Preferência de Bemisia tabaci biótipo B em linhagens mutantes de algodoeiro

Neto, Francisco das Chagas Vidal; Silva, Fanuel Pereira da; Bleicher, Ervino; Melo, Francisco Ivaldo Oliveira

doi:10.1590/s0103-84782008000100010

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…Cao et al (2008) reported that B. tabaci adults could be attracted to green and yellow colors but not red. Neto et al (2008) have compared the selectivity of whitefly adults to cotton lines differing in leaf color, showing that the red-colored one was less attractive than the normal green cotton plant. In addition to host plant color, plant volatile substances also play an important role in the host orientation of B. tabaci adults.…”

Section: Discussionmentioning

confidence: 99%

“…Schutze et al (2022) reported that the B. tabaci population density is higher during the vegetative stage of soybean; consistent with that finding, the green leaf stage was the vegetative stage of poinsettia, too. In other work, Neto et al (2008) examined how the morphological characteristics of cotton mutant lines affected whitefly: the mutant with red plant characteristics (red-leaf) was less preferred for oviposition than the normal green-leaf cotton. Our results are consistent with this latter study as well.…”

Section: Discussionmentioning

confidence: 99%

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

Shi

Liu

et al. 2023

Journal of Economic Entomology

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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.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%