Re-analysis of the cuticular methylalkanes of Solenopsis invicta and S. richteri

Nelson, Dennis R.; Fatland, Charlotte L.; Howard, Ralph W.; McDaniel, C. A.; Blomquist, Gary J.

doi:10.1016/0020-1790(80)90012-8

Cited by 85 publications

(22 citation statements)

References 11 publications

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“…In this case, a third isomer of weaker intensity has a 7/3-methylene interruption pattern. This pattern was not observed in female trimethylalkanes, but has been observed in the CHCs and cuticular alcohols of other insects as a 5,13,17-methyl branched isomer [26,36]. (Figure 6b) are presented as excellent examples of the unmistakable mass spectra obtained.…”

Section: Trimethylalkanesmentioning

confidence: 62%

“…The only other insects reported to produce a 3,7,15-trimethylalkane are lps pine engraver beetles [14]. Although not presented in these figures, 3,7,11-and 4,8,12-trimethylalkanes were observed in Muscidifurax; however, these are present at low levels and have been found in several other insects [12,26,29,37].…”

Section: Trimethylalkanesmentioning

confidence: 80%

“…The mass spectral scan range extended from m/z 50 to m/z 700 with a scan rate of 1.8 s per scan. Interpretation of the mass spectra followed previously established conventions [11][12][13][25][26][27]. These references describe the interpretation process and location of methyl branched positions for natural hydrocarbons, synthesized de novo, for which there are no synthetic equivalents.…”

Section: Methodsmentioning

confidence: 99%

“…do contain these isomers, but at very low levels. Previously, isomers of 4,8-, 4,10-, 4,12-, and 4,14-dimethylalkanes have been reported [12,26,29,34]. However, there is only one report of 4,16-dimethylalkanes, found in peaks containing 4,14-and 4,18-isomers [14]; it is not known whether the 4,16-isomer is the major component of this peak as is the case for Muscidifurax.…”

Section: Dimethylalkanesmentioning

confidence: 97%

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Gas chromatography/mass spectrometry analysis of the cuticular hydrocarbons from parasitic wasps of the genus Muscidifurax

Bernier¹,

Carlson²,

Geden³

1998

J. Am. Soc. Mass Spectrom.

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Section: Trimethylalkanesmentioning

confidence: 62%

Section: Trimethylalkanesmentioning

confidence: 80%

Section: Methodsmentioning

confidence: 99%

Section: Dimethylalkanesmentioning

confidence: 97%

See 2 more Smart Citations

Gas chromatography/mass spectrometry analysis of the cuticular hydrocarbons from parasitic wasps of the genus Muscidifurax

Bernier¹,

Carlson²,

Geden³

1998

J. Am. Soc. Mass Spectrom.

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“…To analyse the composition of hydrocarbons, the 44 peaks found were aligned across the different chromatograms by calculating linear retention indices. In addition, individual hydrocarbons were identified by coupled gas chromatography/mass spectrometry (Nelson et al, 1980;Blomquist et al, 1987;Page et al, 1990a,b). Structural analysis was performed on a VG 70±250 SE mass spectrometer connected to a Hewlett Packard HP 5890 GC.…”

Section: Chemical Analysismentioning

confidence: 99%

Cuticular hydrocarbons in a termite: phenotypes and a neighbour–stranger effect

Kaib

Franke

Francke

et al. 2002

Physiological Entomology

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Abstract. The composition of cuticular hydrocarbons of different colonies of the fungus-growing termite Macrotermes falciger shows considerable intercolonial variation. Ordination, as well as cluster analyses, separate profiles into three distinct chemical phenotypes. Behavioural tests with major workers reveal no alarm behaviour or mortality in pairings of workers from the same colony but a full range from no alarm to overt aggression, with associated death, when individuals were paired from different colonies. The level of mortality increases with differences in the composition of cuticular hydrocarbons between colonies. However, no mortality occurs in pairings of individuals from neighbouring colonies belonging to different phenotypes. The data thus provide evidence for à neighbour±stranger' effect (so-called`dear-enemy' phenomenon) in termites.

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Effect of whitefly parasitoids on the cuticular lipid composition ofBemisia argentifolii (Homoptera: Aleyrodidae) nymphs

Buckner

Poprawski

Jones

et al. 2000

Arch. Insect Biochem. Physiol.

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Experiments were conducted to determine the effects of whitefly parasitoids on the cuticular lipid composition of the silverleaf whitefly, Bemisia argentifolii Bellows and Perring [=sweetpotato whitefly, Bemisia tabaci (Gennadius), Biotype B] nymphs. The cuticular lipids of B. argentifolii nymphs that had been attacked by parasitic wasps, either Eretmocerus mundus Mercet or Encarsia pergandiella Howard, were characterized by capillary gas chromatography and CGC-mass spectrometry and the results compared with the cuticular lipids of unparasitized nymphs. Previous studies with B. argentifolii nymphs had shown that wax esters were the major components of the cuticular lipids with lesser amounts of hydrocarbons, long-chain aldehydes, and long-chain alcohols. No appreciable changes in lipid composition were observed for the cuticular lipids of E. pergandiella-parasitized nymphs as compared to unparasitized controls. However, the cuticular lipids from nymphs parasitized by E. mundus contained measurable quantities of two additional components in their hydrocarbon fraction. Analyses and comparisons with an authentic standard indicated that the two hydrocarbons were the even-numbered chain length methyl-branched alkanes, 2-methyltriacontane and 2-methyldotriacontane. The occurrences and possible functions of 2-methylalkanes as cuticular lipid components of insects are discussed and specifically, in regard to host recognition, acceptance, and discrimination by parasitoids. Published 2000 Wiley-Liss, Inc.

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Re-analysis of the cuticular methylalkanes of Solenopsis invicta and S. richteri

Cited by 85 publications

References 11 publications

Gas chromatography/mass spectrometry analysis of the cuticular hydrocarbons from parasitic wasps of the genus Muscidifurax

Gas chromatography/mass spectrometry analysis of the cuticular hydrocarbons from parasitic wasps of the genus Muscidifurax

Cuticular hydrocarbons in a termite: phenotypes and a neighbour–stranger effect

Effect of whitefly parasitoids on the cuticular lipid composition ofBemisia argentifolii (Homoptera: Aleyrodidae) nymphs

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