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相關文獻
- 臺灣土壤中立枯絲核菌不同菌群之研究
- Studies on the Presence of Plasmid-like DNAs Among Rhizoctonia spp. Isolated from Some Important Crops in Taiwan
- 立枯絲核菌對賓克隆殺菌劑抗性及敏感性菌株之質體狀DNA的差異分析
- 土壤因子與拮抗菌對百合根腐病菌(Rhizoctonia solani)存活的影響
- 利用拮抗菌--蛭石夾層法防治立枯絲核菌引起之幼苗猝倒病
- 立枯絲核菌引起山木麻黃和大花紫薇苗猝倒病
- Influence of Bean Seedling Root Exudates on the Rhizosphere Colonization by Trichoderma Lignorum for the Control of Rhizoctonia Solani
- 立枯絲核菌對賓克隆殺菌劑的感受性與其影響因子
- 蔬菜種子誘釣法檢測無土介質之病原菌
- 無土育苗介質檢出之Rhizoctonia solani的病原性與族群動態
頁籤選單縮合
| 題 名 | 臺灣土壤中立枯絲核菌不同菌群之研究=Anastomosis Groups of Rhizoctonia Solani in Taiwan Soils |
|---|---|
| 作 者 | 莊再揚; | 書刊名 | 植物病理學會刊 |
| 卷 期 | 6:4 1997.12[民86.12] |
| 頁 次 | 頁163-170 |
| 分類號 | 434.225 |
| 關鍵詞 | 立枯絲核菌; 菌絲融合群; 雙核似絲核菌; Rhizoctonia solani; Anastomosis group; Binucleate rhizoctonia; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 比較大豆莖桿、花生莖桿及稻桿誘釣土壤中立枯絲核菌不同菌群之 14 個標準菌 株的效果,以大豆莖桿的誘釣效果最好,花生莖桿次之, 稻桿較差。 由全省各地採集 429 個土壤樣品, 以大豆莖桿誘釣,其中 183 個土壤樣品可分離到絲核菌,而不能分離到絲核 菌之土樣以溼篩法篩出有機質,置放於 KHAD 選擇性培養基上,仍然無法分離到絲核菌。在 此 183 個土樣分離到的 1,366 個菌株中,115 個土樣之 801 株為立枯絲核菌;93 個土樣 之 441 株為雙核似絲核菌,29 個土樣之 124 株屬 Waitea spp。在同一個土樣中可以分離 到不同種的絲核菌或立枯絲核菌的不同菌群。所分離的立枯絲核菌可鑑定出 AG-1、AG-4 及 AG-7 等三個已知菌群;AG-4 及 AG-7 分別由 65 個及 41 個土樣獲得,普遍分布於全省各 地土壤; AG-1 由 4 個土樣獲得,分別來自雲林、屏東和台東。 另外 7 個土樣所得的 41 個菌株無法與所有供試標準菌群作菌絲融合。以蘿蔔幼苗作病原性測定,結果顯示 AG-4 的 62 個菌株中,有 4 株為弱病原性外,其餘均具強病原性;而 AG-7 的 41 個菌株供試,祇 有 3 株具弱病原性,其餘均無病原性;AG-1 的 4 個菌株供試,有 2 株為強病原性。另外 無法歸類的立枯 絲核菌 7 株供試,其中 3 株具強病原性,4 株為弱病原性。以 15 種作物幼苗作接種試驗 ,結果顯示 AG-4 的病原性最強,但即使同一菌群的不同菌株,病原性差異亦很大。未歸群 的立枯絲核菌,依據菌絲融合可分為四群。它們的菌絲生長均不需要 Thiamine。將 41 個 菌株作有性世代的誘導,結果只有1株成功,而經鑑定結果為 Thanatephorus cucumeris。 |
| 英文摘要 | Compared the baits efficiency to isolate different anastomosis groups (AGs)of Rhizoctonia solani from artificially infested soil, soybean stem was the most effective, followed by peanut stem, rice staw was the least. One thousand three hundred and sixty-six isolates of Rhizoctonia spp. were isolated from 183 out of 429 soil samples collected throughout the Island by using soybean stems as baits. Among them, 801 isolates from 115 soil samples were identified as R. solani, 441 isolates from 93 soil samples were binucleate Rhizoctonia, and 124 isolates from 29 soil samples were Waitea spp. Three AGs, i.e. AG-1,AG-4, and AG-7 were identified from these R. solani isoltes. AG-4 and AG-7 were widespread in Taiwan soils. Forty-one isolates of R. solani from 7 soil samples were not capable of fusing with all testers which included AG-1~AG-10 and AG-BI. Pathogenicity test showed that AG-4 was the most virulent to the seedlings of 15 crops tested, as compared to AG-1 and AG-7. In addition, virulence of different isolates tested might vary within the same anastomosis group. All 41 isolates belonged to unidentified anastomosis groups of Rhizoctonia solani were thiamine-autotrophic. On the basis of reciprocal pairings, these isolates might be divided into four anastomosis groups. Only one out of 41 isolates was capable of producing perfect stage by soil-covered method and identified as Thanatephorus cucumeris. |
本系統中英文摘要資訊取自各篇刊載內容。