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Pheromone gland extract

Pheromone gland extracts of the Australian guava moth, Coscinopty-cha improbana (Lepidoptera Carposinidae), contained four compounds that elicited responses from male moth antennae in GC-EAD analyses. These compounds, identified on the basis of GC-MS, were found to be (Z )-7-tricosene along with three monounsaturated ketones, namely (Z)-7-ocatadecen-ll-one, (Z )-7-nonadecen-l l-one and (Z )-7-tricosen-l l-one they were found in a ratio of 65 23-5 1-5 10 respectively. ... [Pg.297]

Analysis of the pheromone-gland extracts of the female brinjal fruit and shoot hot L,LeucinodesorbonalisGucncc (Lepidoptera Pyralidae Pyrausti-nae), of Indian and Taiwanese origin confirmed (A)- 1-hexadecenyl acetate... [Pg.297]

Coupled GC-EAD detection analyses of pheromone gland extracts revealed one EAD active compound produced by female Lymentra lucescens and by female L. serva (Lepidoptera Lymantriidae). This compound was identified as 2-methyl-(Z )-7-octadecene by the usual analytical techniques and by comparison with an authentic synthetic compound. [Pg.303]

Five candidate pheromone components were identified from pheromone gland extracts of the tomato fruit borer, Neoleucinodes elegan-(Lepidoptera Crambidae) (T )-ll-hexadecenol, (Z )-l 1-hexadecenol, (A)-l 1-hexadecenal, ( )- 1-hexadecenyl acetate and Z5,Z6,Z9) tricosatriene. A two-component blend of synthetic ( )- 1- hexadecenol and the hydrocarbon was observed to be the most effective. [Pg.306]

Figure 3.3 Partial GC/MS chromatograms of pheromone gland extracts obtained from female almond moths that were treated with the indicated deuterium-labeled fatty acid. To determine incorporation into the pheromone, single ions were monitored corresponding to (M+)-60 of Z9-14 OAc (197) and Z9,E12-140Ac (195) plus the number of deuteriums present in the precursor. The latter are shown in bold. Control glands were also analyzed to demonstrate that the ions representing labeling were absent (data not shown). The peak eluting just before Z9-14 OAc was tentatively identified as E11-14 OAc. Figure 3.3 Partial GC/MS chromatograms of pheromone gland extracts obtained from female almond moths that were treated with the indicated deuterium-labeled fatty acid. To determine incorporation into the pheromone, single ions were monitored corresponding to (M+)-60 of Z9-14 OAc (197) and Z9,E12-140Ac (195) plus the number of deuteriums present in the precursor. The latter are shown in bold. Control glands were also analyzed to demonstrate that the ions representing labeling were absent (data not shown). The peak eluting just before Z9-14 OAc was tentatively identified as E11-14 OAc.
Table 18.1 Known and possible female-produced sex pheromone components for arctiid moths. Compounds in bold have been found in pheromone gland extracts or aeration extracts and have been shown to be active in behavioral bioassays or field trials compounds in normal font have been found in pheromone gland or aeration extracts and compounds in italics have been shown to attract males infield screening trials. Table 18.1 Known and possible female-produced sex pheromone components for arctiid moths. Compounds in bold have been found in pheromone gland extracts or aeration extracts and have been shown to be active in behavioral bioassays or field trials compounds in normal font have been found in pheromone gland or aeration extracts and compounds in italics have been shown to attract males infield screening trials.
Fig. 9A,B GC-MS analysis of the pheromone extract of Anadevidia peponis (Noctuidae, 1 FE) treated with DMDS A TIC B mass chromatograms [141]. The mass chromatograms, which are multiplied by indicated factors, monitor the M+ of DMDS adducts derived from C10 to C16 monoenyl acetates (m/z 292,320,348, and 376) and some diagnostic fragment ions (m/z 89,117,145,173,175,203,231, and 259) to determine their double-bond position. Peaks I-VI indicate the DMDS adducts of the following components in the pheromone gland Z5-10 OAc (I),Z5-12 OAc (II),Z7-12 OAc (III), ll-12 OAc (IV),Z9-14 OAc (V), and Zll-16 OAc (VI)... Fig. 9A,B GC-MS analysis of the pheromone extract of Anadevidia peponis (Noctuidae, 1 FE) treated with DMDS A TIC B mass chromatograms [141]. The mass chromatograms, which are multiplied by indicated factors, monitor the M+ of DMDS adducts derived from C10 to C16 monoenyl acetates (m/z 292,320,348, and 376) and some diagnostic fragment ions (m/z 89,117,145,173,175,203,231, and 259) to determine their double-bond position. Peaks I-VI indicate the DMDS adducts of the following components in the pheromone gland Z5-10 OAc (I),Z5-12 OAc (II),Z7-12 OAc (III), ll-12 OAc (IV),Z9-14 OAc (V), and Zll-16 OAc (VI)...
The function of the male courtship pheromone in plethodontids was first documented in a study of Desmognathus ocoee Houck and Reagan (1990) showed that the diffusion delivery of a crude extract from the male pheromone gland increased... [Pg.214]

The sex pheromone communication system basically involves the release of specific chemicals from a pheromone producer (emitter), the transmission of these chemicals in the environment to a receiver, and the processing of these signals to mediate appropriate behavioral responses in the receiver. The chemicals transmitted downwind have been the most obvious targets for characterization. The code was first broken with the publication in 1959 (3) of the sex pheromone for the domesticated silkworm Bombyx mori after extraction of a half million female silkworm pheromone glands and 30 years of classical chemical analyses. The pheromone was found to be (E10, Z12)-hexadecadien-l-ol, which was called bombykol. This work showed that there was nothing magical about the communication system, and chemists around the world were "attracted" to this area of research on insect pheromones. [Pg.115]

The asopine bug Tynacantha marginata represents a case in point of the premature designation of insect-produced compounds as pheromones. Males of this species produce a novel tricyclic sesquiterpenoid 48 from their pheromone gland , which has been designated as a putative sex pheromone [64], apparently on the basis that it is produced only by males. No assessment of the biological activity of crude extracts from the bugs, the purified compound from the bugs, or the synthetic compounds (see below) has been reported in the primary literature. [Pg.61]

The terrestrial salamander Plethodonjordani applies courtship pheromone to the female hy ruhhing or slapping his mental gland directly on the female s nares. This way the pheromone can stimulate the vomeronasal organ and accessory olfactory system. Experimental application of mental gland extracts to the nares of females accelerated the time until active courtship started (Houck etal., 1998). [Pg.207]

The female-produced sex pheromone of the scarab beetle, Phyllophaga lanceolata was identified as the methyl ester of an essential amino acid, L-leucine. Three amino acid derivatives were identified in the extracts of pheromone glands of the scarab beetle, Phyllophaga elenans. These were... [Pg.289]

Coupled GC-EAD of both gland extracts and effluvial collections from female blueberry leafminer, Caloptilia porphyrectica Braun (Lepidoptera Gracillariidae), showed that females produce a single EAD-active compound. (A)-l 1 -hexadecenal was determined to be the sex pheromone based on comparison of the retention time of an authentic standard on both polar and non-polar capillary columns. Microreaction-GC-EAD analyses and field trapping results confirmed the identification. ... [Pg.297]

Simultaneous GC-EAD analyses of the extracts of the sex pheromone gland of the female bronzed cutworm, Nephelodes minians, indicated two compounds which eficited strong EAD responses from conspecific male antennae, (2 )-ll-hexadecenal and (2 )-ll-hexadecenyl acetate. Double bond positions were confirmed by the dimethyl disulfide derivatives of the pheromone component. In a field test, a 5 1 blend of aldehyde and ester attracted male N. minians. ... [Pg.298]

The sex pheromone of the buck moth, Hemileuca maia (Lepidoptera Saturniidae) has been identified as a blend, with the major component of this blend being (ElO,. Z12)-hexadeca-10,12-dienal, in combination with (E10, 12)-hexadeca-10,12-dien-l-ol and (E10,2 12)-hexadeca-10,12-dien-l-yl acetate. Ratios of the compounds in extracts of the female pheromone glands varied around a mean of 100 7.4 6.3. None of the three components however, were attractive to male moths when tested as single components. [Pg.298]

A combination of (.Z)-8-dodecenyl acetate and ( )-8-dodecenol was identified from the sex pheromones glands of the carambola fruit borer, Eucosma notanthes Meyrick (Lepidoptera Tortricidae). The ratio of the alcohol to the ester in the extracts was 2 7. GC, GC-MS, chemical deriva-tization, and comparison of retention times with authentic standards were used for identification. ... [Pg.298]

Extracts from the sex pheromone glands of the female Ostrinia latipen-nis (Lepidoptera Crambidae) revealed one EAD active compound novel to Ostrinia. It was identified as (E )- 1-tetradecenol. Field trapping experiments confirmed the attractiveness of this alcohol to males. [Pg.299]

Three PAG-active compounds were identified from the extracts of pheromone glands of the persimmon fruit moth, Stathmopoda masinissa Meyrick (Lepidoptera Oecophoridae). These were AE,6Z)-4,6-hexadecadienal and the corresponding acetate (EA,Z6- 6 OAc) and alcohol EA,Z6- 6 OY ). A preliminary field trail confirmed that the acetate as a single component attracted male moths, the possible roles of the aldehydes and the alcohol as components of lures remains to be determined. [Pg.305]

The extracts of the female sex pheromone gland of the sandthorn car-penterworm moth, Holcocerus hippophaecolus Hua (Lepidoptera Cossi-dae), were found to contain ( )-3-tetradecenyl acetate, (Z )-3-tetradecenyl acetate, (Z )-7-tetradecenyl acetate, the corresponding alcohols and E)-9-tetradecenyl acetate. A combination of field trials and experiments were done to conclude that the sex pheromone of H. hippophaecolus is composed of (Z )-7-tetradecenyl acetate and (T)-3-tetradecenyl acetate. Optimal ratios and doses of these two and the possible role of other minor components remain to be determined. [Pg.306]


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Pheromone gland

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