Trace Chemicals: The Essence of Sexual Communication Systems in
 Heliothis
 Species

Klun, J. A.; Plimmer, Jack R.; Bierl-Leonhardt, B. A.; Sparks, Alton N.; Chapman, O. L.

doi:10.1126/science.204.4399.1328

Cited by 114 publications

(56 citation statements)

References 10 publications

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“…a polyphagous pest of food, feed and fiber (estimated annual losses of nearly one billion dollars in the U.S. alone) and Cydia pomonella (L.) (codling moth) a polyphagous pest primarily of pome fruits, stonefruits, and walnuts (losses of more than 10 million dollars annually in California alone). Their sex pheromones have been identified (Roelofs et al 1971(Roelofs et al , 1972Klun et al 1979Klun et al , 1980 and are used in monitoring and/or suppression of these pests. The chief and preferred agricultural host plant of H. zea is corn, which serves as an infestation reservoir from which emergent moths emigrate (Phillips & Whitcomb 1962;Snow & Brazzel 1965).…”

Section: Introductionmentioning

confidence: 99%

Host-plant green-leaf volatiles synergize the synthetic sex pheromones of the corn earworm and codling moth (Lepidoptera)

et al. 1993

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Summary. The capture of adult male moths in female sex pheromone traps of two key agricultural pests, the corn earworm (Helicoverpa zea) and the codling moth (Cydia pomonella), is enhanced or synergized by a certain group of host-plant volatiles, the "green-leaf volatiles" (GLVs). Since female adults of both species call and release their sex pheromones while perched upon the leaves of their host-plants, the volatile constituents from the leaves of a number of host-plants were compared. Sex pheromone traps containing one of the prominent leaf volatiles of certain H. zea hosts, (Z)-3-hexenyl acetate, not only significantly increased the capture of H. zea males but were preferred over traps baited only with sex pheromone. Similarly, traps baited with synthetic sex pheromome of C. pomonella plus a blend of GLVs captured significantly more males than traps baited only with sex pheromone. Since male moths are not captured in traps baited only with these GLVs, it appears that these GLVs act as pheromone synergists which increase or enhance the attraction or arrestment of male moths in pheromone traps.

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Section: Introductionmentioning

confidence: 99%

Host-plant green-leaf volatiles synergize the synthetic sex pheromones of the corn earworm and codling moth (Lepidoptera)

et al. 1993

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“…The pheromone blends of both species contain (Z)-11-hexadecenal (Z11-16:Ald) as the major component and different relative amounts of tetradecanal (14:Ald), (Z)-9-tetradecenal (Z9-14:Ald), (Z)-7-hexadecenal (Z7-16:Ald), (Z)-9-hexadecenal (Z9-16:Ald), and (Z)-11-hexadecenol (Z11-16:OH) (34,(41)(42)(43)(44)(45)(46)(47)(48)(49)(50). In addition to the major component, Z9-16:Ald and Z11-16:OH are essential for the attraction of Hs males (34,49,51), whereas Hv males are attracted to a minimal blend consisting of Z11-16:Ald and Z9-14:Ald (41)(42)(43)48).…”

mentioning

confidence: 99%

“…In addition to the major component, Z9-16:Ald and Z11-16:OH are essential for the attraction of Hs males (34,49,51), whereas Hv males are attracted to a minimal blend consisting of Z11-16:Ald and Z9-14:Ald (41)(42)(43)48). Hs females also produce three acetate esters, (Z)-7-hexadecenyl acetate (Z7-16:OAc), (Z)-9-hexadecenyl acetate (Z9-16:OAc), and (Z)-11-hexadecenyl acetate (Z11-16:OAc) (collectively denoted ''acetates''), which are all absent in Hv (43,45,(48)(49)(50)52). The addition of Z11-16:OAc to the minimal Hs pheromone blend (three components) results in an insignificant increase in attraction of Hs males (51,53), so the intraspecific role of this compound has been unclear.…”

mentioning

confidence: 99%

Experimental evidence for interspecific directional selection on moth pheromone communication

Groot

Horovitz²,

Hamilton³

et al. 2006

Proc. Natl. Acad. Sci. U.S.A.

106

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“…The H. subfl exa pheromone blend is comprised of ( Z )-11-hexadecenal (Z11-16:Ald) as the major pheromone component [Teal et al, 1981;Klun et al, 1982;Heath et al, 1990;Teal and Tumlinson, 1997], ( Z )-11-hexadecenol (Z11-16:OH) [Heath et al, 1990;Vickers, 2002], and ( Z )-9-hexadecenal (Z9-16:Ald) [Vickers, 2002]. The H. virescens pheromone blend is comprised of Z11-16:Ald as the major component, with small amounts of ( Z )-9-tetradecenal (Z9-14:Ald) [Roelofs et al, 1974;Tumlinson et al, 1975;Klun et al, 1979Klun et al, , 1980Vetter and Baker, 1983;Ramaswamy et al,1985;Teal et al, 1986].…”

Section: Introductionmentioning

confidence: 99%

Inheritance of Olfactory Preferences II. Olfactory Receptor Neuron Responses from Heliothis subflexa × Heliothis virescens Hybrid Male Moths

et al. 2006

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Single-cell electrophysiological recordings were obtained from olfactory receptor neurons (ORNs) in sensilla trichodea on male antennae of hybrids formed mainly by crossing female Heliothis subflexa with male Heliothis virescens (‘SV hybrids’). We recorded from the A-, B-, and C-type sensilla trichodea, with the latter two types housing ORNs exhibiting response profiles to different pheromone components that we had previously found to be characteristic for each species. For both the B- and the C-type SV hybrid sensilla, most of the ORNs exhibited a spike amplitude and ORN co-compartmentalization within sensilla that more strongly resembled the ORNs of parental H. subflexa rather than those of H. virescens. The overall mean dose-response profiles of the ORNs in hybrid C- and B-type sensilla were intermediate between those of the H. virescens and H. subflexa parental type ORNs. However, not all hybrid ORNs were intermediate in their tuning spectra, but rather ranged from those that closely resembled H. subflexa or H. virescens parental types to those that were intermediate, even on the same antenna. The most noteworthy shift in ORN responsiveness in hybrid males was an overall increase in sensitivity to Z9–14:Ald exhibited by Z9–16:Ald-responsive ORNs. Heightened cross-responsiveness to Z9–14:Ald by hybrid ORNs correlates well with observed behavioral cross-responsiveness of hybrids in which Z9–14:Ald could substitute for Z9–16:Ald in the pheromone blend, a behavior not observed in parental types. The hybrid ORN shifts involving greater sensitivity to Z9– 14:Ald also correlate well with studies of hybrid male antennal lobe interneurons that exhibited a shift toward greater cross-responsiveness to Z9–14:Ald and Z9– 16:Ald. We propose that the differences between parental H. virescens, H. subflexa, and SV hybrid male pheromone ORN responsiveness to Z9–16:Ald and Z9–14:Ald are most logically explained by an increased or decreased co-expression of two different odorant receptors for each of these compounds on the same ORN.

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Trace Chemicals: The Essence of Sexual Communication Systems in Heliothis Species

Cited by 114 publications

References 10 publications

Host-plant green-leaf volatiles synergize the synthetic sex pheromones of the corn earworm and codling moth (Lepidoptera)

Host-plant green-leaf volatiles synergize the synthetic sex pheromones of the corn earworm and codling moth (Lepidoptera)

Experimental evidence for interspecific directional selection on moth pheromone communication

Inheritance of Olfactory Preferences II. Olfactory Receptor Neuron Responses from <i>Heliothis subflexa</i> × <i>Heliothis virescens</i> Hybrid Male Moths

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