Kretz A
Institut für Botanische Biologie und Phytochemie der Universität, CH-1700, Freiburg, Schweiz.
Planta. 1973 Mar;110(1):1-14. doi: 10.1007/BF00386918.
Samples of cambial sap from each of the three coniferous species Pinus sylvestris L., Picea Abies Karst. and Abies alba Mill. were taken at the time the trees were coming into bud and analysed for low molecular weight carbohydrates, cyclitols and organic acids. They all contained the same free sugars and cyclitols, but in markedly different proportions. Quantitative analyses were carried out for glucose, fructose, sucrose, raffinose, myo-inositol, D-inositol, pinitol, sequoyitol and coniferin.The three main components of the organic acid fractions-quinic acid, shikimic acid and malic acid-were determined quantitatively. The amount of quinic acid greatly exceeded the amount of all the other acids in all three species. (14)C-labelled quinic acid applied to the cut ends of Pinus sylvestris needles was transported to the twig. There was no conversion of quinic acid to shikimic acid over short periods of time.
在三种针叶树欧洲赤松（Pinus sylvestris L.）、欧洲云杉（Picea Abies Karst.）和欧洲冷杉（Abies alba Mill.）的芽萌动时采集形成层汁液样本，并对其进行低分子量碳水化合物、环醇和有机酸分析。它们都含有相同的游离糖和环醇，但比例明显不同。对葡萄糖、果糖、蔗糖、棉子糖、肌醇、D - 肌醇、松醇、水苏糖醇和松柏苷进行了定量分析。对有机酸组分的三种主要成分——奎尼酸、莽草酸和苹果酸——进行了定量测定。在所有三个树种中，奎尼酸的含量大大超过了所有其他酸的含量。将用¹⁴C标记的奎尼酸施用于欧洲赤松针叶的切口端，它被运输到了嫩枝。在短时间内奎尼酸没有转化为莽草酸。
