Myzus persicae Sulzer aphid contains oxylipins that originate from phloem sap
Myzus persicae Sulzer aphid contains oxylipins that originate from phloem sap
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DOI：
10.1080/17429140701320880
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发表时间：
2007-01-01
影响因子：
3.2
通讯作者：
Fauconnier, Marie-Laure
中科院分区：
文献类型：
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作者：
Harmel, Nicolas;Delaplace, Pierre;Fauconnier, Marie-Laure
氧脂素是氧化脂肪酸及其衍生物，在应对压力中发挥关键作用。它们广泛存在于许多生物体中，包括哺乳动物或植物，但在节肢动物中尚不清楚。在这项研究中，我们鉴定了烟蚜Sulzer蚜虫在蚕豆L。植物进一步的实验基于：（一）放射性标记的基板孵育蚜虫提取物，和（ii）饲养蚜虫人工饲料显示，蚜虫无法合成oxylipins。由于蚕豆总叶氧脂素谱不同于蚜虫的氧脂素谱，因此评估了：（i）蚜虫是否能够转化叶氧脂素，或（ii）韧皮部汁液（当以植物为食时被蚜虫摄取）是否含有不同于总叶氧脂素的氧脂素。韧皮部分泌物的分析表明，第一次，它含有氧化脂是不同于总叶。这些氧脂素被蚜虫进一步摄取。
Oxylipins are oxygenated fatty acids and their derivatives that play key roles in response to stress. They are widespread in many organisms including mammals or plants but are unknown in arthropods. In this study, we identified oxylipins in Myzys persicae Sulzer aphids reared on Vicia faba L. plants. Further experiments based on: (i) Radiolabelled substrate incubation with aphid extracts, and (ii) rearing of aphids on an artificial diet revealed that aphids were unable to synthesize oxylipins. As the V. faba total leaf oxylipin profile differs from the aphid one, it was assessed whether: (i) Aphids are able to transform leaf oxylipins, or (ii) phloem sap (ingested by aphids when feeding on plants) contains oxylipins different from total leaf ones. Phloem exudates analysis revealed, for the first time, that it contains oxylipins that are different from total leaf ones. These oxylipins are further ingested by aphids.