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"This is not an Apple"-Yeast Mutualism in Codling Moth

In English

Författare

  • Peter Witzgall
  • Magali Proffit
  • Elzbieta Rozpedowska
  • Paul G. Becher
  • Stefanos Andreadis
  • Miryan Coracini
  • Tobias U. T. Lindblom
  • Lee J. Ream
  • Arne Hagman
  • Marie Bengtsson
  • Cletus P. Kurtzman
  • Jure Piskur
  • Alan Knight
Visa allt

Summary, in English

The larva of codling moth Cydia pomonella (Tortricidae, Lepidoptera) is known as the worm in the apple, mining the fruit for food. We here show that codling moth larvae are closely associated with yeasts of the genus Metschnikowia. Yeast is an essential part of the larval diet and further promotes larval survival by reducing the incidence of fungal infestations in the apple. Larval feeding, on the other hand, enables yeast proliferation on unripe fruit. Chemical, physiological and behavioral analyses demonstrate that codling moth senses and responds to yeast aroma. Female moths are attracted to fermenting yeast and lay more eggs on yeast-inoculated than on yeast-free apples. An olfactory response to yeast volatiles strongly suggests a contributing role of yeast in host finding, in addition to plant volatiles. Codling moth is a widely studied insect of worldwide economic importance, and it is noteworthy that its association with yeasts has gone unnoticed. Tripartite relationships between moths, plants, and microorganisms may, accordingly, be more widespread than previously thought. It, therefore, is important to study the impact of microorganisms on host plant ecology and their contribution to the signals that mediate host plant finding and recognition. A better comprehension of host volatile signatures also will facilitate further development of semiochemicals for sustainable insect control.

Publiceringsår

2012

Språk

Engelska

Sidor

949-957

Publikation/Tidskrift/Serie

Journal of Chemical Ecology

Volym

38

Issue

8

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Biological Sciences

Nyckelord

  • Plant-insect-microbe-interaction
  • Mutualism
  • Herbivory
  • Chemical
  • communication
  • Semiochemicals
  • Tortricidae
  • Lepidoptera

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1573-1561