00529naa a2200181 a 450000100080000000500110000800800410001910000120006024501240007226000090019665000140020565000120021965000100023170000110024170000140025270000110026677300700027718398012010-06-01 1993 bl --- 0-- u #d1 aCAO, B. aUltrastructure of leaf tissues of resistant or susceptible wheat exposed to toxin produced by Helminthosporium sativum. c1993 aCitologia aDoença aTrigo1 aWU, W.1 aCHENG, H.1 aWU, Y. tActa Phytopathologica Sinicagv. 23, n. 2, p. 107-113, may. 1993.