scholarly journals Fusarium udum revisited: a common, but poorly understood member of the Fusarium fujikuroi species complex

2018 ◽  
Vol 18 (1-2) ◽  
pp. 107-117 ◽  
Author(s):  
Ludwig H. Pfenning ◽  
Maruzanete Pereira de Melo ◽  
Marileide Moreira Costa ◽  
Ailton Reis ◽  
Cleia Santos Cabral ◽  
...  
2021 ◽  
Vol 7 (9) ◽  
pp. 784
Author(s):  
Valeria Tava ◽  
Anna Prigitano ◽  
Paolo Cortesi ◽  
Maria Carmela Esposto ◽  
Matias Pasquali

Fusarium musae belongs to the Fusarium fujikuroi species complex. It causes crown rot disease in banana but also keratitis and skin infections as well as systemic infections in immunocompromised patients. Antifungal treatments in clinical and agricultural settings rely mostly on molecules belonging to the azole class. Given the potential risk of pathogen spread from food to clinical settings, the goal of the work was to define the level of susceptibility to different azoles of a worldwide population of F. musae. Eight fungicides used in agriculture and five antifungals used in clinical settings (4 azoles and amphotericin B) were tested using the CLSI (Clinical and Laboratory Standards Institute) protocol methodology on 19 F. musae strains collected from both infected patients and bananas. The level of susceptibility to the different active molecules was not dependent on the source of isolation with the exception of fenbuconazole and difenoconazole which had a higher efficiency on banana-isolated strains. Minimal inhibitory concentrations (MICs) of the different molecules ranged from 0.12–0.25 mg/L for prochloraz to more than 16 mg/L for tetraconazole and fenbuconazole. Compared to the F. verticillioides, F. musae MICs were higher suggesting the importance of monitoring the potential future spread of this species also in clinical settings.


2020 ◽  
Author(s):  
Camila Primieri Nicolli ◽  
Miriam Haidukowskic ◽  
Antonia Susca ◽  
Larissa Bitencourt Gomes ◽  
Antonio Logrieco ◽  
...  

Fusarium fujikuroi species complex (FFSC) species are commonly encountered infecting rice, but knowledge of the diversity and toxigenic potential of the species is lacking in Brazil, the largest rice-producing country outside Asia. One hundred FFSC isolates obtained from national rice were identified using morphology and phylogeny of TEF, CAL and TUB genes. Eight previously known and one new phylogenetic species were identified. Three species accounted for around 60% of the strains: F. fujikuroi (n = 23), F. proliferatum (n = 22) and F. verticillioides (n = 16). The less frequent species were F. volatile (n = 8), F. anthophilum (n = 6), F. pseudocircinatum (n = 4), F. sterilihyphosum (n = 2) and F. begoniae (n = 1). The new Fusarium sp. was represented by 18 isolates. All species produced at least one of the analyzed mycotoxins [beauvericin (BEA), fumonisins (FBs), moniliformin (MON) and enniatins (ENNs)]. BEA was produced by all species but F. verticillioides. The FBs (mainly FB1) were produced mostly by F. fujikuroi, F. proliferatum and F. verticillioides. F. begoniae and F. verticillioides did not produce ENNs and F. sterilihyphosum and F. begoniae did no produce MON, while the other species produced MON and ENNs. Our results contribute new knowledge of the diversity, geographical distribution and hosts of FFSC species.


Mycologia ◽  
2019 ◽  
Vol 111 (5) ◽  
pp. 772-781 ◽  
Author(s):  
Amelia C. Montoya-Martínez ◽  
Gerardo Rodríguez-Alvarado ◽  
Sylvia P. Fernández-Pavía ◽  
Robert H. Proctor ◽  
Hye-Seon Kim ◽  
...  

2018 ◽  
Vol 267 ◽  
pp. 62-69 ◽  
Author(s):  
Jung-Hye Choi ◽  
Seolhee Lee ◽  
Ju-Young Nah ◽  
Hee-Kyoung Kim ◽  
Ji-Seon Paek ◽  
...  

Plant Disease ◽  
2020 ◽  
Vol 104 (8) ◽  
pp. 2193-2201 ◽  
Author(s):  
Jianbo Qiu ◽  
Yunan Lu ◽  
Dan He ◽  
Yin-Won Lee ◽  
Fang Ji ◽  
...  

Species belonging to the Fusarium fujikuroi species complex (FFSC) are of vital importance and are a major concern for food quantity and quality worldwide, as they not only cause serious diseases in crops but also produce various mycotoxins. To characterize the population structure and evaluate the risk of poisonous secondary metabolites, a total of 237 candidate strains were isolated from rice, maize, and soybean samples in Jiangsu Province, China. Species identification of the individual strain was accomplished by sequencing the translation elongation factor 1α gene (TEF-1α) and the fumonisin (FB) synthetic gene (FUM1). The distribution of Fusarium species among the different crops was observed. The maize seeds were dominated by F. proliferatum (teleomorph, Gibberella intermedia) and F. verticillioides (teleomorph, G. moniliformis), whereas F. fujikuroi (teleomorph, G. fujikuroi) was the most frequently isolated species from rice and soybean samples. In addition, phylogenetic analyses of these strains were performed, and the results suggested clear groups showing no obvious relationship with the origin source. FFSC species pathogenicity and toxigenicity were studied. All of the species reduced the rice seed germination rate, with no significant differences. F. fujikuroi showed two distinct patterns of influencing the length of rice seedlings, which were correlated with FBs and gibberellic acid synthesis. FBs were mainly produced by F. verticillioides and F. proliferatum. F. proliferatum and F. fujikuroi also produced moniliformin and beauvericin. The toxigenicity of F. andiyazi (teleomorph, G. andiyazi) was extremely low. Further analysis indicated that the sequence variations in TEF-1α and the differences in the expression levels of the toxin synthesis genes were associated with the diversity of secondary metabolites in F. fujikuroi strains. These findings provide insight into the population-level characterization of the FFSC and might be helpful in the development of strategies for the management of diseases and mycotoxins.


2017 ◽  
Vol 110 (6) ◽  
pp. 819-832 ◽  
Author(s):  
Tarek A. A. Moussa ◽  
Hassan S. Al-Zahrani ◽  
Naif M. S. Kadasa ◽  
Sarah A. Ahmed ◽  
G. Sybren de Hoog ◽  
...  

2014 ◽  
Vol 163 (6) ◽  
pp. 486-497 ◽  
Author(s):  
Karla Y. Leyva-Madrigal ◽  
Claudia P. Larralde-Corona ◽  
Miguel A. Apodaca-Sánchez ◽  
Francisco R. Quiroz-Figueroa ◽  
Priscila A. Mexia-Bolaños ◽  
...  

2020 ◽  
Vol 330 ◽  
pp. 108667 ◽  
Author(s):  
Camila P. Nicolli ◽  
Miriam Haidukowski ◽  
Antonia Susca ◽  
Larissa B. Gomes ◽  
Antonio Logrieco ◽  
...  

IMA Fungus ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 37-48 ◽  
Author(s):  
Gerda Fourie ◽  
Nicolaas A. Van der Merwe ◽  
Brenda D. Wingfield ◽  
Mesfin Bogale ◽  
Michael J. Wingfield ◽  
...  

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