caa a22 4500 477134289 CHVBK 20180405111713.0 cr unu---uuuuu 170330e19970101xx s 000 0 eng 10.1023/A:1002963623325 doi (NATIONALLICENCE)springer-10.1023/A:1002963623325 2-Tridecanone-mediated mechanisms of resistance to the South American tomato pinworm Scrobipalpuloides absoluta (Meyrick, 1917) (Lepidoptera-Gelechiidae) in Lycopersicon spp [Elektronische Daten] [W.R. Maluf, L.V. Barbosa, L.V. Costa Santa-Cecília] Oviposition and feeding of Scrobipalpuloides absoluta was studied on plants of seven different genotypes with varying 2-tridecanone (2-TD) foliage concentrations: Lycopersicon esculentum var. glabratum 'PI 134417' (= GLA), L. esculentum 'TSWV-547' (= ESC), F1 (ESC × GLA), and 4 F2 genotypes - two with high 2-TD (HI1, HI2), and two with low foliage 2-TD concentrations (LO1, LO2). GLA, HI1 and HI2 showed 2-TD concentrations above 185 × 10-1 2 moles/cm2, while ESC, LO1 and LO2 had 2-TD below 40 × 10-1 2 moles/cm2; F1 had intermediary levels of 2-TD (83,5 × 10-1 2 moles 2-TD/cm2). Ovipositioning was substantially higher in the low 2-TD than on either the high 2-TD genotypes or in the F1, especially in the upper portion of the plants. Scores for leaf lesion type (LLT), overall plant damage (OPD) and percent leaflets attacked (PLA) were substantially higher for the low 2-TD than for either the high 2-TD genotypes or the F1. The results indicate that 2-TD mediates resistance to S. absoluta in the interspecific cross, and strongly suggest that 2-TD acts as both an ovipositioning and feeding deterrent for this insect. Kluwer Academic Publishers, 1997 Lycopersicon esculentum nationallicence Lycopersicon hirsutum nationallicence var. glabratum nationallicence insect resistance nationallicence methyl-ketones nationallicence non-preference nationallicence oviposition nationallicence feeding nationallicence antibiosis nationallicence tomato nationallicence South American tomato pinworm nationallicence Maluf W.R. Departamento de Agricultura, Universidade Federal de Lavras, Cx. Postal 37, CEP 37200-000, Lavras, MG, Brazil aut Barbosa L.V. Departamento de Agricultura, Universidade Federal de Lavras, Cx. Postal 37, CEP 37200-000, Lavras, MG, Brazil aut Costa Santa-Cecília L.V. Empresa de Pesquisa Agropecuária de Minas Gerais-EPAMIG, Lavras, MG, Brazil aut Euphytica Kluwer Academic Publishers 93/2(1997-01-01), 189-194 0014-2336 93:2<189 1997 93 10681 https://doi.org/10.1023/A:1002963623325 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002963623325 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maluf W.R. Departamento de Agricultura, Universidade Federal de Lavras, Cx. Postal 37, CEP 37200-000, Lavras, MG, Brazil aut NATIONALLICENCE 700 1- Barbosa L.V. Departamento de Agricultura, Universidade Federal de Lavras, Cx. Postal 37, CEP 37200-000, Lavras, MG, Brazil aut NATIONALLICENCE 700 1- Costa Santa-Cecília L.V. Empresa de Pesquisa Agropecuária de Minas Gerais-EPAMIG, Lavras, MG, Brazil aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 93/2(1997-01-01), 189-194 0014-2336 93:2<189 1997 93 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer