頁籤選單縮合
題 名 | 碳氮源影響拮抗細菌防治百合灰黴病的效應=Effect of Nitrogen and Carbon Sources on Biocontrol of Lily Leaf Blight by Bacillus Cereus and Paenibacillus Polymyxa |
---|---|
作 者 | 謝廷芳; 黃振文; 張志展; 彭玉湘; | 書刊名 | 植物病理學會刊 |
卷 期 | 10:2 2001.06[民90.06] |
頁 次 | 頁79-87 |
分類號 | 433.4、433.4 |
關鍵詞 | 碳素源; 氮素源; 拮抗細菌; 百合灰黴病菌; 生物防治; Antagonistic bacteria; Biocontrol; Botrytis elliptica; Carbon source; Nitrogen source; And nutrient effect; |
語 文 | 中文(Chinese) |
中文摘要 | 評估碳素源及氮素源對Bacillus cereus D-NYDA-602和Paenibacillus polymyxa Y-NYDA-21兩株拮抗細菌抑制百合灰黴病(由Botrytis elliptica引起)之功效,結果發現氮素與碳素源均會影響兩拮抗菌的抑病效率。在24種氮素源中,大多數的氨基酸皆可提昇P. polymyxa Y-NYDA-21菌株的抑病效率,惟僅有少數氬基酸可促進B. cereus D-NYDA-602菌株的抑病效果。此外,選擇十二種氨基酸培養兩菌株七天後,也發現大部份的氬基酸皆可提昇P. polmyxa Y-NYDA-21抑制百合灰黴病的病斑產生,惟只有DL-ornithine和DL-tyrosine可有效促進B. cereus D-NYDA-602降低灰黴病病斑數的能力。至於十一種碳素源中,則以D(+)-glucose、α-lactose hydrate、D(+)-mannose和D(-)-ribose等四種能顯著促進兩株拮抗菌的抑病效果。比較不等量之DL-ornithine與D(+)-glucose或D(+)-mannose組合配方的防治病害效果,結果顯示1%(w/v) DL-ornithine分別與0.5%(w/v) D(+)-glucose或1%(w/v) D(+)-mannos之組合最能抑制百合灰黴病之發生,進一步,在溫室與田間利用1%(w/v)DL-ornithine與1%(w/v) D(+)-mannose培養P. polymyxa Y-NYDA-21七天之稀釋培養液、過濾液及菌體等防治百合灰黴病,結果顯示三者均具有減輕百合灰黴病發生的功效。 |
英文摘要 | The effect of various carbon and nitrogen sources on antagonistic efficiency of two antagonists, Bacillus cereus D-NYDA-602 and Paenibacillus polymyxa Y-NYDA-21, for control of lily leaf blight caused by Botrytis elliptica was evaluated using the leaf disk assay, greenhouse tests, and field trials. Twenty-four nitrogen or 11 carbon sources were respectively utilized to replace NaNO3 or sucrose of a modified Czapek-Dox solution formula and to culture two biocontrol agents for seven days. The results indicated that the inhibition effect of the two biocontrol agents on lily leaf blight could be markedly influenced by several nitrogen and carbon sources in their growth substrates. Among the 24 amino acids tests, most of them were able to increase ability of P. polymyxa Y-NYDA-21 to decrease the disease severity, however only a few could enhance suppressive ability of B. cereus D-NYDA-602 in leaf dick assays. In advance tests, 12 amino acids were selected to evaluate for their effectiveness in culturing two biocontrol agents. It was found that both DL-ornithine and DL-tyrosine were significantly effective in enhancing the antagonistic ability of P. polymyxa Y-NYDA-2l and B. cereus D-NYDA-602 against B, elliptical to induce, lesion numbers in lily leaf disks. Among 11 carbon sources tested, D(+)-glucose,α-lactose hydrate, D(+)-mannose, and D(-)-ribose were proved to make the biocontrol agents showing stronger antagonistic effect. Thereforc, DL-ornithine, D (+)-glucose, and D (+)-mannose were elected as N-and C-source components of the modified Czapek-Dox solution for cultivation of two biocontrol agents. The nutrient Solution consisted of 1% (w/v) ornithine and 0.5% (w/v) glucose (OG solution) or 1%(w/v) mannose (OM solution) was effective in reducing lesion numbers of the disease. To conduct the disease control trials in the greenhouse and field, P. polymyxa Y-NYDA-21 was cultured in the OM Solution for seven days. The culture Solution was separated into filtrate and biomass for study. The results indicated that three treatments including cultured solution, filtrate, and biomass could reduce the disease severity of lily leaf blight. |
本系統中英文摘要資訊取自各篇刊載內容。