pheromones


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pher·o·mones

(fer'ŏ-mōnz)
A type of ectohormone secreted by an individual and perceived by a second individual of the same species, thereby producing a change in the sexual or social behavior of that individual; first discovered as a sex attractant in insects.
[G. pherō, to carry, + hormaō, to excite, stimulate]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
This may help to improve the program of integrated management of the pest by development of the use of sex pheromones in mating disruptions or trap-and-kill methods.
In 2008, University of California-Riverside researchers figured out the chemical structure of the bug's aggregation pheromone and named it "murgantiol." But they didn't describe the three-dimensional (3-D) arrangement of the chemical components-a property called "stereochemistry." Murgantiol's chemical formula has the potential for 16 different 3-D forms, known as "stereoisomers."
That these flight pheromones may even contaminate line, lures or indeed one's hands while catching fish, is thought by some to be possible, warning those un-caught fish of impending danger.
For many animals, pheromones are mixtures of molecules, or bouquets, acting in synergy when combined in particular proportions (Wyatt, 2003, 2014).
Farmers first began using pheromones with coddling moths in apple and peach orchards in Washington and pomegranate trees in California.
To date, information about the use of nanofibers as vehicles for dispersing insect pheromones are scarce and largely based on the results obtained by Hellmann et al.
In lab tests exposing cabbage moths to the equivalent of LED street lighting, females produced on average only about one- to two-thirds the amounts of their usual seductive pheromone, says ecologist Roy van Grunsven of Wageningen University in the Netherlands.
In terms of revenue, global IPM pheromones market was valued at USD 1,685.3 million in 2013, and is expected to reach USD 2,451.5 million by 2020, growing at a CAGR of 5.5% from 2014 to 2020.
Recent examples of pheromone synthesis: (2) Pheromones with more complicated stereochemistry-bioactivity relationships
To obtain an extract from the sex pheromone gland, females were randomly selected from cages and placed in a freezer at about -20 [degrees]C for 1 min that temporarily immobilized them for manipulation.
In summary, we have developed a new and practical route for the total synthesis of the sex pheromones of O.