Can sulfur fertilisation improve the effectiveness of trap crops for diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae)?
Can sulfur fertilisation improve the effectiveness of trap crops for diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae)?
复制标题
DOI：
10.1002/ps.1949
复制
发表时间：
2010-08-01
影响因子：
4.1
通讯作者：
Heckel, David G.
中科院分区：
文献类型：
--
作者：
Badenes-Perez, Francisco R.;Reichelt, Michael;Heckel, David G.
背景：研究了硫肥对黄芝麻菜 Barbarea vulgaris (R. Br.) 化学成分的影响，研究了其作为小菜蛾 Plutella xylostella (L.)（鳞翅目：小菜蛾科）诱捕作物的潜在用途。两种类型的 B. vulgaris var. arcuata 被使用：G 型，抗小菜蛾，建议作为“死胡同”陷阱作物，P 型，不抗小菜蛾，用作对照。 结果：在 G 型小菜蛾中，施硫使主要芥子油苷 (S)-2-羟基-2-苯乙基芥子油苷的含量增加了 20%。硫磺施肥并没有显着改变皂苷3-0-β-纤维二糖常春藤素和3-0-β-纤维二糖齐墩果酸的水平，已知它们对小菜蛾幼虫具有摄食威慑作用。在P型B. vulgaris中，相同水平的硫肥并未显着改变芥子油苷含量。对小菜蛾植物的二选一产卵偏好试验表明，施硫肥后，小菜蛾在 G 型和 P 型植物上的产卵量分别增加了 144% 和 45%。结论：研究表明，施硫肥可以提高 G 型小菜蛾作为小菜蛾诱捕作物的有效性。植物施硫肥对小菜蛾产卵偏好的影响与芥子油苷数量的增加有关，但也可能涉及其他化合物。 (C) 2010年化学工业学会
BACKGROUND: The effect of sulfur fertilisation on chemical constituents of yellow rocket, Barbarea vulgaris (R. Br.), was studied with regard to its potential use as a trap crop for the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae). Two types of B. vulgaris var. arcuata were used: the G-type, resistant to P. xylostella and proposed as a 'dead-end' trap crop, and the P-type, not resistant to P. xylostella and used as a control.RESULTS: In G-type B. vulgaris, sulfur fertilisation increased the content of the dominant glucosinolate (S)-2-hydroxy-2-phenylethylglucosinolate by 20%. Sulfur fertilisation did not significantly change levels of the saponins 3-0-beta-cellobiosylhederagenin and 3-0-beta-cellobiosyloleanolic acid, known to act as feeding deterrents for P. xylostella larvae. In P-type B. vulgaris, the same levels of sulfur fertilisation did not change the glucosinolate content significantly. Two-choice oviposition preference tests with B. vulgaris plants showed that P. xylostella laid 144% and 45% more eggs on G- and P-type plants with sulfur fertilisation respectively.CONCLUSIONS: The studies suggest that sulfur fertilisation could increase the effectiveness of G-type B. vulgaris as a trap crop for P. xylostella. The effect of plant sulfur fertilisation on P. xylostella oviposition preference is associated with a quantitative glucosinolate increase, but other compounds could also be involved. (C) 2010 Society of Chemical Industry