頁籤選單縮合
題名 | Nitrogen Metabolism Associated with Pollen Grain Germination=花粉粒萌芽期間氮的代謝作用 |
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作者 | 林英子; 周德源; 林秋榮; | 書刊名 | 國立臺灣大學理學院植物學系研究報告 |
卷期 | 16:1 1971.03[民60.03] |
頁次 | 頁67-84 |
關鍵詞 | |
語文 | 英文(English) |
英文摘要 | The germination of pollen grains collected from a long period blooming flower (Lily, Lilium longiflorum) was studied. It was found that the germination pattern of the two plants was quite different. The protein content in germinating pollen of lily increased steadily are reached a maximum in 90 minutes and then decreased. In contrast, gourd pollen had a larger amount of protein content before germination and decreased gradually during germination. It seems that for pollen germination, the lily required the synthesis of some new proteins but the gourd did not. The hypothesis was further proved by the cycloheximide inhibition test for protein synthesis. When cycloheximide was added to the germinating pollen at the beginning, lily pollen tube elongation was entirely inhibited, whereas gourd tube elongation continued. From the pattern of protein metabolism during germination, the mechanism for the imitation of the tube elongation of these two kinds of pollen may be different. RNA metabolism and free amino acids content were determined. Both the lily and gourd pollen synthesized new RNA for tube elongation. During germination, free amino acids tended to increase. |
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