Diversity of Fusarium graminearum Species Complex isolated from wheat and native grasses of Brazil.

• Grant number: 16/04364-5
• Support Opportunities: Regular Research Grants
• Start date: June 01, 2016
• End date: May 31, 2018
• Field of knowledge: Agronomical Sciences - Food Science and Technology - Food Science
• Principal Investigator: Benedito Corrêa
• Grantee: Benedito Corrêa
• Host Institution: Instituto de Ciências Biomédicas (ICB). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The presence of mycotoxins in food, including cereals cause significant economic losses. The F. graminearum Species Complex (FGSC) is the main pathogen of Fusarium head blight (FHB) in wheat affecting the inflorescence. The fungus is capable of producing trichothecenes type B and zearalenone, which are important mycotoxins due to its impact on the economy, human and animal health and agriculture. The FGSC presents multiple morphological cryptic species, however five clades and 16 phylogenetic species were previously described with these clades associated with biogeographical regions. Lineage 1 is comprised of isolates from South America and corresponds to the following species F. meridionale, F. cortaderiae, F. austroamericanum and F. brasilicum. Previous studies involving the characterization of fungal populations from native plants have demonstrated that these plants can act as reservoirs for pathogenic fungi, or new pathogens could originate and disperse from these native reservoirs into agriculture. The aim of this study is to characterize the diversity and genomic location of TRI and ZEA clusters in the South American FGSC lineage and to compare the populations of FGSC isolated from wheat and native grasses of the Southern region of Brazil, in order to determine the potential genetic exchange between these two populations. Further evidence supporting this proposal is discussed. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

TRALAMAZZA, SABINA MOSER; ROCHA, LILIANA OLIVEIRA; OGGENFUSS, URSULA; CORREA, BENEDITO; CROLL, DANIEL. Complex Evolutionary Origins of Specialized Metabolite Gene Cluster Diversity among the Plant Pathogenic Fungi of the Fusarium graminearum Species Complex. GENOME BIOLOGY AND EVOLUTION, v. 11, n. 11, p. 3106-3122, NOV 2019. (16/04364-5, 17/22369-7)

TRALAMAZZA, SABINA MOSER; PIACENTINI, KARIM CRISTINA; SAVI, GEOVANA DAGOSTIM; CARNIELLI-QUEIROZ, LORENA; FONTES, LIVIA DE CARVALHO; MARTINS, CAMILA SIEDLARCZYK; CORREA, BENEDITO; ROCHA, LILIANA OLIVEIRA. Wild rice (O. latifolia) from natural ecosystems in the Pantanal region of Brazil: Host to Fusarium incarnatum-equiseti species complex and highly contaminated by zearalenone. International Journal of Food Microbiology, v. 345, MAY 2 2021. (16/04364-5, 17/04811-4, 15/21378-7)

SALVADORI, MARCIA R.; ANDO, ROMULO A.; OLLER NASCIMENTO, CLAUDIO A.; CORREA, BENEDITO. Dead biomass of Amazon yeast: A new insight into bioremediation and recovery of silver by intracellular synthesis of nanoparticles. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, v. 52, n. 11, p. 1112-1120, 2017. (16/04364-5)