文献类型：期刊文献

英文题名：Population changes of Bemisia tabaci (Hemiptera: Aleyrodidae) on different colored poinsettia leaves with different trichome densities and chemical compositions

作者：Shi, Pei-Qiong[1];Liu, Jing[1];Ye, Jun-Xi[1];Zhang, Ting-Zhen[2];Lin, Yu-Chun[1];Lao, Qiao-Bin[1];Qiu, Bao-Li[3];Zhou, Hong-Kai[1];Xu, Jin[1]

机构：[1]Guangdong Ocean Univ, Coll Coastal Agr Sci, Zhanjiang 524088, Guangdong, Peoples R China;[2]Guizhou Tobacco Co, Zunyi Branch, Zunyi 563000, Guizhou, Peoples R China;[3]Chongqing Normal Univ, Coll Life Sci, Chongqing 401331, Peoples R China

年份：2023

卷号：116

期号：4

起止页码：1276

外文期刊名：JOURNAL OF ECONOMIC ENTOMOLOGY

收录：SCI-EXPANDED(收录号：WOS:001001651700001)、、Scopus(收录号：2-s2.0-85167843550)、WOS

基金：Funding This work was supported by the Guangdong Basic and Applied Basic Research Foundation (2019A1515110745), Key-Area Research and Development Program of Guangdong Province (2020B020219004). The funders played no role in the study design, data collection, and interpretation, or in the decision to submit the work for publication.

语种：英文

外文关键词：whitefly; poinsettia; secondary metabolite; plant morphology; plant nutrition

外文摘要：The whitefly, Bemisia tabaci, is a destructive and invasive pest of many horticultural plants including poinsettia (Euphorbia pulcherrima). Outbreaks of B. tabaci cause serious damage by direct feeding on phloem sap, and spreading 100+ plant viruses to crops. Bemisia tabaci were observed more frequently on green than red poinsettia leaves, and the factors responsible for this are unknown. Here, we investigated the development rate, survivorship, fecundity of B. tabaci feeding on green versus red leaves, as well as the leaves' volatiles, trichome density, anthocyanin content, soluble sugars, and free amino acids. Compared to red leaves, B. tabaci on green leaves showed increased fecundity, a higher female sex ratio, and survival rate. The green color alone was more attractive to B. tabaci than red. Red leaves of poinsettia contained more phenol, and panaginsene in their volatiles. Alpha-copaene and caryophyllene were more abundant in the volatiles of poinsettia green leaves. Leaf trichome density, soluble sugars and free amino acids were higher in green than red leaves of poinsettia, anthocyanin was lower in green than red leaves. Overall, green leaves of poinsettia were more susceptible and attractive to B. tabaci. The morphological and chemical variation between red and green leaves also differed; further investigation may reveal how these traits affect B. tabaci's responses.