大豆科学2011，Vol.30Issue(1)：127-130,4.
磷影响大豆根系分泌有机酸总量和不同根区有机酸量
Phosphorus Affected Organic Acid Exudation from Soybean Root
摘要
Abstract
To study the effect of phosphorus on organic acid exudation of soybean root, the phosphorus level changed from 0 to 50 μM and 50 to 0 μM in nutrient solution was carried out. The low-molecular-weight organic acids in root exudates of soybean were determined by high performance liquid chromatography under nutrient solution culture. The dynamics of low-molecular-weight organic acids under different root region were investigated. The influence of P-deficiency on soluble phosphorus content was analyzed. The results showed that the soluble phosphorus content of root in 50-0 treatment was relative higher,while that of shoot in 0-50 treatment was relative higher. Otherwise, organic acid exudation from 50-0 treatment soybean root was larger than 0-50 treatment. The amount of organic acid exudation from soybean root was reduced as far away root tip. The trend of decrease in 50-0 treatment was more slowly than 0-50 treatment.关键词
低分子量有机酸/磷转换/可溶性磷/大豆Key words
Low molecular weight organic acid/ Phosphorus transform/ Soluble phosphorus/ Soybean分类
农业科技引用本文复制引用
苗淑杰,乔云发,刘晓冰..磷影响大豆根系分泌有机酸总量和不同根区有机酸量[J].大豆科学,2011,30(1):127-130,4.基金项目
农业部油料作物生物学重点开放实验室开放课题资助项目(201009) （201009）
黑龙江省青年科学基金资助项目(QC2009C59) （QC2009C59）
中国科学院东北地理与农业生态研究所青年博士基金资助项目. （）
