Abstract：
:The intracellular elemental concentrations of K, Na, Cl, P, Mg and Ca within Type I cells of the Malpighian tubules of Locusta migratoria have been measured using electron probe X-ray microanalysis. The distribution of Na, K and Cl was not homogeneous within the cells and concentration gradients exist from basal to apical surfaces. The rate of secretion and the cationic composition of the secreted tubule fluid have also been determined. Furosemide (1 mM) inhibited fluid secretion by about 60%, raised the [Na(+)] but did not significantly alter the [K(+)] of the secreted tubule fluid. When Rb(+) replaced K(+) in the saline fluid secretion was also inhibited by about 60%, but no additional inhibition occurred by the simultaneous inclusion of furosemide. Thus, Rb(+) and furosemide probably act at the same transport site, and Rb(+) cannot substitute for K(+) at the basal membrane cotransporter. Bafilomycin (1 µM) dramatically inhibited fluid production by 85%, the [K(+)] of the secreted fluid was reduced by about 30% but the [Na(+)] was almost doubled. Furosemide, in common with other inhibitors of fluid secretion acting at the basal surface (ouabain and Rb(+)), caused a fall in intracellular [K] and a rise in [Na]. Bafilomycin, in common with N-ethyl maleimide, which acts at the apical surface, increased the intracellular [K] but did not affect the [Na].
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Hopkin R,Anstee JH,Bowler Kdoi
10.1016/s0022-1910(00)00131-1keywords:
subject
Has Abstractpub_date
2001-04-01 00:00:00pages
359-367issue
4-5eissn
0022-1910issn
1879-1611pii
S0022191000001311journal_volume
47pub_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：:The potato leafhopper, Empoasca fabae, is a pest of economic crops in the United States and Canada, where it causes damage known as hopperburn. Saliva, along with mechanical injury, leads to decreases in gas exchange rates, stunting and chlorosis. Although E. fabae saliva is known to induce plant responses, little kno...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2012.10.002
更新日期：2012-12-01 00:00:00
abstract：:Simultaneous extracellular recordings from both locust abdominal connectives show a differential activation of both bilateral homologues of an identified long projection interneuron (A4I1) in response to wind stimuli from different directions. Despite the previously shown extensive structural dynamics of sensory affer...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(00)00078-0
更新日期：2000-12-01 00:00:00
abstract：:The effect of using acaricides to control varroa mites has long been a concern to the beekeeping industry due to unintended negative impacts on honey bee health. Irregular ontogenesis, suppression of immune defenses, and impairment of normal behavior have been linked to pesticide use. External stressors, including par...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.12.011
更新日期：2012-05-01 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：:Resting potentials in Apis mellifera and Drosophila melanogaster flight muscles decrease with falling temperatures. When resting potentials fall to between -37 and -45 mV they activate a final burst of spontaneous muscle action potentials (MAPs). This final burst of MAPs marks the beginning of chill-coma for each spec...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(99)00148-1
更新日期：2000-05-01 00:00:00
abstract：:Classical studies have described in detail the complex and regionalized morphology of the Malpighian tubule (MT) in larval Lepidoptera. Recent studies revealed unusual aspects of ion transport in the Malpighian tubules of the larva of the cabbage looper, Trichoplusia ni. These included: cation reabsorption via seconda...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.06.005
更新日期：2018-01-01 00:00:00
abstract：:Insect molting and metamorphosis are controlled by the molt stimulating hormone ecdysone. A recent study suggests that reduced tissue oxygenation correlates with the size-sensing mechanism responsible for triggering molting. When reared in hypoxia, larvae of Manduca sexta and Drosophila melanogaster initiate molting a...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2015.02.009
更新日期：2015-05-01 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：:Most epithelia contain multiple cell types that interact to perform the roles required of the tissue. In insect epithelia, the apical plasma membrane V-ATPase dominates ion-transport models, and (as in vertebrates) is usually found in specialized intercalated cell types or regions. The Malpighian tubules of several in...
journal_title：Journal of insect physiology
pub_type： 杂志文章,评审
doi：10.1016/j.jinsphys.2011.12.003
更新日期：2012-04-01 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：:Lepidopteran males produce eupyrene (nucleate) and apyrene (anucleate) spermatozoa, but in the female only eupyrene spermatozoa leave the spermatheca and fertilize the eggs. Both kinds of spermatozoa lack intrinsic motility in the male genital duct. They become motile in the spermatophore, in a process involving prote...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(00)00109-8
更新日期：2001-03-01 00:00:00
abstract：:The action of juvenile hormone (JH) and JH mimics have been examined in vitro by utilizing the imaginal disc-derived cell line, IAL-PID2. We have discovered that the cell line was responsive to JH and a variety of JH mimics. The most consistent response obtained in our studies was inhibition of cell proliferation, in ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(99)00178-x
更新日期：2000-03-01 00:00:00
abstract：:A primary cell culture was developed for efferent dorsal unpaired median (DUM) neurons of the locust. The isolated somata were able to generate Tetrodotoxin (TTX)-sensitive action potentials in vitro. The alpha-like scorpion toxin BmK M1, from the Asian scorpion Buthus martensi Karsch, prolonged the duration of the ac...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(02)00263-9
更新日期：2003-02-01 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：:Identification of chitin in sensory hairs of olfactory sensilla of silkmoths was performed using two independent methods. Firstly, ultrathin sections were labelled with gold-conjugated wheat germ agglutinin and showed positive labelling in the cuticule of sensilla as well as in the antennal cuticle. Secondly, isolated...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(99)00066-9
更新日期：1999-08-01 00:00:00
abstract：:Irradiation has been widely used in suppression or eradication programs that use the sterile insect technique (SIT) or in studying sperm competition. Although it is well known that irradiation has negative impacts on reproductive (sperm) cells, previous studies have assumed that sperm from irradiated males behave iden...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.05.010
更新日期：2009-09-01 00:00:00
abstract：:The effects of deprivation of oviposition substrate on food consumption and egg production were compared between the long-winged (LW) and the short-winged (SW) morph of a cricket, Modicogryllus confirmatus, to determine how suppressed oviposition activity would influence these traits in each wing morph. Food consumpti...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(00)00094-9
更新日期：2001-01-01 00:00:00
abstract：:Many plant-parasite interactions that include major plant resistance genes have subsequently been shown to exhibit features of gene-for-gene interactions between plant Resistance genes and parasite Avirulence genes. The brown planthopper (BPH) Nilaparvata lugens is an important pest of rice (Oryza sativa). Historicall...
journal_title：Journal of insect physiology
pub_type： 杂志文章,评审
doi：10.1016/j.jinsphys.2015.12.001
更新日期：2016-01-01 00:00:00
abstract：:Queens of the primitively eusocial wasp Ropalidia marginata appear to maintain reproductive monopoly through pheromone rather than through physical aggression. Upon queen removal, one of the workers (potential queen, PQ) becomes extremely aggressive but drops her aggression immediately upon returning the queen. If the...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.11.014
更新日期：2011-02-01 00:00:00
abstract：:Dormancy is a developmental arrest in arthropods, in response to unfavorable conditions in temporally varying environments. In Aedes aegypti, the supposed inability of eggs to inhibit hatching has been used to explain the restriction of this species to tropical and subtropical regions. However, the geographic range of...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2019.05.005
更新日期：2019-01-01 00:00:00
abstract：:Antimicrobial peptides (AMPs) are conserved cationic peptides which act both as defense molecules of the host immune system and as regulators of the commensal microbiome. Expression of AMPs is induced in response to infection by the Toll and Imd pathway. Under non-infected conditions, the transcription factor dFOXO di...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2014.04.006
更新日期：2014-10-01 00:00:00
abstract：:Diapause is an alternate developmental pathway that is regulated by the neuroendocrine system in insects. To date, much of the information that has been published regarding the possible molecular events associated with diapause have been at the level of transcription. However, since transcription and translation are n...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.03.022
更新日期：2011-05-01 00:00:00
abstract：:Temperature can modulate the responses of ectotherms to environmental stressors, such as food shortage. Temperature-mediated plasticity in starvation resistance can arise by changes in the amount of energy stored, the speed of energy expenditure, or the threshold energy reserves required for survival. However, few stu...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.08.004
更新日期：2018-10-01 00:00:00
abstract：:The adrenergic agonists octopamine, tyramine and clonidine inhibited the normal pheromonotropic action due to PBAN (pheromone biosynthesis activating neuropeptide) in incubations of intersegmental tissues that are situated between the 8th and 9th abdominal segments of the moth ovipositor tip. This inhibition was rever...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(96)00088-1
更新日期：1997-03-01 00:00:00
abstract：:RATES OF WATER LOSS WERE DETERMINED FOR FOUR COLEOPTERA SPECIES: the herbivores Hydromedion sparsutum, Perimylops antarcticus (Family Perimylopidae) and the carnivores Trechisibus antarcticus, Oopterus soledadinus (Family Carabidae) collected during summer from a range of terrestrial habitats at South Georgia. A recor...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(97)00055-3
更新日期：1997-10-01 00:00:00
abstract：:Thioredoxin peroxidase (Tpxs) plays an important role in maintaining redox homeostasis and in protecting organisms from the accumulation of toxic reactive oxygen species (ROS). Here, we isolated a mitochondrial thioredoxin peroxidase gene from Apis cerana cerana, AccTpx-3. The open reading frame (ORF) of AccTpx-3 is 7...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2012.11.005
更新日期：2013-03-01 00:00:00
abstract：:Insect guts harbor diverse microbial assemblages that can be influenced by multiple factors, including gut physiology and interactions by the host with its environment. The Asian longhorned beetle (A. glabripennis; Cerambycidae: Lamiinae) is an invasive tree-killing insect that harbors a diverse consortium of fungal a...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.08.003
更新日期：2017-10-01 00:00:00
abstract：:Pepck is a metabolic enzyme that participates in gluconeogenesis through the conversion of oxaloacetate into phosphoenol pyruvate. Numerous transcriptomic studies have identified Pepck as a potential key player during diapause and various stresses responses. Here, we describe expression patterns of both cytosolic and ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.10.008
更新日期：2018-01-01 00:00:00
abstract：:Pseudacteon tricuspis, Pseudacteon obtusus and Pseudacteon curvatus are three species of parasitic phorid flies (Diptera: Phoridae), which have been introduced as classical biological control agents of imported, Solenopsis fire ants (Hymenoptera: Formicidae) in the southern USA. Previous studies demonstrated the behav...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.08.010
更新日期：2013-11-01 00:00:00
