抗氰烯菌酯的禾谷镰刀菌nit突变体的诱导及其生物学特性

Scientia Agricultura Sinica ›› 2007, Vol. 40 ›› Issue (4): 735-740 .

• PLANT PROTECTION • Previous Articles Next Articles

Recovery and Characterization of Nitrate Nonutilizing Mutants of JS399-19-resistant Fusarium graminearum

Yu Chen ChangJun Chen JianXin Wang LiHua Jin

南京农业大学植保学院农业部病虫监测与治理重点实验室

Received:2006-04-10 Revised:1900-01-01 Online:2007-04-10 Published:2007-04-10
Contact: Yu Chen

Abstract

Abstract: Fifty nitrate nonutilizing(nit) mutants were recovered from 3 JS399-19-resistant mutants of Fusarium graminearum cultured on MMC media. Some biological properties,such as growth rate , cultural characters, conidial production , sexual reproduction ability and pathogenicity were compared between JS399-19-resistant nit mutants and their parental isolates.The results showed that there were no significant differences in growth rate, cultural characters and pathogenicity between JS399-19-resistant nit mutants and their parental isolates.But the conidiophore production and the sexual reproduction ability changed more or less.The results also indicated that there was no cross resistance toward chlorate and JS399-19 in Fusarium graminearum,and the resistance could be inherited independently.therefore,the nit can be used as a genetic marker for the research in the genetics of the resistance to JS399-19 in Fusarium graminearum.

Key words: Fusarium graminearum, JS399-19-resistant, biological properties, genetic marker

Yu Chen ChangJun Chen JianXin Wang LiHua Jin . Recovery and Characterization of Nitrate Nonutilizing Mutants of JS399-19-resistant Fusarium graminearum[J].Scientia Agricultura Sinica, 2007, 40(4): 735-740 .

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