The Relationship between Chlorophyllide Accumulation, the Amount of Protochlorophyllide636 and Protochlorophyllide650 in Dark Grown Wheat Leaves Treated with δ‐Aminolevulinic Acid
The Relationship between Chlorophyllide Accumulation, the Amount of Protochlorophyllide636 and Protochlorophyllide650 in Dark Grown Wheat Leaves Treated with δ‐Aminolevulinic Acid
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δ-氨基乙酰丙酸处理的深色小麦叶片中叶绿素积累与原叶绿素636和原叶绿素650含量的关系
DOI：
10.1111/j.1399-3054.1973.tb08590.x
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发表时间：
1973
影响因子：
6.4
通讯作者：
C. Sundqvist
中科院分区：
文献类型：
--
作者：
C. Sundqvist
研究了不同浓度的原叶绿素636和原叶绿素350对光诱导叶绿素形成的影响。研究了δ-氨基乙酰丙酸处理的小麦叶片。原叶绿酸的光转化在弱红光下进行。这种转化不受δ-氨基乙酰丙酸处理的影响，而叶绿素的积累，无论是速率还是量，都受到中等量的原叶绿素的极大刺激636。大量原叶绿酸636的存在降低了叶绿酸形成的速率，但增加了最终形成的叶绿酸的量。通过用NaN 3处理获得的降低水平的原叶绿素650导致降低的转化率。抑制剂;的蛋白质合成似乎不影响原叶绿素636转化为叶绿素，这表明不需要新的蛋白质合成。实验结果表明，叶绿素生物合成的最后步骤是原叶绿素636 →原叶绿素650 →叶绿素→叶绿素。
The influence of different amounts of protochlorophyl-lide636 and protochlorophyllide350 on light Induced chloro-phyllide formation was. studied in wheat leaves treated with δ-aminolevulinic acid. The phototransformation of proto-chlorophyllide was performed with weak red light. This transformation is unaffected by the δ-aminolevulinic acid treatment, whilst the accumulation of chlorophyllide, both the rate and the amount, is greatly stimulated by moderate amounts of protochlorophyllide636. The presence of large amounts of protochlorophyllide636 decreases the rate of chlorophyllide formation, but increases the final amount of chloro-phyllide formed. A decreased level of protochlorophyllide650, obtained by treatment with NaN3, results in a decreased transformation rate. Inhibitors; of protein synthesis do not seem to influence the transformation of protochlorophyllide636 to chlorophyllide, suggesting that no new synthesis of protein is required. The experimental results indicate that the final steps in chlorophyll biosynthesis are protochlorpnyllide636→ protochlorophyllide650→ chlorophyllide → chlorophyll.