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022 _a0176-1617
040 _aMSU
_bEnglish
_cMSU
_erda
050 0 0 _aQK711.2 JOU
100 1 _aKuźniak, Elżbieta
_eauthor
245 1 0 _aSalicylic acid and cysteine contribute to arbutin-induced alleviation of angular leaf spot disease development in cucumber
_ccreated by Elżbieta Kuźniak, Marzena Wielanek, Grażyna Chwatko, Rafał Głowacki, Marta Libik-Konieczny, Milena Piątek, Ewa Gajewska and Maria Skłodowska
264 1 _aAmsterdam:
_bElsevier GmbH,
_c2015.
336 _2rdacontent
_atext
_btxt
337 _2rdamedia
_aunmediated
_bn
338 _2rdacarrier
_avolume
_bnc
440 _aJournal of plant physiology
_vVolume 181
520 3 _aArbutin induced suppression of angular leaf spot disease in cucumber resulting from lower populations of Pseudomonas syringae pv lachrymans in the infected tissues. This study provides insight into mechanisms that may potentially account for this effect. In the absence of the pathogen, exogenous arbutin-induced expression of PR1, the marker of salicylic acid signaling, increased the content of salicylic acid and modulated the cysteine pool. This suggested that arbutin promoted cucumber plants to a “primed” state. When challenged with the pathogen, the arbutin-treated plants showed strongly reduced infection symptoms 7 days after inoculation. At this time point, they were characterized by higher contents of free and protein-bound cysteine due to higher cysteine biosynthetic capacity related to increased activities of serine acetyltransferase and cysteine synthase when compared with plants infected without arbutin treatment. Moreover, in the arbutin-treated and infected plants the contents of free salicylic acid and its conjugates were also increased, partly owing to its biosynthesis via the phenylpropanoid pathway. We suggest that arbutin-induced abrogation of angular leaf spot disease in cucumber could be mediated by salicylic acid and cysteine-based signaling.
650 _aAmaranthus caudatus
650 _aIsocitrate lyase
650 _aGluoxylate cycle
700 1 _aWielanek, Marzena
_eco-author
700 1 _aChwatko, Grażyna
_eco-author
700 1 _aGłowacki, Rafał
_eco-author
700 1 _aLibik-Konieczny, Marta
_eco-author
700 1 _aPiątek, Milena
_eco-author
700 1 _aGajewska, Ewa
_eco-author
700 1 _aSkłodowska, Maria
_eco-author
856 _uhttps://doi.org/10.1016/j.jplph.2015.03.017
942 _2lcc
_cJA
999 _c169223
_d169223