20.500.12556/RUL-153562 Metabolic response of peach fruit to invasive brown marmorated stink bug (Halyomorpha halys Stål.)’s infestation The brown marmorated stink bug (BMSB; Halyomorpha halys Stål.) is a highly destructive and polyphagous invasive pest that poses a serious threat to more than a hundred reported host plants. In the current study, the metabolic response of peach fruit of two cultivars—‘Maria Marta’ and ‘Redhaven’—to BMSB infestation was studied using high-performance liquid chromatography (HPLC) and mass spectrometry (MS). In general, a strong phenolic response to BMSB infestation in peach flesh in the injury zone was observed, with flavanol content increasing by 2.4-fold, hydroxycinnamic acid content by 5.0-fold, flavonol content by 3.2-fold, flavanone content by 11.3-fold, and dihydrochalcones content by 3.2-fold compared with the undamaged tissue in the cultivar ‘Maria Marta’. The phenolic response in the ‘Redhaven’ cultivar was even stronger. Consequently, the total phenolic content in the injured flesh also increased, 3.3-fold in ‘Maria Marta’ and 6.9-fold in ‘Redhaven’, compared with the uninjured flesh. Infestation with BMSB induced the synthesis of cyanidin-3-glucoside, which is not normally present in peach flesh. In comparison, the phenolic response was lower in peach peel, especially in the cultivar ‘Maria Marta’. The study showed that both peach cultivars reacted to BMSB infestation with an increase in phenolic content in the peach flesh, but in a limited area of injury. Prunus persica Pentatomidae flavonoids phenylpropanoid pathway plant defence induced resistance breskev škodljivci rastlin marmorinana smrdljivka obramba rastline inducirana odpornost flavonoidi true false true Angleški jezik Slovenski jezik Članek v reviji 2024-01-15 17:51:09 2024-01-15 17:51:16 2024-04-24 09:55:39 0000-00-00 00:00:00 2024 0 0 17 str. iss. 1, art. 606 Vol. 25 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 634.1/.7 1422-0067 181059587 ijms-25-00606.pdf ijms-25-00606.pdf 1 EF93999035F890AE3C93DE93B6C996FD af4dafeb90464e606993b1e77e783d80af10eb60440ed69dbbef15d36f5b3d0b 9d06dab6-b3c6-11ee-88ef-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=179628 https://www.mdpi.com/1422-0067/25/1/606 1 4d352e4b-b3c6-11ee-88ef-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=179627 Biotehniška fakulteta 0 0 0