Abstract：
:Modulation of liquid feeding-rate would allow insects to ingest more food in the same time when this was required. Ants can vary nectar intake rate by increasing sucking pump frequency according to colony requirements. We analysed electrical signals generated by sucking pump activity of ants during drinking solutions of different sucrose concentrations and under different carbohydrate-deprivation levels. Our aim was to define parameters that characterize the recordings and analyse their relationship with feeding behaviour. Signals showed that the initial and final frequencies of sucking pump activity, as well as the difference between them were higher in sugar-deprived ants. However, these parameters were not influenced by sucrose solution concentration, which affected the number of pump contractions and the volume per contraction. Unexpectedly, we found two different responses in feeding behaviour of starved and non-starved ants depending on concentration. Starved ants drank dilute solutions for the same length of time as non-starved ants but ingested higher volumes. While drinking the concentrated solutions, starved ants drank the same volume, but did so in a shorter time than the non-starved ones. Despite these differences, for each analysed concentration the total number of pump contractions remained constant independently of sugar-deprivation level. These results are discussed in the frame of feeding regulation and decision making in ant foraging behaviour.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Falibene A,Gontijo Ade F,Josens Rdoi
10.1016/j.jinsphys.2009.01.015subject
Has Abstractpub_date
2009-06-01 00:00:00pages
518-24issue
6eissn
0022-1910issn
1879-1611pii
S0022-1910(09)00121-8journal_volume
55pub_type
杂志文章abstract：:The extreme seasonal shifts of day length in polar regions, ranging from constant light in the summer to constant darkness in the winter, pose an intriguing environment for probing activity rhythms and the functioning of circadian clocks. Here, we monitor locomotor activity during the summer on the Antarctic Peninsula...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2015.07.008
更新日期：2015-10-01 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：: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：:Insects lack the ability to synthesize sterols de novo so they acquire this essential nutrient from their food. Cholesterol is the dominant sterol found in most insects, but in plant vegetative tissue it makes up only a small fraction of the total sterol profile. Instead, plants mostly contain phytosterols; plant-feed...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2014.06.004
更新日期：2014-08-01 00:00:00
abstract：:RNA interference (RNAi) is a powerful tool for artificially manipulating gene expression in diverse organisms. In the honey bee, Apis mellifera, both long double stranded RNA (dsRNA) and small interference RNA (siRNA) have been successfully used to reduce targeted gene expression and induce specific phenotypes. Howeve...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.10.005
更新日期：2018-01-01 00:00:00
abstract：:For tsetse (Glossina spp.), the vectors of human and animal trypanosomiases, the physiological mechanisms linking variation in population dynamics with changing weather conditions have not been well established. Here, we investigate high- and low-temperature tolerance in terms of activity limits and survival in a natu...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2007.08.007
更新日期：2008-01-01 00:00:00
abstract：:RNA interference (RNAi) strategy, which enables gene-specific knock-down of transcripts, has been spread across a wide area of insect studies for investigating gene function without regard to model and non-model insects. This technique is of particular benefit to promote molecular studies on non-model insects. However...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.02.009
更新日期：2013-04-01 00:00:00
abstract：:The species-specificity of pairing has been studied in three sympatric Neotropical termites: Cornitermes bequaerti, Cornitermes cumulans and Cornitermes silvestrii (Termitidae, Syntermitinae). Bioassays showed that sex attraction was highly species-specific between C. bequaerti and C. cumulans but not between C. cumul...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.01.010
更新日期：2011-04-01 00:00:00
abstract：:Sublethal concentrations of the bisacylhydrazine moulting hormone agonists, RH-5849, and tebufenozide (RH-5992) were fed to sixth (final) instar larvae of Spodoptera litura. Both RH-5849 and tebufenozide adversely affected the mating success of S. litura when the surviving treated males were crossed with normal female...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2004.03.007
更新日期：2004-06-01 00:00:00
abstract：:Plant-derived trypsin inhibitors have been shown to have potent anti-insect effects and are a promising alternative for the biological control of pests. In this work, we tested the anti-insect activity of Adenanthera pavonina trypsin inhibitor (ApTI) against Diatraea saccharalis larvae, a major insect pest in sugarcan...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.11.012
更新日期：2014-02-01 00:00:00
abstract：:In mosquito larvae, the peritrophic matrix (PM) separates the gut contents from the intestinal epithelium. This report describes a new in vivo assay for estimating PM permeability. The assay also allows for assessment of the permeability of the caecal membrane, a structure that separates each caecum from the gut lumen...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/S0022-1910(00)00053-6
更新日期：2000-09-01 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：:A new trehalase inhibitor, trehazolin, caused a potent inhibition of ovary trehalase in the silkworm, Bombyx mori. A single injection of trehazolin into pupae (40&mgr;g/animal) did not interfere with the accumulation of proteins and lipids, but markedly reduced glycogen content in eggs accompanied by a remarkable incr...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(98)00088-2
更新日期：1998-12-01 00:00:00
abstract：:Copula duration and sperm storage patterns can directly or indirectly affect fitness of male and female insects. Although both sexes have an interest in the outcome, research has tended to focus on males. To investigate female influences, we compared copula duration and sperm storage of Queensland fruit fly females th...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.07.005
更新日期：2010-12-01 00:00:00
abstract：:Large bumblebee (Bombus terrestris) workers typically visit flowers to collect pollen and nectar during the day and rest in the nest at night. Small workers are less likely to forage, but instead stay in the nest and tend brood around the clock. Because Pigment Dispersing Factor (PDF) has been identified as a neuromod...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.01.016
更新日期：2009-05-01 00:00:00
abstract：:The clock protein PERIOD (PER) displays circadian cycles of accumulation, phosphorylation, nuclear translocation and degradation in Drosophila melanogaster clock cells. One exception to this pattern is in follicular cells enclosing previtellogenic ovarian egg chambers. In these cells, PER remains high and cytoplasmic ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.01.017
更新日期：2009-05-01 00:00:00
abstract：:Although cytolysis of invading organisms is an innate form of immunity used by invertebrates, so far the underlying mechanism remains less explored. The pupal hemolymph of the mosquito Armigeres subalbatus induces an activity that causes hemolysis of human red blood cells (HRBC). This hemolytic activity was inhibited ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.02.007
更新日期：2010-09-01 00:00:00
abstract：:Growth-blocking peptide (GBP) has been purified for the first time from the haemolymph of the host armyworm Pseudaletia separata whose growth is inhibited and shows developmental arrest in the last larval instar stage when parasitized by the parasitoid wasp Cotesia kariyai. GBP naturally occurs in the haemolymph of le...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(98)00017-1
更新日期：1998-09-01 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：:Diapetimorpha introita is an ichneumonid ectoparasitoid of the fall armyworm, Spodoptera frugiperda. Since it has been reported that D. introita wasps reared on an artificial diet exhibit a significantly lower percentage of adult eclosion and fecundity than host-reared wasps, this study was undertaken to elucidate the...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(99)00132-8
更新日期：2000-04-01 00:00:00
abstract：:When non-diapause and diapause pupae of Delia antiqua were exposed to various thermoperiods where thermophase (T) was 25 degrees C and the cryophase (C) was 15 or 20 degrees C (TC(15) or TC(20)) in constant darkness (DD), the majority of both types of flies emerged before the rise in temperature. Eclosion time was del...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(02)00157-9
更新日期：2002-09-01 00:00:00
abstract：:The two-spotted spider mite, Tetranychus urticae was exposed to UV-C (250 nm), UV-B (300 nm), and UV-A (350 nm). In non-diapausing females, the median effective doses for 50% mortality plus escape incidence (ED(50)) were 21 (UV-C) and 104 kJm(-2) (UV-B); those for 50% oviposition rate in continuous darkness-treated mi...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.04.005
更新日期：2009-07-01 00:00:00
abstract：:Interactions between the locust endocrine and immune systems have been studied in vivo in relation to nodule formation and activation of the prophenoloxidase cascade in the haemolymph. Injection of bacterial lipopolysaccharide (LPS) extracted from Escherichia coli induces nodule formation in larval and adult locusts b...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(03)00118-5
更新日期：2003-08-01 00:00:00
abstract：:By single sensillum tip recording technique, in addition to the salt and pH cells found in antennal taste sensilla of some ground beetles earlier, the third chemosensory cell of four innervating these large sensilla was electrophysiologically identified as a sugar cell in the ground beetle Pterostichus aethiops. This ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2006.12.012
更新日期：2007-04-01 00:00:00
abstract：:First generation hybrid males from crosses between the Asian corn borer (ACB), Ostrinia furnacalis, and the "univoltine Z-strain" European corn borer (ECB), Ostrinia nubilalis, were examined with respect to behavioral and physiological responses to ACB and ECB pheromones. The hybrid males often flew to the pheromone o...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.09.005
更新日期：2010-01-01 00:00:00
abstract：:We found that in the flesh fly Neobellieria bullata, vitellogenesis can be inhibited in a dose-dependent way by two injections of 60 microg MK-801/g body mass. In the desert locust Schistocerca gregaria, vitellogenesis can also be fully inhibited but only by repeated injections of 200-400 microg/g body mass. In this s...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2004.07.003
更新日期：2004-10-01 00:00:00
abstract：:Elucidating genes that affect life span or that can be used as biomarkers for ageing has received attention in diverse studies in recent years. Using model organisms and various approaches several genes have been linked to the longevity phenotype. For Drosophila melanogaster those studies have usually focussed on one ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.01.005
更新日期：2013-03-01 00:00:00
abstract：:Female mosquitoes require blood meals to complete oogenesis, or egg development. Current methods of maintaining laboratory colonies of mosquitoes generally rely on the use of whole blood to feed females. Blood feeding protocols require special handling techniques, impart numerous potential health hazards, involve sign...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2014.02.012
更新日期：2014-05-01 00:00:00
abstract：:The parasitic mite Varroa destructor is regarded as the most important parasite of honey bees and plays a fundamental role in the decline of bee colonies observed in the last decade in the Northern hemisphere. Parasitization has a number of detrimental effects on bees, including reduced nursing, which can have importa...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.06.006
更新日期：2018-01-01 00:00:00
abstract：:Last instar larvae of the tobacco budworm, Heliothis virescens F., fail to pupate and have little 20-hydroxyecdysone when parasitized by Toxoneuron nigriceps (Viereck). In this paper, we extend these observations to juvenile hormone (JH) to determine if parasitism by this wasp affects other endocrine systems. To this ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(03)00185-9
更新日期：2003-11-01 00:00:00
