Diversity of Pea-Associated F. proliferatum and F. verticillioides Populations Revealed by FUM1 Sequence Analysis and Fumonisin Biosynthesis

Toxins

Agnieszka Waśkiewicz²  Łukasz Stępień¹  Karolina Wilman¹ 

[1] Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, Poznań 60-479, Poland; E-Mails:;Department of Chemistry, Poznan University of Life Sciences, Wojska Polskiego 75, Poznań 60-625, Poland

关键词: FUM cluster;    fumonisins;    Fusarium proliferatum;    Fusarium verticillioides;    pea seeds;    phylogenetic analysis;   

DOI  :  10.3390/toxins5030488

来源: mdpi

【 摘 要 】

Fusarium proliferatum and F. verticillioides are considered as minor pathogens of pea (Pisum sativum L.). Both species can survive in seed material without visible disease symptoms, but still contaminating it with fumonisins. Two populations of pea-derived F. proliferatum and F. verticillioides strains were subjected to FUM1 sequence divergence analysis, forming a distinct group when compared to the collection strains originating from different host species. Furthermore, the mycotoxigenic abilities of those strains were evaluated on the basis of in planta and in vitro fumonisin biosynthesis. No differences were observed in fumonisin B (FB) levels measured in pea seeds (maximum level reached 1.5 μg g⁻¹); however, in rice cultures, the majority of F. proliferatum genotypes produced higher amounts of FB₁–FB₃ than F. verticillioides strains.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.