Physiological host specificity: A model using the European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae) and microsporidia of row crop and other stalk-boring hosts

Leellen F. Solter, Joseph V. Maddox, Charles R. Vossbrinck

Research output: Contribution to journalArticlepeer-review

Abstract

We investigated vertical and horizontal transmission as means by which entomopathogenic microsporidia may be isolated in their hosts. Ostrinia nubilalis larvae were challenged with microsporidia isolated from other stalk-boring and row crop Lepidoptera and were susceptible to seven species. Two species were horizontally transmitted. A Nosema sp. from Eoreuma loftini was transmitted among O. nubilalis larvae but not among larvae of the E. loftini host. This species was also vertically transmitted to the offspring of infected O. nubilalis females. An rDNA sequence showed the E. loftini isolate to be Nosema pyrausta, a naturally occurring species in O. nubilalis. Our results suggest that both horizontal and vertical transmission provide physiological barriers to host switching in the microsporidia, thus restricting the natural host range.

Original languageEnglish (US)
Pages (from-to)127-130
Number of pages4
JournalJournal of Invertebrate Pathology
Volume90
Issue number2
DOIs
StatePublished - Oct 2005

Keywords

  • Host range
  • Host specificity
  • Microsporidia
  • Nontarget host
  • Nosema
  • Ostrinia nubilalis
  • Vairimorpha

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Fingerprint

Dive into the research topics of 'Physiological host specificity: A model using the European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae) and microsporidia of row crop and other stalk-boring hosts'. Together they form a unique fingerprint.

Cite this