Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2758

Short Communication

Interactions between galling insects and plant total phenolic contents in Rosa canina L. genotypes

Saliha Coruh1 and Sezai Ercisli2*
1Department of Plant Protection, Faculty of Agriculture, Ataturk University 25240 Erzurum-Turkey. 2Department of Horticulture, Faculty of Agriculture, Ataturk University 25240 Erzurum-Turkey.
Email: [email protected]

  •  Accepted: 23 June 2010
  •  Published: 18 July 2010

Abstract

This study aimed to determine interactions between gall induction by Diplolepis sp.and leaf total phenolic content in Rosa canina genotypes. A total of 20 R. caninagenotypes with and without insect damage has been selected in different parts of Northeast Anatolia and the leaf samples collected in July 2009. Total phenolic content was estimated by the Folin–Ciocalteu colorimetric method and expressed as gallic acid equivalents (GAE) in mg/g dry weight. The results showed that seven genotypes without insect damage had significantly greater total phenol content in its leaves compared to insect damaged R. canina plants. These results clearly indicate that total phenolic content in R. canina genotypes that had no galling insect damage may have an important part of chemical defense of R. canina plants against Diplolepis sp. This may have also suggested that these resistant genotypes against galling insect are important for sustainable and organic rose hip production.

 

Key words: Rosa canina, galling insect, Diplolepis spp. total phenolics.