Biosynthesis of a New Fusaoctaxin Virulence Factor in Fusarium graminearum Relies on a Distinct Path To Form a Guanidinoacetyl Starter Unit Priming Nonribosomal Octapeptidyl Assembly

2021 ◽  
Author(s):  
Zhijun Tang ◽  
Haoyu Tang ◽  
Wanqiu Wang ◽  
Yufeng Xue ◽  
Dandan Chen ◽  
...  
Keyword(s):  
Fusarium Graminearum ◽  
Virulence Factor ◽  
Starter Unit

The Fusarium Graminearum virulence factor FGL targets an FKBP12 immunophilin of wheat

Gene ◽  
2013 ◽  
Vol 525 (1) ◽  
pp. 77-83 ◽  
Author(s):  
Xiao-Wei Niu ◽  
Zi-Yang Zheng ◽  
Yi-Gao Feng ◽  
Wang-Zhen Guo ◽  
Xin-Yu Wang
Keyword(s):  
Fusarium Graminearum ◽  
Virulence Factor

scholarly journals A secreted lipase of Fusarium graminearum is a virulence factor required for infection of cereals

2005 ◽  
Vol 42 (3) ◽  
pp. 364-375 ◽  
Author(s):  
Christian A. Voigt ◽  
Wilhelm Schäfer ◽  
Siegfried Salomon
Keyword(s):  
Fusarium Graminearum ◽  
Virulence Factor ◽  
Secreted Lipase

Resistance-related metabolites in wheat against Fusarium graminearum and the virulence factor deoxynivalenol (DON)

Botany ◽  
2008 ◽  
Vol 86 (10) ◽  
pp. 1168-1179 ◽  
Author(s):  
V. Paranidharan ◽  
Y. Abu-Nada ◽  
H. Hamzehzarghani ◽  
A. C. Kushalappa ◽  
O. Mamer ◽  
...  
Keyword(s):  
Plant Defense ◽  
Fusarium Graminearum ◽  
Virulence Factor ◽  
Triticum Aestivum L ◽  
Wheat Breeding ◽  
Gas Chromatography Mass Spectrometry ◽  
Signal Molecules ◽  
Head Blight ◽  
Breeding Lines ◽  
Antimicrobial Metabolites

Inoculation with the virulence factor deoxynivalenol (DON) can induce disease symptoms in wheat ( Triticum aestivum L.) spikelets, even though it is not needed for the initial invasion by Fusarium graminearum Schwabe, thus the mechanism of plant defense against both the pathogen and DON, was investigated. Wheat cultivars that are resistant (‘Sumai3’) or susceptible (‘Roblin’) to fusarium head blight (FHB) were inoculated with F. graminearum, DON, or water. Inoculated spikelets were harvested 48 h after inoculation, the metabolites were extracted in methanol–water and chloroform, then derivatized and analyzed by gas chromatography – mass spectrometry. The metabolite peaks were deconvoluted and identified by manually matching the mass spectra with those in the NIST and GMD libraries. The peaks were aligned, and abundances were measured. A total of 117 metabolites were tentatively identified, including several antimicrobial metabolites and signal molecules or their precursors. Out of these 117 metabolites, 15 and 18 were identified as possible resistance-related (RR) metabolites, following F. graminearum (RRIF) and DON (RRID) inoculations, respectively, with 4 metabolites common to both. Canonical discriminant analysis of marginally significant metabolites (105) identified those with constitutive and induced resistance functions. The metabolites with high canonical loading to the canonical vectors were used to explain these functions. The putative roles of these RR metabolites in plant defense, their metabolic pathways, and their potential application for screening of wheat breeding lines for resistance to FHB are discussed.

scholarly journals Transcriptome analysis reveals infection strategies employed by Fusarium graminearum as a root pathogen

2020 ◽  
Author(s):  
Yi Ding ◽  
Donald M Gardiner ◽  
Kemal Kazan
Keyword(s):  
Fusarium Graminearum ◽  
Virulence Factor ◽  
Brachypodium Distachyon ◽  
Crown Rot ◽  
Health Concern ◽  
Root Infection ◽  
Head Blight ◽  
Transcriptional Responses ◽  
Below Ground

AbstractThe fungal pathogen Fusarium graminearum infect both heads and roots of cereal crops causing several economically important diseases such as head blight, seedling blight, crown rot and root rot. Trichothecene mycotoxins such as deoxynivalenol (DON), a well-known virulence factor, produced by F. graminearum (Fg) during disease development is also an important health concern. Although how F. graminearum infects above-ground tissues is relatively well studied, very little is known about molecular processes employed by the pathogen during below-ground infection. Also unknown is the role of DON during root infection. In the present study, we analyzed the transcriptome of F. graminearum during root infection of the model cereal Brachypodium distachyon. We also compared our Fg transcriptome data during root infection with those reported during wheat head infection. These analyses suggested that both shared and unique infection strategies employed by the pathogen during colonization of different host tissues. Several metabolite biosynthesis genes induced in F. graminearum during root infection could be linked to phytohormone production, implying that the pathogen likely interferes root specific defenses. In addition, to understand the role of DON in Fg root infection, we analyzed the transcriptome of the DON deficient Tri5 mutant. These analyses showed that the absence of DON had a significant effect on fungal transcriptional responses. Although DON was produced in infected roots, this mycotoxin did not act as a virulence factor during root infection. Our results reveal new mechanistic insights into the below-ground strategies employed by F. graminearum that may benefit the development of new genetic tools to combat this important cereal pathogen.

A tomatinase-like enzyme acts as a virulence factor in the wheat pathogen Fusarium graminearum

2017 ◽  
Vol 100 ◽  
pp. 33-41 ◽  
Author(s):  
Jason Carere ◽  
Aurélie H. Benfield ◽  
Mélodie Ollivier ◽  
Chunji J. Liu ◽  
Kemal Kazan ◽  
...  
Keyword(s):  
Fusarium Graminearum ◽  
Virulence Factor

Detoxification of zearalenone produced by Fusarium graminearum by purified tannase from Citrobacter freundii

2015 ◽  
Vol 2 (1) ◽  
pp. 001-008
Author(s):  
Nsayef Muslim Sahira ◽  
◽  
N. Mahammed Alaa ◽  
M.S. AL_Kadmy Israa ◽  
Nsayef Muslim Sraa
Keyword(s):  
Fusarium Graminearum ◽  
Citrobacter Freundii

Механизмы устойчивости к фунгицидам фитопатогенного гриба Fusarium graminearum

2020 ◽  
Vol 54 (6) ◽  
pp. 391-403
Author(s):  
Г. Д. Соколова ◽  
А. П. Глинушкин
Keyword(s):  
Fusarium Graminearum
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