[1]王树起,韩晓增,乔云发,等.缺磷胁迫条件下大豆根系有机酸的分泌特性[J].大豆科学,2009,28(03):409-414.[doi:10.11861/j.issn.1000-9841.2009.03.0409]
　WANG Shu-qi,HAN Xiao-zeng,QIAO Yun-fa,et al.Characteristics of Organic Acids Exudated from Soybean(Glycine max L.）Roots under P Deficiency Stress[J].Soybean Science,2009,28(03):409-414.[doi:10.11861/j.issn.1000-9841.2009.03.0409]
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缺磷胁迫条件下大豆根系有机酸的分泌特性

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第28卷 期数: 2009年03期 页码: 409-414 栏目: 出版日期: 2009-06-25
Title:
Characteristics of Organic Acids Exudated from Soybean(Glycine max L.）Roots under P Deficiency Stress
文章编号:
1000-9841(2009)03-0409-06
作者:
王树起; 韩晓增; 乔云发; 严君; 李晓慧
中国科学院东北地理与农业生态研究所，黑龙江 哈尔滨 150081
Author(s):
WANG Shu-qi; HAN Xiao-zeng; QIAO Yun-fa; YAN Jun; LI Xiao-hui
Northeast Institute of Geography and Agricultural Ecology，Chinese Academy of Sciences，Harbin 150081，Heilongjiang，China
关键词:
缺磷胁迫; 有机酸分泌; 大豆
Keywords:
.Pdeficiency stress; Organic acids exudation; Soybean
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2009.03.0409
文献标志码:
A
摘要:
采用水培和砂培方法检测了缺磷胁迫条件下大豆不同生育时期根系有机酸的分泌总量和组分的变化，结果表明：不同磷处理对大豆根系分泌有机酸有显著的影响，缺磷胁迫条件下，不论是有机酸总量还是各有机酸组分的含量均显著高于正常供磷水平，差异显著，表明缺磷胁迫是促进大豆根系分泌有机酸的一个重要原因；大豆根系有机酸的分泌随生育时期而变化，表现为先增加后降低，在花期达到分泌高峰；大豆根系分泌的有机酸各组分在水培和砂培条件下基本一致，主要以苹果酸、柠檬酸、草酸、酒石酸等为主，砂培条件下有机酸的分泌量为水培条件下的2~3倍。
Abstract:
Most of the farmlands in the world are lack of P，organic acids exudates from plant roots increase under P deficiency stress.Plants form several adaptability mechanisms to adapt the P deficiency environment.In this study，solution culture and sand culture experiments were conducted to investigate the variation of total and components of organic acids exudates from soybean roots under P deficiency stress.The results showed that different P levels significantly affected organic acids exudating from soybean roots，whether the total or components of organic acids under P deficiency remarkably higher than that in normal P supplying，suggested that P deficiency stress is an important factor induced organic acids exudating from soybean roots.Exudation of organic acids from soybean roots varied with growth stages，which showed firstly increasing and then declining，exudation peak appeared at flowering stage.The components of organic acids from soybean roots were almost the same as in solution culture and sand culture experiment，were mainly as malic acid，citric acid，oxalic acid and tartaric acid，the amount of organic acids exudates from soybean roots in sand culture experiment was 2-3 times as in solution culture experiment

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相似文献/References:

[1]郭晓双,吴冬婷,周 全,等.缺磷胁迫对大豆植株磷素与干物质积累的影响[J].大豆科学,2014,33(04):545.[doi:10.11861/j.issn.1000-9841.2014.04.0545]
　GUO Xiao-shuang,WU Dong-ting,ZHOU Quan,et al.Effect of Phosphorus Deficiency Stress on Phosphorus and Dry Matter Accumulation in Soybean[J].Soybean Science,2014,33(03):545.[doi:10.11861/j.issn.1000-9841.2014.04.0545]

备注/Memo

基金项目：中国科学院知识创新工程重要方向资助项目（KSCX2-YW-N-002, KZCX2-YW-407）；国家科技支撑计划资助项目 (2006BAD21B01)。

作者简介：王树起（1968-），男，副研究员，博士后，主要从事植物营养和土壤生态方面的研究。E-mail: wsq-200131@sohu.com， wangshuqi126@126.com。
通讯作者：韩晓增，研究员，博士生导师。E-mail: hanxz@cern.ac.cn。

更新日期/Last Update: 2014-09-25