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 and at fourth day it was 244+/-35 microg/fat body. TAG content remained constant until day 13, but it then decreased and, at day 20th it was very low (31+/-4.9 microg/fat body). Radiolabeled free fatty acid was used to follow lipid accumulation by the fat body, as it was previously shown that, in R. prolixus, injected free fatty acids associate with lipophorin, a major hemolymphatic lipoprotein. (3)H-palmitic acid was injected into the hemocoel of R. prolixus females. It disappeared from the hemolymph very rapidly, and radioactivity was incorporated by the fat body. Sixty minutes after injection, radioactivity in the fat body was found mainly in TAGs. The capacity of the fat body to incorporate fatty acids from the hemolymph varied according to the days after blood meal, and it was maximal around the fourth day. Lipophorin binding to specific sites in fat body membrane preparations also showed variation at different days. When membranes obtained from insects at the second, fifth and tenth days were compared, binding was highest at fifth day after feeding.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Pontes EG,Leite P,Majerowicz D,Atella GC,Gondim KCdoi
10.1016/j.jinsphys.2008.02.003subject
Has Abstractpub_date
2008-05-01 00:00:00pages
790-7issue
5eissn
0022-1910issn
1879-1611pii
S0022-1910(08)00032-2journal_volume
54pub_type
杂志文章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...
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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abstract：:Previous studies demonstrate that virgin female adult Helicoverpa armigera (Lepidoptera: Noctuidae) moths exhibit calling behaviour and produce sex pheromone in scotophase from the day after emergence, and that mating turns off both of these pre-mating activities. In the fruit fly Drosophila melanogaster, a product of...
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.08.002
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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
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pub_type： 杂志文章
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2008.06.005
更新日期：2008-07-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.03.031
更新日期：2010-08-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2013.04.004
更新日期：2013-07-01 00:00:00
abstract：:Selenoproteins (containing the 21st proteinogenic amino acid selenocysteine) play important roles throughout all domains of life. Surprisingly, a number of taxa have small selenoproteomes, and Hymenopteran insects appear to have fully lost selenoproteins. Nevertheless, their genomes contain genes for several proteins ...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2014.09.012
更新日期：2014-12-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2010.06.017
更新日期：2010-11-01 00:00:00
abstract：:Ants use their mandibles to manipulate many different objects including food, brood and nestmates. Different tasks require the modification of mandibular force and speed. Besides normal mandible movements the trap-jaw ant Odontomachus features a particularly fast mandible reflex during which both mandibles close synch...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/s0022-1910(98)00118-8
更新日期：1999-03-01 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：:The regulation of caste differentiation is essential to insect eusociality. Termite soldiers are sterile and cannot eat by themselves because they have specialized mouth morphology. Almost all termite species have a soldier caste, and the soldier ratio per colony is maintained at a low level, probably by elaborate reg...
journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2011.03.005
更新日期：2011-06-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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pub_type： 杂志文章
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更新日期：2018-04-01 00:00:00
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pub_type： 杂志文章
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更新日期：1998-02-01 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
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2004.01.002
更新日期：2004-05-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2012-06-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2008-02-01 00:00:00
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pub_type： 杂志文章
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更新日期：2010-05-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：1999-04-01 00:00:00
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pub_type： 杂志文章
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更新日期：2015-05-01 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
