Detailed Information on Publication Record
2013
Elucidation of signaling molecules involved in ergosterol perception in tobacco
DADÁKOVÁ, Kateřina, Jitka KLEMPOVÁ, Tereza JENDRIŠÁKOVÁ, Jan LOCHMAN, Tomáš KAŠPAROVSKÝ et. al.Basic information
Original name
Elucidation of signaling molecules involved in ergosterol perception in tobacco
Authors
DADÁKOVÁ, Kateřina (203 Czech Republic, belonging to the institution), Jitka KLEMPOVÁ (203 Czech Republic, belonging to the institution), Tereza JENDRIŠÁKOVÁ (203 Czech Republic), Jan LOCHMAN (203 Czech Republic, belonging to the institution) and Tomáš KAŠPAROVSKÝ (203 Czech Republic, guarantor, belonging to the institution)
Edition
Plant Physiol Biochem, Elsevier Science, 2013, 0981-9428
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
Netherlands
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.352
RIV identification code
RIV/00216224:14310/13:00066829
Organization unit
Faculty of Science
UT WoS
000329007000016
Keywords in English
Ergosterol; Tobacco; Defense; Signaling; Salicylic acid; Jasmonic acid; Spermine
Tags
International impact, Reviewed
Změněno: 8/12/2015 09:29, prof. Mgr. Tomáš Kašparovský, Ph.D.
Abstract
V originále
Ergosterol, a principal compound of the fungal plasma membrane, is regarded as a pathogen-associated molecular pattern. In the present study, the role of salicylic acid (SA), jasmonic acid (JA) and spermine signaling pathways after ergosterol elicitation were evaluated. SA, JA and spermine production, as well as accumulation of transcripts for a lipoxygenase (NaLOX3) gene, the phenylalanine-ammonia lyase gene, selected pathogenesis-related genes (PR1, PR5), and peroxidase tPOXC1 were determined in tobacco (Nicotiana tabacum L. cv. Xanthi) in response to ergosterol elicitation. To understand the sequence of the signaling cascade, several representative steps involved in the synthesis of crucial signaling molecules were targeted using specific inhibitors. SA signaling pathway, together with calmodulin-dependent protein kinases and nitric oxide, was demonstrated to play an important role in the induction of defense-related genes following ergosterol treatment. The results suggested that nitric oxide participates in defense-related gene activation following ergosterol treatment but does not directly participate in activation of reactive oxygen species production. The induction of PR5 and tPOXC1 transcripts was found to be not fully dependent on calmodulin/Ca2+ and SA signaling, contrary to the PR1a transcript. A possible candidate for this SA-independent pathway is the spermine pathway, as elevated spermine levels were detected following ergosterol treatment.
Links
GAP501/12/0590, research and development project |
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