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The Dufour's gland and the cuticle in the social wasp Ropalidia marginata contain the same hydrocarbons in similar proportions.

Mitra A, Gadagkar R - J. Insect Sci. (2014)

Bottom Line: Hence, this study analyzed the cuticle of R. marginata along with the Dufour's gland in order to compare their hydrocarbon profiles.The results show that the Dufour's gland and cuticle contained the same set of hydrocarbons in similar proportions (for the majority of compounds).Furthermore, the haemolymph contained the same hydrocarbons as found in the Dufour's gland and cuticle in similar proportions, thereby providing an explanation as to why the hydrocarbon profiles of the Dufour's gland and cuticle are correlated.

View Article: PubMed Central - PubMed

Affiliation: Centre for Ecological Sciences, Indian Institute of Science, Bangalore -560012, India mitra.aniruddha@gmail.com.

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Flame ionization detection gas chromatograms of Dufour's gland, cuticle, and haemolymph of an individual Ropalidia marginata wasp. Peak numbers correspond with compounds identified by GC-MS (Table 1). High quality figures are available online.
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f01_01: Flame ionization detection gas chromatograms of Dufour's gland, cuticle, and haemolymph of an individual Ropalidia marginata wasp. Peak numbers correspond with compounds identified by GC-MS (Table 1). High quality figures are available online.

Mentions: The CHC profile of each R. marginata wasp was similar to the DG profile. All of the 34 peaks that had been identified earlier from the DG were identified from the cuticle as well. The retention time and the mass fragmentation pattern of each peak from the cuticle were identical to its counterpart from the DG, and the relative proportions of the peaks were also similar (Figure 1, Table 1). There were no peaks found from the cuticle that were in addition to what had already been reported from the DG (Bhadra et al. 2010; Mitra et al. 2011). As reported for the DG compounds, the cuticular compounds were linear, monomethyl, and dimethyl branched alkanes (21 to 33 carbon atoms in the main chains), with some peaks comprising a mixture of two or more positional isomers of a branched alkane (Table 1).


The Dufour's gland and the cuticle in the social wasp Ropalidia marginata contain the same hydrocarbons in similar proportions.

Mitra A, Gadagkar R - J. Insect Sci. (2014)

Flame ionization detection gas chromatograms of Dufour's gland, cuticle, and haemolymph of an individual Ropalidia marginata wasp. Peak numbers correspond with compounds identified by GC-MS (Table 1). High quality figures are available online.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4199378&req=5

f01_01: Flame ionization detection gas chromatograms of Dufour's gland, cuticle, and haemolymph of an individual Ropalidia marginata wasp. Peak numbers correspond with compounds identified by GC-MS (Table 1). High quality figures are available online.
Mentions: The CHC profile of each R. marginata wasp was similar to the DG profile. All of the 34 peaks that had been identified earlier from the DG were identified from the cuticle as well. The retention time and the mass fragmentation pattern of each peak from the cuticle were identical to its counterpart from the DG, and the relative proportions of the peaks were also similar (Figure 1, Table 1). There were no peaks found from the cuticle that were in addition to what had already been reported from the DG (Bhadra et al. 2010; Mitra et al. 2011). As reported for the DG compounds, the cuticular compounds were linear, monomethyl, and dimethyl branched alkanes (21 to 33 carbon atoms in the main chains), with some peaks comprising a mixture of two or more positional isomers of a branched alkane (Table 1).

Bottom Line: Hence, this study analyzed the cuticle of R. marginata along with the Dufour's gland in order to compare their hydrocarbon profiles.The results show that the Dufour's gland and cuticle contained the same set of hydrocarbons in similar proportions (for the majority of compounds).Furthermore, the haemolymph contained the same hydrocarbons as found in the Dufour's gland and cuticle in similar proportions, thereby providing an explanation as to why the hydrocarbon profiles of the Dufour's gland and cuticle are correlated.

View Article: PubMed Central - PubMed

Affiliation: Centre for Ecological Sciences, Indian Institute of Science, Bangalore -560012, India mitra.aniruddha@gmail.com.

Show MeSH
Related in: MedlinePlus