2018
DOI: 10.3389/fphys.2018.00252
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Silencing the Odorant Binding Protein RferOBP1768 Reduces the Strong Preference of Palm Weevil for the Major Aggregation Pheromone Compound Ferrugineol

Abstract: In insects, perception of the environment—food, mates, and prey—is mainly guided by chemical signals. The dynamic process of signal perception involves transport to odorant receptors (ORs) by soluble secretory proteins, odorant binding proteins (OBPs), which form the first stage in the process of olfactory recognition and are analogous to lipocalin family proteins in vertebrates. Although OBPs involved in the transport of pheromones to ORs have been functionally identified in insects, there is to date no repor… Show more

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Cited by 35 publications
(71 citation statements)
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“…The red palm weevil is an invasive species and similar to other insects, it relies mostly on its olfactory system for food foraging and for mating. It uses resistance mechanisms for detoxification of plant secondary metabolites and xenobiotic 33 . We highlight some gene families that are expanded in this context.…”
Section: Tribolium Castaneummentioning
confidence: 99%
See 1 more Smart Citation
“…The red palm weevil is an invasive species and similar to other insects, it relies mostly on its olfactory system for food foraging and for mating. It uses resistance mechanisms for detoxification of plant secondary metabolites and xenobiotic 33 . We highlight some gene families that are expanded in this context.…”
Section: Tribolium Castaneummentioning
confidence: 99%
“…Olfactory gene families are involved in pheromone and odorant detection. They allow R. ferrugineus to locate infected palm trees that emit volatiles in the air, as well as the male aggregate pheromone released to coordinate explosive attacks 33 . The R. ferrugineus genome contains 46 OBP:PBP odorant/pheromone binding proteins (PF01395) and 80 ORs (PF02949).…”
Section: Tribolium Castaneummentioning
confidence: 99%
“…Indeed, the very procedure of identification of pheromones such as 4-methyl-5-nonanol, the pheromone of R. ferrugineus, involves electroantennal detection in which the antennae are exposed to the effluent of a gas chromatograph and exhibit a specific response to the effluent when the pheromone is eluted. Recently, Antony et al (2016Antony et al ( , 2018 provided clear genetic evidence for the molecular basis of detection of the pheromone of R. ferrugineus by its antennae. As our first experiment showed (Figure 2), the present results provide field evidence that the mirrors in the "Internal Emission Chamber" may be removed without impairing the functioning of the Electrap.™.…”
Section: Discussionmentioning
confidence: 99%
“…According to the manufacturer vibrational radiation is emitted from the chamber which then is detected by the insect that is, in turn, attracted to the source of the radiation within the trap (Al-Saroj et al, 2017;Burr, 2002). Although the vibrational radiation theory has been disproven by overwhelming evidence of molecular interaction in insect olfaction (Antony et al, 2016(Antony et al, , 2018Block et al, 2015;Vosshall, 2015), Electrap™ was equivalent in capture to the standard side entry bucket trap used in area-wide Saudi Arabia for mass trapping R. ferrugineus and to a pheromone, kairomone and food baited Picusan™ trap (Al-Saroj et al, 2017;Dhouibi et al, 2017).…”
Section: Introductionmentioning
confidence: 99%
“…Looking for possible alternative control methods, thus, synthetic biology approaches were proposed. Such as disruption of pheromone communication machinery that interrupts the weevil's olfaction to find host and mate, and finally interrupting its reproduction leading to population decline (Antony et al, 2016(Antony et al, , 2018Soffan et al, 2016). Additionally, cuticular proteins such as laccases and others also proposed as important targets for disruption since they function in cuticle hardening to protect insects from environmental stress and mechanical damage.…”
Section: Introductionmentioning
confidence: 99%