School of Biological Sciences, University of Malaya, Kuala Lumpur, Malaysia.
Planta. 1968 Mar;81(1):38-48. doi: 10.1007/BF00385513.
The metabolism of RNA and protein in the gametophytes of bracken fern (Pteridium aquilinum) is affected by the quality of light in which they are grown. When sporelings were grown as two-dimensional gametophytes in blue light, particulate fractions separated from the sporelings exhibited greater incorporation of uridine-(3)H and leucine-(3)H into RNA and protein, respectively, than those from sporelings grown as one-dimensional protonema in red light. After various periods of exposure of gametophytes to red or blue light in the presence of uridine-(3)H, the nuclei-rich fraction showed the highest specific activity in RNA, and irrespective of incubation time, blue light was more effective than red light. The possibility that enhanced synthesis of RNA in the nucleus in response to blue light is significantly related to the morphological growth pattern of the gametophytes, is discussed.
在蕨类植物（Pteridium aquilinum）配子体的 RNA 和蛋白质代谢受到其生长光照质量的影响。当孢子体在蓝光下作为二维配子体生长时，与在红光下作为一维原丝体生长的孢子体相比，从孢子体分离的颗粒部分分别将尿嘧啶-（3）H 和亮氨酸-（3）H 掺入 RNA 和蛋白质的量更大。在存在尿嘧啶-（3）H 的情况下，将配子体暴露于红光或蓝光下一段时间后，富含核的部分在 RNA 中的比活度最高，并且无论孵育时间如何，蓝光比红光更有效。讨论了增强的细胞核中 RNA 合成与配子体形态生长模式之间的关系。
