Differences in carboxylic acid exudation among p-starved leguminous crops in relation to carboxylic acid contents in plant tissues and phospholipid level in roots
Differences in carboxylic acid exudation among p-starved leguminous crops in relation to carboxylic acid contents in plant tissues and phospholipid level in roots
复制标题
饥饿豆科作物中羧酸渗出的差异与植物组织中羧酸含量和根中磷脂水平的关系
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
H. Hirata
中科院分区：
文献类型：
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作者：
Y. Ohwaki;H. Hirata
摘要 比较了水培缺磷3 d的豆科作物根系分泌物和组织提取物中羧酸的含量或组成。还比较了缺磷3 d的植物根部磷部分的分布和磷含量的变化。在 12 小时内收集的根部分泌物中，检测到丙二酸、琥珀酸、富马酸、苹果酸、柠檬酸和 t-乌头酸。与大豆、芸豆、豇豆和木豆相比，鹰嘴豆根部渗出大量这些羧酸，特别是柠檬酸和苹果酸。花生根渗出大量的羧酸，尤其是富马酸。尽管与大豆、芸豆和豇豆相比，鹰嘴豆叶和根提取物中这些羧酸的含量最高，但差异远小于根分泌物中的差异显着。羧基的含量和组成...
Abstract The amount or composition of carboxylic acids in the root exudates and tissue extracts of leguminous crop plants subjected to P starvation for 3 d in water culture were compared. Also, the changes in the distribution and P content of the P fractions of the roots of the plants subjected to P starvation for 3 d were compared. In the root exudates collected over a 12 h period, malonic, succinic, fumaric, malic, citric, and t-aconitic acids were detected. A large amount of these carboxylic acids, especially citric and malic acids, was exuded from the roots of chickpea as compared with those of soybean, kidney bean, cowpea, and pigeonpea. Groundnut roots exuded an appreciable amount of carboxylic acids, especially fumaric acid. Although the contents of these carboxylic acids in the extracts of leaves and roots of chickpea were the highest as compared with soybean, kidney bean, and cowpea, the differences were much less significant than those in the root exudates. The amount and composition of carboxyl...