Abstract：
:Parasites by drawing nutrition from their hosts can exert an energetic stress on them. Honeybee foragers with their high metabolic demand due to flight are especially prone to such a stress when they are infected. We hypothesized that infection by the microsporidian gut parasite Nosema ceranae can lower the hemolymph sugar level of an individual forager and uncouple its energetic state from its normally tight correlation with the colony energetic state. We support our hypothesis by showing that free-flying foragers that are infected have lower trehalose levels than uninfected ones but the two do not differ in their trehalose levels when fed until satiation. The trehalose level of infected bees was also found to decline at a faster rate while their glucose level is maintained at a quantity comparable to uninfected bees. These results suggest that infected foragers have lower flying ability and the intriguing possibility that the carbohydrate levels of an individual bee can act as a modulator of its foraging behavior, independent of social cues such as colony demand for nectar. We discuss the importance of such pathophysiological changes on foraging behavior in the context of the recently observed colony collapses.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Mayack C,Naug Ddoi
10.1016/j.jinsphys.2010.05.016subject
Has Abstractpub_date
2010-11-01 00:00:00pages
1572-5issue
11eissn
0022-1910issn
1879-1611pii
S0022-1910(10)00165-4journal_volume
56pub_type
杂志文章abstract：:The hemocytes phagocytosis in response to microorganisms may play an important role in the cellular immune responses of insects. Here, we have evaluated the effects of the platelet-activating factor (PAF) and eicosanoids in the phagocytosis of hemocyte monolayers of Rhodnius prolixus to the yeast Saccharomyces cerevis...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2007.10.004
更新日期：2008-02-01 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：:Helicoverpa armigera (Lepidoptera, Noctuidae) is an important agricultural pest with a pupal diapause. Cytochrome c oxidase (COX) is a key speed-limited enzyme of oxidative phosphorylation in mitochondria for ATP production. A differentially expressed cDNA fragment encoding COX subunit 1 (cox1) was cloned by different...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.08.023
更新日期：2010-12-01 00:00:00
abstract：:Overwintering adults of the spruce bark beetle, Ips typographus (L.) showed an unusually complex sugar/polyol cryoprotectant system. The major components of the multiple system were: glucose (177.6 mmolL(-1), March); trehalose (175.0 mmolL(-1), December); sorbitol (147.9 mmolL(-1), January); mannitol (81.2 mmolL(-1), ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2007.02.009
更新日期：2007-06-01 00:00:00
abstract：:In independent assays, workers of the ant Camponotus mus were conditioned to visit an arena where they found a large drop of sucrose solution of different concentrations, from 5 to 70% weight on weight (w/w). Single ants were allowed to collect the sucrose solution ad libitum, and feeding time, feeding interruptions, ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(98)00053-5
更新日期：1998-07-01 00:00:00
abstract：:Molecules in male seminal fluid transferred to female insects during mating can have potent effects on their subsequent sexual and reproductive behaviour. Like many other tephritids, female Queensland fruit flies (Bactrocera tryoni) typically have diminished sexual receptivity after their first mating. Also, copulatio...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2006.10.009
更新日期：2007-07-01 00:00:00
abstract：:Parental care is a behavioral strategy that contributes to increased fitness of progeny. Among terrestrial arthropods, many isopods provide extensive parental care. Few studies have quantified the underlying cost of parental care in terms of energy. We used the terrestrial woodlouse Porcellio laevis (Latreille) as a s...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2004.10.005
更新日期：2004-12-01 00:00:00
abstract：:Melanism in insects is important for their physical protection, immunoreactions, and sclerotization. The vetch aphid, Megoura viciae (Buckton), has relatively strong tanning in its prothorax, head, antennae, cornicles, and legs. It was hypothesized that M. viciae may sequester the high level of l-DOPA in its host Vici...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2019.03.007
更新日期：2019-04-01 00:00:00
abstract：:We measured the energy turnover (oxygen consumption) of honeybees (Apis mellifera carnica), which were free to move within Warburg vessels. Oxygen consumption of active bees varied widely depending on ambient temperature and level of activity, but did not differ between foragers (>18 d) and middle-aged hive bees (7-10...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/S0022-1910(03)00148-3
更新日期：2003-09-01 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：:Overwintering freeze-tolerant larvae of Chilo suppressalis can survive at -25 degrees C, but non-diapausing larvae cannot. We reported earlier that to prevent intracellular freezing, which causes death in overwintering larvae of the Saigoku ecotype distributed in southwestern Japan, water leaves and glycerol enters fa...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2007.04.005
更新日期：2007-07-01 00:00:00
abstract：:Thermal tolerance, supercooling point, water balance and osmoregulatory ability of Pringleophaga marioni Viette (Lepidoptera: Tineidae) are investigated in this study. Field-fresh larvae had a mean CT(Min) (cold stupor) of -0.6 degrees C and a mean CT(Max) (heat coma) of 38.7 degrees C. The mean supercooling point of ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(97)00001-2
更新日期：1997-07-01 00:00:00
abstract：:The pierid butterfly Colias croceus (Geoffroy in Fourcroy, 1785), established in the Azores archipelago, is polymorphic with six forms, C. croceus f. croceus ♂ and ♀, C. c. f. cremonae ♂ and ♀, C. c. f. helice ♀, and C. c. f. cremonaehelice ♀. We investigated the optical mechanisms underlying the wing colouration of t...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2020.104114
更新日期：2020-01-01 00:00:00
abstract：:Mating in moths is generally mediated by female-produced sex pheromones. Mating activity, female pheromone production/release and male pheromone responsiveness all show diurnal variations in many species. We found that the response of the male Egyptian cotton leafworm, Spodoptera littoralis, to sex pheromone gland ext...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2004.11.013
更新日期：2005-03-01 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：:The hymenopteran Macrocentrus cingulum usually deposits one egg into the larval body cavity of lepidopteran Ostrinia furnacalis, and the egg subsequently splits into several dozens of embryos during its development. How the parasitoid eggs and embryos avoid encapsulation by the host's immune response remains unknown. ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(03)00021-0
更新日期：2003-04-01 00:00:00
abstract：:Worker honeybees (Apis mellifera) are morphologically four-winged, but are functionally dipterous insects. During flight, their fore- and hindwings are coupled by means of the forewing posterior rolled margin (PRM) and hindwing hamuli. Morphological analysis shows that the PRM can be connected to the hamuli, so that t...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2019.103936
更新日期：2019-10-01 00:00:00
abstract：:The internal physiological state of a mother can have major effects on her fitness and that of her offspring. We show that maternal effects in the parasitic wasp Eupelmus vuilleti become apparent when old mothers provision their eggs with less protein, sugar and lipid. Feeding from a host after hatching allows the off...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.07.011
更新日期：2017-08-01 00:00:00
abstract：:In ants, both cuticular and postpharyngeal gland (PPG) hydrocarbons (HCs) have been involved in nestmate recognition. However, no detailed comparison is available. A comparative study including also high density lipophorin (HDLp), an internal HC carrier, was therefore undertaken on Pachycondyla villosa. Purified HDLp ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2004.04.006
更新日期：2004-07-01 00:00:00
abstract：:Recent studies in fruit flies have imposed dietary restriction (DR) by diluting yeast and have reported increased lifespan as the yeast-to-sugar ratio decreased. In this study, the effects of DR on the lifespan of Bactrocera dorsalis were investigated using constant-feeding diets with different yeast:sugar ratios and ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.07.006
更新日期：2013-10-01 00:00:00
abstract：:Protease inhibitors (PIs) have been shown to cause lethal and sublethal effects on aphids depending on the kind of PI and aphid species. Therefore, these proteins might affect aphid parasitoids directly by inhibiting their digestive proteolysis or indirectly via their development in a less suitable host. In our study,...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2005.04.009
更新日期：2005-08-01 00:00:00
abstract：:MicroRNAs (miRNA) participate in regulating diverse biological pathways by translational repression in animals. They have attracted increasing attention recently. However, little work has been done on the miRNA genes in agriculturally important pests. Because the transcripts of most miRNA genes are the products of typ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.07.007
更新日期：2010-12-01 00:00:00
abstract：:Although scientists know that overheating kills many organisms, they do not agree on the mechanism. According to one theory, referred to as oxygen- and capacity-limitation of thermal tolerance, overheating occurs when a warming organism's demand for oxygen exceeds its supply, reducing the organism's supply of ATP. Thi...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2020.104157
更新日期：2020-01-01 00:00:00
abstract：:The biogenic amine octopamine and the pentapeptide proctolin are two important neuroactive chemicals that control contraction of the oviducts of the African locust Locusta migratoria. The physiological responses and signal transduction pathways used by octopamine and proctolin have been well characterized in the locus...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(99)00170-5
更新日期：2000-05-01 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：:Bactrocera dorsalis is a destructive fruit-eating pest that causes severe economic damage to the fruit and vegetable industry. Methyl eugenol (ME) has been widely used as an effective sexual attractant for male fruit flies through olfactory perception. However, the molecular mechanism underlying the olfactory percepti...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2012.05.011
更新日期：2012-08-01 00:00:00
abstract：:Nine-day-old decapitated females injected with different doses of Hez-PBAN produced significantly less pheromone than 1-day-old individuals, suggesting that the age-related decline in the pheromone titre of Choristoneura fumiferana and C. rosaceana virgin females was primarily the result of a reduced ability of the gl...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(02)00252-4
更新日期：2003-01-01 00:00:00
abstract：:Elucidating the mechanisms by which honey bees process pollen vs. protein supplements are important in the generation of artificial diets needed to sustain managed honeybees. We measured the effects of diet on protein concentration, hypopharyngeal gland development and virus titers in worker honey bees fed either poll...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.03.017
更新日期：2010-09-01 00:00:00
abstract：:Aquatic insects play critical roles in freshwater ecosystems and temperature is a fundamental driver of species performance and distributions. However, the physiological mechanisms that determine the thermal performance of species remain unclear. Here we used a metabolomics approach to gain insights into physiological...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.07.008
更新日期：2017-08-01 00:00:00
abstract：:The flightless bug Pyrrhocoris apterus (L.) is polymorphic for both wing length and flight muscle development. The developed flight muscles of macropterous adults of both sexes first enlarge their volume during the first 5 days after adult emergence, but are then histolyzed in all males and females older than 10 and 1...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2005.10.009
更新日期：2006-03-01 00:00:00
