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題 名 | 篩選拮抗真菌防治臺灣二葉松苗猝倒病=The Screening of Fungal Antagonists to Control Rhizoctonia Damping off of Pinus Taiwanesis |
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作 者 | 郭章信; 蔡竹固; 李明仁; | 書刊名 | 嘉義技術學院學報 |
卷 期 | 60 1998.10[民87.10] |
頁 次 | 頁81-88 |
分類號 | 436.33 |
關鍵詞 | 臺灣二葉松; 苗猝倒病; 拮抗真菌; Pinus Taiwanensis; Rhizoctonia damping off; Fungal antagonists; |
語 文 | 中文(Chinese) |
中文摘要 | 自嘉義林區管理處奮起湖工作站中興苗圃,採集罹病臺灣二葉松幼苗,經組織分離後, 病原菌鑑定為 Rhizoctonia solani Kuehn,經接種試驗確定立枯絲核菌對臺灣二葉 松的病原性。篩選拮抗真菌方面,自嘉義奮起湖中興苗圃土壤中,以及分別自紅檜與臺灣二 葉松根圈、根表土壤共分離純化得到 174 株土壤真菌。 將分離所得到之土壤真菌逐一與立 枯絲核菌及 2 種腐霉菌分別在 PDA、CYEA及SEA 培養基平板上做對峙培養, 測試真菌對病 原菌的抗生作用,所篩選的拮抗菌,以 CYF-1、CYF-6、CYF-17 及 CYF-42 之拮抗效果最好 ,其中 CYF-17 經鑑定為 Aspergillus sp., CYF-42 經鑑定為 Penicillium sp.,CYF- 1 及 CYF-6 屬於不完全菌叢梗孢科,種名有待鑑定。 |
英文摘要 | Rhizoctonia solani, the causal agent of Taiwan red pine (Pinus taiwanensis), were obtained from Fen-Chi Lake in Chiayi by using tissue isolation. For biological controlling damping-off, one hundred and seventy four isolates of soil fungi were obtained from field soils, roots of Formosan red cypress and Taiwan red pine by using peptone dextrose rosebengal agar and streptomycin water agar through soil dilution plate method. Dual cultures of each fungal isolate against Rhizoctonia solani, Pythium aphanidermatum and Pythium sp. were individually carried out on potato dextrose agar (PDA), Czapek Dos + 0.05 yeast extract agar (CYEA), and soil extract agar (SEA) at the same time. Four isolates, i.e., CYF-1, CYF-6, CYF-17 and CYF-42 on all tested media exhibited markedly antagonistic zones. The CYF-17 and CYF-42 were identified as Aspergillus sp. and Penicillium sp. Both CYF-1 and CYF-6 were classified on Moniliaceae and unidentified. |
本系統中英文摘要資訊取自各篇刊載內容。