Antennal response and field attraction of the predator Elatophilus hebraicus (Hemiptera: Anthocoridae) to sex pheromones and analogues of three Matsucoccus spp. (Homoptera: Matsucoccidae)

Ezra Dunkelblum; Zvi Mendel; Gerhard Gries; Regine Gries; Lev Zegelman; Alfred Hassner; Kenji Mori

doi:10.1016/0968-0896(96)00030-2

Antennal response and field attraction of the predator Elatophilus hebraicus (Hemiptera: Anthocoridae) to sex pheromones and analogues of three Matsucoccus spp. (Homoptera: Matsucoccidae)

Ezra Dunkelblum, Zvi Mendel, Gerhard Gries, Regine Gries, Lev Zegelman, Alfred Hassner, Kenji Mori

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The predator Elatophilus hebraicus is closely associated with its prey, the pine bast scale, Matsucoccus josephi, and utilizes the M. josephi sex pheromone as a kairomone. Kairomonal activity of E. hebraicus was studied by GC-EAD and field bioassays. The sex pheromone of M. josephi [(2R,5R,6E,8E)-5,7-dimethyl-2,6,8-decatrien-4-one [(R)-E-M.j.] elicited a strong EAD response and attracted large numbers of the predator. The sex pheromone of two allopatric Matsucoccus spp., Matsucoccus feytaudi, (3S,7R,8E,10E)-3,7,9-trimethyl-8,10-dodecadien-6-one [(S,R)-E-M.f.] and Matcucossus matsumurae, (2R,4E,6R,10R)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one [(R,R)-E-M.m.] were also EAD-active and attracted significant numbers of E. hebraicus in the forest. Increasing the lure load of (S,R)-E-M.f. and (R,R)-E-M.m., in order to compensate for their lower volatility relative to (R)-E-M.j., resulted in similar attraction of E. hebraicus to each of the three pheromones. Other Matsucoccus pheromone stereoisomers displayed no behavioral activity. There was a significant difference in the activity of sex pheromone analogues, (6E/Z,8E)-5,7-dimethyl-6,8-decadien-4-one (52% E + 48% Z, ANLG 1) and (6E/Z,8E)-2,4,6-trimethyl-1,6,8-nonatrien-3-one (60% E + 40% Z, ANLG 2). The (E) isomer of ANLG 1 evoked a strong EAD response from E. hebraicus and the mixture of E/Z ANLG 1 attracted the predator in moderate numbers, whereas ANLG 2 was inactive both in EAD and field tests. Conversely, M. josephi males were not attracted to M. feytaudi and M. matsumurae pheromones or pheromone analogues. Cross-activity of E. hebraicus to M. feytaudi and M. matsumurae pheromones may be based on structural similarity of the compounds. Alternatively, E. hebraicus may respond specifically to the pheromones of two allopatric Matsucoccus spp. If true, kairomonal attraction of E. hebraicus to these pheromones may have evolved during speciation of the Matsucoccidae and may have been preserved despite the allopatry of M. josephi, M. feytaudi and M. matsumurae.

Original language	English
Pages (from-to)	489-494
Number of pages	6
Journal	Bioorganic and Medicinal Chemistry
Volume	4
Issue number	3
DOIs	https://doi.org/10.1016/0968-0896(96)00030-2
State	Published - Mar 1996

Bibliographical note

Funding Information:
This research was supported by the Forest Department of the Jewish National Fund, grant 137-0360. We would like to thank Mrs Fabienne Assael, Mrs Miriam Harel, Mr Shlomo Tam and foresters of JNF for technical and field assistance.

Funding

This research was supported by the Forest Department of the Jewish National Fund, grant 137-0360. We would like to thank Mrs Fabienne Assael, Mrs Miriam Harel, Mr Shlomo Tam and foresters of JNF for technical and field assistance.

Funders	Funder number
Forest Department of the Jewish National Fund	137-0360

Keywords

Elatophilus hebraicus
Matsucoccus josephi
kairomone
sex pheromone

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10.1016/0968-0896(96)00030-2

Cite this

Dunkelblum, E., Mendel, Z., Gries, G., Gries, R., Zegelman, L., Hassner, A., & Mori, K. (1996). Antennal response and field attraction of the predator Elatophilus hebraicus (Hemiptera: Anthocoridae) to sex pheromones and analogues of three Matsucoccus spp. (Homoptera: Matsucoccidae). Bioorganic and Medicinal Chemistry, 4(3), 489-494. https://doi.org/10.1016/0968-0896(96)00030-2

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title = "Antennal response and field attraction of the predator Elatophilus hebraicus (Hemiptera: Anthocoridae) to sex pheromones and analogues of three Matsucoccus spp. (Homoptera: Matsucoccidae)",

abstract = "The predator Elatophilus hebraicus is closely associated with its prey, the pine bast scale, Matsucoccus josephi, and utilizes the M. josephi sex pheromone as a kairomone. Kairomonal activity of E. hebraicus was studied by GC-EAD and field bioassays. The sex pheromone of M. josephi [(2R,5R,6E,8E)-5,7-dimethyl-2,6,8-decatrien-4-one [(R)-E-M.j.] elicited a strong EAD response and attracted large numbers of the predator. The sex pheromone of two allopatric Matsucoccus spp., Matsucoccus feytaudi, (3S,7R,8E,10E)-3,7,9-trimethyl-8,10-dodecadien-6-one [(S,R)-E-M.f.] and Matcucossus matsumurae, (2R,4E,6R,10R)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one [(R,R)-E-M.m.] were also EAD-active and attracted significant numbers of E. hebraicus in the forest. Increasing the lure load of (S,R)-E-M.f. and (R,R)-E-M.m., in order to compensate for their lower volatility relative to (R)-E-M.j., resulted in similar attraction of E. hebraicus to each of the three pheromones. Other Matsucoccus pheromone stereoisomers displayed no behavioral activity. There was a significant difference in the activity of sex pheromone analogues, (6E/Z,8E)-5,7-dimethyl-6,8-decadien-4-one (52% E + 48% Z, ANLG 1) and (6E/Z,8E)-2,4,6-trimethyl-1,6,8-nonatrien-3-one (60% E + 40% Z, ANLG 2). The (E) isomer of ANLG 1 evoked a strong EAD response from E. hebraicus and the mixture of E/Z ANLG 1 attracted the predator in moderate numbers, whereas ANLG 2 was inactive both in EAD and field tests. Conversely, M. josephi males were not attracted to M. feytaudi and M. matsumurae pheromones or pheromone analogues. Cross-activity of E. hebraicus to M. feytaudi and M. matsumurae pheromones may be based on structural similarity of the compounds. Alternatively, E. hebraicus may respond specifically to the pheromones of two allopatric Matsucoccus spp. If true, kairomonal attraction of E. hebraicus to these pheromones may have evolved during speciation of the Matsucoccidae and may have been preserved despite the allopatry of M. josephi, M. feytaudi and M. matsumurae.",

keywords = "Elatophilus hebraicus, Matsucoccus josephi, kairomone, sex pheromone",

author = "Ezra Dunkelblum and Zvi Mendel and Gerhard Gries and Regine Gries and Lev Zegelman and Alfred Hassner and Kenji Mori",

note = "Funding Information: This research was supported by the Forest Department of the Jewish National Fund, grant 137-0360. We would like to thank Mrs Fabienne Assael, Mrs Miriam Harel, Mr Shlomo Tam and foresters of JNF for technical and field assistance.",

year = "1996",

month = mar,

doi = "10.1016/0968-0896(96)00030-2",

language = "אנגלית",

volume = "4",

pages = "489--494",

journal = "Bioorganic and Medicinal Chemistry",

issn = "0968-0896",

publisher = "Elsevier Ltd.",

number = "3",

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Dunkelblum, E, Mendel, Z, Gries, G, Gries, R, Zegelman, L, Hassner, A & Mori, K 1996, 'Antennal response and field attraction of the predator Elatophilus hebraicus (Hemiptera: Anthocoridae) to sex pheromones and analogues of three Matsucoccus spp. (Homoptera: Matsucoccidae)', Bioorganic and Medicinal Chemistry, vol. 4, no. 3, pp. 489-494. https://doi.org/10.1016/0968-0896(96)00030-2

Antennal response and field attraction of the predator Elatophilus hebraicus (Hemiptera: Anthocoridae) to sex pheromones and analogues of three Matsucoccus spp. (Homoptera: Matsucoccidae). / Dunkelblum, Ezra; Mendel, Zvi; Gries, Gerhard et al.
In: Bioorganic and Medicinal Chemistry, Vol. 4, No. 3, 03.1996, p. 489-494.

Research output: Contribution to journal › Article › peer-review

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T1 - Antennal response and field attraction of the predator Elatophilus hebraicus (Hemiptera: Anthocoridae) to sex pheromones and analogues of three Matsucoccus spp. (Homoptera: Matsucoccidae)

AU - Dunkelblum, Ezra

AU - Mendel, Zvi

AU - Gries, Gerhard

AU - Gries, Regine

AU - Zegelman, Lev

AU - Hassner, Alfred

AU - Mori, Kenji

N1 - Funding Information: This research was supported by the Forest Department of the Jewish National Fund, grant 137-0360. We would like to thank Mrs Fabienne Assael, Mrs Miriam Harel, Mr Shlomo Tam and foresters of JNF for technical and field assistance.

PY - 1996/3

Y1 - 1996/3

N2 - The predator Elatophilus hebraicus is closely associated with its prey, the pine bast scale, Matsucoccus josephi, and utilizes the M. josephi sex pheromone as a kairomone. Kairomonal activity of E. hebraicus was studied by GC-EAD and field bioassays. The sex pheromone of M. josephi [(2R,5R,6E,8E)-5,7-dimethyl-2,6,8-decatrien-4-one [(R)-E-M.j.] elicited a strong EAD response and attracted large numbers of the predator. The sex pheromone of two allopatric Matsucoccus spp., Matsucoccus feytaudi, (3S,7R,8E,10E)-3,7,9-trimethyl-8,10-dodecadien-6-one [(S,R)-E-M.f.] and Matcucossus matsumurae, (2R,4E,6R,10R)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one [(R,R)-E-M.m.] were also EAD-active and attracted significant numbers of E. hebraicus in the forest. Increasing the lure load of (S,R)-E-M.f. and (R,R)-E-M.m., in order to compensate for their lower volatility relative to (R)-E-M.j., resulted in similar attraction of E. hebraicus to each of the three pheromones. Other Matsucoccus pheromone stereoisomers displayed no behavioral activity. There was a significant difference in the activity of sex pheromone analogues, (6E/Z,8E)-5,7-dimethyl-6,8-decadien-4-one (52% E + 48% Z, ANLG 1) and (6E/Z,8E)-2,4,6-trimethyl-1,6,8-nonatrien-3-one (60% E + 40% Z, ANLG 2). The (E) isomer of ANLG 1 evoked a strong EAD response from E. hebraicus and the mixture of E/Z ANLG 1 attracted the predator in moderate numbers, whereas ANLG 2 was inactive both in EAD and field tests. Conversely, M. josephi males were not attracted to M. feytaudi and M. matsumurae pheromones or pheromone analogues. Cross-activity of E. hebraicus to M. feytaudi and M. matsumurae pheromones may be based on structural similarity of the compounds. Alternatively, E. hebraicus may respond specifically to the pheromones of two allopatric Matsucoccus spp. If true, kairomonal attraction of E. hebraicus to these pheromones may have evolved during speciation of the Matsucoccidae and may have been preserved despite the allopatry of M. josephi, M. feytaudi and M. matsumurae.

AB - The predator Elatophilus hebraicus is closely associated with its prey, the pine bast scale, Matsucoccus josephi, and utilizes the M. josephi sex pheromone as a kairomone. Kairomonal activity of E. hebraicus was studied by GC-EAD and field bioassays. The sex pheromone of M. josephi [(2R,5R,6E,8E)-5,7-dimethyl-2,6,8-decatrien-4-one [(R)-E-M.j.] elicited a strong EAD response and attracted large numbers of the predator. The sex pheromone of two allopatric Matsucoccus spp., Matsucoccus feytaudi, (3S,7R,8E,10E)-3,7,9-trimethyl-8,10-dodecadien-6-one [(S,R)-E-M.f.] and Matcucossus matsumurae, (2R,4E,6R,10R)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one [(R,R)-E-M.m.] were also EAD-active and attracted significant numbers of E. hebraicus in the forest. Increasing the lure load of (S,R)-E-M.f. and (R,R)-E-M.m., in order to compensate for their lower volatility relative to (R)-E-M.j., resulted in similar attraction of E. hebraicus to each of the three pheromones. Other Matsucoccus pheromone stereoisomers displayed no behavioral activity. There was a significant difference in the activity of sex pheromone analogues, (6E/Z,8E)-5,7-dimethyl-6,8-decadien-4-one (52% E + 48% Z, ANLG 1) and (6E/Z,8E)-2,4,6-trimethyl-1,6,8-nonatrien-3-one (60% E + 40% Z, ANLG 2). The (E) isomer of ANLG 1 evoked a strong EAD response from E. hebraicus and the mixture of E/Z ANLG 1 attracted the predator in moderate numbers, whereas ANLG 2 was inactive both in EAD and field tests. Conversely, M. josephi males were not attracted to M. feytaudi and M. matsumurae pheromones or pheromone analogues. Cross-activity of E. hebraicus to M. feytaudi and M. matsumurae pheromones may be based on structural similarity of the compounds. Alternatively, E. hebraicus may respond specifically to the pheromones of two allopatric Matsucoccus spp. If true, kairomonal attraction of E. hebraicus to these pheromones may have evolved during speciation of the Matsucoccidae and may have been preserved despite the allopatry of M. josephi, M. feytaudi and M. matsumurae.

KW - Elatophilus hebraicus

KW - Matsucoccus josephi

KW - kairomone

KW - sex pheromone

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Antennal response and field attraction of the predator Elatophilus hebraicus (Hemiptera: Anthocoridae) to sex pheromones and analogues of three Matsucoccus spp. (Homoptera: Matsucoccidae)

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