Caste-selective pheromone biosynthesis in honeybees.
In particular, queen mandibular pheromone (QMP) slows the transition from nursing to foraging.
Queen mandibular pheromone - Wikipedia
Suberic acid, nonanedioic acid (and its mono-unsaturated derivative:2-nonenedioic acid), decanoic acid (and its mono-unsaturated derivative:2-decenedioic acid) are present in honey () and are of special interest becausethey have long been recognized as part of the pheromone system of the honeybee (). They are producedin the mandibular glands of the queen and the worker honeybees, they regulatetheir activities in the hive.
It was shown that all these dicarboxylic acids are formed during the dryingprocess of and that thedetermination of these decomposition products may be of value in determining theage of old samples.
The higher weight dicarboxylic acids (n=10 to 21) are found in different plant lipids, particularly in what was named erroneously (triglycerides containing C20, 21, 22 and 23 dicarboxylic acids besides normal fatty acids) from the sumach tree (Rhus sp.). Among them, Thapsic acid (n=14) was isolated from the dried roots of the Mediterranean "deadly carrot", Thapsia garganica (Umbelliferae), but others, as Brassylic acid (n=11), were prepared chemically from different sources.
Brassylic acid can be produced chemically from erucic acid by ozonolysis but also by microorganisms () from . This diacid is produced on a small commercial scale in Japan for the manufacture of fragrances.
A review on the applications and the industrial biotechnology of these moleculeshas been released by Kroha K ().
A large survey of the dicarboxylic acids present in Mediterranean nuts revealed unusual components (). A total of 26 minor acids (from 2 in pecan to 8% in peanut) were determined : 8 species derived from butanedioic acid, likely in relation with photosynthesis, and 18 species with a chain from 5 to 22 carbon atoms.
Higher weight acids (>C20) are found in present at vegetal surfaces (outer bark, root epidermis). C16 to C26
Odorant-binding proteins (OBPs) and chemosensory proteins (CSPs) mediate both perception and release of chemical stimuli in insects. The genome of the honey bee contains 21 genes encoding OBPs and 6 encoding CSPs. Using a proteomic approach, we have investigated the expression of OBPs and CSPs in the mandibular glands of adult honey bees in relation to caste and age. OBP13 is mostly expressed in young individuals and in virgin queens, while OBP21 is abundant in older bees and is prevalent in mated queens. OBP14, which had been found in larvae, is produced in hive workers’ glands. Quite unexpectedly, the mandibular glands of drones also contain OBPs, mainly OBP18 and OBP21. We have expressed three of the most represented OBPs and studied their binding properties. OBP13 binds with good specificity oleic acid and some structurally related compounds, OBP14 is better tuned to monoterpenoid structures, while OBP21 binds the main components of queen mandibular pheromone as well as farnesol, a compound used as a trail pheromone in the honey bee and other hymenopterans. The high expression of different OBPs in the mandibular glands suggests that such proteins could be involved in solubilization and release of semiochemicals.
List of honey bee pheromones - Wikipedia
Odorant-binding proteins (OBPs) are involved in perceiving and releasing semiochemicals in insects. They are differentially expressed in the mandibular glands of adult honey bees according to caste and age. The best ligands for selected recombinant proteins were oleic acid for OBP13, some monoterpenoid compounds for OBP14, and farnesol, a trail pheromone, for OBP21. High and different expression of OBPs in mandibular glands suggests a role in semiochemical solubilization and delivery.
Camiletti AL, Awde DN, Thompson GJ 2014. How flies respond to honey bee pheromone: The role of the gene on reproductive response to queen mandibular pheromone. Naturwissenschaften 101: 25-31.
Queen mandibular pheromone: Questions that remain …
These studies demonstrate that pheromone exposure can modify nutrient storage pathways and fat body gene expression in honey bees and suggest that chemical communication and social interactions play an important role in altering metabolic pathways.">
These studies demonstrate that pheromone exposure can modify nutrient storage pathways and fat body gene expression in honey bees and suggest that chemical communication and social interactions play an important role in altering metabolic pathways.
Queen mandibular pheromone's wiki: ..
Queen mandibular pheromone - Revolvy
Queen mandibular pheromone: questions that remain ..
Caste-Selective Pheromone Biosynthesis in Honeybees
1998) elucidated the biosynthetic pathways for the honeybee queen mandibular pheromone ..
Queen mandibular pheromone: questions that remain …
The influence of queen mandibular pheromone on worker attraction to swarm clusters and inhibition of queen …
had been exposed to queen mandibular pheromone ..
Croft JR, Liu T, Camiletti AL, Simon AF, Thompson GJ 2017. Sexual response of male to honey bee queen mandibular pheromone: implications for genetic studies of social insects. Journal of Comparative Physiology - A 203: 143-149.
Queen mandibular pheromone (QMP), emitted by the queen, ..
Honey bees (Apis mellifera L.) are the best known eusocial insect. The defining characteristic of eusocial behaviour is the division of labour along reproductive and non-reproductive lines. Thus, the workers and the queen are female, but only the queen is fertile. The workers perform non-reproductive tasks, along a well-defined age progression: young bees perform non-risky tasks within the nest, while older bees perform risky tasks such as defence and foraging. This intricate social network is regulated by many signals, including chemical signals (pheromones). The queen retinue pheromone, as well as the biosynthesis of the fatty acid components of the queen retinue pheromone have been elucidated. Recent work has revealed that older workers influence the rate at which younger workers progress through their various tasks through a chemical signal.
Definitions of Honey bee pheromones, ..
Camiletti AL, Percival-Smith A, Thompson GJ 2013. Honey bee queen mandibular pheromone inhibits ovary development and fecundity in a fruit fly. Entomologia Experimentalis et Applicata 147: 262-268.
Synthetic queen mandibular pheromone ..
Galang K, Croft J, Thompson GJ, Percival-Smith A (Submitted). Molecular dissection of the Drosophila anti-ovarian response to honey bee queen mandibular pheromone. Insect Molecular Biology
Is the queen mandibular pheromone alone in colony regulation
Furthermore, they could be potential candidates in the treatment of atherosclerosis (., J Nat Prod 2016, 79, 1137). It has been shown that worker bees secrete acids functionalized at the last (w) position, such as 10-hydroxy-2-decenoic acid and its saturated counterpart, while the honeybee queen produces pheromones such as 9-hydroxy-2-decenoic acid, and other acids functionalized at the penultimate (w-1) position ().
Several parent molecules have been described in the royal jelly ().
"I have always been impressed by the quick turnaround and your thoroughness. Easily the most professional essay writing service on the web."
"Your assistance and the first class service is much appreciated. My essay reads so well and without your help I'm sure I would have been marked down again on grammar and syntax."
"Thanks again for your excellent work with my assignments. No doubts you're true experts at what you do and very approachable."
"Very professional, cheap and friendly service. Thanks for writing two important essays for me, I wouldn't have written it myself because of the tight deadline."
"Thanks for your cautious eye, attention to detail and overall superb service. Thanks to you, now I am confident that I can submit my term paper on time."
"Thank you for the GREAT work you have done. Just wanted to tell that I'm very happy with my essay and will get back with more assignments soon."