Comparison of ecdysteroid concentration in different morphs of aphids

L. A. Polgár, B. Darvas, W. Völkl, P. Porcheron, A. Székács, S. Szelinger

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The amounts of ecdysteroids were determined in different morphs of holocyclic monoecious aphids (Acyrthosiphon pisum Harris, Dysaphis devecta Walk., Lachnus roboris L., Schizolachnus pineti F.) and holocyclic heteroecious aphids (Aphis sambuci L., Rhopalosiphum padi L.) by means enzyme immunoassay. Among the parthenogenetic morphs (fundatrices, virginoparae, and oviparae), the fundatrices have consistently higher amounts of ecdysteroids than those of other morphs of the same species. Alate and apterous virginoparae showed slight differences in their ecdysteroid titer both in heteroecious and monoecious aphids. The migrant morphs (i.e., alate fundatrices and gynoparae) have the lowest amounts of ecdysteroids within a species. With the exception of D. devecta, the oviparae of both heteroecious and monoecious aphids have the second greatest amounts of ecdysteroids among the morphs living on same host plant. Polyphenism, dispersal behavior, and fecundity in connection with weight, ovariole number, and ecdysteroid concentration of different morphs of aphids are discussed.

Original languageEnglish
Pages (from-to)179-183
Number of pages5
JournalComparative Biochemistry and Physiology - C Pharmacology Toxicology and Endocrinology
Volume115
Issue number2
DOIs
Publication statusPublished - Oct 1 1996

Keywords

  • Acyrthosiphon pisum
  • Aphis sambuci
  • Dysaphis devecta
  • Lachnus roboris
  • Rhopalosiphum padi
  • Schizolachnus pineti
  • aphid morphs
  • ecdysteroids
  • immunoassay

ASJC Scopus subject areas

  • Immunology
  • Pharmacology

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