• 作者： 陳琇瑜; 楊棋明
• 作者服務機構： 國立中興大學農藝系; 中央研究院植物研究所
• 中文摘要： 本文探討溫度對正常榕和黃金榕葉的葉綠素和類胡蘿蔔素含量、葉綠素a/b比和類胡蘿蔔素∕葉綠素比的影響。當正常榕只調節其葉綠素含量時，黃金榕同時調節葉綠素含量和葉綠素a/b比，顯示黃金榕調節兩個光系統的捕光天線的組成和大小以適應溫度的變化。於此二生物型，發育中葉的葉綠素表現比成熟葉對溫度更敏感。似乎是，葉綠素的缺失並不是直接伴隨著類胡蘿蔔素的減少，而可能是葉綠素a/b比的改變直接伴隨著類胡蘿蔔素／葉綠素比的改變。
• 英文摘要： We compared the influence of temperature on the chlorophyll (Ch1) and carotenoid contents, andthe Ch1 a/b and carotenoids/Ch1 ratios of leaves in normal and Golden-leaf figs (Ficus macrocarpa cv.Golden-leaves). While normal fig adjusts only the Ch1 content, Golden-leaf fig adjusts both the Ch1 contentand Ch1 a/b ratio, suggesting that Golden-leaf fig adjusts the size and composition of antenna in the twophotosystems to adapt to temperature changes. In both of these biotypes, Ch1 expression in the developingleaves is more sensitive to temperature than is that in the mature leaf. It appears that the deficiency oftotal Ch1 is not directly accompanied by a loss of total carotenoid, but the alteration of Ch1 a/b ratios isdirectly accompanied by alteration of the carotenoids/Ch1 ratios.
• 中文關鍵字： carotenoid; chlorophyll; golden-leaf fig; light-sensitivity; temperature-sensitivity.
• 英文關鍵字： --