Relative contribution of LOX10, green leaf volatiles and JA to wound-induced local and systemic oxylipin and hormone signature in Zea mays (maize).
Autor: | He Y; Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang, 330045, China; Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA., Borrego EJ; Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA; Thomas H. Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, NY, 14623, USA., Gorman Z; Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA., Huang PC; Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA., Kolomiets MV; Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA. Electronic address: kolomiets@tamu.edu. |
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Jazyk: | angličtina |
Zdroj: | Phytochemistry [Phytochemistry] 2020 Jun; Vol. 174, pp. 112334. Date of Electronic Publication: 2020 Mar 13. |
DOI: | 10.1016/j.phytochem.2020.112334 |
Abstrakt: | Green leaf volatiles (GLVs) and jasmonates (JAs) are the best-characterized groups of fatty acid-derived oxylipin signals that regulate wound-associated defenses. Beyond these two major groups of defense signals, plants produce an array of oxylipins in response to wounding, which possess potent signaling and/or insecticidal activities. In this study, we assessed the relative contribution of JAs and GLVs to wound-induced systemic signaling and the associated regulation of oxylipins in local and systemic tissues of maize (Zea mays). For this, we utilized GLV- and JA-deficient mutants, lox10 single and opr7opr8 double mutants, respectively, and profiled oxylipins in untreated leaves and roots, and in locally wounded and systemic leaves. In contrast to the studies in dicots, no systemic induction of JAs was observed in maize. Instead, a JA precursor, 12-OPDA, as well as ketols and C Competing Interests: Declaration of competing interest None. (Copyright © 2020 Elsevier Ltd. All rights reserved.) |
Databáze: | MEDLINE |
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