In a project of analyzing corpora cardiaca extracts from two fly species, two different moths, a termite and a beetle for their AKHs, we noted specific patterns in the fragmentation spectra of octapeptides in electrospray Q-TOF experiments resulting from the presence of Pro in position 6. (bvsalud.org)
The adipokinetic hormone (AKH-I and AKH-II) content of the corpora cardiaca from adult males of crowded (gregarious) and isolated (solitary) Locusta migratoria migratorioides (Reiche and Fairmaire) was quantified by reverse-phase high-performance liquid chromatography. (tau.ac.il)
Significantly less total hormone was found in the corpora cardiaca of crowded locusts than in those glands of isolated locusts at the age of 12-19 days after fledging. (tau.ac.il)
From the age of 12-19 days to that of 25-30 days, AKH content increased significantly in the corpora cardiaca of crowded locusts, but no such increase was found in the glands of isolated locusts, and at 25-30 days there were no significant differences in the AKH content of the glands from crowded and isolated locusts. (tau.ac.il)
Allatotropin- and allatostatin-immunoreactive cell bodies in the brain projected their axons into corpora allata without terminations in the corpora cardiaca. (korea.ac.kr)
Thus, Ziegler (1984) and Siegert and Mordue (1994) showed that the response to injections of extracts from corpora cardiaca or AKH depends on the age of the animal during late larval development. (123dok.com)
Juvenile6
Juvenile hormones are secreted by a pair of endocrine glands behind the brain called the corpora allata. (wikipedia.org)
The primary control of juvenile hormone is by 1) the stimulation of the corpora allata by allatotropins short peptides which bind to G-protein coupled receptors, which signal the glands to produce JH, and 2), the inhibition of JH production by allatostatins. (wikipedia.org)
Implantation of corpora allata into last larval instars will boost JH levels and hence produce a supernumerary (extra) juvenile instar etc. (wikipedia.org)
In insects, the transition from juvenile development to the adult stage is controlled by juvenile hormone (JH) synthesized from the corpora allata (CA) glands. (nature.com)
Using a high-throughput approach to measure summiting, we discovered that summiting behavior is characterized by a burst of locomotion and requires the host circadian and neurosecretory systems, specifically DN1p circadian neurons, pars intercerebralis to corpora allata projecting (PI-CA) neurons and corpora allata (CA), the latter being solely responsible for juvenile hormone (JH) synthesis and release. (bvsalud.org)
Strangely, workers with their corpora allata removed, thus lacking the ability to synthesize any juvenile hormone at all, still foraged earlier when infected with Nosema. (msu.edu)
Methoprene1
Hormonal control of the division of labor in adult honeybees (Apis mellifera L.). I. Effect of methoprene on corpora allata and hypopharyngeal gland, and its α-glucosidase activity. (drawwing.org)
Cardiacum2
These efforts assisted in the analysis workflow and led to the assignment of two novel AKHs and evidence for the presence of Melme-CC and Dorpa-AKH in the corpus cardiacum of the scarab beetle Sinodendron cylindricum. (bvsalud.org)
in invertebrates (Axelrod and Saavedra, 1977), which acts both as a neurotransmitter, modulating the release of AKH from the corpus cardiacum (Passier et al. (123dok.com)
Endocrine1
As a crucial endocrine factor, JH is mainly synthesized in the corpora allata (CA) to regulate multiple physiological and developmental processes, including molting, metamorphosis, and reproduction. (bvsalud.org)
Adult1
Generally, the removal of the corpora allata from juveniles will result in a diminutive adult at the next moult. (wikipedia.org)
Release1
Experiments conducted in Mythimna unipuncta (true armyworm moth) and Agrotis ipsilon (black cutworm moth) have shown that removing the corpus allata, which secretes JH, stops all release of sex pheromone. (wikipedia.org)
Allatum1
Thin layer chromatography showed that products of the corpus allatum (CA) comigrated with a synthetic sample of JH III bisepoxide but neither with JH III nor methylfarnesoate. (bioone.org)
Insect1
When the corpora allata of the third instar insect were removed, the level of JH was equal in both insects to that in the fourth instar animal, and hence both proceeded to the fifth instar at the next moult. (wikipedia.org)
Juvenile hormone1
The primary control of juvenile hormone is by 1) the stimulation of the corpora allata by allatotropins short peptides which bind to G-protein coupled receptors, which signal the glands to produce JH, and 2), the inhibition of JH production by allatostatins. (wikipedia.org)
Brain1
Juvenile hormones are secreted by a pair of endocrine glands behind the brain called the corpora allata. (wikipedia.org)