Preliminary identification and quantification of steroid hormones in the red palm weevil, Rhynchophorus ferrugineus

Giulia Cimo', Augustine Arukwe, Maria Vittoria Cangialosi

Research output: Contribution to journalArticlepeer-review

Abstract

In the present preliminary study, we used a gas chromatography–mass spectroscopy (GC-MS) method to identify and quantify steroid hormones, their precursors and metabolites in whole body of red palm weevil (RPW) R. ferrugineus adults. We identified a total of seven steroids by single ion monitoring mode (SIM) analysis and compared them to the National Institute of Standards and Technology (NIST) library. The steroids include: dehydroepiandrosterone (DHEA), estrone, estradiol-17β, testosterone, progesterone, cortisol and cholesterol, whereas pregnenolone, pregnan-20-one-17-hydroxy and corticosterone were not detected. This study shows that some invertebrate groups seem to use partially or totally comparable hormones to vertebrates and produce vertebrate-type steroids with functional roles. However, some steroids of the endocrine system of invertebrates are still lacking or yet to be identified in most phyla.
Original languageEnglish
Pages (from-to)121-125
Number of pages5
JournalCaryologia
Volume65
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • Genetics
  • General Agricultural and Biological Sciences

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