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題 名 | Continuing Variation in Colony Morphology and Fungicide Sensitivity in Phytophthora Cinnamomi Following Exposure to Chloroneb=Phytophthora Cinnamomi經Chloroneb處理後產生菌落形態與殺菌劑感藥性之連續變異 |
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作 者 | 鄭小波; 柯文雄; | 書刊名 | Botanical Bulletin of Academia Sinica |
卷 期 | 38:3 1997.07[民86.07] |
頁 次 | 頁177-182 |
分類號 | 433.85 |
關鍵詞 | 變異; 菌落形態; 殺菌劑感藥性; Chloroneb; Colony morphology; Fungicide sensitivity; Phtophthora cinnamomi; Variation; |
語 文 | 英文(English) |
中文摘要 | 將一株同宗配合的Phytophthora cinnamomi菌株培養於含有殺菌劑chloroneb之洋 菜培養基中,在3星期內形成快速生長之抗藥扇形面。分離自抗藥扇形面之抗藥菌株於菌落形 態上與原來菌株具有平展(F)型,但其游走孢子菌株中,產生具有棉花(C)型菌落之抗藥菌株及 F型菌株具有抗藥性及感藥性。C型菌株連續三代之游走孢子菌株均含有F型回復感藥菌株。 雖然F型回復感藥菌株之游走孢子菌株均為相同形態之菌落,但經chloroneb處理在較短時間 內可產生更多抗藥扇形面。分離自這些抗藥扇形面之游走孢子菌株為C型抗藥性和F型抗藥性 或感藥性。C和F型抗藥菌株之游走孢子菌株均與前述的結果一樣表現不穩定。C和F型抗藥菌 株形成之游走孢子大多(89-99%)具有單一細胞核。 |
英文摘要 | A homothallic isolate of Phytophthora cinnamomi grown on agar medium containing fungicide chloroneb, produced fast growing resistant sectors within 3 weeks, The colony of a fungicide-resistant mutant, which was similar to the original flat (F) type, gave rise to single zoospore cultures consisting of a new cottony (C) type resistant to chloroneb and the F type either resistant or sensitive to chloroneb. The F type was continuously segregated from the C type in three successive zoospore generations. Although the chloroneb-sensitive F type revertants were stable, they produced more resistant sectors in a shorter time than did wild type when exposed again to chloroneb. Single zoospore cultures obtained from these resistant sectors were C type resistant to chloroneb and F type either resistant or sensitive to chloroneb. Both C and F type cultures resistant to chloroneb were unstable and segregated in successive zoospore generations in a fashion similar to that described above. The majority of zoospores (89 to 99%) produced by both C and F types were uninucleate. |
本系統中英文摘要資訊取自各篇刊載內容。