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Local and systemic hormonal responses in pepper (Capsicum annuum L.) leaves under green peach aphid (Myzus persicae Sulzer) infestation
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SYSNO ASEP 0498189 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Local and systemic hormonal responses in pepper (Capsicum annuum L.) leaves under green peach aphid (Myzus persicae Sulzer) infestation Author(s) Florencio-Ortiz, V. (ES)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Casas, J.L. (CO)Number of authors 3 Source Title Journal of Plant Physiology. - : Elsevier - ISSN 0176-1617
Roč. 231, DEC (2018), s. 356-363Number of pages 8 s. Language eng - English Country DE - Germany Keywords Abscisic acid ; Aphid-plant interaction ; Biotic stress ; Indol-3-acetic acid ; Jasmonates ; Plant defence ; Salicylate ; uhplc-ms/ms Subject RIV EB - Genetics ; Molecular Biology OECD category Plant sciences, botany R&D Projects LO1204 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UEB-Q - RVO:61389030 UT WOS 000451619200037 EID SCOPUS 85055578979 DOI 10.1016/j.jplph.2018.10.015 Annotation This study examined the temporal changes in the leaf content of defence-involved phytohormones in pepper (Capsicum annuum L.) plants responding to the green peach aphid (Myzus persicae Sulzer) infestation, at both local and systemic level. Aphid infestation did not alter the content of cis-12-oxo-phytodienoic acid, the jasmonic acid (JA) precursor, even though endogenous levels of JA and its bioactive isoleucine-conjugated form (JA-Ile) significantly increased from 8 to 96 h in local infested leaves. Systemic effects in jasmonates were only showed at 48 h for JA, and 8 and 48 h in the case of JA-Ile. SA accumulated only in local infested leaves after 96 h of infestation, when the level of JA-Ile decreased in these leaves. This suggests a possible antagonistic interaction between JA and SA pathways, although other pathways may be also involved. Endogenous level of indole-3-acetic acid was higher in systemic relative to local infested leaves at 3 and 24 h, although no significant changes in its content were found compared to control leaves. Abscisic acid content was lower in local infested relative to control leaves at 24 h, but was higher at 48 h when it also increased systemically. The possible roles of the studied phytohormones in plant defence responses against aphids are discussed. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2019
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