Fusarium fujikuroi species complex in Brazilian rice: Unveiling increased phylogenetic diversity and toxigenic potential.

Autor: Nicolli CP; Plant Pathology Department, Universidade Federal de Lavras, 37200-000 Lavras, MG, Brazil. Electronic address: camilaprimierinicolli@gmail.com., Haidukowski M; Institute of Science of Food Production, 70126 Bari, Italy., Susca A; Institute of Science of Food Production, 70126 Bari, Italy., Gomes LB; Plant Pathology Department, Universidade Federal de Lavras, 37200-000 Lavras, MG, Brazil., Logrieco A; Institute of Science of Food Production, 70126 Bari, Italy., Stea G; Institute of Science of Food Production, 70126 Bari, Italy., Del Ponte EM; Plant Pathology Department, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil., Moretti A; Institute of Science of Food Production, 70126 Bari, Italy., Pfenning LH; Plant Pathology Department, Universidade Federal de Lavras, 37200-000 Lavras, MG, Brazil.
Jazyk: angličtina
Zdroj: International journal of food microbiology [Int J Food Microbiol] 2020 Oct 02; Vol. 330, pp. 108667. Date of Electronic Publication: 2020 Jun 03.
DOI: 10.1016/j.ijfoodmicro.2020.108667
Abstrakt: 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 novel Fusarium 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 novel Fusarium species 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 not produce MON, while the other species produced MON and ENNs. Our results add new knowledge of the diversity, geographical distribution and host range of FFSC species.
(Copyright © 2020 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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