Secretory mechanisms for the male produced aggregation pheromone of the palm weevil Rhynchophorus palmarum L. (Coleoptera: Curculionidae)

Sánchez, Pedro; Cerda, Hugo; Cabrera, Aivlé; Caetano, Flávio Henrique; Materán, María Elena; Sánchez, Fredi; Jaffé, Klaus

doi:10.1016/s0022-1910(96)00039-x

Cited by 24 publications

(13 citation statements)

References 16 publications

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“…This suggests that pheromone production is initiated minutes after weevils are stimulated with ethyl acetate. Futher experiments with this species showed that pheromones are produced and constantly released once weevils are exposed to ethyl acetate (Sánchez et al 1996). The results of this study are not easy to interpret, because the weevils were allowed to feed before being stimulated with ethyl acetate.…”

Section: Discussionmentioning

confidence: 74%

“…Another possibility is that males were not in contact with food long enough to begin pheromone release. R. palmarum males initiated pheromone release minutes after being stimulated by ethyl acetate (Sánchez et al 1996). If the same is true for S. acupuncatus males, time seems to be an unlikely explanation, because the males were in contact with food for at least 36 h before being sampled.…”

Section: Discussionmentioning

confidence: 98%

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Factors Affecting Pheromone Release byScyphophorus acupunctatus(Coleoptera: Curculionidae)

et al. 2009

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Scyphophorus acupuncatus Gyllenhal is considered to be the most significant pest of cultivated agaves in the world. Recent studies on the chemical ecology of this weevil have shown that males release a pheromone that attracts both sexes. In this study, we investigated the effect of feeding, aging, photoperiod, and time of day on pheromone release by S. acupuncatus males under laboratory conditions. The pheromone released by individual males was sampled using solid-phase microextraction and analyzed by gas chromatography-coupled mass spectrometry. Our results show that food is an important factor because weevils deprived of plant material did not release any pheromone. In addition, we found that males fed with apple, a nonhost plant, released less pheromone than weevils fed with agave. Host odor does not seem to be important in stimulating pheromone release. We found that males as young as 1 mo were able to release pheromone, although the numbers of individuals releasing pheromone increased with age. Older males released more pheromone than younger males. We found that S. acupuncatus males released pheromone during the photophase and scotophase; there was, however, no significant peak in pheromone release. Also, the pheromone released by S. acupunctatus was not affected by the length of the photoperiod.

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Section: Discussionmentioning

confidence: 74%

Section: Discussionmentioning

confidence: 98%

Factors Affecting Pheromone Release byScyphophorus acupunctatus(Coleoptera: Curculionidae)

et al. 2009

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“…1 and 2). However, was the attraction a result of induction of plant volatiles (Loughrin et al 1995(Loughrin et al 1996(Loughrin et al , 1997, induction of the feeding beetles (Sánchez et al 1996), or to the immediate release of volatiles from insect-damaged cells? Bolter et al (1997) illustrated that Colorado potato beetles are initially attracted to the volatiles from damaged cells, but become attracted to induced plant volatiles after an incubation period.…”

Section: Discussionmentioning

confidence: 99%

Aggregation and Male Attraction to Feeding Virgin Females inMacrodactylus subspinosus(F.) (Coleoptera: Scarabaeidae: Melolonthinae)

Heath¹,

Williams²,

Phelan³

2002

Environ Entomol

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“…In the desert locust S. gregaria, male-specific body volatiles can be used to induce aggregation, accelerate maturation or repel other conspecific males for mate guarding (Mahamat et al, Li andZhang 9175 1993, 2000;Torto et al, 1994;Seidelmann and Ferenz, 2002;Rono et al, 2008). In several Coleoptera species, aggregating or sex signals are produced only by males (Ramirez-Lucas et al, 1996;Sánchez et al, 1996;Wakefield et al, 2005;Vidal et al, 2010). In other insects, 2-heptanone has been found to have important bioactivity.…”

Section: Discussionmentioning

confidence: 99%

Indication of bioactive candidates among body volatiles of gregarious adult locusts Locusta migratoria manilensis by electroantennography (EAG) test

Li¹,

Zhang²

2011

Afr. J. Biotechnol.

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Gregarious adult locusts are believed to release many bioactive volatiles from their bodies for the mediation of their biological characteristics. The determination of these bioactive body volatiles can contribute to the development of new, environmentally benign methods of locust control. An important locust, Locusta migratoria manilensis is an extremely destructive agricultural pest in China. Body volatiles of gregarious L. m. manilensis adults were found to be involved in mediation of aggregation behavior, but bioactive components in the body volatiles had not been indicated. In this study, four compounds were identified from body volatiles of gregarious L. m. manilensis adults using gas chromatography-mass spectrometry analysis: 2-hexanone, butyl acetate and α-pinene from both sexes and 2-heptanone from males only. The electroantennography (EAG) test indicated that gregarious adult males and females had the same EAG response pattern to these compounds. 2-Hexanone, 2-heptanone and butyl acetate elicited dose-dependent responses, which are considered as bioactive candidates among body volatiles. The two ketones, 2-hexanone and 2-heptanone, were the strongest olfactory stimuli for gregarious L. m. manilensis adults. The contribution of these EAG-active compounds to the mediation of aggregation or other behaviors still remains to be further investigated.

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Secretory mechanisms for the male produced aggregation pheromone of the palm weevil Rhynchophorus palmarum L. (Coleoptera: Curculionidae)

Cited by 24 publications

References 16 publications

Factors Affecting Pheromone Release byScyphophorus acupunctatus(Coleoptera: Curculionidae)

Factors Affecting Pheromone Release byScyphophorus acupunctatus(Coleoptera: Curculionidae)

Aggregation and Male Attraction to Feeding Virgin Females inMacrodactylus subspinosus(F.) (Coleoptera: Scarabaeidae: Melolonthinae)

Indication of bioactive candidates among body volatiles of gregarious adult locusts Locusta migratoria manilensis by electroantennography (EAG) test

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