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Recent article
Integumentary System
Abstract
We previously suggested that Armigeres subalbatus (Coquillett) prophenoloxidase III (As-pro-PO III) might be associated with morphogenesis of larvae and pupae. Because PO and its activation system are present in the insect cuticle, and cuticle formation is a major event during pupal morphogenesis, w...
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PMID: 20695265
PDF is available here.
PDF is available here.
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Zoological Science (27)5 2010
Abstract
We named this structure the "quill vibrator disc" (QVD). The QVD was 16.8 mm long and 8.55 mm wide in a typical adult. Longitudinal musculature symmetrical about the sagittal plane was developed in the QVD. Myocytes were found immunohistochemically to contain mainly fast myosin but not slow myosin....
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PMID: 20443690
PDF is available here.
PDF is available here.
BMC Genomics (11) 2010
Abstract
We constructed an Antarctic krill cDNA microarray in order to generate gene expression profiles across the moult cycle and identify possible activation pathways.
A total of 26 different cuticle genes were identified that showed differential gene expression across the moult cycle. Almost all cuticle...
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PMID: 20958982
PDF is available here.
PDF is available here.
Abstract
The incidence of epizootic shell disease in American lobster Homarus americanus has increased in southern New England, U.S.A., in the last decade, but few longitudinal studies have followed the disease progress in individual lobsters or demonstrated direct effects on mortality or growth. Diseased lo...
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PMID: 20183962
PDF is available here.
PDF is available here.
Developmental Dynamics (238)3 2009
Abstract
We show that a specific DHR38 null allele, DHR38(Y214), leads to fully penetrant pharate adult lethality, similar to the most severe phenotype associated with the EMS-induced mutations. DHR38(Y214) mutants display minor effects on ecdysone-regulated transcription at the onset of metamorphosis. In co...
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PMID: 19235727
PDF is available here.
PDF is available here.
Environmental Entomology (38)1 2009
Abstract
We studied the possible use of contact pheromones in the mating behavior of the weevil Aegorhinus superciliosus, a native species of Chile. Males mounted females only after antennal contact with the female's cuticle, and only 33% of the males attempted to mate with dead females washed with solvent....
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PMID: 19791614
PDF is available here.
PDF is available here.
Abstract
We searched both the Bombyx whole genome sequence as well as various EST libraries, and found 220 putative cuticular protein genes. We also revised the annotation of the gene model, and named each identified cuticular protein based on its motif. The phylogenetic tree of cuticular protein genes among...
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PMID: 19280704
PDF is available here.
PDF is available here.
Abstract
Over the past few years, a growing number of cutaneous tumors expressing CD34 is being reported. The list contains benign and malignant neoplasms as well as reactive and hamartomatous lesions of diverse lineages of differentiation, including fibroblastic, myofibroblastic, fibrohistiocytic, vascular,...
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PMID: 18976402
PDF is available here.
PDF is available here.
Abstract
The ultrastructure of dermal fibres of a 200Myr thunniform ichthyosaur, Ichthyosaurus, specifically the 67nm axial repeat D-banding of the fibrils, which characterizes collagen, is presented for the first time by means of scanning electron microscopy (SEM) analysis. The fragment of material investig...
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PMID: 18577504
PDF is available here.
PDF is available here.
Journal of Chemical Ecology (34)10 2008
Abstract
We investigated policing behavior and the chemical signaling upon which policing behaviors are informed in the ant Aphaenogaster cockerelli. We found that worker-produced eggs are not policed, and we showed that there is a lack of chemical signaling for effective egg policing to occur in this specie...
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PMID: 18709507
PDF is available here.
PDF is available here.
Zoological Science (25)9 2008
Abstract
New probable mechanosensory cell groups were found in Polyandrocarpa misakiensis. In this species, the tunic with epithelium penetrates into the oral and atrial tentacles (oral and atrial tentacular tunic), which is continuous with a tunic layer intervening between the descending and ascending epith...
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PMID: 19267602
PDF is available here.
PDF is available here.
Journal of Experimental Biology (211)Pt 16 2008
Abstract
We studied the different cuticular layers of the head part (gula) of the head-to-neck ball articulation of Pachnoda marginata and of the photomechanic infrared (IR) sensilla of Melanophila acuminata on the basis of cross sections. In our study, we combined histological methods (i.e. detection of the...
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PMID: 18689411
PDF is available here.
PDF is available here.
Journal of Experimental Biology (211)Pt 16 2008
Abstract
We have sought to reveal the mechanism underlying the apparent non-sticky nature of the cuticle of this bug. In this study, we have visualized intact plant and insect surfaces using cryo-scanning electron microscopy and measured the adhesive properties of the plant secretion on different surfaces. W...
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PMID: 18689418
PDF is available here.
PDF is available here.
Veterinary Parasitology (155)1-2 2008
Abstract
Eight indoor-reared crossbred sheep with no pre-exposure to Fasciola hepatica were infected, by oral gavage, with 200 metacercarial cysts of the triclabendazole (TCBZ)-susceptible Cullompton isolate of F. hepatica. Anthelmintic dosing occurred at 4 weeks post-infection with 10 mg/kg triclabendazole....
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PMID: 18511199
PDF is available here.
PDF is available here.
Natural Product Reports (25)4 2008
Abstract
This review describes the epidermal and glandular chemistry of nonavian reptiles in relation to proposed functions, and includes more than 170 references. The results are presented according to the different reptile taxa.
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PMID: 18663393
PDF is available here.
PDF is available here.
Abstract
Our data provide support for the parallel model of chromosome evolution in the species complex....
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PMID: 18417370
PDF is available here.
PDF is available here.
Insect Molecular Biology (17)3 2008
Abstract
Laccase, a member of a group of proteins collectively known as multicopper oxidases, is hypothesized to play an important role in insect cuticle sclerotization by oxidizing catechols in the cuticle to their corresponding quinones, which then catalyze protein cross-linking reactions. Laccase 2 has be...
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PMID: 18477244
PDF is available here.
PDF is available here.
Veterinary Parasitology (153)1-2 2008
Abstract
Eight indoor-reared, crossbred sheep with no pre-exposure to Fasciola hepatica were infected, by oral gavage, with 200 metacercarial cysts of the triclabendazole-susceptible, Cullompton isolate of F. hepatica. Anthelmintic dosing occurred at 4 weeks post-infection using 15mg/kg compound alpha. Two t...
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PMID: 18359570
PDF is available here.
PDF is available here.
Abstract
We manipulate sexual selection in D. serrata populations generated by hybridizing natural sympatric and allopatric populations. Under the influence of sexual selection, male CHCs evolved from an intermediate phenotype to resemble an allopatric phenotype, which was driven by female choice. Additional...
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PMID: 18298640
PDF is available here.
PDF is available here.
Abstract
We use a quantitative genetic approach to examine the patterns of genetic variation in cuticular hydrocarbon (CHC) profiles, a pheromonal system used extensively in insect communication. Using gas chromatography, we found family specificity in the CHC profiles of male crickets, Teleogryllus oceanicu...
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PMID: 18355187
PDF is available here.
PDF is available here.
Abstract
Excessive removal of structural material from skin during leather processing results in unattractive crease formation in leather. It is difficult to detect this in pelts at an early processing stage as it only becomes really apparent once the skin is made into leather. There would be great advantage...
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PMID: 17707083
PDF is available here.
PDF is available here.
Abstract
We show that in Drosophila, quenching of basal activator protein 1 (AP-1) transcription factor activity serves as a prerequisite to its tight spatial and temporal control by the JNK (Jun N-terminal kinase) signaling cascade. Our studies indicate that the novel raw gene product is required to limit A...
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PMID: 18430930
PDF is available here.
PDF is available here.
Journal of Experimental Biology (211)Pt 8 2008
Abstract
We found an association between non-nestmate queen adoption and similarity of the CHC profiles of adopted and host colony queens. Also, nestmate and non-nestmate queen CHC profiles became more similar after adoption by queenless colonies. Furthermore, queens treated with non-nestmate queen CHC had d...
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PMID: 18375849
PDF is available here.
PDF is available here.
Journal of Morphology (269)3 2008
Abstract
Cell junctions and the cytoskeleton of integumental epidermal cells from six bivalves, four gastropods, and two cephalopods were studied by transmission electron microscopy. In all species examined, the junctions in supporting cells presented the following similar pattern: an apical-lateral adhesion...
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PMID: 17960803
PDF is available here.
PDF is available here.
Journal of Experimental Biology (211)Pt 4 2008
Abstract
We tracked the location and metabolic fate of 14C- and 3H-labeled hydrocarbons through vitellogenic females and their embryos and nymphs. A considerable amount ( approximately 50%) of radiolabeled maternal hydrocarbons was transferred to oocytes and persisted through a 20-day embryogenesis and the f...
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PMID: 18245631
PDF is available here.
PDF is available here.
Journal of Oleo Science (57)2 2008
Abstract
These results indicate that FA and OZ suppressed not only dark-color pigmentation but also oxidative stress in cultured red sea bream....
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PMID: 18198470
PDF is available here.
PDF is available here.
Redox Report (13)3 2008
Abstract
I was performed at 10 kg with one contraction every 3 s. Exercise II was 30 kg with one contraction every 3 s. Exercise III was 10 kg with one contraction per second. Acetone concentration was analyzed by gas chromatography. In the first experiment, reasonable reproducibility was obtained in measure...
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PMID: 18544232
PDF is available here.
PDF is available here.
Abstract
A decrease in the down density and integument relative weight has been demonstrated in the ontogeny of nestlings. Coupled with the differentiation of the down cover (several generations of the down and down plumages with a typical heterochrony), this provides for the development of a multilayer ther...
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PMID: 18491559
PDF is available here.
PDF is available here.
Abstract
Our comparative attempt demonstrated three (upper, mid-dermal, and dermal) plexus or retia in the integument of mammals of important systematic groups. The findings highlight a specific spectrum of terminal sugars in the endothelial cells and their glycocalyx and/or the blood vessel wall as related...
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PMID: 18489983
PDF is available here.
PDF is available here.
Abstract
We report that Sicarius and Homalonychus convergently evolved numerous high aspect ratio, flexible fibres that we call 'hairlettes' protruding from the setal shaft. We demonstrate that particles attach more densely to regions of Homalonychus with hairlettes than to other regions of the same animal w...
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PMID: 17925277
PDF is available here.
PDF is available here.
Tissue & Cell (39)6 2007
Abstract
Mucous consists of glycoproteins and proteoglycans produced by specific secretory cells (mucocytes). In anurans the cutaneous mucous is produced by intradermal glands and displays both mechanical and chemical protection functions. Indeed, mucous maintains the integument moist and facilitates gas exc...
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PMID: 17900644
PDF is available here.
PDF is available here.
Abstract
DNA markers are being increasingly used in studies related to population genetics and conservation biology of endangered species. DNA isolation for such studies requires a source of biological material that is easy to collect, non-bulky and reliable. Further, the sampling strategies based on non-inv...
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PMID: 18072545
PDF is available here.
PDF is available here.
Abstract
A total of 6830 northern red-legged frog Rana aurora aurora tadpoles were examined under a dissecting microscope for oral disc, integumentary, and cloacal abnormalities in 13 ponds in and near Redwood National Park in northern California. Of these, 163 tadpoles were collected for histopathological i...
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PMID: 18159674
PDF is available here.
PDF is available here.
Abstract
To explore the possible utilization of goldfish scale in monitoring environmental toxicants as well as that for calcified tissue research, characteristics of cells in the scale were examined by identifying genes differentially expressed in those cells. Subtraction cloning was subjected to RNAs betwe...
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PMID: 17965550
PDF is available here.
PDF is available here.
Systematic Parasitology (68)1 2007
Abstract
We expect that the study of integumentary structures on the larvae of other Amblyomma species will be useful in future taxonomic keys for the identification of Amblyomma larvae from the Neotropical region....
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PMID: 17417718
PDF is available here.
PDF is available here.
Abstract
We investigated changes in the histology and protein expression in the epidermis and sub-epidermis of the black tiger shrimp (Penaeus monondon) during the molting cycle. The epidermis consists of a cell layer located beneath the cuticle, while the sub-epidermis is mainly composed of sub-epidermal ce...
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PMID: 17601758
PDF is available here.
PDF is available here.
Abstract
We performed gas chromatography-mass spectrometry analyses of the CHCs of adults and larvae of the social wasp Polistes dominulus and found that larvae possess a characteristic chemical colony-specific pattern distinct from that of adults. Behavioural assays confirmed that these are recognized and d...
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PMID: 17498732
PDF is available here.
PDF is available here.
Abstract
We will discuss the metabolic pathways involved in hydrocarbon formation, and their structure, together with their role in insect survival. We will also review the utility of cuticular hydrocarbon fingerprints in chemotaxonomy....
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PMID: 17046303
PDF is available here.
PDF is available here.
Journal of Morphology (268)5 2007
Abstract
The hinge structure in the podocopan ostracode Loxconcha pulchra was examined throughout its molt cycle using ultrastructural and histological procedures. The structure consists of ligament and hingement, and develops along the attached margin of the right and left valves. In Stage C...
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PMID: 17394209
PDF is available here.
PDF is available here.
Abstract
Abstract
We appreciate how species interact with the environment, requiring different ectodermal organs. Novel ectodermal organs help define evolutionary directions, leading to new organism classes as exemplified by feathers for Aves and mammary glands for Mammals. Here, we review their structure, function,...
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PMID: 17382566
PDF is available here.
PDF is available here.
Abstract
Skeletomuscular anatomy of the scorpion prosoma is examined in an attempt to explain the evolution of two endoskeletal features, a muscular diaphragm dividing the prosoma and opisthosoma and cuticular epistomal entapophyses with a uniquely complex arrangement of muscles, tendons and ligaments. Both...
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PMID: 18089089
PDF is available here.
PDF is available here.
Abstract
We used a combination of genome annotation, transcriptional profiling and RNA interference to unravel the functional significance of a honeybee gene (csp5) belonging to the CSP family. We show that csp5 expression resembles the maternal-zygotic pattern that is characterized by the initiation of tran...
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PMID: 17216269
PDF is available here.
PDF is available here.
Abstract
The morphological characteristics of the leptodactylid integument of Proceratophrys and Odontophrynus genera were investigated by means of stereoscopic, low vacuum scanning electron and light microscopy. The integument surface of Proceratophrys boiei, Proceratophrys laticeps and Proceratophrys appen...
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PMID: 16950625
PDF is available here.
PDF is available here.
Waste Management (27)6 2007
Abstract
Leather processing generates huge amounts of both solid and liquid wastes. The management of solid wastes, especially tanned leather waste, is a challenging problem faced by tanners. Hence, studies on biodegradability of leather become imperative. In this present work, biodegradability of untanned,...
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PMID: 16740383
PDF is available here.
PDF is available here.
Abstract
The nanomechanical properties of the multilayer elytra cuticle of the dung beetle (Copris ochus Motschulsky) were investigated in the vertical and transverse directions using a nano-indenter. The reduced modulus Ev and hardness Hv of the surface cuticle in the vertical direction obtained by nano-ind...
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PMID: 17054388
PDF is available here.
PDF is available here.
Pigment Cell Research (19)4 2006
Abstract
I (GTP-CH I), which is a key enzyme for the biosynthesis of pteridines, during the development of the silkworm. Results of Northern blotting showed that in the quail mutant strong signals of GTP-CH I mRNA appeared around each period of ecdysis, while no such signals appeared in the background strain...
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PMID: 16827752
PDF is available here.
PDF is available here.
Journal of Anatomy (209)2 2006
Abstract
The microscopic anatomy of the cardio-respiratory system, digestive system, kidney, lymphatic system and integument was investigated in the leopard seal, Hydrurga leptonyx, by examining histological sections of tissues collected from leopard seals in Antarctica and New South Wales, Australia. The ma...
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PMID: 16879598
PDF is available here.
PDF is available here.
Ostomy/wound management (52)6 2006
Abstract
Journal of Morphology (267)4 2006
Abstract
I and II are used by the Ricinulei to explore their surroundings with tentative movements. The tarsomeres of these legs show similarities in shape and surface structures that distinguish them from those of legs III and IV. In this study, 11 different structures of the tarsomere surfaces of two cave-...
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PMID: 16425267
PDF is available here.
PDF is available here.
Abstract
Abstract
We describe a small new theropod dinosaur from the Late Jurassic period of Schamhaupten in southern Germany. Being exquisitely preserved and complete from the snout to the distal third of the tail, the new fossil is the best-preserved predatory, non-avian dinosaur in Europe. It possesses a suite of...
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PMID: 16541071
PDF is available here.
PDF is available here.
Journal of Experimental Biology (209)Pt 4 2006
Abstract
We used scanning (SEM) and transmission electron microscopy (TEM) to obtain information about the material structure of the gula plate, the head part of the head-to-neck articulation system in the beetle Pachnoda marginata. The surface of this cuticle appears rather smooth in SEM. The fibers of the...
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PMID: 16449566
PDF is available here.
PDF is available here.
Development (133)1 2006
Abstract
We show that knickkopf (knk) and retroactive (rtv) are two new tube expansion mutants that fail to form filamentous chitin structures, both in the tracheal and cuticular chitin matrices. Mutations in knk and rtv are known to disrupt the embryonic cuticle, and our combined genetic analysis and chemic...
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PMID: 16339194
PDF is available here.
PDF is available here.
Journal of Experimental Biology (209)Pt 2 2006
Abstract
The vertebrate integument represents an evolutionary compromise between the needs for mechanical protection and those of sensing the environment and regulating the exchange of materials and energy. Fibrous keratins evolved as a means of strengthening the integument while simultaneously providing a s...
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PMID: 16391344
PDF is available here.
PDF is available here.
Journal of Morphology (266)2 2005
Abstract
We examine the fossil evidence relating to alleged feather progenitors, commonly referred to as protofeathers, in these putative ancestors of birds. Our findings show no evidence for the existence of protofeathers and consequently no evidence in support of the follicular theory of the morphogenesis...
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PMID: 16217748
PDF is available here.
PDF is available here.
Abstract
We conclude that trypsin-induced tetrathyridia development to adult worm is FBS-dependent and that the effect of serum factors is dependent upon a previous trypsin-induced reversible damage to the larva tegument. In dividing and non-dividing tetrathyridia, proliferative activity of cells is mainly l...
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PMID: 15887242
PDF is available here.
PDF is available here.
Abstract
We decided to conduct an extensive review of the literature. The main finding arising from it was the lack of characterization of the neoformed integument where the blisters were formed. These were normally referred to only by clinical descriptions such as "spontaneously healed burn", "grafted site"...
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PMID: 16199292
PDF is available here.
PDF is available here.
Pacific health dialog : a publication of the Pacific Basin Officers Training Program and the Fiji School of Medicine (12)2 2005
Abstract
The widespread use of Kura/Noni came to the attention of researchers from both the University of the South Pacific and the Fiji School of Medicine. Amongst other associated research undertakings to better understand the use and potential benefits of this herbal medicine, a nationwide qualitative res...
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PMID: 18181498
PDF is available here.
PDF is available here.
Abstract
These results suggest that CHs are involved in aggregation and interspecific recognition....
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PMID: 15950236
PDF is available here.
PDF is available here.