The review's strongest claims rest on functional genomics of F. graminearum: disruption of FgTRI5 (trichodiene synthase) blocks trichothecene synthesis and reduces virulence, yet Boenisch and SchΓ€fer showed DON-independent formation of infection structures, implying trichothecenes act mainly in later necrotrophic spread rather than initial penetration . On the host side, ~52β100+ QTL are catalogued; the bar chart below compares the subset with explicit phenotypic variation estimates reported in the text.
Chemical and biological control sections are more cautious in substance but thinner in evidence: fungicides (tebuconazole, carbendazim) provide only partial protection with documented resistance emerging (tebuconazole-resistant isolates in the USA; benzimidazole-resistant strains in China), and biocontrol agents reduced FHB severity by >23% and DON by 74β78% in the cited Pseudomonas work, with no complete control achieved .
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