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頁籤選單縮合
題 名 | 百合灰黴病菌的黏著現象=Adhesive Phenomena of Botrytis Elliptica |
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作 者 | 謝廷芳; 黃振文; 張志展; | 書刊名 | 植物病理學會刊 |
卷 期 | 8:1 1999.03[民88.03] |
頁 次 | 頁15-22 |
分類號 | 435.456 |
關鍵詞 | 百合灰黴病菌; 黏著作用; 菌絲鞘; 代謝活性; 疏水性; Botrytis elliptica; Adhesion; Hyphal sheath; Metabolic activity; Hydrophobicity; |
語 文 | 中文(Chinese) |
中文摘要 | 百合灰黴病菌(Botrytis elliptica)孢子滴接在玻片上,於20 C 靜置60分鐘後 ,約有5%孢子黏著,120分鐘達25%,160分鐘達75%,180分鐘以後可達80%以上。以 polystyrene 和葵百合葉片(cv. Stat Gazer)作為基質時,孢子亦有相似的黏著時程。滴 接後120分鐘,孢子細胞內原生質體明顯顆粒化,並開始發芽。孢子黏著在玻片表面的百分 率隨著孢子發芽率的增加而增加,未發芽的孢子黏者能力較差,而孢子發芽者可緊密地黏著 在物體表面上。孢子黏著作用與物體表面的疏水性無明顯關係(r=0.190. p>0.05)。本菌 孢子的發芽形式有兩種,一為短而膨大型的發芽管,一為菌絲型發芽管。基質表面疏水性與 孢子產生膨大型發芽管的現象有關,表面疏水性越高,孢子產生膨大型發芽管的百分率越高 。孢子發芽後,在發芽管周圍可分泌黏膜物質,以助其黏著於其質表面。孢子已經過呼吸作 用抑制劑疊氮化納、氧化丙烯或80C熱水浴10分鐘後,其黏著在玻片和百合葉片上的百分率 明顯下降。綜合上述試驗顯示孢子的黏著作用與孢子的代謝活性有關。 |
英文摘要 | The nonspecific attachment of conidial germlings of Botrytis elliptica to various surfaces of substrata was examined. Washing experiments showed that 7% of the conidia began adhering to glass slides 60 min after dropping that was just prior to germination; after 120 min, approxminately 25% of the conidia resisted washing and remained firmly attached; not until 180 min were over 80% of conidia able to attach to the glass slide. Similar results were obtained from conidia dropped to surfaces of polystyrene and oriental lily leaf disks. The protoplasts of conidia obviously appeared granular and started germinating 120 min after inoculation at 20C. Attachment of conidia to the substrata was increased with the increment of conidial germination. A nongerminated conidium was significantly less able than a germinated conidium to adhere to the surface of a substratum. There was no correlation (r=0.190, p>0.05) between conidial adhesion and hydrophobicity of substrata. Conidia germinated with swelling and slender germ-tubes were observed. The hydrophobic substrata induced production of a swelling in germ-tubes form conidia. Light microscopy and SEM observations showed that an ensheathing material secreted from conidia and germ tubes appeared around the germlings of B. elliptica. Attachment of conidia was prevented by metabolic inhibitors such as sodium azide, propylene oxide and 80℃ -hot water. The results suggested that metabolic activity of the pathogen was required for conidial adhesion. |
本系統中英文摘要資訊取自各篇刊載內容。