Loading...
*  Juvenile hormone
Insect growth regulators Insect growth regulators (IGRs) such as juvenile and moulting hormones or their analogs (juvenoids and ... Roles of Juvenile Hormone in Adult Insects". Advances in Insect Physiology. 26: 1-155. doi:10.1016/S0065-2806(08)60030-2. ... Insect hormones Hartfelder K, Engels W (1998) Curr Top Dev Biol 40:45-77 Bloch G, Wheeler DE, Robinson GE (2002) in Hormones, ... Most insect species contain only juvenile growth hormone (JH) III. To date JH 0, JH I, and JH II have been identified only in ...
*  Insect diuretic hormones
... are hormones that regulate water balance through diuretic action. The insect excretory system, ... "Insect Diuretic and Antidiuretic Hormones". Advances in Insect Physiology 29: 279-409. Furuya, K.; Milchak, R. J.; Schegg, K. M ... "Cockroach diuretic hormones: characterization of a calcitonin-like peptide in insects". Proceedings of the National Academy of ... To date, the only insect for which both diuretic and antidiuretic hormones (acting directly on tubules) have been isolated is a ...
*  East Rajasthan Uplands
Sharma, Pradeep (2008). Insect Hormones. Discovery Publishing House. ISBN 81-8356-290-6. Murty, M. L. K. (2003). Comprehensive ...
*  Juvabione
Hodin, J. (2009). "On the Origins of Insect Hormone Signaling. Phenotypic Plasticity of Insects". Science Pubslishers: 817-839 ... Sesquiterpenes of this family are known as insect juvenile hormone analogues (IJHA) because of their ability to mimic juvenile ... Immediately after insect attack, toxic monoterpenes are released. These provide a volatile solvent for the diterpene resins so ... Figure 1. Abies balsamea Insect herbivores such as bark beetles and their symbiotic fungal pathogens, pose as one of the ...
*  Bracken
Two major insect moulting hormones, alpha ecdysone and 20-hydroxyecdysone, are found in bracken. These cause uncontrollable, ... "Insect Hormones: Alpha Ecdysone and 20-Hydroxyecdysone in Bracken Fern". Science Classic. 157 (3795): 1436-1438. 22 September ... Hydrogen cyanide is released by the young fronds of bracken when eaten by mammals or insects. ... repeated moulting in insects ingesting the fronds, leading to rapid death. Many sites have many archaeological remains dating ...
*  Tetranortriterpenoid
Azadirachtin mimics insect hormones called ecdysones that regulate pupation of insects; application of azadirachtin interrupts ... the development and pupation of insects, which eventually kills them. Azadirachtin is a limonoid.. ...
*  Prothoracicotropic hormone
... (PTTH) was the first insect hormone to be discovered. It was originally described simply as "brain ... Later it was established that the insect brain produces a number of hormones, but the hormone which was the cause of the ... Thus, the brain was originally thought to be the source of the hormone that induces molting in insects. ... which respond by releasing molting hormone (an ecdysteroid) into the haemolymph. Molting hormone stimulates the molting process ...
*  Rhodnius prolixus
The insect was used by Sir Vincent Wigglesworth for the detection of insect hormones. It has been implicated in the ... The insect has five larval stages, with a moult between each. Each larval stage consumes a single large meal of blood, which ... Wigglesworth demonstrated that the moult is started by a hormone secreted into the blood by a gland in the brain. Further it ... Vector epidemiology Female sperm storage Inherited sterility in insects Nitrophorins Hematophagy Hemozoin Proctolin Clément, ...
*  Begging in animals
In this species, juvenile hormone, a major regulatory insect hormone, stimulates begging and growth. Elevating larval juvenile ... hormone levels (by topical application of the analogue methoprene) increase begging indicating that juvenile hormone in insects ... suggesting that the mechanisms by which juvenile hormone affects offspring growth in insects differ from those by which ... Elevated juvenile hormone levels have a negative effect on larval growth regardless of whether larvae forage by begging or by ...
*  Lepidoptera
The first insect hormone prothoracicotropic hormone (PTTH) operates the species life cycle and diapause. This hormone is ... A pheromone trap is a type of insect trap that uses pheromones to lure insects. Sex pheromones and aggregating pheromones are ... Arnett, Ross H. (28 July 2000). "Part I: 27". American insects: a handbook of the insects of America north of Mexico (2nd ed ... 28 July 2000). American Insects. A Handbook of the Insects of America North of Mexico (2 ed.). CRC press LLC. pp. 631-632. ISBN ...
*  Metamorphosis
Neurosecretory cells in an insect's brain secrete a hormone, the prothoracicotropic hormone (PTTH) that activates prothoracic ... In holometabolous insects, molts between larval instars have a high level of juvenile hormone, the moult to the pupal stage has ... In insects growth and metamorphosis are controlled by hormones synthesized by endocrine glands near the front of the body ( ... Experiments on firebugs have shown how juvenile hormone can affect the number of nymph instar stages in hemimetabolous insects ...
*  Dominance hierarchy
Roseler, P.F.; Roseler, I.; Strambi, A.; Augier, R. (1984). "Influence of insect hormones on the establishment of dominance ... Laboratory experiments have shown that when foundresses are injected with juvenile hormone (JH), a hormone responsible for ... Condition-dependent effects on juvenile hormone on dominance and fertility of wasp queens". Hormones and Behavior. 56: 527-531 ... In insect societies, only one to few individuals members of a colony can reproduce, whereas the other colony members have their ...
*  Polistes gallicus
Röseler, Peter-Frank; Ingeborg Röseler; Alain Strambi; Roger Augier (1984). "Influence of Insect Hormones on the Establishment ... Hormones play a role in the establishment of dominance hierarchies among P. gallicus. Dominant females tend to have more ... The first workers take over all the duties in the colony, hunting for preys (larvae are fed with other insects that adults hunt ... Nests of these social insects are created in these various conditions. The Polistes species uses an oral secretion to construct ...
*  Pupa
The processes of entering and completing the pupal stage are controlled by the insect's hormones, especially juvenile hormone, ... "Pupa and Puparium (Insects)". what-when-how. Retrieved 28 April 2016. "Insect Pupal Forms". About.com. Retrieved 28 April 2016 ... prothoracicotropic hormone, and ecdysone. The pupae of different groups of insects have different names such as chrysalis for ... Insects that pupate in a cocoon must escape from it, and they do this either by the pupa cutting its way out, or by secreting ...
*  Bursicon
... is an insect hormone which mediates tanning in the cuticle of adult flies. The molecular structure of the hormone has been ... Fraenkel G, Hsiao C, Seligman M (January 1966). "Properties of bursicon: an insect protein hormone that controls cuticular ... the insect cuticle-hardening hormone, is a heterodimeric cystine knot protein that activates G protein-coupled receptor LGR2". ... Bursicon plays a very important role in insect wing expansion during the last step of metamorphosis: maturation of the wing. At ...
*  Glossary of biology
Insect molting hormones are generally called ecdysteroids. ecological efficiency ecological efficiency describes the efficiency ... ecdysone ecdysone is a steroidal prohormone of the major insect molting hormone 20-hydroxyecdysone, which is secreted from the ... hormone . human nutrition . hydrocarbon An organic compound consisting entirely of hydrogen and carbon atoms. Hydrocarbons from ... abscisic acid A plant hormone with the formula C15H20O4. abscission The shedding of flowers, leaves and/or fruit following ...
*  Calliphora stygia
"AN IMPROVED CALLIPHORA BIOASSAY FOR INSECT MOULTING HORMONES". Australian Journal of Experimental Biology and Medical Science. ... insects can be used instead. Larval secession can aid in determining the time of death through aging the insects that are ... Insects can hold these toxins for months after the tissues disappear. These flies are also affected by weather conditions. The ... Also the presence of drugs can affect the succession rate and relative age on any insects feeding on the flesh of the corpse. ...
*  František Šorm
Finally, he was active in the field of insect juvenile hormones. Šorm was the author or co-author of a large number of ... He also initiated the study of natural peptides, especially neurohypophyseal hormones and their analogues, some of which were ...
*  Achyranthes japonica
The seed contain insect moulting hormones including rubrosterone, ecdysterone, and inokosterone. The root contains ...
*  Ecdysone
Insect molting hormones (ecdysone and its homologues) are generally called ecdysteroids. Ecdysteroids act as moulting hormones ... Ecdysone is a steroidal prohormone of the major insect molting hormone 20-hydroxyecdysone, which is secreted from the ... Recent findings in Chris Q. Doe lab have found a novel role of this hormone in regulating temporal gene transitions within ... Ecdysone receptor PTTH - Metamorphosis Initiator hormone Ecdybase, The Ecdysone Handbook - a free online ecdysteroids database ...
*  Juvenile hormone epoxide hydrolase
... (JHEH) is an enzyme that inactivates insect juvenile hormones. This inactivation is ... Juvenile hormone diol is acted on by juvenile hormone diol kinase, to give juvenile hormone diol phosphate, with the phosphate ... White AF (February 1972). "Metabolism of the juvenile hormone analogue methyl farnesoate 10, 11-epoxide in two insect species ... Insect Biochem. Physiol. 32 (3-4): 527-35. doi:10.1002/(SICI)1520-6327(1996)32:3/4. 3.0.CO;2-D. PMID 8756307. Kallapur VL, ...
*  Allatostatin
Juvenile hormone is synthesised in the corpora allata. In every insect tested, at least one of the three types of Allatostatin ... Allatostatins are neuropeptide hormones in insects and crustacea. They have a twofold function: they both inhibit the ... Stay B, Tobe SS (2007). "The role of allatostatins in juvenile hormone synthesis in insects and crustaceans". Annu. Rev. ... Gäde G, Goldsworthy GJ (2003). "Insect peptide hormones: a selective review of their physiology and potential application for ...
*  Adipokinetic hormone
... (AKH) is a short peptide hormone that has been studied in insects. It is a lipid mobilising hormone and is ... This was the first instance where an insect peptide hormone had been identified. Later, after AKH was identified in cockroaches ... The hormone itself is part of a larger family, often referred to as red pigment concentrating hormones (RPCH) discovered in ... AKH has become an important area of study, particularly in insect crop pests and insects that act as intermediate or vector ...
*  Stefan Kopec
Gerald Litwack books.google.co.uk Insect Hormones Volume 73 of Vitamins and hormones Gulf Professional Publishing, 5 Dec 2005 ... His subsequent scientific activities helped determine the role of the insect brain in hormone production. He was the earliest ... Sláma, Karel, Insect Endocrinology: A Tribute to Stefan Kopeć, from Historical figures in Insect Physiology, University of ... Development of a larval in vivo assay for prothoracicotropic hormone Journal of Insect PhysiologyVolume 38, Issue 11, November ...
*  Corpus allatum
In insect physiology, the corpus allatum (plural: corpora allata) is an endocrine gland which generates juvenile hormone; as ... Vitamins and Hormones: v. 14: Advances in Research and Applications, edited by Richard Harris, 1956, from Elsevier Insect ... 1-10, by M.F. Day Insect Hormones, page 13, by H. Fredrik Nijhout, 1994, Princeton University Press. ... In Lepidoptera species, the corpus allatum acts as a release site for prothoracicotropic hormone which is generated by the ...
*  Dwarf pufferfish
Once one pufferfish begins becoming a male he excretes hormones to prevent the other puffers from becoming male. However, if ... The diet of dwarf pufferfish in the wild mainly consists of small animals such as cladocera, rotifers, copepods and insects, ...