Induction of basal resistance by methyl jasmonate against Fusarium culmorum in bread wheat

P. Motallebi; S. Tonti; V. Niknam; H. Ebrahimzadeh; A. Pisi; P. Nipoti; M. Hashemi; A. Prodi

doi:10.1556/0806.45.2017.008

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Cereal Research Communications

Volume/Issue:: Volume 45: Issue 2

Induction of basal resistance by methyl jasmonate against Fusarium culmorum in bread wheat

Authors:

P. Motallebi

P. Motallebi University of Tehran, 14155-6455 Tehran, Iran
Alma Mater Studiorum University of Bologna, Viale Giuseppe Fanin 40, 40127 Bologna, Italy

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S. Tonti

S. Tonti Alma Mater Studiorum University of Bologna, Viale Giuseppe Fanin 40, 40127 Bologna, Italy

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V. Niknam

V. Niknam University of Tehran, 14155-6455 Tehran, Iran

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H. Ebrahimzadeh

H. Ebrahimzadeh University of Tehran, 14155-6455 Tehran, Iran

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A. Pisi

A. Pisi Alma Mater Studiorum University of Bologna, Viale Giuseppe Fanin 40, 40127 Bologna, Italy

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P. Nipoti

P. Nipoti Alma Mater Studiorum University of Bologna, Viale Giuseppe Fanin 40, 40127 Bologna, Italy

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M. Hashemi

M. Hashemi Seed and Plant Improvement Institute, Karaj, Iran

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A. Prodi

A. Prodi Alma Mater Studiorum University of Bologna, Viale Giuseppe Fanin 40, 40127 Bologna, Italy

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Pages:: 248–259

Online Publication Date:: Jun 2017

Publication Date:: 01 Jun 2017

Article Category:: Research Article

DOI:: https://doi.org/10.1556/0806.45.2017.008

Keywords:: Fusarium culmorum ; systemic acquired resistance; methyl jasmonate; realtime quantitative PCR; Triticum aestivum

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Fusarium culmorum is a soilborne fungal pathogen, agent of crown and root rot disease (FCRR), responsible of major economic losses in wheat plants. This host—pathogen interaction, following methyl jasmonate (MeJA) application at the beginning of the necrotrophic stage of infection, has not been previously studied at molecular level. In this study, using real-time quantitative PCR, the emerging role of MeJA in the basal resistance of two bread wheat cultivars against F. culmorum has been investigated. MeJA treatment was dispensed 6 hours after pathogen inoculation (6 hai) to detect the defense response at the beginning of the necrotrophic stage. The expression of phenylalanine ammonia-lyase (PAL), lipoxygenase (LOX), cytochrome P450 (CYP709C1) genes and of some pathogenesis related (PR) genes, including PR3, PR4 and PR9, was examined in both root and crown tissues of the susceptible wheat cultivar Falat and the tolerant cultivar Sumai3. The pathogen responsive defense genes were induced in both cultivars, with a higher level of induction in Sumai3 than in Falat. MeJA treatment reduced the symptoms in cv Falat, whereas no significant effects have been detected in cv Sumai3. In fact, MeJA treatment caused a striking difference in defense gene induction. The genetic change was present in root and crown tissues of both wheat cultivars, demonstrating a systemic signaling pathway. The chemically induced protection correlated with induction of the F. culmorum-responsive genes supports a possible role of jasmonate signaling in regulating basal resistance in wheat–F. culmorum interaction.

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Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company

Print ISSN:: 0133-3720

Online ISSN:: 1788-9170

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Cereal Research Communications
Language	English
Size	A4
Year of Foundation	1973
Volumes per Year	1
Issues per Year	4
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0133-3720 (Print)
ISSN	1788-9170 (Online)