Analysis of Fusarium graminearum Species Complex from Freshly Harvested Rice in Jiangsu Province (China)

• DOI: 10.1094/pdis-01-20-0084-re
• Publication Date: 2020-03-04T16:01:55Z
• Authors: Fei Dong; Xiao Zhang; Jian Hong Xu; Jian Rong Shi; Yin-Won Lee; Xin Yuan Chen; Yun Peng Li; Mduduzi P. Mokoena; Ademola O. Olaniran
• Keywords: Chemotype

Members of Fusarium graminearum species complex (FGSC) are the major pathogens that cause head blight (FHB) in cereals worldwide. Symptoms FHB on rice, including dark staining or browning rice glumes, were recently observed Jiangsu Province, China. To improve our understanding involved, 201 FGSC isolates obtained from freshly harvested samples and identified by phylogenetic analyses. Among isolates, 196 F. asiaticum remaining 5 graminearum. Trichothecene chemotype chemical analyses showed 68.4% 3-acetyldeoxynivalenol (3ADON) remainder nivalenol (NIV) chemotype. All 15-acetyldeoxynivalenol Pathogenicity assays both 3ADON NIV chemotypes could infect wheat spikes. severity trichothecene toxin analysis revealed with was less aggressive than wheat, while NIV-producing strains more virulent 3ADON-producing rice. different did not show significant differences mycelial growth, sporulation, conidial dimensions, perithecial production. These findings would provide useful information for developing management strategies control