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| 題 名 | 轉殖植酸酵素基因水稻之農藝性狀及田間生物安全性評估=Field Assessment of Agronomic Performance and Biosafety of Phytase-gene Transformed Rice |
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| 作 者 | 曾清山; 吳明哲; 黃鴻章; 賴明信; 陳治官; | 書刊名 | 臺灣農業研究 |
| 卷 期 | 57:3 2008.09[民97.09] |
| 頁 次 | 頁175-182 |
| 分類號 | 434.111 |
| 關鍵詞 | 水稻; 基因轉殖作物; 植酸酵素基因; 農藝性狀; Rice; Genetically modified crops; Phytase-gene; Agronomic traits; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 轉殖植酸酵素基因水稻品系,是由水稻台農67號品種轉殖植酸酵素基因(phytase-gene)所產生的基因轉殖水稻,本研究目的在評估轉殖植酸酵素基因水稻的田間生物安全,以確保在自然環境中,對目前已有農作物耕種及環境無不良影響。本試驗於農業試驗所隔離田進行,結果顯示轉殖植酸酵素基因水稻的株高、穗長、穗重及產量顯著低於對照受體品種台農67號。轉殖植酸酵素基因水稻每公頃平均產量爲4,608kg,遠低於台農67號的7,040kg。無論是轉殖植酸酵素基因水稻或是台農67號,其發芽勢及發芽率均受低溫影響,在低溫15℃環境下,轉殖植酸酵素基因水稻發芽勢低於台農67號,而發芽率則高於台農67號,二者之間有顯著的差異。幼苗生長勢試驗除了93年第一期作轉殖植酸酵素基因水稻在25℃下的根長度爲6.26cm低於台農67號的8.97cm,且達顯著水準外,其餘水稻幼苗性狀表現結果均未達顯著水準。轉殖植酸酵素基因水稻之發芽率及幼苗生長勢與台農67號差異不顯著,且後代生殖率顯著較低(單位面積稻榖產量),其轉殖之基因亦不具抗除草劑之能力,推論其演變成有害植物之可能性與台農67號沒有差異。 |
| 英文摘要 | A field study was conducted to assess performance and biosafety of the phytase-gene transformed rice (Oryza sativa L.), strain AAN, originated from the cultivar Tainung 67. Seedlings of phytase-transgenic and non-transgenic (control) rice were transplanted into an isolation field at the Agricultural Research Institute, Wufeng, Taichung, Taiwan, and compared for plant growth and yield. There were two experiments in this study with the first experiment was carried out during the second crop season, from August to December, 2003 and the second experiment was carried out during the first crop season, from February to June, 2004. Results showed that plant height, panicle length, panicle weight and seed yield of phytase-transgenic rice were significantly lower (P<0.05) than those of non-transgenic rice. Compared to the temperatures of 25℃ and 30℃, seed germination rate and germination speed were reduced in both transgenic and non-transgenic rice under the temperature of 15℃. However, compared to the non-trangenic rice at 15℃, seeds of phytase-transgenic rice had a significantly lower rate of germination but a significantly higher speed of germination. There was no significant difference (P>0.05) in growth vigor of rice seedlings between phytase-transgenic and non-transgenic plants except for root length which was shorter in transgenic plants (6.5cm) but longer in non-trangenic plants (8.97cm) for the test at 25℃ in the experiment of Spring of 2004. |
本系統中英文摘要資訊取自各篇刊載內容。