Abstract：
:Larvae of endoparasitoids undergo extensive morphological changes and often have special features to allow their development inside the host. We present the first detailed study on the development of the anal vesicle and the gut. The analyses reveal that the anal vesicle is first seen on the dorsal side of the abdomen as an internal structure covered by a membrane. The morphology of the abdomen then changes intensively: new segments are formed and the anal vesicle develops from a crest of large cells to a protrusion. Towards the end of the first instar, the anal vesicle is fully evaginated and no longer covered by a membrane; the large epithelial cells have microvilli on their apical side which suggests uptake of nutrients from the host's haemolymph. When the larva has moulted to the second instar, the ultrastructure of the anal vesicle begins to change and shows signs of degeneration. In this stage the epithelium of the midgut is fully developed and has a brush border which suggests that nutrient uptake occurs now primarily through the midgut. The anal vesicle then degenerates completely. The salivary glands are prominent already in first instar larvae and appear to produce and release a host regulatory 212 kD protein.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Kaeslin M,Wyler T,Grossniklaus-Bürgin C,Lanzrein Bdoi
10.1016/j.jinsphys.2005.11.006keywords:
subject
Has Abstractpub_date
2006-03-01 00:00:00pages
269-81issue
3eissn
0022-1910issn
1879-1611pii
S0022-1910(05)00244-1journal_volume
52pub_type
杂志文章abstract：:In insects, lipids are stored in the fat body, mainly as triacylglycerol (TAG). In Rhodnius prolixus, a hematophagous hemipteran, lipids are accumulated after blood meal to be used later on. In adult females, at the second day after feeding, the amount of TAG was 57+/-17 microg/fat body, it increased almost five times...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2008.02.003
更新日期：2008-05-01 00:00:00
abstract：:In this study we probe the molecular events underpinning diapause observed in overwintering females of Culex pipiens. Using suppressive subtractive hybridization (SSH) we have identified 40 genes that are either upregulated or downregulated during this seasonal period of dormancy. Northern blot hybridizations have con...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2006.08.008
更新日期：2007-03-01 00:00:00
abstract：:Insect hemocytes play an important role in insects' defense against environmental stressors as they are entirely dependent on their innate immune system for pathogen defense. In recent years a dramatic decline of pollinators has been reported in many countries. The drivers of this declines appear to be associated with...
journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2018-07-01 00:00:00
abstract：:Males of the Asian rhinoceros beetle, Trypoxylus dichotomus, possess exaggerated head and thoracic horns that scale dramatically out of proportion to body size. While studies of insulin signaling suggest that this pathway regulates nutrition-dependent growth including exaggerated horns, what regulates disproportionate...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.01.006
更新日期：2018-01-01 00:00:00
abstract：:Insects and vertebrates have multiple major physiological systems, each species having a circulatory system, a metabolic system, and a respiratory system that enable locomotion and survival in stressful environments, among other functions. Broadening our understanding of the physiology of Drosophila melanogaster requi...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.03.004
更新日期：2017-05-01 00:00:00
abstract：:The development of genetically modified vectors refractory to parasites is seen as a promising strategy in the future control of endemic diseases such as malaria. Nevertheless, knowledge of mosquito embryogenesis, a pre-requisite to the establishment of transgenic individuals, has been presently neglected. We have her...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(98)00154-1
更新日期：1999-08-01 00:00:00
abstract：:The spectral sensitivity of the pit organ of the beetle Melanophila acuminata (Coleoptera:Buprestidae) was measured using an ultrafast tunable infrared laser source and standard electrophysiological techniques. The pit organ may be classified as a broadband detector as the beetles responded to all infrared excitation ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(01)00134-2
更新日期：2001-12-01 00:00:00
abstract：:Diapause hormone (DH) and pheromone biosynthesis activating neuropeptide (PBAN) are encoded by a single mRNA in the suboesophegeal ganglion (SG) and are responsible for induction of embryonic diapause in Bombyx mori and sex pheromone biosynthesis in lepidopteran insects. PBAN cDNA analyses revealed that the DH-like pe...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2003.09.006
更新日期：2004-01-01 00:00:00
abstract：:While defending lek-territories, male Anastrepha suspensa (Loew) produce chemical, acoustic and visual courtship signals. In the laboratory and under semi-natural conditions, topical application of the juvenile hormone analog methoprene doubles pheromone production and subsequently doubles sexual success. However, sex...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.05.008
更新日期：2010-11-01 00:00:00
abstract：:The activity and composition of leafhopper saliva are important in interactions with the host rice plant, and it may play a physiological role in detoxifying toxic plant substances or ingesting sap. We have characterized diphenoloxidase in the salivary glands of Nephotettix cincticeps, its activity as a laccase, and i...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2005.08.010
更新日期：2005-12-01 00:00:00
abstract：:Flight behaviors in various insect species are closely correlated with their mechanical and neuronal properties. Compared to locusts and flies which have been intensively studied, moths have "intermediate" properties in terms of the neurogenic muscle activations, power generation by indirect muscles, and two-winged-in...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.08.002
更新日期：2011-11-01 00:00:00
abstract：:Insects are known to selectively balance their intake of protein and carbohydrate to optimize reproduction and survival. For insects who feed on decomposing fruit, fluctuations in macronutrient composition occur as fruits ripe and decomposition progresses which may challenge optimal resource allocation. Using Drosophi...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2019.103940
更新日期：2019-10-01 00:00:00
abstract：:In this study, we investigated activation of the extracellular signal-regulated kinase (ERK) by the prothoracicotropic hormone (PTTH) in prothoracic gland cells of the silkworm, Bombyx mori. The results showed that the PTTH stimulated ERK phosphorylation as this depends on time and dose and ecdysteroidogenic activity....
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2007.03.004
更新日期：2007-06-01 00:00:00
abstract：:Studies of the genetic mechanisms underlying metabolic storage have focused on a few model organisms. Although very fruitful, these studies have not allowed for the examination of mechanisms across a phylogenetic spectrum. The exploration of natural patterns of metabolic pool size variation across species will help us...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.08.008
更新日期：2009-12-01 00:00:00
abstract：:Nutritional constraints of non-prey foods for entomophagous arthropods are seldom investigated, yet are crucial to understanding their nutritional ecology and function within natural and managed environments. We investigated whether pollen from five maize hybrids was of variable quality for the lady beetle, Coleomegil...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.09.006
更新日期：2010-01-01 00:00:00
abstract：:Larvae of Syrphus ribesii collected from overwintering sites in the U.K. are strongly freeze tolerant with 70% survival at -35 degrees C. The cold tolerance of laboratory reared insects increased with increasing periods of acclimation at 0 degrees C, with a concurrent rise in the supercooling point (SCP) from -6.8+/-0...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(97)00106-6
更新日期：1997-11-01 00:00:00
abstract：:We recorded the eclosion time of the flesh fly, Sarcophaga crassipalpis, at different depths in the outdoor soil and under temperature cycles with various amplitudes in the laboratory, to examine the timing adjustment of eclosion in response to temperature cycles and their amplitudes in the pupal stage. In the soil, m...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.05.006
更新日期：2011-09-01 00:00:00
abstract：:Male Katydids (Orthoptera: Tettigoniidae) rub together their specialised forewings to produce sound, a process known as stridulation. During wing closure, a lobe on the anal margin of the right forewing (a scraper), engages with a tooth-covered file on the left forewing. The movement of the scraper across the file pro...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2019.03.005
更新日期：2019-04-01 00:00:00
abstract：:Octopamine plays a major role in insect motor control and is released from dorsal unpaired median (DUM) neurones, a group of cells located on the dorsal midline of each ganglion. We were interested whether and how these neurones are activated during walking and chose the semi-intact walking preparation of stick insect...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2007.08.010
更新日期：2008-01-01 00:00:00
abstract：:Pemphigus bursarius (L.) is a host alternating root-feeding aphid with a proportion of the population overwintering as asexual hiemalis in the soil. These hiemalis must be sufficiently cold tolerant to survive at the temperatures they would experience in winter, and also be able to overcome a period of prolonged starv...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(99)00188-2
更新日期：2000-03-01 00:00:00
abstract：:Bruchid beetles infest various seeds. The seed coat is the first protective barrier against bruchid infestation. Although non-host seed coats often impair the oviposition, eclosion and survival of the bruchid Callosobruchus maculatus larvae, morphological and biochemical aspects of this phenomenon remain unclear. Here...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.10.004
更新日期：2014-01-01 00:00:00
abstract：:Based on the finding that Galanthus nivalis agglutinin (GNA) has direct negative effects on larvae of Chrysoperla carnea, laboratory experiments were conducted to investigate its toxicity to the adults. While the ingestion of GNA dissolved in an artificial diet did not affect adult longevity, there were concentration-...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2008.10.015
更新日期：2009-02-01 00:00:00
abstract：:Air flow rates may confound the investigation and classification of insect gas exchange patterns. Here we report the effects of flow rates (50, 100, 200, 400 ml min(-1)) on gas exchange patterns in wild-caught Glossina morsitans morsitans from Zambia. At rest, G. m. morsitans generally showed continuous or cyclic gas ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.02.005
更新日期：2010-05-01 00:00:00
abstract：:The peritrophic matrix (PM) is an extracellular, semi-permeable biocomposite that lines the midgut of most insects. The PM serves as the first defense in the midgut to resist microorganisms such as viruses, bacteria and other pathogens, and to protect epithelial cells from mechanical damage. The PM also separates the ...
journal_title：Journal of insect physiology
pub_type： 杂志文章,评审
doi：10.1016/j.jinsphys.2019.03.006
更新日期：2019-04-01 00:00:00
abstract：:The recently available genome of Aedes albopictus - the most worldwide-spread human arbovirus vector - has revealed a large genome repertory and a great plasticity which are believed to have contributed to the species success as an invasive species and opened the way to genomic, transcriptomic and proteomic studies. W...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.03.005
更新日期：2017-05-01 00:00:00
abstract：:Insecticidal properties of protease inhibitors have been established in transgenic plants. In the wake of continuous research and rapid development of protease inhibitors it is important to assess possible effects on beneficial insects like the honey bee (Apis mellifera L.). In this study, newly emerged caged bees wer...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2005.04.003
更新日期：2005-09-01 00:00:00
abstract：:Social environments can have a major impact on ageing profiles in many animals. However, such patterns in variation in ageing and their underlying mechanisms are not well understood, particularly because both social contact and isolation can be stressful. Here, we use Drosophila melanogaster fruitflies to examine sex-...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.08.008
更新日期：2017-10-01 00:00:00
abstract：:The tropical fig borer, Batocera rufomaculata De Geer, is a large beetle that is a pest on a number of fruit trees, including fig and mango. Adults feed on the leaves and twigs and females lay their eggs under the bark of the tree. The larvae bore into the tree trunk, causing substantial damage that may lead to the co...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.02.008
更新日期：2017-04-01 00:00:00
abstract：:Prey nutrient quality determines predator performance. Polyphagous predators can address nutritional challenges by targeting prey with specific nutrient composition, but prey-specialised predators (e.g., ant-eaters), must obtain all nutrients from limited array of prey. Analysis of published data on prey specificity o...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2014.01.008
更新日期：2014-03-01 00:00:00
abstract：:The immune system of Rhodnius prolixus comprehends the synthesis of different effectors that modulate the intestinal microbiota population and the life cycle of the parasite Trypanosoma cruzi inside the vector midgut. One of these immune responses is the production of reactive nitrogen species (RNS) derived by the act...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2020.104100
更新日期：2020-10-01 00:00:00
