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Atr1 and Chk1 Are Required for Full Virulence in U. maydis.
(A) Quantification of symptoms in maize plants after 14 d after infection with crosses of wild-type (control, UCM350xUCM520), brh2Δ (UCM565xUCM575), chk1Δ (UMP122xUMP129), and atr1Δ (UCS9xUCS10) strains.
(B) Morphology of tumors caused by wild-type (control) and compatible combinations of brh2Δ, chk1Δ, and atr1Δ strains. Representative tumors were photographed 16 d after infection. Arrows mark shoot-like structures.
