Resistance of tomato plant genotypes with high foliar allelochemical contents to the leafminer Liriomyza trifolii

Abstract

The objective of this study was to assess the resistance of tomato genotypes with high foliar levels of allelochemicals to the leafminer Liriomyza trifolii. Eight tomato genotypes with contrasting levels of three different alellochemicals were tested for leafminer resistance: the TOM-687 and TOM-688 lines, which are both rich in acylsugar; ZGB-703 and ZGB-704, which are rich in zingiberene; BPX-365G-899-07-04-02 and BPX-367E-238-02, which are rich in 2-tridecanone; and 2 standard commercial hybrids (Deborah Max and Bravo F1) with low-allelochemical content. Thirty days after being transplanted, nine potted plants of each of the treatments were transferred to a phytotron chamber, into which 1600 unsexed leafminer adults from a mass rearing were released. The number of mines and the percentage of leaves and leaflets attacked (= with the presence of punctures) were evaluated. Six days later, the number of pupae was recorded. The genotypes with high levels of acylsugar were associated with higher levels of resistance to leaf miner L. trifolii, through antixenosis and antibiosis mechanisms. At least one of the 2-tridecanone-rich lines (BPX -365G-899-07-04-02) showed some level of resistance via an antibiosis mechanism.

Selection of BC1F3 populations of Santa Cruz type dwarf tomato plant by computational intelligence techniques

“…Tomato breeding programs focusing on in natura consumption have adopted the strategy of introgression of alleles not only for fruit traits, but also for insect resistance. Various studies have confirmed that genotypes with high allelochemical contents in the leaves, such as acylsugars and 2-tridecanone, confer resistance to whitefly and other arthropod pests (Andrade et al 2017;Oliveira et al 2012;Neiva et al 2019;Silva et al 2018).…”

Tomato genotype resistance to whitefly mediated by allelochemicals and Mi gene

“…Programs developed in Brazil have pursued the introgression strategy of insect-resistant alleles, which are present in wild tomato species and elite inbred lines (Silva et al, 2013;Andrade et al, 2017;Vosmam et al, 2018). Pest resistance in these wild species is mediated by allelochemicals, which are generally associated with glandular foliar trichomes (Resende et al, 2006;Maluf et al, 2007;Andrade et al, 2018;Silva et al, 2018).…”

“…hirsutum produces zingiberene (ZGB), a sesquiterpene hydrocarbon (Maluf et al, 2001;Freitas et al, 2002). These allelochemicals provide resistance to whitefly (B. tabaci biotype B) (Hemiptera: Aleyrodidae) (Resende et al, 2009;Silva et al, 2009;Maluf et al, 2010;Neiva et al, 2013, Andrade et al, 2017, South American tomato pinworm (Tuta absoluta) (Lepidoptera: Gelechiidae) (Goncalves Oliveira et al, 2012), mites (Tetranychus urticae and T. evansi) (Acari: Tetranychidae) (Maluf et al, 2007), leafminer (Liriomyza trifolii) (Silva et al, 2018), and aphid (Myzus persicae) (Silva et al, 2013).…”

Volatile and Phenolic Compounds In The Resistance of The Melon to The Vegetable Leafminer, Liriomyza Sativae Blanchard (Diptera: Agromyzidae)

“…According to Kang et al (2009), the chemical compounds synthesised by plants may be fundamental to plant selection in leafminer species. In tomato genotypes (Solanum lycopersicum L.), the nonpreference of Liriomyza trifolii for feeding is related to high levels of allelochemicals (acylsugars, 2-tridecanone) (Silva et al 2017). In the melon, L. sativae is associated with the smaller number of trichomes and greater thickness of the leaf epidermis (de Oliveira et al, 2021).…”