The results of inoculating corn seedeing with Helminthosporium turcicum and treating corn root cap cells with cultural filtrates of H. turcicum indicated that H.turcicum could produce pathotoxin either in vivo or in vitro.

 
  • 用大斑菌接種玉米幼苗和用大斑菌的培養濾液處理玉米根冠細胞的試驗證明,大斑菌無(wú)論在體內或體外均能產(chǎn)生致病毒素。
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