Male Aggregation Pheromone of Date Palm Fruit Stalk Borer Oryctes elegans

Rochat, Didier; Mohammadpoor, Kazem; Malosse, Christian; Avand-Faghih, Arman; Lettere, Martine; Beauhaire, Josiane; Morin, Jean–Paul; Pezier, Adeline; Renou, Michel; Abdollahi, Gholam Abbas

doi:10.1023/b:joec.0000017984.26917.52

Cited by 40 publications

(35 citation statements)

References 3 publications

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“…Additionally, males of Oryctes beetles produce pheromones. It has been reported that males of O. elegans (Hallett et al 1995) and O. rhinoceros (Rochat et al 2004) produce aggregation pheromones that help conspecifics locate one another on palm trees. We suspect that these pheromones are utilized by Sancassania mites to detect the males of suitable hosts.…”

Section: Discussionmentioning

confidence: 99%

Interactions between Phoretic Mites and the Arabian Rhinoceros Beetle,Oryctesagamemnon arabicus

Al-Deeb

Muzaffar

Sharif

2012

Journal of Insect Science

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Oryctes agamemnon arabicus (Coleoptera: Scarabaeidae) is one of the main pests on date palm trees in the United Arab Emirates (UAE). Two mite species were found associated with this beetle: Sancassania sp. (Acari: Astigmata: Acaridae) and Hypoaspis rhinocerotis Oudemans (Acari: Mesostigmata: Laelapidae). Sancassania deutonymphs (hypopi) were phoretic on O. a. arabicus adults and larvae. However, they were also necromenic, because once the host dies they feed on its carcass. The highest deutonymph load was found in the subelytral space of O. a. arabicus adult. The phoretic and necromenic interactions between Sancassania sp. and O. a. arabicus need to be investigated in more detail. H. rhinocerotis was recorded for the first time in UAE. Its role has not yet been studied in the date palm agricultural ecosystem.

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Section: Discussionmentioning

confidence: 99%

Interactions between Phoretic Mites and the Arabian Rhinoceros Beetle,Oryctesagamemnon arabicus

Al-Deeb

Muzaffar

Sharif

2012

Journal of Insect Science

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“…When methylmalonyl-CoA is used as the penultimate building block followed by malonyl-CoA, the synthesis results in the formation of γ-methyl branched FAs that upon O -methylation yield the respective FAMEs. Only one such compound has previously been found in nature represented by methyl 4-methyloctanoate, and this is a constituent of the pheromone blend of the date palm fruit stalk borer Oryctes elegans [22], whereas the related FAMEs 89 – 94 emitted by M. aurantiaca are all new natural products. The use of alternative starter units from branched amino acids for the biosynthesis of FAMEs was demonstrated in feeding experiments.…”

Section: Resultsmentioning

confidence: 99%

Novel fatty acid methyl esters from the actinomycete Micromonospora aurantiaca

Dickschat¹,

Bruns²,

Riclea³

2011

Beilstein J. Org. Chem.

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SummaryThe volatiles released by Micromonospora aurantiaca were collected by means of a closed-loop stripping apparatus (CLSA) and analysed by GC–MS. The headspace extracts contained more than 90 compounds from different classes. Fatty acid methyl esters (FAMEs) comprised the major compound class including saturated unbranched, monomethyl and dimethyl branched FAMEs in diverse structural variants: Unbranched, α-branched, γ-branched, (ω−1)-branched, (ω−2)-branched, α- and (ω−1)-branched, γ- and (ω−1)-branched, γ- and (ω−2)-branched, and γ- and (ω−3)-branched FAMEs. FAMEs of the last three types have not been described from natural sources before. The structures for all FAMEs have been suggested based on their mass spectra and on a retention index increment system and verified by the synthesis of key reference compounds. In addition, the structures of two FAMEs, methyl 4,8-dimethyldodecanoate and the ethyl-branched compound methyl 8-ethyl-4-methyldodecanoate were deduced from their mass spectra. Feeding experiments with isotopically labelled [2H10]leucine, [2H10]isoleucine, [2H8]valine, [2H5]sodium propionate, and [methyl-2H3]methionine demonstrated that the responsible fatty acid synthase (FAS) can use different branched and unbranched starter units and is able to incorporate methylmalonyl-CoA elongation units for internal methyl branches in various chain positions, while the methyl ester function is derived from S-adenosyl methionine (SAM).

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“…(Coleoptera, Scarabaeidae) the main aggregation pheromone component when presented alone, produced very low catches. However, when presented together with host‐plant odour, it was clearly synergistic (Rochat et al. 2004).…”

Section: Discussionmentioning

confidence: 99%

Similarities in pheromonal communication of flea beetles Phyllotreta cruciferae Goeze and Ph. vittula Redtenbacher (Coleoptera, Chrysomelidae)

Tóth

Csonka

Bartelt³

et al. 2011

J Applied Entomology

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Remarkable similarities have been found in the pheromonal communication of Phyllotreta vittula Redtenbacher and of Ph. cruciferae Goeze (European population) (Coleoptera, Chrysomelidae). In previously published European field tests with Ph. cruciferae, only the major male‐produced sesquiterpene identified from North American Ph. cruciferae [compound A, (6R,7S)‐2,2,6,10‐tetramethylbicyclo[5.4.0]undeca‐1(11),9‐diene] was behaviourally active; unexpectedly, the European species Ph. vittula also responded in these tests and in the same way. In the present study, both the European population of Ph. cruciferae and Ph. vittula were shown to produce the same blend of compounds found in North American Ph. cruciferae and in similar proportions. Compound A is concluded to be a pheromone component for Ph. vittula as well as for Ph. cruciferae. In previously published tests with host compounds, Ph. vittula preferred 3‐butenyl isothiocyanate to allyl isothiocyante whereas the reverse was true for Ph. cruciferae. It was also learned earlier that compound A enhanced the response of both species toward allyl isothiocyanate. The present study further explored interactions between compound A and the two isothiocyanates. Thus, the highest catches of Ph. vittula were recorded in traps with the combination of racemic compound A with 3‐butenyl isothiocyanate, while highest Ph. cruciferae catches (and of Ph. nigripes Fabr.) were observed in traps with the combination of compound A with allyl isothiocyanate. Therefore, with the optimal combination of pheromonal and host‐derived stimuli, more specific communication channels may exist for the different Phyllotreta spp. Both Ph. cruciferae and Ph. vittula rank among the most important pest flea beetles in Europe.

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Male Aggregation Pheromone of Date Palm Fruit Stalk Borer Oryctes elegans

Cited by 40 publications

References 3 publications

Interactions between Phoretic Mites and the Arabian Rhinoceros Beetle,Oryctesagamemnon arabicus

Interactions between Phoretic Mites and the Arabian Rhinoceros Beetle,Oryctesagamemnon arabicus

Novel fatty acid methyl esters from the actinomycete Micromonospora aurantiaca

Similarities in pheromonal communication of flea beetles Phyllotreta cruciferae Goeze and Ph. vittula Redtenbacher (Coleoptera, Chrysomelidae)

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