期刊
ENVIRONMENTAL CHEMISTRY LETTERS
卷 14, 期 4, 页码 549-558出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s10311-016-0591-1
关键词
Water lettuce (Pistia stratiotes); Exogenous root elicitation; Electron paramagnetic resonance; Reactive oxygen species; Inducible biocatalysis; POBN
Phytoremediation is the use of plants to decontaminate and improve waters and soils. Pleustonic macrophytes are plant models for research in waters. In a phytoremediation study, the elicitation of Pistia stratiotes with methyl jasmonate or salicylic acid suggests that oxytetracycline modification rate coefficients could be increased more than threefold. Here we present the elicitation of Pistia stratiotes apical primary root tips. We detected reactive oxygen species generation by X-band electron paramagnetic resonance spectroscopy, using the spin trap alpha-(4-pyridyl-1-oxide)-N-tert-butylnitrone (POBN). Elicitation using 0.8 mM methyl jasmonate during 1 h increased the relative spin-trapped radical concentration by +12 %. Further, results indicate acute plant toxicity above 0.24 mM salicylic acid.
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