a wide variation of clock mechanisms among insects. In this study, the clock gene homologues of Clock (Td'Clk) and cycle (Td'cyc) were cloned from an apterygote insect, Thermobia domestica. Structural analysis showed that Td'CLK includes bHLH, PAS-A, PAS-B doma...
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PMID: 20416313
PDF is available here.
PDF is available here.
Abstract
We used a theoretical approach to show that the network architecture favoring stability fundamentally differs between trophic and mutualistic networks. A highly connected and nested architecture promotes community stability in mutualistic networks, whereas the stability of trophic networks is enhanc...
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PMID: 20705861
PDF is available here.
PDF is available here.
Abstract
We focus on the new hemimetabolous paradigm. We highlight how hemimetabolous short-germ or intermediate-germ embryos establish the anterior/posterior (A/P) pattern and the importance of dynamic cell movement during germband formation. In hemimetabolous insects, orthodenticle, encoding a homeodomain-...
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PMID: 20462751
PDF is available here.
PDF is available here.
Abstract
Ruminant dung is a highly ephemeral, patchily distributed resource, which is used by a diverse community of invertebrate species. In such environments, high levels of insect aggregation may be important in facilitating stability and coexistence across patchily distributed populations. The aim of the...
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PMID: 20003575
PDF is available here.
PDF is available here.
Abstract
The effect of ground cover upon the communities of beneficial arthropods established in the canopy of lemon trees was investigated, by comparing three ground-cover management treatments applied: RV, resident vegetation; S, sowed selected species; and BS, bare soil by controlling weeds with herbicide...
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PMID: 20102658
PDF is available here.
PDF is available here.
Abstract
We analysed the genetic structure of 11 populations of an endangered stenotopic damselfly, Nehalennia speciosa (Odonata: Coenagrionidae), in Poland and Lithuania by means of allozyme electrophoresis of 14 gene loci. The overall genetic diversity of all populations was low (A: 1.32; H: 2.6%; Ptot: 29...
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PMID: 19930770
PDF is available here.
PDF is available here.
Abstract
We showed that: (i) the occurrence of natural enemies was only weakly associated with the abundance of hosts; (ii) grain moisture content and temperature appeared to be at least as important variables as host availability; and (iii) the predictive strengths of regression models were similar when bas...
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PMID: 19925692
PDF is available here.
PDF is available here.
Environmental Research (110)6 2010
Abstract
We assessed glyphosate environmental fate in the surrounding water and its effects on transplanted Daphnia magna, field collected caddisfly (Hydropsyche exocellata) and on benthic macroinvertebrate structure assemblages. Investigations were conducted in the industrialized and urbanized Mediterranean...
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PMID: 20541186
PDF is available here.
PDF is available here.
Journal of Parasitology (96)4 2010
Abstract
We show through fieldwork and host specificity experimental infections that the life cycle of Halipegus eccentricus utilizes 4 hosts. Metamorphosed anurans become infected with H. eccentricus by feeding on infected damselflies; worms reside in the stomach of anurans, migrate to the eustachian tubes...
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PMID: 20738199
PDF is available here.
PDF is available here.
Abstract
We report here on a class 1 laccase (MLAC1) that is involved in both virulence and tolerance to environmental stresses. Mlac1 is expressed during isotropic growth (swelling) but not during polarized growth (e.g., germ tubes and hyphae); Mlac1 is therefore expressed exclusively in the later stages of...
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PMID: 20382249
PDF is available here.
PDF is available here.
Abstract
Insects and insect-derived products have been widely used in folk healing in many parts of the world since ancient times. Promising treatments have at least preliminarily been studied experimentally. Maggots and honey have been used to heal chronic and post-surgical wounds and have been shown to be...
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PMID: 20806997
PDF is available here.
PDF is available here.
Abstract
Diapause entails molecular, physiological and morphological remodeling of living animals, culminating in a dormant state characterized by enhanced stress tolerance. Molecular mechanisms driving diapause resemble those responsible for biochemical processes in proliferating cells and include transcrip...
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PMID: 20213274
PDF is available here.
PDF is available here.
Abstract
Studies on bioefficacy of insecticides against brinjal shoot and fruit borer, Leucinodes orbonalis Guenee on brinjal were carried out during 2007 and 2008. The results on bioefficacy of insecticides showed that in terms of shoot infestation, emamectin benzoate (0.002%), endosulfan (0.05%), novaluron...
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PMID: 21186709
PDF is available here.
PDF is available here.
Parasitology Research (107)2 2010
Abstract
The occurrence of ectoparasites on ruminants throughout the yearly seasons was compiled from the literature and from our own experiments that were based on ultraviolet trap catches during the years 2007-2009. The data were listed in tables, which also contained details on the life cycles of flies, m...
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PMID: 20567984
PDF is available here.
PDF is available here.
Parasitology Research (107)2 2010
Abstract
The paper summarizes the acaricidal and insecticidal effects of a patented neem seed extract when diluted 1:10 with shampoo or 1:20, 1:30, 1:33, 1:40, respectively, 1:66 with tap water. It was shown that a broad range of pests and parasites, such as house dust mites, poultry mites, harvest mites, Ix...
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PMID: 20461406
PDF is available here.
PDF is available here.
Plant Physiology (153)3 2010
Abstract
We investigated intraspecific differences of volatile emissions induced from rosette leaves of 27 accessions of Arabidopsis (Arabidopsis thaliana) upon treatment with coronalon, a jasmonate mimic eliciting responses similar to those caused by insect feeding. Quantitative variation was found for the...
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PMID: 20463089
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
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PMID: 20199559
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
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PMID: 20199559
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
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PMID: 20199559
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
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PMID: 20199559
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
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PMID: 20199559
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
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PMID: 20199559
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
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PMID: 20199559
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
|
PMID: 20199559
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
|
PMID: 20199559
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
|
PMID: 20199559
PDF is available here.
PDF is available here.
Abstract
We use comparative phylogeographic analysis (COI; H3) of six alpine stonefly genera (116 individuals, 102 localities) to test a vicariant evolutionary hypothesis for the origin of this "biotic gap." We find strikingly similar phylogeographic patterns in all six genera, with the deepest genetic diver...
|
PMID: 20199559
PDF is available here.
PDF is available here.