In vitro evaluation of antimicrobial peptides against Fusarium species

2009 ◽  
Vol 89 (4) ◽  
pp. 739-743 ◽  
Author(s):  
A Badea ◽  
F Eudes ◽  
R Graf ◽  
A Laroche ◽  
A E Berg ◽  
...  

The in vitro activity of five antimicrobial peptides was evaluated against several Fusarium species that affect wheat in Canada. Among the peptides tested (10R, 11R, BMAP-18, MsrA2 and MsrA3) 10R was most effective against conidial germination, whereas MsrA2 showed activity against mycelial growth. Antimicrobial peptides 10R and MsrA2 were identified as potential candidates for engineering resistance against common species causing fusarium head blight in wheat. Key words: Antimicrobial peptides, fusarium head blight, conidia, mycelia

2012 ◽  
Vol 18 (4) ◽  
pp. 383-387 ◽  
Author(s):  
X. Vila-Farres ◽  
C. Garcia de la Maria ◽  
R. López-Rojas ◽  
J. Pachón ◽  
E. Giralt ◽  
...  

1996 ◽  
Vol 64 (3) ◽  
pp. 926-932 ◽  
Author(s):  
Y Miyakawa ◽  
P Ratnakar ◽  
A G Rao ◽  
M L Costello ◽  
O Mathieu-Costello ◽  
...  

2019 ◽  
Vol 68 (2) ◽  
pp. 211-215 ◽  
Author(s):  
Elena Portell-Buj ◽  
Andrea Vergara ◽  
Izaskun Alejo ◽  
Alexandre López-Gavín ◽  
Maria Rosa Monté ◽  
...  

2013 ◽  
Vol 19 (9) ◽  
pp. 554-565 ◽  
Author(s):  
A. A. Romani ◽  
M. C. Baroni ◽  
S. Taddei ◽  
F. Ghidini ◽  
P. Sansoni ◽  
...  

2017 ◽  
Vol 6 (5) ◽  
pp. 186-193
Author(s):  
Vipin Panwar ◽  
Ashok Aggarwal ◽  
Surinder Paul ◽  
Virender Singh ◽  
Pankaj K. Singh ◽  
...  

Fusarium head blight (FHB) or head scab is emerging as a destructive disease affecting the quantity and quality of wheat worldwide. Several Fusarium spe-cies have been associated with the disease but their composition varies among geographical regions and years. Climatic factors like temperature, pH and humidity influence the growth, survival and infestation of Fusarium species. In the present study, response of thirty six isolates of three Fusarium spp. viz F. graminearum, F. oxysporum and F. pallidoroseum (F. semitectum) to different temperature and pH was assessed by analysing their in vitro growth rate (mm/day) on potato dextrose agar (PDA) medium. We found that all the isolates responded differentially but interestingly isolates of F. graminearum showed better tolerance at broader range of temperature and pH. This attributes make F. graminearum a widely distributed and potent pathogen of wheat.


1994 ◽  
Vol 72 (2) ◽  
pp. 161-167 ◽  
Author(s):  
Zhivko Atanassov ◽  
Chiharu Nakamura ◽  
Naoki Mori ◽  
Chukichi Kaneda ◽  
Hajime Kato ◽  
...  

In vitro production of trichothecene mycotoxins, deoxynivalenol, nivalenol, T-2 toxins, and their derivatives was studied in rice culture using 30 strains from seven Fusarium species. Six strains of three Fusarium species were selected for the evaluation of mycotoxin production and pathogenicity after artificial inoculation to seven wheat lines with different levels of resistance or susceptibility and their eight F1's. Three criteria were used for the evaluation: the reduction of seed set, the reduction of grain weight, and the concentration of mycotoxins in infected grain. Significant variability was observed among Fusarium strains, wheat genotypes, and in the interaction between them. The contribution of Fusarium strains, however, was far greater than that of the other two factors. The kinds and relative amounts of mycotoxins produced in rice culture were consistent with those present in infected grain with some exceptions. Significant correlations were found between the grain weight reduction and the mycotoxin concentration and between the level of resistance of the wheat genotypes under the artificial and natural conditions of infection. The biological role of Fusarium mycotoxins in pathogenicity and wheat resistance to Fusarium head blight is discussed. Key words: Fusarium head blight (scab), Fusarium mycotoxins, Fusarium pathogenicity, wheat resistance to Fusarium head blight.


2015 ◽  
Vol 55 (1) ◽  
pp. 94-109 ◽  
Author(s):  
Leszek Lenc

Abstract Fusarium head blight (FHB) incidence, and colonisation of grain by Fusarium species on winter wheat grown in organic, integrated, and conventional systems as well as in monoculture, were studied locally in Poland, from 2002 to 2010. Fusarium head blight incidence differed throughout the study years. It was found to occur the most where rainfall was highest and where rainfall was the most prolonged before, during, and after flowering of wheat. Fusarium head blight incidence was generally less on wheat grown organically than on wheat grown in other systems. In some years, FHB was noted more in monocultures than in other systems. Fusarium poae was the most common species of FHB populations in wheat kernels, followed by F. avenaceum and F. tricinctum. Other species which occurred more rarely or sporadically were: F. culmorum, F. equiseti, F. graminearum, F. langsethiae, F. oxysporum, and F. sporotrichioides. There were found to be significant effects of the cropping system on grain colonisation by Fusarium in some years. There was a positive correlation between FHB incidence and number of kernels colonised and damaged by Fusarium, in all four systems. Inferences were drawn concerning the effects of different procedures in different production systems and the possible value for controlling FHB


Planta Medica ◽  
2012 ◽  
Vol 78 (05) ◽  
Author(s):  
A Husni ◽  
S Ross ◽  
O Dale ◽  
C Gemelli ◽  
G Ma ◽  
...  

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