Department of Entomology, North Carolina State University, 27695-7630, Raleigh, North Carolina.
J Chem Ecol. 1992 Mar;18(3):499-515. doi: 10.1007/BF00994248.
The effects of glandular trichome/methyl ketone (2-tridecanone and 2-undecanone) -based insect resistance in the wild tomato,Lycopersicon hirsutum f.glabratum C.H. Mull, accession PI 134417, onArchytas marmoratus (Townsend) andEucelatoria bryani (Sabrosky) (Diptera: Tachinidae), both parasitoids ofHelicoverpa (=Heliothis)zea (Boddie) (Lepidoptera: Noctuidae), were investigated in the laboratory.A. marmoratus deposits larvae (planidia) on the foliage of its host's food plant; planidia attach to passing hosts, penetrate the cuticle, and develop in the host pupae.E. bryani larviposits directly into its host; its larvae develop in the host larva.A. marmoratus planidia are killed by glandular trichomes of PI 134417 and also by trichomes of hybrid lines with no methyl ketones. The methyl ketones are toxic to planidia, but at least part of the effect is due to other factors, possibly physical entanglement. Both species can be affected indirectly by methyl ketones in the diet of the host. 2-Undecanone reduces the percentage ofA. marmoratus larvae that reach pupation. This effect is evidently due to premature death and desiccation of the host pupa caused by 2-undecanone. 2-Tridecanone in host diets had no effect onA. marmoratus. InE. bryani, 2-tridecanone in the diet of the host reduced the number of parasitoids yielded by each parasitized host, although not the overall percentage of hosts parasitized. 2-Undecanone in the diet of the host had no effect onE. bryani.
腺毛/甲基酮（2-十三酮和 2-十一酮）赋予野生番茄 Lycopersicon hirsutum f. glabratum C.H. Mull，品系 PI 134417 抗虫性，对 Archytas marmoratus（Townsend）和 Eucelatoria bryani（Sabrosky）（双翅目：寄蝇科）的影响，这两种寄生蜂均寄生在棉铃虫（Helicoverpa (=Heliothis)zea（鳞翅目：夜蛾科）上，在实验室中进行了研究。A. marmoratus 将幼虫（原尾蚴）产在其宿主食物植物的叶片上；原尾蚴附着在过往的宿主上，穿透表皮，在宿主蛹中发育。E. bryani 直接在其宿主上产卵；它的幼虫在宿主幼虫中发育。PI 134417 的腺毛和没有甲基酮的杂交系的腺毛都会杀死 A. marmoratus 的原尾蚴。甲基酮对原尾蚴有毒，但至少部分作用是由于其他因素，可能是物理纠缠。这两个物种都可以通过宿主饮食中的甲基酮间接受到影响。2-十一酮降低了 A. marmoratus 幼虫达到化蛹的百分比。这种影响显然是由于 2-十一酮导致宿主蛹过早死亡和干燥。宿主饮食中的 2-十三酮对 A. marmoratus 没有影响。在 E. bryani 中，宿主饮食中的 2-十三酮减少了每个被寄生的宿主产生的寄生蜂数量，尽管没有影响被寄生的宿主的总体百分比。宿主饮食中的 2-十一酮对 E. bryani 没有影响。
