Scholarlink

<p><i>Frankliniella occidentalis</i> is a serious pest of various plant species and has different olfactory preferences for different host plants. Here, the olfactory responses of female <i>F. occidentalis</i> to the volatiles from different plants (<i>Rosa chinensis</i>, cucumber, and tomato) were tested using electroantennography (EAG) and behavioral bioassays in different types of olfactometers. Y-tube olfactometer bioassays indicated that <i>R. chinensis</i> was the preferred host for <i>F. occidentalis</i>. Fifty-five compounds were identified as components of the volatiles of <i>R. chinensis</i> by gas chromatography–mass spectrometry analysis, of which citronellol (11.62%), 1-hexanol (11.28%), and 3,5-dimethoxytoluene (11.45%) showed the highest relative abundance. EAG recordings showed that antennae of <i>F. occidentalis</i> were able to perceive these three compounds at a wide range of concentrations. In six-arm olfactometer bioassays, <i>F. occidentalis</i> showed significant positive responses to citronellol and 1-hexanol at various concentrations, with the most attractive ones being 10&#xa0;μg/μL for citronellol and 1&#xa0;μg/μL for 1-hexanol. When these two compounds at their optimal concentrations were placed in a four-arm olfactometer, significantly more <i>F. occidentalis</i> individuals were attracted to citronellol. <i>F. occidentalis</i> populations were significantly increased under the stimulation of citronellol at 10&#xa0;μg/μL. Our results show that plant semiochemical volatiles play an important role in the host plant detection and selection of <i>F. occidentalis</i>, and they help guide it to preferred host plants that are suitable for its reproduction. Citronellol showed the greatest potential for development as a novel monitoring and control tool against this thrips species.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Attractiveness of citronellol identified from Rosa chinensis volatiles to the thrips pest Frankliniella occidentalis and its beneficial effect on population development

  • 期刊论文

  • 发表日期：

    2025年9月6日

查看全文
  • Guang Zeng,
  • Yuping Yang,
  • Filippo Maggi,
  • Feiyu Jiang,
  • Rongrong Yuan,
  • Ling Chen,
  • Yulin Gao,
  • Yu Cao,
  • Kaixian Wu,
  • Stuart R. Reitz

摘要

Frankliniella occidentalis is a serious pest of various plant species and has different olfactory preferences for different host plants. Here, the olfactory responses of female F. occidentalis to the volatiles from different plants (Rosa chinensis, cucumber, and tomato) were tested using electroantennography (EAG) and behavioral bioassays in different types of olfactometers. Y-tube olfactometer bioassays indicated that R. chinensis was the preferred host for F. occidentalis. Fifty-five compounds were identified as components of the volatiles of R. chinensis by gas chromatography–mass spectrometry analysis, of which citronellol (11.62%), 1-hexanol (11.28%), and 3,5-dimethoxytoluene (11.45%) showed the highest relative abundance. EAG recordings showed that antennae of F. occidentalis were able to perceive these three compounds at a wide range of concentrations. In six-arm olfactometer bioassays, F. occidentalis showed significant positive responses to citronellol and 1-hexanol at various concentrations, with the most attractive ones being 10 μg/μL for citronellol and 1 μg/μL for 1-hexanol. When these two compounds at their optimal concentrations were placed in a four-arm olfactometer, significantly more F. occidentalis individuals were attracted to citronellol. F. occidentalis populations were significantly increased under the stimulation of citronellol at 10 μg/μL. Our results show that plant semiochemical volatiles play an important role in the host plant detection and selection of F. occidentalis, and they help guide it to preferred host plants that are suitable for its reproduction. Citronellol showed the greatest potential for development as a novel monitoring and control tool against this thrips species.