| 磷影响大豆根系分泌有机酸总量和不同根区有机酸量 |
| |
| 引用本文： | 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. |
| |
| 作者姓名： | 苗淑杰 乔云发 刘晓冰 |
| |
| 作者单位： | 苗淑杰,MIAO Shu-jie(农业部油料作物生物学重点开放实验室,湖北,武汉,430062;中国科学院,东北地理与农业生态研究所,黑龙江,哈尔滨,150081);乔云发,刘晓冰,QIAO Yun-fa,LIU Xiao-bing(中国科学院,东北地理与农业生态研究所,黑龙江,哈尔滨,150081) |
| |
| 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，黑龙江省青年科学基金，中国科学院东北地理与农业生态研究所青年博士基金 |
| |
| 摘 要： | 采用营养液培养的方法,设置由无磷转化为供磷(0-50)和由供磷转换为无磷(50-0)2个处理,分析了磷转换处理对不同根区有机酸的影响.结果表明:大豆生长对磷素的需求非常迫切,50-0处理根系可溶性磷含量相对较高,而0-50处理地上部可溶性磷含量相对较高;50-0处理根系有机酸分泌量较0-50处理大,而且分泌量随着距离根...
|
| 关 键 词： | 低分子量有机酸 磷转换 可溶性磷 大豆 |
Phosphorus Affected Organic Acid Exudation from Soybean Root |
| |
| MIAO Shu-jie,QIAO Yun-fa,LIU Xiao-bing.Phosphorus Affected Organic Acid Exudation from Soybean Root[J].Soybean Science,2011,30(1):127-130. |
| |
| Authors: | MIAO Shu-jie QIAO Yun-fa LIU Xiao-bing |
| |
| Institution: | MIAO Shu-jie1,2,QIAO Yun-fa2,LIU Xiao-bing2(1.Key Laboratory for Oil Crops Genetic Improvement,The Ministry of Agriculture,Wuhan 430062,Hubei,2.Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Sciences,Harbin 150081,Heilongjiang,China) |
| |
| 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. |
| |
| Keywords: | Low molecular weight organic acid Phosphorus transform Soluble phosphorus Soybean |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
