The volatility of an alarm pheromone in male rats. PHYSIOL BEHAV 00(0) 000-000, 2008. We previously reported that an alarm pheromone released from the perianal region of male rats is perceived by the vomeronasal organ and evokes stress-induced hyperthermia and defensive and risk assessment behavior. In addition, we recently reported that the alarm pheromone enhances the acoustic startle reflex (ASR). However, in contrast to our knowledge about such biological aspects of the pheromone, information concerning the physical character of the alarm pheromone is extremely limited. In this study, we investigated the volatility of the alarm pheromone using enhancement of the ASR as an index of the pheromone effect. The alarm pheromone enhanced the ASR when it was presented at a distance of 10 mm but not at 200 mm. In addition, the pheromone effect was observed even after the pheromone was trapped in the adsorbent (Tenax) and then extracted using purified water. These results suggest that the alarm pheromone is both volatile and water soluble.
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http://dx.doi.org/10.1016/j.physbeh.2008.12.006 | DOI Listing |
J Econ Entomol
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State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China.
Insect pheromones are critical chemical signals that regulate intraspecific behavior and play a key role in the dynamic monitoring and control of pest populations. Historically, research on insect pheromones has primarily focused on lipid-based compounds. However, terpenes and terpenoids, which are widely occurring classes of bioactive compounds, also play significant roles in insect pheromone blends.
View Article and Find Full Text PDFPlant Sci
January 2025
School of Life Science, Anhui Agricultural University, Hefei, China. Electronic address:
German chamomile (Matricaria chamomilla L.) is a traditional medicinal aromatic plant, and the sesquiterpenoids in its flowers have important medicinal value. The (E)-β-farnesene (EβF) is one of the active sesquiterpenoid components and is also a major component of aphid alarm pheromones.
View Article and Find Full Text PDFInsects
October 2024
FARMARTEM Group, Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena, s/n, 48940 Leioa, Biscay, Spain.
(Lepeletier, 1836) (Hymenoptera: Vespidae) is a eusocial insect that lives in colonies of hundreds to thousands of individuals, which are divided into castes according to their task: queens, workers, and males. The proper functioning of the colony requires communication between the individuals that make up the colony. Chemical signals (pheromones) are the most common means of communication used by these insects to alarm and differentiate between individuals belonging or not to the colony.
View Article and Find Full Text PDFInsects
September 2024
Department of Chemical Ecology 190t, Institute of Biology, University of Hohenheim, 70599 Stuttgart, Germany.
Insect Sci
September 2024
CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, China.
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