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, Coleomegilla maculata, whether suitability of these pollens was related with their sterol profiles, and how augmenting sterols (beta-sitosterol, cholesterol, or ergosterol) affected the fitness and performance of C. maculata. Preimaginal survival, development rates, the duration of the pre-oviposition period, post-mortem adult dry weight, adult hind tibial length, sex ratio, fecundity, cohort generation time (T(c)), net replacement rate (R(0)) and intrinsic rate of increase (r) were measured. Individual sterols in the pollens were quantified using GC-MS. Pollens were of variable suitability for C. maculata; the development rate was positively correlated with the amount of 24-methylene-cholesterol and r was positively correlated with episterol and 24-methylene-lophenol found in the pollens. Performance of C. maculata was entirely unaffected by augmenting pollen meals with sterols. This research shows that pollens clearly vary in their sterol contents intraspecifically, which affects their suitability for omnivores that rely on pollen. However, sterols appear to be only one of the limiting nutrients in pollens.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Pilorget L,Buckner J,Lundgren JGdoi
10.1016/j.jinsphys.2009.09.006subject
Has Abstractpub_date
2010-01-01 00:00:00pages
81-7issue
1eissn
0022-1910issn
1879-1611pii
S0022-1910(09)00319-9journal_volume
56pub_type
杂志文章abstract：:The way energy resources are used under variable environmental conditions lies at the heart of our understanding of resource management and opportunism in many organisms. Here we sought to determine how a time-limited, synovigenic and polyphagous insect with a high reproductive-potential (Anastrephaludens), copes beha...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.08.001
更新日期：2011-12-01 00:00:00
abstract：:Butterfly wing color-patterns are a phenotypically coordinated array of scales whose color is determined as cellular interpretation outputs for morphogenic signals. Here we investigated distribution patterns of scale shape and size in relation to position and coloration on the hindwings of a nymphalid butterfly Junoni...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2008.11.006
更新日期：2009-02-01 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：:Polydnaviruses are unique because of their obligatory association with thousands of parasitoid wasp species from the braconid and ichneumonid families of hymenopterans. PDVs are injected into the parasitized hosts and are essential for parasitism success. However, polydnaviruses are also unique because of their genome...
journal_title：Journal of insect physiology
pub_type： 杂志文章,评审
doi：10.1016/s0022-1910(03)00058-1
更新日期：2003-05-01 00:00:00
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：:Heat is the principal host-associated cue for the blood-sucking bug Rhodnius prolixus. It is both necessary and sufficient to trigger the "proboscis extension response" (PER), an essential element of the feeding behaviour of this insect. The aim of this study was to determine whether the temperature of an object itsel...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.07.012
更新日期：2011-10-01 00:00:00
abstract：:The study of copulation and the control of egg production in the blood-feeding insect, Rhodnius prolixus, continues to offer a fertile ground for the cultivation of new insights into the physiological processes associated with reproduction. We begin this paper by describing the male organs of copulation showing that t...
journal_title：Journal of insect physiology
pub_type： 杂志文章,评审
doi：10.1016/j.jinsphys.2016.06.001
更新日期：2017-01-01 00:00:00
abstract：:Honey bees have brain structures with specialized and developed systems of communication that account for memory, learning capacity and behavioral organization with a set of genes homologous to vertebrate genes. Many microtubule- and actin-based molecular motors are involved in axonal/dendritic transport. Myosin-Va is...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.06.005
更新日期：2011-09-01 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：:Haemocytes play crucial roles in immune responses and survival in insects. Specific cell markers have proven effective in clarifying the function and haematopoiesis of haemocytes. The silkworm Bombyx mori is a good model for studying insect haemocytes; however, little is known about haemocyte-specific markers or their...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2014.10.007
更新日期：2014-12-01 00:00:00
abstract：:During the last decade, populations of flightless Mormon crickets Anabrus simplex (Orthoptera: Tettigoniidae) increased suddenly over vast areas of the Western United States, suggesting that climate is an important factor driving outbreaks. Moreover summer temperatures are predicted to increase and precipitation is ex...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2014.05.005
更新日期：2014-06-01 00:00:00
abstract：:Honey bees will learn to respond to an odor when their antennae are stimulated with sucrose, even if they are not fed during the conditioning phase. However, if they are not fed, the memory of this association is significantly reduced 24 h after conditioning. These results suggest that stimulation of proboscis with su...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.04.014
更新日期：2018-01-01 00:00:00
abstract：:The presence of two spectral mechanisms, near-ultraviolet and green (lambda(max)=545nm), is strongly suggested by electroretinographic visual spectral sensitivity curves obtained under dark and red chromatic adaptation conditions in the compound eyes of the click beetle Pyrophorus punctatissimus. The bioluminescence e...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(99)00224-3
更新日期：2000-07-01 00:00:00
abstract：:Animal-pollinated plants face a common problem, how their defensive anti-herbivore compounds may impair or alter pollinator behavior. Evolution has tailored multiple solutions, which largely involve pollinator tolerance or manipulation, to the benefit of the plant, not the removal of these compounds from pollen or nec...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2020.104177
更新日期：2021-01-01 00:00:00
abstract：:Endoparasitoid insects have evolved mechanisms to counteract host immune defences. At oviposition, the endoparasitoid Venturia canescens injects virus-like particles (VLPs) together with the egg that interfere with the immune system of the host. These prevent encapsulation of the parasitoid egg. It has been shown that...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2003.09.001
更新日期：2003-12-01 00:00:00
abstract：:Drosophila seminal fluid proteins elicit physiological and behavioral changes in the female after mating. For example, the seminal protein sex peptide (SP) causes females to lay more eggs, reduce receptivity to re-mating, consume more food and produce more concentrated excreta upon mating. It has been reported that SP...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.07.001
更新日期：2013-10-01 00:00:00
abstract：:Venom from the ectoparasitic wasp Nasonia vitripennis induces cellular injury that appears to involve the release of intracellular calcium stores via the activation of phospholipase C, and culminates in oncotic death. A linkage between release of intracellular Ca2+ and oncosis has not been clearly established and was ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2004.05.002
更新日期：2005-02-01 00:00:00
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 ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.05.016
更新日期：2010-11-01 00:00:00
abstract：:Apolygus lucorum (Meyer-Dür) (Hemiptera: Miridae) is an agronomically important pest that causes severe economic damage to the cotton, fruit, and vegetable industries. Similar to other insects, A. lucorum can perceive and discriminate olfactory cues. A highly conserved and broadly expressed olfactory coreceptor (Orco)...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.10.006
更新日期：2014-01-01 00:00:00
abstract：:In abdominal muscles 202 and 203 of the cricket, Gryllus bimaculatus, large and small excitatory junctional potentials (l- and s-EJPs) with similar durations can be recorded from the same muscle fibers. At the normal extracellular calcium ion concentration ([Ca(2+)](o)) of 5mM, the amplitudes of l-EJPs in both muscles...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(96)00087-x
更新日期：1997-02-21 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：:Balanced nutrition is fundamental to health and immunity. For herbivorous insects, nutrient-compositional shifts in host plants due to elevated atmospheric CO2 concentrations and temperature may compromise this balance. Therefore, understanding their immune responses to such shifts is vital if we are to predict the ou...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2015.12.002
更新日期：2016-02-01 00:00:00
abstract：:Protapion trifolii and P. fulvipes (Coleoptera: Brentidae) are major pests in European clover seed production. Previous studies have reported a high host plant fidelity of these weevils for red and white clover species, respectively, driven by host plant olfactory cues. Given the specific host preferences observed in ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2019.103948
更新日期：2019-01-01 00:00:00
abstract：:An important component of South Africa's malaria elimination agenda is identifying the entomological drivers of residual transmission, especially those that present opportunities for enhanced vector control. Seasonal mosquito density correlates directly with malaria transmission in South Africa. Transmission is highes...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2019.103942
更新日期：2019-10-01 00:00:00
abstract：:During holometabolous insect development the critical weight marks a physiological transition after which juvenile hormone (JH) concentration decreases to such a level that a subsequent increase in ecdysone titer will initiate metamorphosis. Starvation experiments indicate that the Aedes aegypti critical weight is ach...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2006.09.014
更新日期：2007-01-01 00:00:00
abstract：:Endoparasitoid wasps develop at the expense of other insects, leading to their death. Eggs deposited inside the host body induce an immune response, which results in the formation of a melanized cellular capsule around the egg. To evade or counteract this response, endoparasitoids have evolved different strategies, th...
journal_title：Journal of insect physiology
pub_type： 杂志文章,评审
doi：10.1016/j.jinsphys.2012.10.013
更新日期：2013-02-01 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：: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 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：:Wings and legs of the gregarious desert locust, Schistocerca gregaria have been shown to be release sites of phenylacetonitrile (PAN), the major adult male-produced pheromone. However, there is limited information on the distribution of PAN within the locust. Here we show, using gas chromatography-mass spectrometry (G...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2012.03.012
更新日期：2012-08-01 00:00:00
